干旱区生态环境知识资源中心(Arid): 粤北岩溶山区石漠化过程中土壤养分变化研究

Arid

	粤北岩溶山区石漠化过程中土壤养分变化研究
其他题名	Change of Soil Nutrient in Process of Rocky Desertification in Karst Mountainous Area of North Guangdong
	黄金国; 李森; 魏兴琥; 王兮之
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2012
卷号	32 期号:1 页码:163-167
中文摘要	为了探讨石漠化过程对土壤养分的影响,了解粤北岩溶山区石漠化过程中土壤养分的变化规律,选择岩背镇和江英镇为调查区,按照石漠化的不同程度设置样地,系统调查了轻度、中度、重度和极重度石漠化土地表层(0~20cm)土壤养分的变化。结果表明,石漠化过程与土壤养分状况有密切关系,随着土地石漠化的发展,土壤有机质、全N以及速效N、速效P、速效K含量呈现出显著下降趋势(P<0.05),土壤逐步贫瘠化。土壤养分含量的减少与石漠化过程形成正反馈关系,并具有退化方向的一致性和退化过程的同步性等特点。
英文摘要	For exploring the impacts of rocky desertification process on soil nutrient change and understanding the laws of soil nutrient variation in rocky desertification process in karst mountainous area of North Guangdong,a margin area of rocky desertification region in Yanbei town and Jiangying town was selected as study site.According to the different levels of rocky desertification: slight rocky desertification,moderate rocky desertification,severe rocky desertification,and very severe rocky desertification,the surface soil layer(020 cm) samples were investigated and analyzed.Results drawn from this case study are listed as follows: There is a close relationship between rocky desertification process and soil nutrient condition,and with the development of the rocky desertification,the contents of soil organic matter,total N,available N,available P and available K show a obviously decreasing trend(P<0.05).Simultaneously,soil became more and more infertile.The decrease of soil nutrient contents shows a relation of positive feedback with rocky desertification process,and there is consistency in the degradation direction and synchronism in the degradation process.
中文关键词	石漠化过程 ; 土壤养分 ; 粤北岩溶山区
英文关键词	rocky desertification process soil nutrient karst mountainous area of North Guangdong
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:4419534
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228968
作者单位	佛山大学资源环境系, 佛山, 广东 528000, 中国
推荐引用方式 GB/T 7714	黄金国,李森,魏兴琥,等. 粤北岩溶山区石漠化过程中土壤养分变化研究[J],2012,32(1):163-167.
APA	黄金国,李森,魏兴琥,&王兮之.(2012).粤北岩溶山区石漠化过程中土壤养分变化研究.中国沙漠,32(1),163-167.
MLA	黄金国,et al."粤北岩溶山区石漠化过程中土壤养分变化研究".中国沙漠 32.1(2012):163-167.