-
Determining land subsidence potential using the evidential belief function model: A case study for the Bardaskan Aquifer, Iran Nat. Resour. Model. (IF 1.6) Pub Date : 2024-03-11 Mehdi Eghbali, Maryam Azarakhshi, Mohammad R. Khalaj
In this study, we employed the evidential belief function model (EBF) to evaluate the potential for land subsidence in the primary aquifer of Bardaskan. Through field visits, we recorded GPS coordinates for 174 land subsidence points. Factors considered in assessing land subsidence potential included well density, groundwater extraction rate, geological characteristics, proximity to faults, vegetation
-
Who moves first? Resource price interdependence through time‐varying Granger causality Nat. Resour. Model. (IF 1.6) Pub Date : 2024-03-07 Roberto Esposti
This paper investigates the interdependence among natural resource prices. Commodities belonging to three different groups (energy commodities, metals, agricultural commodities) are considered. The analysis is performed via a battery of time‐varying Granger causality tests. They allow to assess whether price interdependence occurs and to identify the candidate first movers. These tests also allow observing
-
Willingness‐to‐pay for the conservation of endangered frog species in Taiwan Nat. Resour. Model. (IF 1.6) Pub Date : 2024-02-20 Jerald M. Velasco, Wei‐Chun Tseng, Yi‐Hsuan Chang, Ya‐Wen Chiueh, Wan‐Yu Liu, Chia‐Lin Chang
Taiwan's awareness of environmental conservation and biodiversity has been increasing in recent years. As frog plays a vital role in the environment and recreational activities in Taiwan, this study aimed to quantify the willingness‐to‐pay (WTP) of the public for conserving the selected endangered frog species. Respondents were asked using a semistructured questionnaire with auxiliary audio and video
-
Optimal harvesting policy for biological resources with uncertain heterogeneity for application in fisheries management Nat. Resour. Model. (IF 1.6) Pub Date : 2024-01-31 Hidekazu Yoshioka
Conventional harvesting problems for natural resources often assume physiological homogeneity of the body length/weight among individuals. However, such assumptions generally are not valid in real-world problems, where heterogeneity plays an essential role in the planning of biological resource harvesting. Furthermore, it is difficult to observe heterogeneity directly from the available data. This
-
Beyond age-structured single-species management: Optimal harvest selectivity in the face of predator–prey interactions Nat. Resour. Model. (IF 1.6) Pub Date : 2024-01-12 Rasmus Noss Bang, Stein Ivar Steinshamn
In the single-species literature, it is widely acknowledged that conserving young fish for future harvesting is beneficial. This finding holds great significance in fisheries economics and has garnered substantial attention over the years. In this study, a full-blown age-structured predator–prey model is developed and used to demonstrate that multispecies considerations may shift the optimal selection
-
How does the green efficiency of urban land use evolve in the urban agglomeration of China's middle Yangtze river? Nat. Resour. Model. (IF 1.6) Pub Date : 2023-12-05 Jiaxuan Hong, Yanling Mao
The urban agglomeration in the middle reaches of the Yangtze river (MYRUA) is the second largest national urban agglomeration in China, with an excellent ecological foundation. As the construction of urban agglomerations accelerated towards both extension and connotation, land prices of various cities rose, and the contradiction in the demand and utilization of land resources became acute. Therefore
-
The optimal combination of pastoral activities and wildlife conservation in the Serengeti ecosystem Nat. Resour. Model. (IF 1.6) Pub Date : 2023-12-05 Gerald Kibira, Edwin Muchapondwa, Herbert Ntuli
There is competition for land between Maasai pastoralists and the park agency in the Serengeti ecosystem. The park agency wants to use the land for wildlife conservation while the pastoralist community wants to use it for livestock grazing. Predatory wildlife kills livestock while herbivorous wildlife competes with livestock for water and grazing. In retaliation, the Maasai hunt predators and grazers
-
When profitability meets conservation objectives through biodiversity offsets Nat. Resour. Model. (IF 1.6) Pub Date : 2023-11-15 Celine Huber, Luc Doyen, Sylvie Ferrari
