干旱区生态环境知识资源中心(Arid): 季节性放牧对典型草原土壤微生物碳氮周转的影响

Arid

	季节性放牧对典型草原土壤微生物碳氮周转的影响
其他题名	Effects of Seasonal Grazing on Turnover of Carbon and Nitrogen in Soil Microorganism in Semi-arid Typical Grassland
	冯祥超; 张璐; 李雅茹; 白萨拉; 宝音陶格涛
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2017
卷号	39 期号:2 页码:78-84,95
中文摘要	在锡林郭勒典型草原区,以留茬6cm作为终止放牧依据,探究植物不同生长时期适度放牧对草地土壤微生物碳、氮周转的影响。结果表明:(1)6、8月放牧处理比围封和5~9月放牧提高0~10cm土壤微生物量碳周转率,缩短0~30cm土层的土壤微生物量碳周转时间。(2)6、8月放牧和7、9月放牧处理的0~30cm土壤微生物量碳存在差异,并均相对围封禁牧提高了土壤微生物量碳流通速率。说明在植物生长中后期适度放牧比植物全生长季节放牧,能增加土壤微生物量;放牧对10~20cm土壤微生物量氮流通量表现出积极的增加作用。(3)三种放牧处理提高了10~20cm土层的土壤微生物量氮流通速率。
英文摘要	The effects of moderate grazing in different plants growth stages from May to September in Xilingol steppe zone on turnover of carbon and nitrogen in soil microorganism were studied based on grazing stubble 6cm to terminate grazing.The results showed that:1)Compared with enclosure and grazing from May to September,grazing in June and August can improve the carbon turnover rate of soil microbial biomass in soil in 0-10cm depth and shorten the turnover time of carbon turnover of soil microbial biomass. However,the soil microbial biomass carbon turnover time can only be reduced in 0-30cm depth.2)The soil microbial biomass carbon in June,August,July,September showed differences in soil in 0-30cm depth,enclosure increased the flux rates of soil microbial biomass carbon.It was concluded that moderate grazing can increase soil microbial biomass in middle and late growth season compared with whole stages of plants,nevertheless,fluxes of soil microbial biomass nitrogen showed that grazing had a positive influence on it in soil in depth of 10-20cm.3)The three grazing treatments increased the flux rate of soil microbial biomass nitrogen in soil in depth of 10-20cm.
中文关键词	微生物量 ; 季节性放牧 ; 微生物量周转
英文关键词	Microbial biomass Seasonal grazing Microbial biomass turnover
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:5957638
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236991
作者单位	内蒙古大学生态与环境学院, 呼和浩特, 内蒙古 010021, 中国
推荐引用方式 GB/T 7714	冯祥超,张璐,李雅茹,等. 季节性放牧对典型草原土壤微生物碳氮周转的影响[J],2017,39(2):78-84,95.
APA	冯祥超,张璐,李雅茹,白萨拉,&宝音陶格涛.(2017).季节性放牧对典型草原土壤微生物碳氮周转的影响.中国草地学报,39(2),78-84,95.
MLA	冯祥超,et al."季节性放牧对典型草原土壤微生物碳氮周转的影响".中国草地学报 39.2(2017):78-84,95.