干旱区生态环境知识资源中心(Arid): 荒漠化土壤对人工植被恢复工程的响应

Arid

	荒漠化土壤对人工植被恢复工程的响应
其他题名	Characteristics of desertified soil in desertification reversing process by artificial vegetation
	齐雁冰; 常庆瑞; 刘梦云; 刘京; 陈涛
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2011
卷号	29 期号:3 页码:180-185,198
中文摘要	人工植被恢复是荒漠化土壤逆转的主要途径，通过对青海省沙珠玉治沙站人工植被恢复工程下荒漠化土壤逆转过程中土体构型、土壤质地、元素组成和理化性质的分析，研究了荒漠化土壤对人工植被恢复工程的响应。结果表明，人工植被恢复工程对荒漠化土壤具有很好的改良作用，受人工植被影响，土体构型逐渐复杂，出露地表的母质层逐渐被淋溶层和淀积层覆盖，结皮层逐渐形成，土壤中细粒物质在表层逐渐富集，其中砂粒平均含量减少152．47 g/蚝，粘粒平均含量仅增加105．64 g/kg。土壤有机质和养分含量及CEC逐渐提高，结皮层有机碳含量可达10．41 g/kg，全氮达o．95 g/kg，碱解氮达84．7 mg/b，速效钾达290．0 mg/蛞，速效磷达11．6 mg/kg，随着荒漠化的逆转，土体中Si02含量明显降低，降幅达100 g/蚝以上，Al、Fe、ca、Mg、Ti和Mn等成分不断升高，升高幅度一般在300A，～60％之间，土壤保水保肥性能增强，生产力不断提高。研究区土地逆转过程可划分为：风沙侵蚀为主、风沙蚀积平衡、风沙沉积为主和土壤形成发育4个阶段。
英文摘要	Artificial vegetation restoration is one of the most common measures to desertification control.Soil mechanical composition,physical features,chemical properties and total composition of chemical elements of soils are measured for studying the reversal desertification in Shazhuyu desert control site.The results indicated that artificial vegetation restoration had better impact on the improvemtn of desertified soil.Influenced by vegetation,the soil body configuration became more complex gradually,parent material horizon was gradually covered by the leached and illuvial horizon,and sand-fixing formed.The soil surface enriched gradually in fine material,in which the average sand content decreased by 152.47 g/kg,while the average content of clay increased by only 105.64 g/kg.Soil organic matter,nutrient and CEC increased gradually.The organic carbon content of sand-fixing was up to 10.41 g/kg,total nitrogen up to 0.95 g/ kg,available nitrogen up to 84.7 mg/kg,K up to 290.0 mg/kg,and available P up to 11.6 mg/kg.With the reversal of desertification,soil SiO2 was decreased significantly by 100 g/kg,while Al,Fe,Ca,Mg,Ti and Mn were increased gradually by 30 % to 60 % .Soil performance of preserving moisture and fertility strengthened.Soil reversal desertification process can be divided into four stages:wind blown erosion,sand erosion and deposit balance,sand deposit and soil formation.
中文关键词	人工植被恢复工程 ; 荒漠化 ; 土壤性质 ; 逆转过程
英文关键词	artificial vegetation restoration desertification soil characteristics reversal process
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:4206551
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226417
作者单位	西北农林科技大学资源环境学院, 杨凌, 陕西 712100, 中国
推荐引用方式 GB/T 7714	齐雁冰,常庆瑞,刘梦云,等. 荒漠化土壤对人工植被恢复工程的响应[J]. 西北农林科技大学,2011,29(3):180-185,198.
APA	齐雁冰,常庆瑞,刘梦云,刘京,&陈涛.(2011).荒漠化土壤对人工植被恢复工程的响应.干旱地区农业研究,29(3),180-185,198.
MLA	齐雁冰,et al."荒漠化土壤对人工植被恢复工程的响应".干旱地区农业研究 29.3(2011):180-185,198.