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首页> 外文期刊>Journal of water and climate change >Assessing the impacts of changing climate and human activities on streamflow in the Hotan River, China
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Assessing the impacts of changing climate and human activities on streamflow in the Hotan River, China

机译：评估气候变化和人类活动对和田河水流的影响

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摘要

Climate change and intensified human activities are regarded as the two driving factors for most river systems having lost their connection with the Tarim River. The Hotan River is the second largest headstream of the Tarim River; therefore, it is important to determine the causes of its reduction in streamflow supply. Based on an analysis of changes in hydro-meteorological regime and the effects of direct human activities on streamflow, their contributions to the decrease in streamflow in different periods (natural period, 1964-1988; transition period, 1989-2002; post-transition period, 2003-2012) from the Hotan River to the Tarim River were quantified based on a double-mass curve of inflow and outflow in the Hotan River Basin. The results indicate that climatic changes reduced streamflow during the transition period yet increased streamflow during the post-transition period. Human activities reduced output by 73% in the transition period and by 127% in the post-transition period, which was significantly stronger than the contribution from the climate. Thus, human activities appear to be the main driving factor for the drop in streamflow from the Hotan River into the Tarim River. These results can be used as a reference for water resource planning and management.
机译：气候变化和人类活动的加剧被认为是大多数河流系统与塔里木河失去联系的两个驱动因素。和田河是塔里木河的第二大上游。因此，重要的是确定其流量减少的原因。基于对水文气象体制变化和人类直接活动对河流流量的影响的分析，分析了它们在不同时期（自然时期，1964-1988；过渡时期，1989-2002；过渡时期）对河流流量减少的贡献（2003-2012），从和田河到塔里木河的流量基于和田河流域出入水流量的双重质量曲线进行量化。结果表明，气候变化在过渡期减少了流量，但在过渡后增加了流量。在过渡时期，人类活动使产出减少了73％，在过渡时期后减少了127％，这大大超过了气候的贡献。因此，人类活动似乎是从和田河流入塔里木河的流量下降的主要驱动因素。这些结果可作为水资源规划和管理的参考。

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