Biodiversity offsets (BOs) are increasingly used as economic instruments to manage biodiversity and ecosystem services in the context of economic development. This study investigates the sustainability conditions of BOs. It focuses especially on both the timing and pricing of BOs in development-offset projects. To address this issue, a minimal time control model is proposed, allowing a dynamic and
-
Maximum sustainable yield as a reference point in the presence of fishing effort that follows an ideal free distribution Nat. Resour. Model. (IF 1.6) Pub Date : 2023-11-14 Darren M. Gillis, Jonah Koscielny, Benjamin Blanz
The concept of maximum sustainable yield (MSY), and the underlying Schaefer model, remain relevant in fisheries management today in spite of past difficulties. However, this model is often applied without the consideration of the spatial structure or dynamics of fishing activities. We expand the Schaefer model to account for multiple fishing sites and fishing activities (effort) that follow an ideal
-
Paying for forest carbon: Cost-effectiveness of the Verified Carbon Standard (VCS) remuneration scheme Nat. Resour. Model. (IF 1.6) Pub Date : 2023-11-03 Yonky Indrajaya, Hans-Peter Weikard, Frits Mohren, Edwin van der Werf
Forests play an essential role in climate change mitigation by absorbing carbon dioxide from the atmosphere and storing carbon in biomass. Carbon sequestration can be increased by the extension of rotation cycles in existing plantation forests. This study examines the cost-effectiveness of the remuneration scheme employed by Verified Carbon Standard (VCS), a commonly used carbon accounting method based
-
Evaluating feedback dynamics between poaching and population with an application to Indian tigers Nat. Resour. Model. (IF 1.6) Pub Date : 2023-09-11 Adrian A. Lopes
A cornerstone of conservation policy for endangered species subject to illegal harvest involves estimating their population and offtake numbers. Census enumerations are expensive to conduct on nationwide scales, especially in resource-constrained countries housing such species. Resource and data limitations necessitate the estimation of population counts. The effect of poaching on species recruitment
-
Measurement error effects on estimates from linear and nonlinear regression whole-stand yield models Nat. Resour. Model. (IF 1.6) Pub Date : 2023-08-17 John M. Zobel
Systems of whole-stand yield models facilitate projections of forest attributes, but their inputs may be difficult to measure accurately. This study conducted sensitivity analyses to examine the effect of systematic and stochastic measurement errors on outputs from a representative system of equations. Simulated error was added to explanatory variables stand age, site index, or both. Results showed
-
Flood-oriented watershed health and ecological security conceptual modeling using pressure, state, and response (PSR) approach for the Sharghonj Watershed, South Khorasan Province, Iran Nat. Resour. Model. (IF 1.6) Pub Date : 2023-08-13 Reza Chamani, Seyed Hamidreza Sadeghi, Somaye Zare, Hengameh Shekohideh, Azam Mumzaei, Hamed Amini, Laila Hemmati, Reza Zarei
Today, watersheds have changed under the influence of various environmental and human factors, and their expected performance has decreased in terms of meeting human needs, providing natural responses, and reducing environmental risks. However, evaluating health status and its impact on various factors has not been given enough attention. To this end, an attempt has been made to evaluate the health
-
Computing parameter identifiability and other structural properties for natural resource models Nat. Resour. Model. (IF 1.6) Pub Date : 2023-08-11 J. D. Stigter
For dynamic natural resource models a few fundamental questions are often omitted in practice such as (i) “Is it possible to calibrate the model?” and (ii) “Can we reconstruct all unknown dynamic state variables given a certain data record?” Other related questions are (iii) “Does the system allow the state variables to be controlled (or managed) to desired optimal values (e.g., in case of maximum
-
World population outpacing 2003 model predictions Nat. Resour. Model. (IF 1.6) Pub Date : 2023-08-10 Lee Badger
In Spring 2003 I published A Global Model of Population-Resource Interaction in NRM (Published on line by Wiley in June, 2008). After 20 years it may be time to see how prediction compares with observation. Today (July 1, 2023) the UN World Population Dashboard puts world population at 8.045 billion. The 2003 model predicted 7.8 billion. The UN measurement of world population has consistently outpaced
-
