干旱区生态环境知识资源中心(Arid): 三峡库区紫色土坡地土壤粗骨沙化和酸化特征

Arid

	三峡库区紫色土坡地土壤粗骨沙化和酸化特征
其他题名	Characteristics of Soil Coarseness and Acidification of Purple Soil Sloping Field in the Three Gorges Reservoir Area
	董杰 1; 张重阳 1; 罗丽丽 2; 杨达源 3; 陈可锋 3
ISSN	1009-2242
出版年	2007
卷号	21 期号:6 页码:31-34
中文摘要	土壤侵蚀是三峡库区紫色土坡地土壤退化的主因,并由此造成土壤粗骨沙化和酸化。利用土地特性系列比较法,通过野外调查和室内分析相结合,研究了三峡库区紫色土坡地土壤退化特征,结果表明：（1）与未退化样地相比,不同利用方式和不同坡度段土壤粗化现象明显,表明它们存在不同程度的侵蚀退化。各土地利用类型pH值均有所减少,表征该研究区紫色土向酸性方向发展,特别是园地和菜地。（2）不同利用方式下土壤沙化程度由高到低的顺序是：荒地〉建设用地〉耕地〉草地〉林地〉菜地〉园地。（3）不同坡度段紫色土坡地土壤沙化程度基本随坡度的增加而增大,但〉30°坡度段土壤沙化最轻。（4）不同利用方式和不同坡度段土壤粘粒、有机质、全N、碱解氮、全P、速效P、全K、速效K、阳离子交换量、pH值及微量元素之间存在着明显的相关性。
英文摘要	Soil erosion is a main factor of soil degradation of purple soil sloping field in the Three Gorges reservoir area,and therefore leads to soil coarseness and acidification.The purpose of this study was to investigate and test the characteristics of soil degradation on sloping field of purple soil located in the Three Gorges reservoir area by comparing a series of soil characters.The results showed that:(1) Comparing with the samples without degradation,we educe that purple soil under different land use types and different slope segments has obvious coarse phenomena,and this indicates purple soil has different degree degradation phenomena.pH value of purple soil under different land use types is decreasing,this indicates purple soil takes on acidic direction,expressly garden plot and vegetable plot.(2) The order of desertification degree of different soil is: wasteland>building land>plantation>grassplot>woodland>vegetable plot>garden plot.(3) Desertification degree of different slope segments purple soil always become higher along with it’s slope degree,but the slope segment of >30° is the lightest.(4) From the relativity analysis of purple soil degradation index by SPSS12.0 we can deduce all kinds of the relation under different land use types and different slope segments.
中文关键词	紫色土坡地 ; 土壤退化 ; 粗骨化 ; 酸化 ; 三峡库区
英文关键词	purple soil sloping field soil degradation coarseness acidification the Three Gorges reservoir area
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:3041355
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221465
作者单位	1.聊城大学环境与规划学院, 聊城, 山东 252059, 中国; 2.鹤壁职业技术学院招生就业处, 鹤壁, 河南 458030, 中国; 3.南京大学地理与海洋科学学院, 南京, 江苏 210093, 中国
推荐引用方式 GB/T 7714	董杰,张重阳,罗丽丽,等. 三峡库区紫色土坡地土壤粗骨沙化和酸化特征[J],2007,21(6):31-34.
APA	董杰,张重阳,罗丽丽,杨达源,&陈可锋.(2007).三峡库区紫色土坡地土壤粗骨沙化和酸化特征.,21(6),31-34.
MLA	董杰,et al."三峡库区紫色土坡地土壤粗骨沙化和酸化特征".21.6(2007):31-34.