干旱区生态环境知识资源中心(Arid): 长城沿线毛乌素沙地形成、扩展及其荒漠化效应

Arid

	长城沿线毛乌素沙地形成、扩展及其荒漠化效应
其他题名	Researches on the Formation, Expansion and Desertification Effects of Maowusu Sandy Land Along the Great Wall
	杜忠潮 1; 宁建宏 2; 惠镇江 3
ISSN	1005-3409
出版年	2006
卷号	13 期号:3 页码:226-228,232
中文摘要	地质历史时期河套古湖退缩残留的湖滨沙堤受风力作用就地起沙，是毛乌素沙地形成的物质基础。受自然环境动态变化与人类不合理活动的影响，历时时期毛乌素沙地的土地利用和经济方式发生过游牧为主-亦牧亦农-农耕为主的反复变化。唐代以至明清时期．长城沿线毛乌素沙地土地沙化有愈演愈烈之势．并在不同地段，分别以片沙蔓延、沙舌扩展、河谷沙化及宽带沙舌等形式向东南方向扩展。此种现象不仅造成本地区土地类型改变、植被摧毁和土壤侵蚀加重等，也引起毗邻地区沙尘暴频率和影响范围增大、加重黄土区土壤侵蚀及河流粗沙输沙率等荒漠化效应。
英文摘要	The lake shore sandy dike in the shrinking process of＂ Hetao ancient lake＂in the geologic period, which is suffered from the wind force function ＂rises right on the sandy land＂,is the substantial basis of the formation of Maowusu sandy land. Suffered from the natural environmental development and the Human＇s inconsequential activities, Maowusu sandy land in the history has undergone the reiterative change of ,the nomad way of life is the main- nomadism as well as agriculture-agriculture is the main＂. From Tang Dynasty to Ming and Qing periods, the desertification of the land turned to stronger and stronger, and there were different expand modes toward the Southeast in different districts, such as spreads with sheet sand, expands with sand tongues, spreads along the river valley and expands with the wide zonal sand tongue. This desertification is not only resulted in the changes of the land＇s type,the destruction of the vegetation and the erosion of the soil is aggravated in the local area, but also causes the frequency and the affective scope of the sandstorm enlarges and aggravates the erosion of the soil and the rate of schlepping sand with the river in the adjacent loess areas.
中文关键词	长城沿线 ; 毛乌素沙地 ; 变迁 ; 扩展 ; 荒漠化
英文关键词	along the Great Wall line Maowusu sandy land vicissitude expansion desertification
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES ; GEOLOGY
WOS研究方向	Environmental Sciences & Ecology ; Geology
CSCD记录号	CSCD:2670205
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220179
作者单位	1.咸阳师范学院资源环境与城市科学系, 咸阳, 陕西 712000, 中国; 2.西安煤炭科学分院环境工程研究所, 西安, 陕西 710054, 中国; 3.陕西省人民政府扶贫办, 西安, 陕西 710000, 中国
推荐引用方式 GB/T 7714	杜忠潮,宁建宏,惠镇江. 长城沿线毛乌素沙地形成、扩展及其荒漠化效应[J],2006,13(3):226-228,232.
APA	杜忠潮,宁建宏,&惠镇江.(2006).长城沿线毛乌素沙地形成、扩展及其荒漠化效应.,13(3),226-228,232.
MLA	杜忠潮,et al."长城沿线毛乌素沙地形成、扩展及其荒漠化效应".13.3(2006):226-228,232.