Pacific Northwest conifer forest stand carrying capacity under future climate scenarios Nat. Resour. Model. (IF 1.6) Pub Date : 2023-07-02 Ryan R. Heiderman, Mark J. Kimsey
Maximum stand density index (SDIMAX) represents the carrying capacity of a forest stand based on the relationship between the number of trees and their size. Plot-level inventory data provided through a collaborative network of federal, state, and private forest management groups were utilized to develop SDIMAX models for important Pacific Northwest conifers of western Washington and Oregon, USA. The
-
Comparative applicability of MCDM-SWOT based techniques for developing integrated watershed management framework Nat. Resour. Model. (IF 1.6) Pub Date : 2023-06-13 Ali Nasiri Khiavi, Mehdi Vafakhah, Seyed Hamidreza Sadeghi
Environmental planning facilitates decision-making to achieve sustainable development goals and provides a crucial way to achieve integrated watershed management (IWM). However, such systematic planning has not been adequately conducted worldwide. Therefore, this study was conducted to develop an IWM framework using SWOT (i.e., strengths, weaknesses, opportunities, and threats) model for the Cheshmeh–Kileh
-
Soil erosion variations along land use and land cover dynamics in Matenchose watershed, Rift Valley Basin, Southern Ethiopia Nat. Resour. Model. (IF 1.6) Pub Date : 2023-06-05 Markos Mathewos, Misgena Tsegaye, Nigatu Wondrade
The global community recognizes land use and land cover change (LULC) as a primary cause of ecological modification that has a considerable impact on natural resources, particularly soil and water resources. The aim of this research was to investigate land use change's influences on soil erosion in the Matenchose watershed of Ethiopia in 1991, 2003, and 2020. The maximum likelihood classification (MLC)
-
Planning and optimization of green infrastructures for stormwater management: The case of Tehran West Bus Terminal Nat. Resour. Model. (IF 1.6) Pub Date : 2023-05-22 Iman Saeedi, Ali Reza Mikaeili Tabrizi, Abdolreza Bahremand, Abdolrassoul Salmanmahiny
Green Infrastructures as Best Management Practice (GI-BMP) play important role in preserving cities from urban flood and excessive runoff. In the process of using GI-BMP in cities for stormwater management, a number of steps are taken that normally include selection of suitable sites, formulating proper combination of infrastructures, and optimization of the place and design of GI-BMPs to maximize
-
Approximately optimal forest rotation in a nonstationary environment Nat. Resour. Model. (IF 1.6) Pub Date : 2023-05-03 Johan Gars, Daniel Spiro
The problem of optimal forest rotation in a nonstationary environment can, in general, not be solved analytically. Even qualitatively characterizing how the solution changes over time is only possible in some special cases. In this paper, we consider an approximation of the true solution to the nonstationary problem. We derive an approximate harvesting rule by solving a sequence of stationary problems
-
Technological innovation, natural resources, financial inclusion, and environmental degradation in BRI economies Nat. Resour. Model. (IF 1.6) Pub Date : 2023-04-28 Kishwar Ali, Du Jianguo, Dervis Kirikkaleli, Zoltán Bács, Judit Oláh
This research aimed to examine the relationship between financial inclusion (FNI), technological innovation (TIN), and natural resources (NRS) and their impact on environmental degradation in the 45-belt and road initiative (BRI) region from 2001 to 2018. The study utilized advanced econometric techniques, including the generalized method of moments–panel vector autoregressive, as well as traditional
-
Watershed health and ecological security modeling using anthropogenic, hydrologic, and climatic factors Nat. Resour. Model. (IF 1.6) Pub Date : 2023-03-16 Seyed Hamidreza Sadeghi, Mostafa Zabihi Silabi, Hossein Sarvi Sadrabad, Mohammadreza Riahi, Sedigheh Modarresi Tabatabaei
Assessing the health and security of natural ecosystems is unavoidable to regulate and manage deterioration and prioritize management and conservation activities. As a result, the current study was conducted to assess the health and ecological security of the Galazchai Watershed in Oshnavieh Township, West Azerbaijan Province, Iran, utilizing criteria linked to various hydrologic, anthropogenic, and
-
Climate change and river water pollution: An application to the Ganges in Kanpur Nat. Resour. Model. (IF 1.6) Pub Date : 2023-02-27 Amitrajeet A. Batabyal, Karima Kourtit, Peter Nijkamp
