| 阿里高原土地沙漠化发展演变与驱动因素分析 |
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| 引用本文： | 李森,杨萍,王跃,张春来. 阿里高原土地沙漠化发展演变与驱动因素分析[J]. 中国沙漠, 2005, 25(6): 838-844 |
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| 作者姓名： | 李森 杨萍 王跃 张春来 |
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| 作者单位： | 1. 佛山大学资源与环境科学研究所, 广东佛山 528000;2. 中国科学院寒区旱区环境与工程研究所, 甘肃兰州 730000;3. 苏州科学技术学院地理系, 江苏苏州 215001;4. 北京师范大学中国沙漠研究中心, 北京 100875 |
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| 基金项目： | 国家自然科学基金项目(40271012)，西藏自治区重点科技项目(200101046)资助 |
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| 摘 要： | 阿里高原沙漠化土地具有高寒干旱景观特色和脆弱的生态学属性。运用遥感、野外调查与GIS等方法监测近10a高原沙漠化的发展演变,沙漠化面积减少219.58km2,平均升级率为-0.36%,动态度为-0.052%。近40a来,阿里高原沙漠化的发展演变是由气候暖干化、人为不合理的经济活动以及鼠类活动等驱动因素综合作用的结果,人为活动在其中具有更大的效力与作用。高原沙漠化正在向自然沙漠化过程+人为沙漠化过程发展。防治土地沙漠化是本区一项长期的战略任务,其基本策略是全面保护、综合治理、适度开发、协调发展。
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| 关 键 词： | 阿里高原 沙漠化土地 发展演变 驱动因素 |
| 文章编号： | 1000-694X（2005）06-0838-07 |
| 收稿时间： | 2005-01-20 |
| 修稿时间： | 2005-03-15 |
Preliminary Analysis on Development and Driving Factors of Sandy Desertification on Ali Plateau |
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| LI Sen,YANG Ping,WANG Yue,ZHANG Chun-lai. Preliminary Analysis on Development and Driving Factors of Sandy Desertification on Ali Plateau[J]. ournal of Desert Research, 2005, 25(6): 838-844 |
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| Authors: | LI Sen YANG Ping WANG Yue ZHANG Chun-lai |
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| Affiliation: | 1. Resources and Environmental Science Research Institute, Foshan University, Foshan 528000, China;2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;3. Department of Geography, Suzhou Technology College, Suzhou, 215000, Jiangsu, China;4. Center of Desert Research, Beijing Normal University, Beijing 100875, China |
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| Abstract: | The desertification land of the Ali plateau has the high-cold and arid landscape and the fragile bionomics property.Based on some study methods such as remote sensing,field survey and GIS,the desertification dynamic changes during the past 10 years in Ali Plateau were researched.Our results show that the area of the desertification lands has decreased by 219.58 km~(2) in Ali Plateau over the past 10 years.The upgrading ratio of desertification is 0.36% and the dynamic degree is -0.52%.The overall temporal and spatial variation characteristics of the sandy desertification in Ali plateau are that: The area is increasing and the grade is upgrading in the west and south,but it is decreasing and degrading in the middle and east.The evolvement of the sandy desertification results from the interactions and interferences of the unreasonable economic activities(which play a more important role),and the other driving forces such as the warm and dry tendency in regional climate,the unreasonable economic activities,etc.The desertification in Ali plateau is developing through the natural and artificial desertification processes.The desertification prevention is the long-term strategic task in the Ali plateau,and the basic strategies of desertification prevention were put forward.Comprehensive protection lands from excessive use,synthetically prevention and treatment of desertification lands,and reasonable exploitation can effectively reverse the desertification,which will produce harmonious developments in the plateau. |
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| Keywords: | Ali Plateau desertification land development and evolvement driving factor |
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