Sal (Shorea robusta) is an economically and ecologically important tree species found in Nepal. Since 2003, Nepal's government has been managing the Sal forest under the Scientific Forest Management (SciFM) scheme. Due to newly implemented approaches, the information regarding the Sal forest condition under regeneration felling and thinning is low. This study aimed to understand the regeneration status after regeneration felling and compare crop stands between thinned and unthinned plots. We selected three years of harvested, thinned, and unthinned blocks in the Tilaurakot collaborative forest. Vegetation sampling was carried out in 63 concentric circular plots. The results show that the number of seedlings and saplings in the harvested blocks was 14,000 and 3368 per hectare, respectively. The growing stock and basal area per hectare in the thinned blocks were lower than in the unthinned blocks. The numbers of trees and poles per hectare were lower in the thinned block than in the unthinned block. Sal's importance valve index (IVI) was higher than other species in all three block types. The study suggests that the regeneration condition was better after the canopy's opening, and thinning promotes the growth of trees and undergrowth vegetation.

萨尔 ( Shorea robusta )) 是在尼泊尔发现的具有重要经济和生态意义的树种。自 2003 年以来，尼泊尔政府一直根据科学森林管理 (SciFM) 计划管理萨尔森林。由于新实施的方法，关于再生砍伐和间伐下萨尔森林状况的信息很少。本研究旨在了解再生采伐后的再生状态，并比较间伐和未间伐地块之间的作物林分。我们在 Tilaurakot 协作林中选择了三年收获、稀疏和未稀疏的块。植被取样在 63 个同心圆样地中进行。结果表明，收获地块中的幼苗和树苗数量分别为每公顷14000株和3368株。间伐地块的立木蓄积量和每公顷底面积低于未间伐地块。间伐区每公顷的树木和电线杆数量低于未间伐区。Sal的重要性瓣指数（IVI）在所有三种块类型中均高于其他物种。研究表明，树冠张开后再生条件较好，间伐促进了树木和林下植被的生长。