We provide a theoretical framework to analyze how climate change influences the Ganges and how this influence affects pollution in the river caused by tanneries in Kanpur, India. We focus on two tanneries, A $A$ and B , $B,$ that are situated on the same bank of the Ganges in Kanpur. Both produce leather and leather production requires the use of noxious chemicals. Tannery A $A$ is situated upstream
-
Does ecological footprint affect biocapacity? Evidence from the experiences of G20 countries Nat. Resour. Model. (IF 1.6) Pub Date : 2023-02-15 Yongchang Shen, Shujing Yue
The use of the difference between ecological footprint and biocapacity to evaluate the sustainable development of a country may be biased. Therefore, we discuss the nonlinear impact of the ecological footprint on biocapacity from the perspective of the self-regulation capacity of the ecosystem, which provides a new perspective for evaluating the sustainability of a country. Using panel data of the
-
Object-based image analysis (OBIA)-based gully erosion dynamics, sediment loading rate and sediment yield study in Lake Hawassa Sub-basin, Ethiopia Nat. Resour. Model. (IF 1.6) Pub Date : 2023-02-05 Agegnehu M. Gebre, Mulugeta D. Belete, Moltot Z. Belayneh
Gully erosion is a serious environmental issue in Lake Hawassa Sub-basin. It has affected a large portion of the catchment, and a large amount of sediment has been transported into the lake. This condition needs to be addressed. However, before conservation techniques are implemented, the gully systems should be mapped, their extent and changes over time need to be measured, and their capacity to produce
-
Greed is good: Heuristic adaptations for resilience in renewable resource management Nat. Resour. Model. (IF 1.6) Pub Date : 2022-12-29 Yuanming Ni, Leif K. Sandal, Sturla F. Kvamsdal
Decision problems may be subject to objectives or constraints that make the formal model intractable. We propose an adaptive and pragmatic approach to address such nonstandard objectives or constraints, where these are first circumvented for feasibility, then accounted for through heuristics. One example is managing risk and resilience in a natural system facing uncertainty. Our procedure is exemplified
-
Assessment model of rainwater resource utilization and influencing factors in arid and semiarid areas Nat. Resour. Model. (IF 1.6) Pub Date : 2022-12-22 Xingyuan Zhang, Fawen Li, Ximin Yuan
Arid and semiarid areas generally face problems of natural resource degradation. In this paper, two indicators are proposed to characterize the utilization of rainwater: rainwater resource utilization quantity (RRU, mm) and rainwater resource utilization rate (RRUR, dimensionless ratio). A spatiotemporal assessment model (rainwater utilization assessment [RUA] model) for the RRUR and its influencing
-
Catastrophic or sustainable scenarios might occur when the carrying capacities of a tourism-based socioecological system vary Nat. Resour. Model. (IF 1.6) Pub Date : 2022-12-11 J. G. Villavicencio-Pulido, V. Vázquez-Hipólito, G. J. García-Cruz
In this work, we propose a socioecological model to describe the effects of visiting tourists in biological attractive sites. We model conditioned interactions between the forest resources and the wildlife with the tourists. This allows us to describe the net benefits–costs rates that the species and their habitats receive from the interaction with tourists. We show that when a scenario of sustainable
-
Parameter allocation approach for runoff simulation in an arid catchment using the KINEROS2 hydrological model Nat. Resour. Model. (IF 1.6) Pub Date : 2022-12-05 Diba Ghonchepour, Abdolreza Bahremand, Nicholas Kinar
The KINEROS2 model was utilized for runoff simulation in the Dehgin catchment situated in the Hormozgan province of Iran. A parameter allocation procedure was used in lieu of parameter optimization. After parameter allocation, the model was able to adequately simulate hydrographs associated with high-magnitude peak discharge events with the efficiency values between 0.011–0.83 for Nash–Sutcliffe and
-
Time delays and pollution in an open-access fishery Nat. Resour. Model. (IF 1.6) Pub Date : 2022-11-30 Harald Bergland, Purnedu Mishra, Pål Andreas Pedersen, Arkadi Ponossov, John Wyller
We analyze the impacts of pollution on fishery sector using a dynamical system approach. The proposed model presupposes that the economic development causes emissions that either remediate or accumulate in the oceans. The model possesses a block structure where the solutions of the rate equations for the pollutant and the economic activity act as an input for the biomass and effort equation. We also
