干旱区生态环境知识资源中心(Arid): 土地利用方式对桂西北石漠化地区土壤理化性质的影响

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	土地利用方式对桂西北石漠化地区土壤理化性质的影响
其他题名	Effects of Different Land Use Systems on Soil Physical and Chemical Properties in Karst Rocky Desertification Area of Northwest Guangxi Province
	李生; 任华东; 姚小华
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2013
卷号	33 期号:3 页码:58-62,190
中文摘要	在广西壮族自治区凌云县典型石漠化地区对7种不同土地利用方式土壤理化性质进行了调查分析。结果表明,不同土地利用方式对土壤容重、含水量、总孔隙度、毛管孔隙度、非毛管孔隙度存在极显著差异(p<0.01),有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾及交换性Ca~(2+)含量差异极显著(p<0.01)。相对阔叶林地土壤,灌木林、针叶林、退耕台地、草地、退耕坡地、农田土壤的退化程度依次增加。农田土壤质量最低,针叶林地、草地、退耕坡地、退耕台地土壤质量为中等,灌木林地与阔叶林地土壤质量较高。人为干扰是影响土壤理化性质的主导因素,干扰强度大,土壤理化性质退化严重。控制不合理的人为干扰及恢复结构良好的地上植被对改善土壤质量具有重要意义。
英文摘要	Soil physiochemical properties for 7different landuse types were investigated in the typical karst rocky desertification area of Lingyun City,Guangxi Zhuang Autonomous Region.Results showed that different landuse systems had significant effects(p<0.01)on the bulk weight,water content,total porosity,capillary porosity and non-capillary porosity,as well as the organic matter,total N,P and K,effective N,P and K,and exchangeable Ca~(2+).Compared with the soil in broad-leaf forest,the degrees of soil degradation in shrub land,coniferous forest land,fallow terrace farmland,grassland,fallow sloping land and farmland became serious in turn.Among them,soil quality was the worst in farmland and it was in middle in coniferous forest land,grassland,fallow sloping land and fallow terrace farmland,while it was better in shrub land and broadleaf forest land.Human disturbances were the dominant factor affecting soil physiochemical properties. Hence,the degrees of soil degradation were changed with disturbance intensity.It is significant to control unreasonable disturbances and restore good vegetation for soil quality improvement in the region.
中文关键词	喀斯特石漠化 ; 土地利用 ; 理化性质 ; 土壤质量
英文关键词	karst rocky desertification land use physical and chemical properties soil quality
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:4885788
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230151
作者单位	中国林业科学研究院亚热带林业研究所, 国家林业局亚热带林木培育重点开放性实验室, 富阳, 浙江 311400, 中国
推荐引用方式 GB/T 7714	李生,任华东,姚小华. 土地利用方式对桂西北石漠化地区土壤理化性质的影响[J],2013,33(3):58-62,190.
APA	李生,任华东,&姚小华.(2013).土地利用方式对桂西北石漠化地区土壤理化性质的影响.水土保持通报,33(3),58-62,190.
MLA	李生,et al."土地利用方式对桂西北石漠化地区土壤理化性质的影响".水土保持通报 33.3(2013):58-62,190.