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Influence of climate change and human activity on water resources in arid region of Northwest China:An overview

机译:气候变化和人类活动对西北干旱地区水资源的影响:概述

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摘要

This study reviews the latest progress in research on climate change and water resources in the arid region of Northwest China, analyzes the cause of water resource changes within the region from the perspective of climate change and human activities, and summarizes future likely changes in water resources and associated adaptation strategies. The research shows that the climate in the region has experienced warming and wetting with the most significant warming in winter and the highest increase in summer precipitation since 1961. Areas with the most significant warming trends include the Qaidam Basin, the Yili River Valley, and Tacheng. Spatially, the increasing trend in precipitation becomes increasingly significant from the southeast to the northwest, and northern Xinjiang experienced the highest increase. Studies have shown a decrease in headwater of Shiyang River because runoff is mainly based on precipitation which shows a decrease trend. But an increase in western rivers was observed such as Tarim River and Shule River as well as Heihe River due to rapid glacier shrinkage and snowmelt as well as precipitation increase in mountain area. Meanwhile unreasonable human activities resulted in decrease of runoff in the middle and lower reaches of Haihe River, Shiyang River and Kaidu River. Finally, recommendations for future studies are suggested that include characteristics of changes in extreme weather events and their impacts on water resources, projections of future climate and water resource changes, climate change attribution, the selection of adaptation strategies relating to climate change and social economic activities, and use of scientific methods to quantitatively determine water resource allocation.
机译:这项研究回顾了西北干旱地区气候变化和水资源研究的最新进展,从气候变化和人类活动的角度分析了该地区水资源变化的原因,并总结了未来水资源的可能变化以及相关的适应策略。研究表明,该地区的气候经历了变暖和湿润,自1961年以来,冬季变暖最为明显,夏季降水增幅最大。暖化趋势最明显的地区包括柴达木盆地,伊犁河谷和塔城。从空间上看,降水量的增加趋势从东南到西北变得越来越明显,而新疆北部的增加量最大。研究表明,石羊河源头有所减少,这是因为径流主要基于降水,而降水量呈下降趋势。但是,由于冰川的迅速萎缩和融雪以及山区降水的增加,塔里木河,疏勒河和黑河等西部河流水量有所增加。同时,不合理的人类活动导致海河,石羊河和开渡河中下游径流量减少。最后,建议对未来的研究提出建议,包括极端天气事件的变化特征及其对水资源的影响,未来气候和水资源变化的预测,气候变化的归因,与气候变化和社会经济活动有关的适应战略的选择,并使用科学方法定量确定水资源分配。

著录项

  • 来源
    《气候变化研究进展(英文版)》 |2017年第4期|268-278|共11页
  • 作者

    WANG Yu-Jie; QIN Da-He;

  • 作者单位

    School of Atmospheric Sciences, Nanjing University, Nanjing 210023, China;

    Northwest Regional Climate Center, Lanzhou 730020, China;

    China Meteorological Administration, Beijing 100081, China;

  • 收录信息 中国科学引文数据库(CSCD);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-19 03:58:03
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