-
Spatial and temporal zoning of watershed resilience using a multidimensional composition approach Nat. Resour. Model. (IF 1.6) Pub Date : 2022-11-24 Parisa Farzi, Seyed Hamidreza Sadeghi, Mahmoud Jomehpour
The present initiative study has been planned to develop a conceptual model for watershed resilience for which rare documents have been reported yet, particularly in developing countries where such studies are necessary. In this vein, different ecological, social, economic, and infrastructural and cultural key domains were applied for the modeling processes of watershed resilience for the Shazand Watershed
-
A model of rational equilibrium in quota-regulated multiple-species fisheries Nat. Resour. Model. (IF 1.6) Pub Date : 2022-11-17 Rajesh Singh, Quinn Weninger
This paper derives rational ecological–economic equilibrium outcomes—capital and variable input allocations, harvests, discards, revenue, costs, and stock abundances—in a spatially heterogeneous, multispecies fishery that is regulated with individual fishing quotas (IFQs). The production setting is decentralized; a manager chooses species-specific, seasonal, and spatially nondelineated quotas. Industry
-
Erratum Nat. Resour. Model. (IF 1.6) Pub Date : 2022-11-04
Erratum to “Mesopelagic–epipelagic fish nexus in viability and feasibility of commercial-scale mesopelagic fisheries” Natural Resource Modeling, e12350 by Melina Kourantidou and Di Jin. In the published article, an unintentional error occurred, which resulted in the Data Availability Statement being missed when this article first published online. It should read as:
-
Reserve regulation and multidimensional relative poverty of farmers: Evidence from the Panda Nature Reserves in China Nat. Resour. Model. (IF 1.6) Pub Date : 2022-09-07 Chao Lin, Lan Gao
The accurate evaluation of the relationship between nature reserves and poverty is highly significant for the harmonious coexistence between human and nature. It is widely recognized that the establishment of nature reserves is of great importance to the income poverty of farmers, but less attention has been paid to the impact of different reserves on the multidimensional relative poverty of farmers
-
To tip or not to tip: The Window of Tipping Point Analysis for social-ecological systems Nat. Resour. Model. (IF 1.6) Pub Date : 2022-09-04 Marie-Catherine Riekhof, Lotta Clara Kluger, Renato Salvatteci, Lotta Siebert, Rudi Voss
We introduce six steps to define a “Window of Tipping Point Analysis” which serves as a framework to increase the understanding of processes and tipping points in social-ecological systems. We apply the Window of Tipping Point Analysis to a mathematical model and two case studies (i.e., Baltic Sea and the Humboldt Current Upwelling system), focusing on three aspects. In “to tip or be tipped” we look
-
Understanding the differences between single- and multiobjective optimization for the conservation of multiple species Nat. Resour. Model. (IF 1.6) Pub Date : 2022-09-01 Seong-Hoon Cho, James C. Mingie, Nawon Kang, Gengping Zhu, Sreedhar Upendram
The purpose of this study is to understand how solutions from single- and multiobjective optimization for the conservation of multiple species are different and what impacts these differences. We identify optimal conservation investment allocations maximizing expected species' habitat ranges for multiple pairs of species using two approaches in the central and southern Appalachian region. We find that
-
The structure of optimal solutions for harvesting a renewable resource Nat. Resour. Model. (IF 1.6) Pub Date : 2022-08-24 Thorsten Upmann, Dmitry Gromov
We consider the problem of optimal harvesting of a renewable resource whose dynamics are governed by logistic growth and whose payoff is proportional to the harvest. We consider both the case of a finite and an infinite time horizon and analyse the structure of the optimal solutions and their dependence on the parameters of the model. We show that the optimal policy can only have one of three structures:
-
Polluting resource extraction and climate risk Nat. Resour. Model. (IF 1.6) Pub Date : 2022-08-18 Israa Hashem, Walid Marrouch
Using a fossil fuel extraction model that treats the atmosphere as a depletable resource, we study the optimal price of carbon in the presence of endogenous uncertainty around a climatic regime shift. We find that the optimal carbon tax should account an uncertainty-adjusted cost term associated with the environment's scarcity. This term is shown to be sensitive to the natural sequestration rate of
