干旱区生态环境知识资源中心(Arid): 伊犁河谷缓坡地融雪侵蚀特征研究

Arid

	伊犁河谷缓坡地融雪侵蚀特征研究
其他题名	Erosion Traits of Melted -snow in Gentle -slope Land of Ili River Valley
	史彦江 1; 宋锋惠 1; 罗青红 1; 朱首军 1; 刘军 2
ISSN	1001-4330
出版年	2009
卷号	46 期号:5 页码:1111-1116
中文摘要	采用坡面径流小区试验法,于2009年3月3～10日,对伊犁河谷缓坡地的春季融雪侵蚀特征进行了系统研究.结果表明:8°坡融雪强度始终较3°和5°坡的大,其径流强度的日变幅也最大;8°坡坡面日产流量和产沙量均最大,日产流量分别比5°和3°坡高24.5和28.7 mL/d,泥沙侵蚀量多4.23和5.85 kg/m3;坡度间坡面冲刷细沟的分布和细沟侵蚀强度也有差异,8°坡坡面的冲刷细沟多呈网状交错状,主要分布在坡面下部,冲蚀沟多而较长、浅且宽;5°和3°坡的冲刷沟则在坡面的中、下部呈分散状分布,冲蚀沟少而短、浅且窄;融雪后,0～20 cm土层的土壤含水量表现为:8°坡显著低于5°和3°坡.该研究结论将为伊犁河谷及干旱、半干旱区生态相似区域春季融雪径流的集蓄利用、侵蚀坡地的保护和治理提供了依据.
英文摘要	The erosion traits of melted- snow were studied during spring from March 3 to March 10,2009,at Ili River valley slope land.The results were shown as follows:the intensity of runoff caused by melted - snow and the variety of runoff intensity per day on 8°slope - land were more than those on 5°slope - land and on 3°slope-land, respectively;meanwhile,the amount of runoff and the sand mass in runoff on 8°slope - land were 24.5 ml/ d and 4.23 kg/m~3 more than those on 5°slope - land and 28.7 mL/d and 5.85 kg/m~3 more than those on 3°slope - land,respectively.The distribution of water- erosion ditchs and erosion intensity of ditchs were different among those slope land in this study.On the 8°slope - land,most of the ditchs were long,thin and wide and distributed on the bottom of the slope land like net;On the 5°slope - land and 3°slope - land,most of ditchs were short,thin and narrow and distributed on the middle and bottom of the slope land dispersedly.After thaw,on the 5°and 3°slope - land,the water content in 0 - 20cm soil layer were relatively high and there was no difference between them;but their soil water content were more than that of 8°slope - land significantly.So,by the study,some methods and suggestions were provided for conserving and restoring the erosion land in Ili River valley or the land in some smilar arid areas.
中文关键词	伊犁河谷 ; 缓坡地 ; 融雪 ; 侵蚀
英文关键词	Ili River valley gentle-slope land melted-snow erosion
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3679071
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224381
作者单位	1.新疆林科院造林治沙所, 乌鲁木齐, 新疆 830063, 中国; 2.伊犁州林业科学研究院, 伊宁, 新疆 835000, 中国
推荐引用方式 GB/T 7714	史彦江,宋锋惠,罗青红,等. 伊犁河谷缓坡地融雪侵蚀特征研究[J],2009,46(5):1111-1116.
APA	史彦江,宋锋惠,罗青红,朱首军,&刘军.(2009).伊犁河谷缓坡地融雪侵蚀特征研究.,46(5),1111-1116.
MLA	史彦江,et al."伊犁河谷缓坡地融雪侵蚀特征研究".46.5(2009):1111-1116.