干旱区生态环境知识资源中心(Arid): 雅鲁藏布江江当宽谷区固沙措施对流沙理化性质的改良效应

Arid

	雅鲁藏布江江当宽谷区固沙措施对流沙理化性质的改良效应
其他题名	Improvement Effects of Sand Fixing Measures on Shifting-sand Physical and Chemical Properties in Jiandang Wide Valley Area of Yarlung Zangbo River
	庞营军 1; 屈建军2 ; 陈怀顺 3; 谢胜波 2; 肖建华 2
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2016
卷号	36 期号:6 页码:67-72
中文摘要	[目的]分析雅鲁藏布江江当宽谷区流沙治理技术(砾石覆盖+人工植被+围封)对流沙理化性质的改良效应,为区域荒漠化治理工作提供理论指导。[方法]对比分析固沙区和流动沙丘土壤机械组成、有机质和养分等指标开展研究。[结果]采用植物和工程相结合的固沙措施,在流沙表面覆盖砾石、播种固沙植物,并对该区域进行围封后,沙丘表面植被盖度增加,流沙基本固定。与流动沙丘相比,固沙区土壤的黏粒、粉粒明显增多。固沙区土壤的有机质、全氮、碱解氮、全磷、速效磷、速效钾含量比流动沙丘高;尤其是土壤表层05cm,分别比流动沙丘高出634.3%,268.0%,506.5%,38.3%,343.8%,66.7%。固沙区05cm土层的pH值比流动沙丘降低了11.5%;电导率比流动沙丘增加了268.1%。[结论]该项流沙治理技术(砾石覆盖+人工植被+围封)的固沙和改良土壤理化性质作用明显,适宜在该区推广使用。
英文摘要	[Objective]Analyzing the responses of shifting-sand physical and chemical properties improvement to sand control technologies(gravel cover+artificial vegetation+enclosure)in Jiandang wide valley area of Yarlung Zangbo River,to provide theoretical guidance for regional desertification control.[Methods]Soil mechanical composition,organic matter and nutrients,etc.were comparatively analyzed between the samples of the sand fixed region and the ones of the mobile sand dune.[Results]After combined plantation and engineering measures were applied,such as gravel laying over the mobile dune surface,sand-fix-capable plant seeds sowing and enclosing,the sand of dune surface was fixed and the vegetation cover increased.As compared with the mobile sand dune,the contents of clay and silt particles increased significantly.The contents of soil organic matter,total nitrogen,alkaline hydrolytic nitrogen,total phosphorus,available phosphorus and potassium in sand fixed region were higher than those of the corresponding values of mobile sand dune. Especially in 05cm soil layer,greater improvements of 634.3%,268.0%,506.5%,38.3%,343.8%, 66.7%of the fixed dune were obtained against the ones of the mobile sand dune,respectively.pH value at 05cm soil layer in sand fixed region decreased by 11.5%in comparison with the one of the mobile sand dune;whereas the value of conductivity at 05cm soil layer in sand fixed region increased by 268.1%than the value of the mobile sand dune.[Conclusion]The sand control technologies(gravel cover+artificial vegetation+ enclosure)obviously fixed mobile sand and improved the soil physical and chemical properties,and were suitable for popularization and application in these region.
中文关键词	雅鲁藏布江 ; 砾石覆盖 ; 流沙 ; 改良
英文关键词	Yarlung Zangbo River gravel mulch shifting sand improvement
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:5890600
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234964
作者单位	1.中国林业科学研究院荒漠化研究所, 北京 100091, 中国; 2.中国科学院寒区旱区环境与工程研究所, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国; 3.中国科学院寒区旱区环境与工程研究所临泽内陆河流域研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	庞营军,屈建军,陈怀顺,等. 雅鲁藏布江江当宽谷区固沙措施对流沙理化性质的改良效应[J]. 中国科学院西北生态环境资源研究院,2016,36(6):67-72.
APA	庞营军,屈建军,陈怀顺,谢胜波,&肖建华.(2016).雅鲁藏布江江当宽谷区固沙措施对流沙理化性质的改良效应.水土保持通报,36(6),67-72.
MLA	庞营军,et al."雅鲁藏布江江当宽谷区固沙措施对流沙理化性质的改良效应".水土保持通报 36.6(2016):67-72.