-
Modeling and propagating inventory-based sampling uncertainty in the large-scale forest demographic model “MARGOT” Nat. Resour. Model. (IF 1.6) Pub Date : 2022-08-08 Timothée Audinot, Holger Wernsdörfer, Gilles Le Moguédec, Jean-Daniel Bontemps
Models based on national forest inventory (NFI) data intend to project forests under management and policy scenarios. This study aimed at quantifying the influence of NFI sampling uncertainty on parameters and simulations of the demographic model MARGOT. Parameter variance–covariance structure was estimated from bootstrap sampling of NFI field plots. Parameter variances and distributions were further
-
Historical and future dynamics of land use land cover and its drivers in Ajora-Woybo watershed, Omo-Gibe basin, Ethiopia Nat. Resour. Model. (IF 1.6) Pub Date : 2022-08-03 Meseret B. Toma, Mulugeta D. Belete, Mihret D. Ulsido
Land use land cover (LULC) dynamics have long been recognized as a significant driver of natural resource change. As a result, understanding the spatial and temporal variation of LULC in the watershed is essential for effective natural resource management and long-term development. This study attempts to analyze the dynamics and change drivers from 1990 to 2020 and predict the situation for 2035 and
-
Mesopelagic–epipelagic fish nexus in viability and feasibility of commercial-scale mesopelagic fisheries Nat. Resour. Model. (IF 1.6) Pub Date : 2022-07-20 Melina Kourantidou, Di Jin
While considerable scientific uncertainties persist for mesopelagic ecosystems, the fishing industry has developed a great interest in commercial exploitation with improved technologies as part of their search for new sources of feed for fishmeal and fish oil for aquaculture, which will intensify with the planet's growing population. The multiple uncertainties surrounding the ecosystem structure and
-
Simulation of the improving effect of graphene visible-light photocatalysis using the MIKE11 model of an urban landscape river in the Chaohu Lake Basin, China Nat. Resour. Model. (IF 1.6) Pub Date : 2022-06-27 Hongbin Xiong, Tianxin Liu, Haiyun Wang, Chenxiao Feng
We selected the Tanchong River in Hefei as the site to test the efficacy of graphene visible-light photocatalysis (GVLP), a new water treatment technology to improve water quality in black-odorous rivers in urban landscapes. A model coupling the hydrodynamic force and water quality of the Tanchong River was constructed using the MIKE11 model. The numerical simulation method was used to model the concentrations
-
Optimal contract arrangements for conservation on working forests Nat. Resour. Model. (IF 1.6) Pub Date : 2022-06-27 Changyou Sun, Bin Mei, Yanshu Li
Forestland can be managed for timber and environmental goods simultaneously. A conservation contract allows a government agency to pay a landowner for the portion of property rights encumbered in the production of environmental goods. In this study, a theoretical model is developed to examine optimal contract provisions for carbon sequestration on working forests under a budget constraint for the agency
-
A stylized model of stochastic ecosystems with alternative stable states Nat. Resour. Model. (IF 1.6) Pub Date : 2022-05-24 Michael Stecher, Stefan Baumgärtner
We construct a generic ecosystem model that features the basic mechanisms of alternative stable states as well as two different stochastic influences. In particular, we use a mean-reverting jump-diffusion process to model the evolution of the ecosystem state over time. We review key concepts of multistability theory and the simple heuristics commonly employed to illustrate them. We then provide mathematical
-
Objective evaluation of the Global Environmental Multiscale Model (GEM) with precipitation and temperature for Iran Nat. Resour. Model. (IF 1.6) Pub Date : 2022-05-12 Mohammad Mohammadlou, Abdolreza Bahremand, Daniel Princz, Nicholas Kinar, Amin Haghnegahdar, Saman Razavi
The Global Environmental Multiscale Model (GEM) is currently in operational use for data assimilation and forecasting at 25–15 km scales; regional 10 km scales over North America; and 2.5 km scales over Canada. To evaluate the GEM model for forecasting applications in Iran, global daily temperature and precipitation outputs of GEM at a 25 km scale were compared to data sets from hydrometeorological
-
