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2000-2015年中国干旱半干旱地区沙漠化进程驱动力研究
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  • 英文篇名:Study on the Driving Factors in Desertification Process in Arid and Semi-arid Region of China from 2000 to 2015
  • 作者:王晓峰 ; 张明明 ; 尹礼唱 ; 黄鹏程 ; 勒斯木初 ; 周潮伟
  • 英文作者:WANG Xiaofeng;ZHANG Mingming;YIN Lichang;HUANG Pengcheng;LESI Muchu;ZHOU Chaowei;The School of Earth Science and Resources, Chang'an University;Shaanxi Provincial Key Laboratory of land engineering;The Faculty of Geomatics, Lanzhou Jiaotong University;
  • 关键词:中国干旱半干旱地区 ; 沙漠化进程 ; 驱动力 ; 地理探测器
  • 英文关键词:arid and semi-arid region of China;;desertification process;;driving factors;;geographical detectors
  • 中文刊名:生态环境学报
  • 英文刊名:Ecology and Environmental Sciences
  • 机构:长安大学地球科学与资源学院;陕西省土地工程重点实验室;兰州交通大学测绘与地理信息学院;
  • 出版日期:2019-05-18
  • 出版单位:生态环境学报
  • 年:2019
  • 期:05
  • 基金:国家重点研发计划项目(2018YFC0507300);; 中国科学院战略性先导科技专项(A类)(XDA2002040201);中国科学院科技服务网络计划项目(KFJ-STS-ZDTP-036);; 陕西省自然科学基础研究计划项目(2018JM4016);; 国家留学基金委青年骨干教师出国研修项目(201806565025)
  • 语种:中文;
  • 页:96-105
  • 页数:10
  • CN:44-1661/X
  • ISSN:1674-5906
  • 分类号:X171;P942
摘要
中国干旱半干旱地区是连接中国与丝绸之路经济带沿线国家的重要纽带,严峻的土地沙漠化形势制约其可持续发展。研究沙漠化进程及驱动机制对防治沙漠化具有重要意义。基于2000年和2015年两期中国北方沙漠化土地、气象数据、人口、GDP、DEM、土壤类型数据,运用地理探测器方法研究了中国干旱半干旱地区沙漠化进程驱动力。结果表明,(1)2000-2015年,沙漠化面积减少了97 700 km~2,其中轻度、极重度沙漠化面积分别减少了62 000 km~2和130 600 km~2,而中度和重度沙漠化面积分别增加了21 500 km~2和73 400 km~2。整体上,沙漠化逆转面积为386 300 km~2,其中明显逆转239 000 km~2,不明显逆转147 300 km~2,而沙漠化发展面积为421 800 km~2,其中明显发展142 200 km~2,不明显发展279 600 km~2。(2)2000-2015年,沙漠化进程是自然和人为因素共同作用的结果,但以自然因素为主要驱动力,其中沙漠化对气候因素响应尤为敏感,而降水量对沙漠化进程影响最大,平均相对湿度的影响次之。(3)气候因素间的交互作用对沙漠化进程影响显著,而平均相对湿度、降水量、日照时数与其他气候因素的交互作用更明显。
        The arid and semi-arid region of China is an important bond connecting China and the countries along the Silk Road economic belt, but severe situation of land desertification restricts the sustainable development in the region. It is of great significance to study the process and driving mechanism of desertification in order to prevent and control desertification. On the basis of the desertification in the northern part of China in 2000 and 2015, meteorological data, population, GDP, DEM and soil types, the paper studied on the driving factors in desertification process in arid and semi-arid region of China by geographical detectors method.Results were as follows:(1) From 2000 to 2015, desertification decreased by 97 700 km~2. Slight desertification and extremely severe desertification decreased by 62 000 km~2 and 130 600 km~2, respectively. Besides, moderate desertification and severe desertification increased by 21 500 km~2 and 73 400 km~2, respectively. Generally, the area of desertification reversal was 386 300 km~2, and the area where desertification obviously reversed was 239 000 km~2, and the area where desertification slightly reversed was 147 300 km~2. The area of desertification development was 421 800 km~2, and the area where desertification evidently developed was 142 200 km~2, and the area where desertification slightly developed was 279 600 km~2.(2) From 2000 to 2015, desertification process was a comprehensive result that was pushed by physical factors and human activity, but main driving forces were physical factors.Desertification was particularly sensitive to climatic factors, and precipitation had a greatest impact on desertification processes, and mean relative humidity merely had a less effect than precipitation. And(3) the interaction among climatic factors had an evident effect on the desertification process, and the interaction between mean relative humidity, precipitation, sunshine hours and other climatic factors was greater obvious.
引文
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