Climate change triggers changes in temperature, precipitation, evapotranspiration, etc. and has a significant impact on water resources in many regions. Considering the increasing scarcity of water as a result of climate change, conservation of water and groundwater recharge have become crucial factors for water resources planning and management. In this paper, an attempt is made to study the detailed hydrological behaviour of a treated watershed using physically based distributed hydrological modelling system MIKE SHE to assess the impact of conservation measures on watershed hydrology considering future climate change. Three hypothetical management scenarios are simulated for the period 2010–2040. RegCM4 regional climate model is used in the study for RCP 4.5 and RCP 8.5 scenarios. Detailed hydrological water balance is extracted for individual years from 1979 to 2009 to compare relevant components. The evaluation for base period shows 10.06% reduction in surface runoff and 11.33% enhancement in groundwater recharge. Further simulation with RCP 4.5 and RCP 8.5 scenarios show notable reduction in surface runoff and increase in groundwater recharge. The structures in the micro-watershed influence the surface runoff and increase infiltration into the soil, resulting in higher groundwater recharge. MIKE SHE simulations for various structures management scenarios establish the role of conservation measures in reducing surface runoff and enhancing groundwater recharge under substantial effect of climate change. The results will assist in decision-making on watershed development plans in quantitative terms, including planning for water conservation measures in the face of climate change.

气候变化引发温度，降水，蒸散量等变化，并在许多地区对水资源产生重大影响。考虑到由于气候变化而导致的水资源短缺问题，节约用水和补充地下水已成为水资源规划和管理的关键因素。本文尝试使用基于物理的分布式水文模型系统MIKE SHE研究经过处理的流域的详细水文行为，以评估保护措施对考虑未来气候变化的流域水文学的影响。模拟了2010-2040年期间的三种假设管理方案。在RCP 4.5和RCP 8.5方案的研究中使用RegCM4区域气候模型。提取了1979年至2009年各个年份的详细水文水平衡，以比较相关组成部分。基期评估表明，地表径流减少了10.06％，地下水补给增加了11.33％。使用RCP 4.5和RCP 8.5方案进行的进一步仿真显示，地表径流显着减少，地下水补给量增加。微流域的结构影响地表径流并增加对土壤的渗透，从而导致较高的地下水补给。针对各种结构管理方案的MIKE SHE模拟确立了保护措施在气候变化的重大影响下在减少地表径流和增强地下水补给中的作用。结果将有助于在流域发展计划方面进行定量决策，