Multi-month time-lag effects of regional vegetation responses to precipitation in arid and semi-arid grassland: A case study of Hulunbuir, Inner Mongolia Nat. Resour. Model. (IF 1.6) Pub Date : 2022-03-21 Taosuo Wu, Hongmei Bai, Feng Feng, Qian Lin
The 16 years of normalized difference vegetation index (NDVI) and precipitation data are used to analyze the time-lag effects of the growing-season NDVI response to precipitation at regional scales. This study focuses on the arid and semi-arid Hulunbuir grassland dominated by perennials in northeast China. The multi-month time-lag effects are examined using simple statistical approaches, which can
-
Joint management of marine mammals and a fish species: The case of cod and grey seals in the Nordic-Baltic Sea countries Nat. Resour. Model. (IF 1.6) Pub Date : 2022-02-28 Johan Blomquist, Frank Jensen, Staffan Waldo, Ola Flaaten, Maija K. Holma
In this paper, we present a simple theoretical, steady-state equilibrium, predator-prey model for the joint management of marine mammals and a fish species. As an empirical case, we choose cod and grey seals in the Nordic-Baltic Sea countries, and several benefits and costs related to the latter are considered. We show that the optimal grey seal population is much lower than the actual population,
-
Strong Allee effect and basins of attraction in a discrete-time zoonotic infectious disease model Nat. Resour. Model. (IF 1.6) Pub Date : 2022-01-22 Abdul-Aziz Yakubu, Najat Ziyadi
Motivated by the Feline immunodeficiency virus, the virus that causes AIDS in cat populations, we use discrete-time infectious disease models with demographic strong Allee effect to examine the impact of the fatal susceptible-infected (SI) infections on two different types of growth functions: Holling type III or modified Beverton–Holt per-capita growth function (compensatory density dependence), and
-
Sustainable agriculture supply chain network design considering water-energy-food nexus using queuing system: A hybrid robust possibilistic programming Nat. Resour. Model. (IF 1.6) Pub Date : 2021-12-22 Komeyl Baghizadeh, Naoufel Cheikhrouhou, Kannan Govindan, Mahboubeh Ziyarati
Due to the nature of the agricultural and food industry, the management of production, storage, transportation, waste disposal and environmental effects of their production, are of great importance. To deal with the sustainability issues linked to their supply chains, we propose in this study a mathematical model to design a sustainable supply chain of highly perishable agricultural product (strawberry)
-
Modeling vigilance in mixed-species groups Nat. Resour. Model. (IF 1.6) Pub Date : 2022-01-24 Frank van Langevelde, Lennart Suselbeek, Joel S. Brown
Mixed-species groups are usually explained by foraging advantages and reduced predation risk for at least one of the participating species. Given that animals trade-off foraging and vigilance, the optimal level of vigilance of individuals in mixed-species groups depends partly on the vigilance levels of both conspecifics and heterospecifics. However, the benefits and costs of being part of a mixed-species
-
Mathematical modeling on conservation of depleted forestry resources Nat. Resour. Model. (IF 1.6) Pub Date : 2022-01-14 Masitawal Demsie Goshu, Mehari Fentahun Endalew
In this article, a nonlinear mathematical model is constructed to investigate the conservation of depleted forest resources due to the increase of population and associated pressures. Fundamental equations governing the dynamics of the system are defined by the set of highly nonlinear ordinary differential equations and solved numerically. The model is analyzed by using the nature of stability analysis
-
A soft systems methodology and interpretive structural modeling framework for Green infrastructure development to control runoff in Tehran metropolis Nat. Resour. Model. (IF 1.6) Pub Date : 2022-01-14 Iman Saeedi, Ali Reza Mikaeili Tabrizi, Abdolreza Bahremand, Abdolrassoul Salmanmahiny
Green Infrastructure Development (GID) is a well-known method for dealing with runoff control and mitigating the urbanization effects on hydrological cycles. Other than hydrological factors, GID is obviously intertwined with many socioeconomic, environmental, and aesthetic considerations, constraints, and drivers. Human perceptions are valuable resources to distinguish these considerations and can
-
Potential economic impacts of groundwater conservation in the Mississippi River Alluvial Aquifer (MRAA), Louisiana, USA Nat. Resour. Model. (IF 1.6) Pub Date : 2021-09-21 Dependra Bhatta, Krishna P. Paudel, Bin Li
