干旱区生态环境知识资源中心(Arid): 我国北方草原沙漠化过程中土壤碳、氮变化规律研究

Arid

	我国北方草原沙漠化过程中土壤碳、氮变化规律研究
其他题名	Soil C and N dynamics during desertification of grassland in Northern China
	刘颖茹; 杨持; 朱志梅; 刘美玲
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2004
卷号	15 期号:9 页码:1604-1606
中文摘要	对内蒙古锡林郭勒盟多伦县境内75个样点土壤质地、全碳、全氮的测定和地上植被状况分析结果表明,草原沙漠化过程不同阶段的变化体现在土壤氮、碳、粘粒含量的有规律变化,土壤氮、碳含量减少、质地变粗;土壤氮、碳含量与粘粒含量间呈显著相关性,氮含量与粘粒含量间的相关系数(0.901)分别大于碳、氮含量间的相关系数(0.627)和碳含量与粘粒含量间的相关系数(0.642).土壤中粘粒含量显著减少,土壤中氮元素的衰减比碳元素明显;沙质草原沙漠化不同阶段的C/N比呈现增加的趋势.
英文摘要	This paper investigated the aboveground vegetations and the soil texture and total C and N at 75 sites of Duolun County in Xilinguole League of Inner Mongolia. The results showed that different types of vegetation community could be used to describe different stages of desertification process. During desertification, the community types were changed in the series of Leymus chinensis + Cleistogenes squarrosa Artemisia frigida Artemisia in-tramongalia Corispermum staunyonii, Chenopodium bryoniaefolium drift sand, and a regular change of soil clay and total C and N contents could also be found. The soil C/N ratio was increased with different stages of grassland desertification, which could be expressed in the series of 8.1113.9612.3628.17.
中文关键词	草原 ; 沙漠化 ; 土壤碳 ; 氮衰减
英文关键词	Grassland Desertification Soil C and N degradation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:1811593
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205629
作者单位	内蒙古大学生态与环境科学系, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	刘颖茹,杨持,朱志梅,等. 我国北方草原沙漠化过程中土壤碳、氮变化规律研究[J],2004,15(9):1604-1606.
APA	刘颖茹,杨持,朱志梅,&刘美玲.(2004).我国北方草原沙漠化过程中土壤碳、氮变化规律研究.应用生态学报,15(9),1604-1606.
MLA	刘颖茹,et al."我国北方草原沙漠化过程中土壤碳、氮变化规律研究".应用生态学报 15.9(2004):1604-1606.