干旱区生态环境知识资源中心(Arid): 内蒙古荒漠草原小针茅群落土壤养分的化学计量学特征

Arid

	内蒙古荒漠草原小针茅群落土壤养分的化学计量学特征
其他题名	Characteristics of Soil Stoichiometry of Stipa klemenzii Community in Desert Steppe of Inner Mongolia
	杨雪栋 1; 孙卫国 2; 宝音陶格涛 1
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2012
卷号	34 期号:5 页码:30-34
中文摘要	以内蒙古荒漠草原小针茅群落为研究对象,探索小针茅群落土壤养分化学计量学特征。结果显示:(1)在取样深度0~30cm范围内,随土壤深度增加,二连浩特样地土壤C∶N和C∶P大致呈现先减后增趋势,苏尼特右旗样地大致为增高趋势;两个样地土壤N∶P都表现为先增后减趋势,土壤C∶N∶P均为先减后增趋势。(2)不同样地同一土层间,土壤C∶P和N∶P均为二连浩特样地小于苏尼特右旗样地;C∶N在0~10cm和20~30cm土层为二连浩特样地大于苏尼特右旗样地,10~20cm为二连浩特样地小于苏尼特右旗样地;C∶N∶P均为二连浩特样地大于苏尼特右旗样地。表明土壤C∶N和C∶P在不同样地不同土层间变化趋势不一致,而N∶P和C∶N∶P表现一致;在不同样地同一土层间,二连浩特样地和苏尼特右旗样地土壤C∶P和N∶P与C∶N∶P刚好相反。小针茅群落土壤C∶N平均值(33.43)明显大于全球土壤平均值(13.33),也明显大于我国土壤平均值(10∶1~12∶1),这可能是由于小针茅群落土壤更加缺乏氮素所致。
英文摘要	Taking Stipa klemenzii communities in desert steppe of Inner Mongolia for the object of study,the characteristics of soil stoichiometry of Stipa klemenzii communities were explored.The results showed that:(1) In 0 ~ 30cm depth of soil,C:N and C:P of soil in Erenhot roughly showed the trend of first decreased and then increased,but a broadly increasing tendency in Suniteyou Banner;N:P of soil showed a decreased trend after increasing trend in two samples and C:N:P of soil showed a trend of first decreased and then increased.(2) In the same depth of soil in different sample,C:P and N:P of soil in Erenhot was less than that of Suniteyou Banner;In depth of 0~10cm and 20~30cm,C:N of soil in Erenhot was greater than that of Suniteyou Banner,but it was opposite in depth of 10~20cm,C:N:P of soil in Erenhot was greater than Suniteyou Banner.These indicated that:in different sample and different depth of soil,C:N and C:P of soil were inconsistent,but N:P and C:N:P of soil was consistent;the same depth of soil in different sample,C:P and N:P of soil was opposite with C:N:P of soil in Erenhot and Suniteyou Banner.The average(33.43) of C:N of soil in Stipa klemenzii communities was significantly greater than that(13.33) of Global,and much greater than that(10:1 to 12:1) of China,which may be due to lower nitrogen content of soil in the Stipa klemenzii community.
中文关键词	荒漠草原 ; 生态化学计量学 ; 小针茅群落 ; 土壤
英文关键词	Desert steppe Ecological stoichiometry Stipa klemenzii community Soil
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:4656088
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228896
作者单位	1.内蒙古大学生命科学学院, 呼和浩特, 内蒙古 010021, 中国; 2.内蒙古大学环境与资源学院, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	杨雪栋,孙卫国,宝音陶格涛. 内蒙古荒漠草原小针茅群落土壤养分的化学计量学特征[J],2012,34(5):30-34.
APA	杨雪栋,孙卫国,&宝音陶格涛.(2012).内蒙古荒漠草原小针茅群落土壤养分的化学计量学特征.中国草地学报,34(5),30-34.
MLA	杨雪栋,et al."内蒙古荒漠草原小针茅群落土壤养分的化学计量学特征".中国草地学报 34.5(2012):30-34.