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  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
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中国地理学会沙漠分会2012年学术研讨会论文选

1976—2007年青海省刚察县土地沙漠化驱动力分析

  • 田丽慧1 ,
  • 张登山1 ,
  • 2 ,
  • 胡梦珺3 ,
  • 鲁瑞洁1
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  • 1.北京师范大学 环境演变与自然灾害教育部重点实验室, 北京 100875;
    2.青海省农林科学院, 青海 西宁 810016; 3.西北师范大学 地理与环境科学学院, 甘肃 兰州 730070

收稿日期: 2012-06-05

  修回日期: 2012-07-11

  网络出版日期: 2012-07-11

Driving Forces of Land Aeolian Desertification in Gangcha County of Qinghai Province, China, during 1976-2007

  • TIAN Li-hui1 ,
  • ZHANG Deng-shan1 ,
  • 2 ,
  • HU Meng-jun3 ,
  • LU Rui-jie1
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  • 1.Ministry of Education Key Laboratory of Environmental Change and Natural Disaster, Beijing Normal University, Beijing 100875, China;
    2.Qinghai Academy of Agricultural and Forestry Sciences, Xining 810016, China;
    3.College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China

Received date: 2012-06-05

  Revised date: 2012-07-11

  Online published: 2012-07-11

摘要

土地沙漠化是青海湖沿岸地区最严重的生态环境问题之一。本文选取青海湖北岸的刚察气象站1958—2007年的气象数据和刚察县1976—2007年的社会经济资料,对近30年来刚察县土地沙漠化的驱动力进行主成分分析。结果表明,1976—2007年,刚察县沙漠化土地面积的增加是自然因素和人为因素综合作用的结果,尤以年平均风速和耕地面积变量的贡献率最大。刚察县沙漠化土地的扩张在不同时间段的影响因素不同。1976—1987年,沙漠化面积的扩张是气温逐渐回暖、降水回升的过程中人为因素影响的结果;1987—1995年,沙漠化土地增加了17.28 km2,沙漠化土地的扩张是自然因素和人为因素叠加的结果,以自然因素为主导,人为因素起加剧的效果;1995—2007年,在暖湿、风速降低的气候环境下,沙漠化土地的扩张是人为因素作用的的结果。沙漠化扩张过程是高寒脆弱不稳定的生态系统在气候干湿波动、人类活动与沙漠化土地之间复杂的相互反馈作用下形成的。

本文引用格式

田丽慧1 , 张登山1 , 2 , 胡梦珺3 , 鲁瑞洁1 . 1976—2007年青海省刚察县土地沙漠化驱动力分析[J]. 中国沙漠, 2013 , 33(2) : 493 -500 . DOI: 10.7522/j.issn.1000-694X.2013.00067

Abstract

Aeolian desertification is one of the most severe eco-environmental issues in the area around the Qinghai Lake. By using meteorological data during 1958-2007 collected from Gangcha Meteorological Station on the shore of Qinghai Lake and social-economic data of Gangcha County during 1976-2007, we analyzed the driving forces of aeolian desertification there in recent 30 years through Principal Component Analysis. Results showed that from 1976 to 2007, both natural and human factors contributed to the variation of aeolian desertification area, while contribution rates of annual average wind speed change and arable land change were the primate driving factors of aeolian desertification varied at different stages during 1976-2007: (1) The expansion of aeolian desertification area in 1976-1987 was induced by human activities when temperature and precipitation increased; (2) increase of aeolian desertification area by 17.28 km2 from 1987 to 1995 was caused by the interaction of natural and human factors, in which natural factors played a dominant role while human factors intensified the role; and (3) during 1995-2007, human factors hastened the increase of aeolian desertification area when climate was warm-humid and wind speed decreased. In conclusion, the expansion of aeolian desertification area in Gangcha County was the result of mutual interaction among the dry-wet fluctuation, the human activities and aeolian desertified land in the frail alpine ecosystem.

参考文献

[1]董光荣,靳鹤岭,陈惠中,等.中国北方半干旱和半湿润地区沙漠化的成因[J].第四纪研究,1998,(2):136-144.

[2]董光荣,李森,李保生,等.中国沙漠形成演化的初步研究[J].中国沙漠,1991,11(4):23-32.

[3]董光荣,李长治,金炯,等.关于土壤风蚀风洞模拟实验的某些结果[J].科学通报,1987,(4):297-301.

[4]董光荣,吴波,慈龙骏,等.我国荒漠化现状、成因与防治对策[J].中国沙漠,1999,19(4):318-332.

[5]Dong Y X.Research on the status of sandy desertification disaster and its driving force in Xizang[J].Journal of Natural Disasters,2001,(10):96-102.

[6]Li F,He Y F,Liu Z M. Dynamics of sandy desertification and its driving forces in western Jilin Province [J].Chinese Geographical Science,2001,(14):57-62.

[7]李森,李凡,孙武,等.黑河下游额济纳绿洲现代荒漠化过程及其驱动机制[J].地理科学,2004,24(1):61-67.

[8]吐尔逊·哈斯木,曼尼萨汗·图尔隼,韩桂红,等.近50 a以来塔里木河下游土地沙漠化影响因子分析[J].中国沙漠,2009,29(6):1029-1034.

[9]吐尔逊·哈斯木,曼尼萨汗·吐尔隼,祖木拉提·伊布拉音,等.导致塔里木河流域土地沙漠化扩展的深层次原因分析[J].中国沙漠,2011,31(6):1380-1387.

[10]陈忠升,陈亚宁,李卫红.新疆和田河流域土地利用/覆被变化及其驱动力分析[J].中国沙漠,2010,30(2):326-333.

[11]胡光印,董治宝,逯军峰,等.黄河源区1975-2005年沙漠化时空演变及其成因分析[J].中国沙漠,2011,31(5):1079-1086.

[12]逯军峰,董治宝,胡光印,等.甘肃省玛曲县土地沙漠化发展及其成因分析[J].中国沙漠,2012,32(3):604-609.

[13]马义娟,钱锦霞,苏志珠.晋西北地区气候变化及其对土地沙漠化的影响[J].中国沙漠,2011,31(6):1585-1589.

[14]周立华,朱艳玲,黄玉邦.禁牧政策对北方农牧交错区草地沙漠化逆转过程影响的定量评价[J].中国沙漠,2012,32(2):308-313.

[15]卢华,晏玉梅.刚察县草地退化主要原因及其治理对策[J].青海草业,2007,16(2):50-51.

[16]张文彤,董伟.SPSS统计分析高级教程[M].北京:高等教育出版社,2004:213-233.

[17]张登山,高尚玉,石蒙沂,等.青海高原土地沙漠化及其防治[M].北京:科学出版社,2009:138-143.

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