Human Impacts on Severe Drought in Southwest Region of China

MU Xing-min; WANG Fei; FENG Hao; ZHANG Rui; LU Xiang-hui; GAO Peng

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Human Impacts on Severe Drought in Southwest Region of China

- Human Impacts on Severe Drought in Southwest Region of China
- Bulletin of Soiland Water Conservation Vol. 29, Issue 2, Pages: 1-4(2010)
- 作者机构：
  
  1. 西北农林科技大学, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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MU Xing-min, WANG Fei, FENG Hao, et al. Human Impacts on Severe Drought in Southwest Region of China[J]. Bulletin of Soiland Water Conservation, 2010, 29(2): 1-4.
DOI：

MU Xing-min, WANG Fei, FENG Hao, et al. Human Impacts on Severe Drought in Southwest Region of China[J]. Bulletin of Soiland Water Conservation, 2010, 29(2): 1-4. DOI：

摘要

2009年秋季以来，我国西南地区出现了历史罕见的严重旱灾。在综合分析这次成灾自然因素的基础上，着重探讨了以生态环境变化为核心的土地利用、水土保持、矿产开发和水利水电设施等人类活动对西南地区旱灾的影响。分析认为，造成这次特大旱灾的直接原因是长达连续7个月少雨的气象干旱，但水源涵养功能较差引起的土壤和浅层地下水调控能力丧失，矿产开发破坏地质水文环境，水利设施功能减退等人类活动也在很大程度上导致了灾情加剧。只有综合考虑西南地区的特殊生态水文与地质条件，通过流域综合治理，才可以有效应对气候变化对该区水资源和区域发展造成的不良影响。

Abstract

The severe drought disaster began in Autumn 2009 has strong impacts on agriculture and life in the southwest region of China. Based on the analysis of natural causes

the human activities focusing on change of eco-environmrnt

such as land use change

soil and water conservation

mining

and water resource engineering

are discussed to show the possible impacts and their approaches. The basic natural cause of the terrible drought disaster is the poor weather condition with very little precipitation in 7 months from September 2009 to March 2010. Adjusting capacity loss of soil water supply induced by deforestation

cash crop planting with higher water consumption

water system destroy induced by large-scale mining

and capacity loss of water resource engineering are the main causes that make the disaster happen and become worse. Only when considering the special local conditions and the process of eco-hydrological system in the region and practicing integrated water system management

we can prevent and reduce the negative impacts of climate change for the regional sustainable development.

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