干旱区生态环境知识资源中心(Arid): 放牧对小针茅荒漠草原枯落物及植被生产力的影响

Arid

	放牧对小针茅荒漠草原枯落物及植被生产力的影响
其他题名	The influence of grazing intensities on litter storage and vegetation productivity of Stipa klemenzii desert steppe
	姚国征 1; 高永1 ; 杨婷婷 2; 丁勇 2; 马士龙 3
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2016
卷号	30 期号:10 页码:93-97
中文摘要	在内蒙古苏尼特右旗荒漠草原试验示范基地,设置不同放牧强度和围栏对照5个处理,于2014年的5~10月生长季测定不同放牧强度下小针茅草地枯落物的蓄积量、蓄积动态、地上生物量和地下生物量月动态,并探讨了小针茅荒漠草原枯落物蓄积量及地上、地下生物量对放牧强度的响应。研究结果表明:1)围封条件下小针茅群落枯落物蓄积量最大,平均值为29.22g/m~2;随着放牧强度的增加枯落物蓄积量减少;极重度放牧条件下小针茅群落枯落物蓄积量比围封对照区减少了57.77%。2)5-10月生长季,小针茅群落枯落物蓄积量在不同放牧强度下均随时间呈"V"型的变化规律。3)小针茅群落地上和地下生物量均随着放牧强度的增加而减少,地下根系主要分布在0~10cm深度土层中,占0-30cm地下生物量的57.23%~66.83%,该比例随着放牧强度的增加而减少。
英文摘要	In desert steppe trial bases of Sonid Youqi in Inner Mongolia,5 different treatments were set up which are CK,light grazing,moderate grazing,heavy grazing and extremely heavy grazing. The litter storage dynamics of Stipa klemenzii steppe under different grazing intensities were measured from May to September in 2014. The effects of litter storage on vegetation and soil were analyzed. The results showed that: ( 1) The amount of litter storage in CK was the most,with an average of 29. 22g /m2,litter storage reduced with the increase of grazing intensity,litter storage under extremely heavy grazing decreased by 57. 77% than that of CK. ( 2) The litter storage of Stipa klemenzii steppe showed significant fluctuations with seasons,which showed the principle of "V" type,the peak value appeared in October. ( 3) With the increase of grazing intensity,the above and below ground biomass decreased.( 4) Below ground biomass mainly distributed in soil layer of 0 ~ 10cm,which occupied 57. 23% ~ 66. 83% of below ground biomass in soil layer of 0 ~30cm,this ratio declined with the increasing of grazing intensity.
中文关键词	小针茅草原 ; 枯落物蓄积量 ; 生物量 ; 放牧强度
英文关键词	Stipa klemenzii steppe litter storage biomass grazing intensity
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:5813834
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234394
作者单位	1.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010018, 中国; 2.中国农业科学院草原研究所, 呼和浩特, 内蒙古 010010, 中国; 3.中水北方勘测设计研究有限责任公司, 天津 300222, 中国
推荐引用方式 GB/T 7714	姚国征,高永,杨婷婷,等. 放牧对小针茅荒漠草原枯落物及植被生产力的影响[J]. 内蒙古农业大学,2016,30(10):93-97.
APA	姚国征,高永,杨婷婷,丁勇,&马士龙.(2016).放牧对小针茅荒漠草原枯落物及植被生产力的影响.干旱区资源与环境,30(10),93-97.
MLA	姚国征,et al."放牧对小针茅荒漠草原枯落物及植被生产力的影响".干旱区资源与环境 30.10(2016):93-97.