干旱区生态环境知识资源中心(Arid): 小针茅荒漠草原生长季表层土壤有机碳月动态及影响因素

Arid

	小针茅荒漠草原生长季表层土壤有机碳月动态及影响因素
其他题名	The monthly dynamics of surface soil organic carbon of Stipa klemenzii desert steppe and the influencing factors
	姚国征 1; 杨婷婷 2; 尚润阳 3; 吴昊 2; 李鹏 4
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2014
卷号	28 期号:9 页码:51-56
中文摘要	以内蒙古苏尼特右旗小针茅荒漠草原两种主要草地类型为研究对象,选择典型样地,通过实地调查测定其5~9月生长季地上、地下生物量、土壤有机碳及土壤含水量,分析了小针茅荒漠草原生长季土壤有机碳的月动态,探讨了地下生物量、气温、降水及土壤含水量对土壤有机碳的影响。研究结果表明:1)小针茅荒漠草原两种草地型生长季土壤有机碳月变化趋势不同。小针茅+无芒隐子草草地生长季土壤有机碳月变化表现为从5月份开始逐渐降低,到9月份又略有增加,狭叶锦鸡儿-小针茅+无芒隐子草草地土壤有机碳月变化表现为5~7月增加,8月份降低,9月份又增加的趋势。2)小针茅荒漠草原5~9月生长季各月土壤有机碳含量差异不显著,0-10cm土层深度土壤有机碳含量低于10-20cm和20-30cm土层深度土壤有机碳含量。3)小针茅荒漠草原5~9月土壤有机碳含量与月降水量之间呈正相关关系,但不显著。而6~9月土壤有机碳含量与月降水量之间呈显著正相关关系。4)小针茅荒漠草原土壤有机碳受表层地下生物量影响较大,土壤有机碳含量与0~10cm土层地下生物量呈显著正相关。5)小针茅荒漠草原生长季土壤有机碳含量与月均温之间没有显著相关性,与0~10cm土壤含水量呈极显著正相关。
英文摘要	Taking Stipa Klemenzii desert steppe as an example,selecting typical plot,the above and below ground biomass,soil organic carbon and soil water content were surveyed during May to September,and the monthly dynamic of soil organic carbon in growing season was analyzed,the influences of biomass,temperature, precipitation and soil water content to soil organic carbon were studied. The results showed that: (1) The trends of soil organic carbon content of 2 grassland types were different,soil organic carbon content of the grassland type of Stipa klemenzii + Cleistogenes songorica decreased from May to August,then slightly increased in September, soil organic carbon content of the grassland type of Caragana stenophylla Pojark - Stipa klemenzii + Cleistogenes songorica increased from May to July,decreased in August,then increased in September. (2) Soil organic carbon content in every month had no significant difference,the content in the soil layer of 0 - 10cm was less than those in the soil layer of 10 - 20cm and 20 - 30cm. (3) During May to September,soil organic carbon content of Stipa Klemenzii desert steppe was a positive correlation with month precipitation,but not significant,while, during June to September,the two factor had significant correlation. (4) Soil organic carbon had significant positive correlation with below ground biomass of 0 - 10cm soil layer. (5) Soil organic carbon had no significant correlation with monthly average temperature,but had significant positive correlation with soil water content in the soil layer of 0 - 10cm.
中文关键词	小针茅草原 ; 土壤有机碳 ; 地下生物量 ; 月动态 ; 影响因素
英文关键词	Stipa Klemenzii steppe soil organic carbon below ground biomass monthly dynamic influence factor
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:5255448
来源机构	内蒙古农业大学 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231245
作者单位	1.北京林业大学水土保持学院, 北京 100083, 中国; 2.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010018, 中国; 3.水利部海河水利委员会水土保持处, 天津 300170, 中国; 4.中国农业科学院草原研究所, 呼和浩特, 内蒙古 010010, 中国
推荐引用方式 GB/T 7714	姚国征,杨婷婷,尚润阳,等. 小针茅荒漠草原生长季表层土壤有机碳月动态及影响因素[J]. 内蒙古农业大学, 北京林业大学,2014,28(9):51-56.
APA	姚国征,杨婷婷,尚润阳,吴昊,&李鹏.(2014).小针茅荒漠草原生长季表层土壤有机碳月动态及影响因素.干旱区资源与环境,28(9),51-56.
MLA	姚国征,et al."小针茅荒漠草原生长季表层土壤有机碳月动态及影响因素".干旱区资源与环境 28.9(2014):51-56.