干旱区生态环境知识资源中心(Arid): 不同放牧制度下短花针茅荒漠草原根系碳储量动态

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	不同放牧制度下短花针茅荒漠草原根系碳储量动态
其他题名	The Dynamics of Carbon Storage in Roots of Stipa breviflora Desert Steppe under Different Grazing Systems
	胡向敏; 侯向阳; 陈海军; 丁勇; 运向军; 武自念
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2014
卷号	36 期号:4 页码:13-17
中文摘要	以内蒙古短花针茅荒漠草原自由放牧、划区轮牧和围栏禁牧样地为研究对象,分析生长季5~10月内0~10 cm、10~ 20 cm、20~ 30 cm 和0~30 cm 土层根系有机碳储量变化规律。结果表明:根系有机碳储量随着土层加深呈递减, 0~ 10 cm土层占到0~30 cm土层根系有机碳储量62.38 % ~ 71.87 %,根系有机碳储量表层聚集现象显著;各层以及0~ 30 cm土层根系有机碳储量动态表现单峰曲线变化,8月达到峰值;0~ 30cm土层根系有机碳储量表现为围栏禁牧>划区轮牧>自由放牧,各样地间差异显著(P<0.05)。综合分析表明,围栏禁牧有利于短花针茅荒漠草原根系有机碳储量积累,其次为划区轮牧,最差为自由放牧。
英文摘要	The change of root organic carbon storage in 0~10cm, 10~ 20cm, 20~30cm,and 0~30cm soil layer were studied from May to October under different grazing systems, which were continuous grazing (CG),rotational grazing(RG) and non-grazing(NG) in Stipa breviflora desert steppe in Inner Mongolia. The results showed that :1)The root organic carbon storage decreased with soil depth, the root organic carbon storage in 0~10 cm soil layer accounted for 62.38% to 71.87% of root organic carbon storage in 0~30 cm soil layer, it had an obvious surface aggregation phenomenon. 2) The change of root organic carbon storage of each soil layer and 0~30 cm soil layer showed a single peak curve, reached the peak in August. 3) The order of root organic carbon storage in 0~30cm soil layer was NG> RG> CG, and the difference between them were significant (P< 0.05). The comprehensive analysis suggested that the order of reasonable grazing system contributed to root organic carbon accumulation was CK> RG> CG.
中文关键词	放牧制度 ; 荒漠草原 ; 地下生物量 ; 有机碳储量
英文关键词	Grazing systems Desert steppe Underground biomass Organic carbon storage
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:5196312
来源机构	中国农业科学院草原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232043
作者单位	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	胡向敏,侯向阳,陈海军,等. 不同放牧制度下短花针茅荒漠草原根系碳储量动态[J]. 中国农业科学院草原研究所,2014,36(4):13-17.
APA	胡向敏,侯向阳,陈海军,丁勇,运向军,&武自念.(2014).不同放牧制度下短花针茅荒漠草原根系碳储量动态.中国草地学报,36(4),13-17.
MLA	胡向敏,et al."不同放牧制度下短花针茅荒漠草原根系碳储量动态".中国草地学报 36.4(2014):13-17.