Overextraction of groundwater reduces groundwater height, increases the energy cost, and may threaten an aquifer's economic life. Water-intensive crops, corn, and soybean, dominate the agricultural land in the Mississippi River Alluvial Aquifer (MRAA) region of the United States, thus stressing this confined aquifer. Groundwater conservation policy or the adoption of efficient irrigation technology
-
Fish catch management strategies: Evaluating the interplay between body size and global warming Nat. Resour. Model. (IF 1.6) Pub Date : 2021-09-21 William Campillay-Llanos, Victor Saldaña-Núñez, Fernado Córdova-Lepe, Felipe N. Moreno-Gómez
Environmental temperature and body size influence the life cycle of the species, with consequences for population size. In addition, it has been reported that increased temperature can lead to a decrease in body size. In the context of a resource-stock, whose abundance is diminished by the action of an endothermic predator and also by small-scale fishing activity, we analysed a Schaefer-type fishery
-
Current forecast of HIV/AIDS using Bayesian inference Nat. Resour. Model. (IF 1.6) Pub Date : 2021-09-28 Kernel Prieto, Jhoana P. Romero–Leiton
In this study, we address the problem of fitting a mathematical model to the human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) data. We present a quantitative analysis of the formulated mathematical model by using Bayesian inference. The mathematical model consists of a suitable simple system of ordinary differential equations. We perform a local and global sensitivity analysis
-
On the set of robust sustainable thresholds Nat. Resour. Model. (IF 1.6) Pub Date : 2021-10-06 Pedro Gajardo, Cristopher Hermosilla, Athena Picarelli
In natural resource management, or more generally in the study of sustainability issues, the objective often consists of maintaining the state of a given system within a desirable configuration, typically established in terms of standards or thresholds. For instance, in fisheries management, the procedure for designing policies may include maintaining the spawning stock biomass over a precautionary
-
Modeling and control of Mongolian forest utilization: Impact of illegal logging Nat. Resour. Model. (IF 1.6) Pub Date : 2021-10-20 Battur Gompil, Batchuluun Tseveen, Janerke Almasbek
Depletion and deforestation of forest resources are mainly due to industrialization, population, pollution, forest fire, improper commercial logging, and illegal logging in the world. In this paper, we consider two dynamic models. A mathematical Model 1 is proposed considering the forest biomass density , the density of wood-based industries with unknown parameter . Model 2 is an extension of Model
-
Fisheries management and tipping points: Seeking optimal management of Eastern Baltic cod under conditions of uncertainty about the future productivity regime Nat. Resour. Model. (IF 1.6) Pub Date : 2021-10-14 Rudi Voss, Martin Quaas
Historical patterns of the Eastern Baltic cod stock recruitment show a shift from a regime with high reproductive potential before the early 1980s to a regime with low reproductive potential since then. This shift can be attributed to increasingly unfavorable environmental conditions for cod reproduction at that time: critical salinity and oxygen levels, needed for successful egg and larval development
-
Correlation and synergy analysis of urban economy–energy–environment system—A case study of Beijing Nat. Resour. Model. (IF 1.6) Pub Date : 2021-08-27 Xianzhong Mu, Li Kong, Chuang Tu, Jian Chen, Guangwen Hu
The coordination of economy, energy, and environment plays an important role for cities seeking green transformation and sustainable development. However, poor information and equivocal data are what often face the related analysis. In this paper, the correlation and synergy of the urban economy–energy–environment system are analyzed. First, the Grey relational analysis and entropy weight method are
-
Paths to computational fluency for natural resource educators, researchers, and managers Nat. Resour. Model. (IF 1.6) Pub Date : 2021-06-29 Richard A. Erickson, Jessica L. Burnett, Mark T. Wiltermuth, Edward A. Bulliner, Leslie Hsu
Natural resource management and supporting research teams need computational fluency in the data and model-rich 21st century. Computational fluency describes the ability of practitioners and scientists to conduct research and represent natural systems within the computer's environment. Advancement in information synthesis for natural resource management requires more sophisticated computational approaches