干旱区生态环境知识资源中心(Arid): 腾格里沙漠南缘沙漠化逆转过程中的土壤化学性质变化特征

Arid

	腾格里沙漠南缘沙漠化逆转过程中的土壤化学性质变化特征
其他题名	Variations of Soil Chemical Properties in Reversion Process of Desertification at the South Edge of the Tengger Desert
	靳虎甲; 王继和; 李毅; 马全林; 张德魁; 刘有军; 陈芳; 徐丽恒
ISSN	1009-2242
出版年	2008
卷号	22 期号:5 页码:119-124
中文摘要	在腾格里沙漠南缘,应用空间代替时间的方法,选择了流动沙丘、封育5 a、封育15 a和封育25 a样地的恢复演替序列,代表沙漠化逆转的不同阶段,研究了干旱区沙漠化逆转过程中的土壤化学性质变化特征。结果表明,腾格里沙漠南缘沙漠化逆转过程中,0-300 cm土壤pH、电导率、速效磷、速效钾、全氮、有机质呈现不同程度的波动变化,但均值持续增大;各阶段表层土壤pH逐步减小,而电导率和代表土壤肥力状况的速效钾、速效磷、全氮、有机质在封育恢复过程中均持续增大,且各阶段表层土壤化学性质总体差异显著。研究认为,腾格里沙漠南缘的沙漠化逆转过程,是土壤化学性质逐步向良性化方向发展的过程,是土壤的形成与改良过程。
英文摘要	At the south edge of the Tengger Desert,chose the moving dune, enclosure for 5 years, enclosure for 15 years and enclosure for 25 years of the restoration successive series, It represents the different stages of reversion process of desertification. The soil chemical properties of the decertified land were studied in rever- sion process of desertification with the method of substituting time with space. The results showed that the soil pH, soil electrical conductivity, soil available potassiumat, soil available phosphorus, soil total nitrogen and soil organic matter showed varying degrees of fluctuation changes at depth of 0--300 em,but the mean valuehave increased continuously. Surface-soil pH gradually decreased in reversion process of desertification, but surface-soil electrical conductivity and soil fertility on behalf of soil available potassiumat, soil available phosphorus,soil total nitrogen and soil organic matter gradually increased in reversion process of desertification, and the overall difference of the surface soil chemical properties in various stages was significant. It is concluded that the soil chemical properties gradually develop in the benign direction in reversion process of desertification at the south edge of the Tengger Desert.
中文关键词	干旱区 ; 沙漠化 ; 封育 ; 土壤化学性质 ; 植被恢复
英文关键词	arid areas desertification enclosure soil chemical properties vegetation restoration
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:3413958
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222787
作者单位	甘肃农业大学林学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	靳虎甲,王继和,李毅,等. 腾格里沙漠南缘沙漠化逆转过程中的土壤化学性质变化特征[J]. 甘肃农业大学,2008,22(5):119-124.
APA	靳虎甲.,王继和.,李毅.,马全林.,张德魁.,...&徐丽恒.(2008).腾格里沙漠南缘沙漠化逆转过程中的土壤化学性质变化特征.,22(5),119-124.
MLA	靳虎甲,et al."腾格里沙漠南缘沙漠化逆转过程中的土壤化学性质变化特征".22.5(2008):119-124.