Climate and landuse change impact the hydrologic cycle resulting in changes in catchment water yield and streamflow characteristics. Understanding the combined effect of climate and landuse change on water is essential for developing sustainable water resources plans. Most studies consider only the isolated effect of climate alone or landuse alone, and this could skew the picture of hydrologic responses by attributing too little or too much importance to climate or landuse change. Quantifying the combined impact of climate and landuse change is a significant challenge as water yield is the convolution of both these factors. This paper briefly reviews key literature on quantifying climate and landuse change impacts on water yield with an emphasis on the framework developed over the last decade. We discuss the assumptions embedded in the framework and the potential for predicting climate and landuse impact on future water yield.

气候和土地利用变化影响水文循环，导致流域水产量和水流特征发生变化。了解气候和土地利用变化对水的综合影响对于制定可持续的水资源计划至关重要。大多数研究仅考虑单独的气候或土地利用的孤立影响，这可能由于对气候或土地利用变化的重视程度过低或过高而使水文响应的情况发生了变化。量化气候和土地利用变化的综合影响是一项重大挑战，因为水产量是这两个因素的综合。本文简要回顾了有关量化气候和土地利用变化对水产量的影响的主要文献，并着重介绍了过去十年开发的框架。