The disturbances caused to forests by human interferences have a significant impact on forest hydrology and the nutrient cycle. The stemflow, throughfall, interception loss, and runoff are the major components of the forest hydrology and play an active role in nutrients cycling. A study was therefore carried out in the Sal forests under various disturbance gradients in Himalayan foothills to quantify the rainfall partitioned components i.e. stemflow, throughfall, and interception loss; runoff; and chemical elements in rainfall partitioned components. During the study period, a total of 37 rainfall events were recorded for the rainfall partitioning study. Results showed that the significantly highest average stemflow was observed in the undisturbed Sal forest (3.7 ± 0.2%) and lowest in the disturbed Sal forest (1.7 ± 0.1%). A significantly highest average throughfall was observed in the disturbed Sal forest (65.2 ± 1.7%) and lowest in the undisturbed forest (57.8 ± 1.8%). Although the highest average interception loss was observed in the undisturbed forest (38.5 ± 1.8%) and lowest in the disturbed Sal forest type (33.2 ± 1.8%), it was not significant (p = 0.05). Significantly highest average runoff (22.2 ± 1.7%) was observed in the disturbed Sal forest while the lowest runoff (8.5 ± 1.8%) was observed in the undisturbed Sal forest type. It was also observed that nutrient enrichment i.e. N, P, and K to the soil through stemflow and throughfall was 18.6 times, 23.1 times, and 10.8 times more as compared to incident rainfall. From the statistical analysis, it was observed that average canopy spread, ground biomass, and average crown projection area were the most important parameters of the Sal forests which affected the proportion of rainfall partitioned components and runoff.

人为干扰对森林造成的干扰对森林水文和养分循环产生了重大影响。干流、径流、截流和径流是森林水文的主要组成部分，在养分循环中发挥着积极作用。因此，在喜马拉雅山麓不同扰动梯度下的 Sal 森林中进行了一项研究，以量化降雨划分的成分，即干流、穿流和截流损失；径流; 和降雨分区成分中的化学元素。在研究期间，降雨分区研究共记录了 37 次降雨事件。结果表明，在未受干扰的 Sal 森林中观察到显着最高的平均干流（3.7 ± 0.2%），在受干扰的 Sal 森林中最低（1.7 ± 0.1%）。在受干扰的萨尔森林中观察到显着最高的平均通过量（65.2±1.7%），在未受干扰的森林中最低（57.8±1.8%）。虽然在未受干扰的森林中观察到最高的平均截获损失（38.5±1.8%），在受干扰的萨尔森林类型中最低（33.2±1.8%），但并不显着（p = 0.05)。在受干扰的 Sal 森林中观察到显着最高的平均径流 (22.2 ± 1.7%)，而在未受干扰的 Sal 森林类型中观察到最低的径流 (8.5 ± 1.8%)。还观察到，与事件降雨相比，通过茎流和直流向土壤中的养分富集，即 N、P 和 K 分别是 18.6 倍、23.1 倍和 10.8 倍。从统计分析中可以看出，平均冠层分布、地面生物量和平均树冠投影面积是影响降雨分区成分和径流比例的萨尔森林最重要的参数。