气候变化领域集成服务门户(CCPortal): Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau

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DOI	10.1016/j.catena.2020.104955
	Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau
	Dai, Licong; Fu, Ruiyu; Guo, Xiaowei; Du, Yangong; Lin, Li; Zhang, Fawei; Li, Yikang; Cao, Guangmin
通讯作者	Du, YG ; Cao, GM (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Restorat Ecol Cold Reg, Xining 810001, Peoples R China.
发表日期	2021
ISSN	0341-8162
EISSN	1872-6887
卷号	197
英文摘要	Grazing management is known to be one of the most important strategies for regulating plant community structure and soil carbon and nitrogen content for alpine meadows, but very few studies about the effect of long-term grazing management on soil and plant characteristics. In this study, biomass and soil samples were collected during the grazing and grazing-exclusion periods to determine the biomass and soil properties, two-way ANOVA was used to examine the effects of grazing management on plant and soil properties. Our results show that the aboveground biomass was reduced during the grazing period but increased during the grazing exclusion period. Furthermore, the response of plant functional groups to grazing management was different. Whereas the belowground biomass increased during the grazing period but decreased during the grazing-exclusion period. Interestingly, the 0-10 cm and 30-40 cm soil organic carbon (SOC) increased significantly during grazing and grazing exclusion period, respectively. The 0-30 cm total nitrogen (TN) and 0-40 cm available nitrogen (AN) increased significantly during the grazing-exclusion period but showed no significant change during the grazing period. The 0-40 cm SOC and TN were both significantly affected by the year, with grazing management ex- erting only a marginal effect on SOC. 0-40 cm AN was significantly affected by grazing management and the interaction between year and grazing management. Our results suggest that long-term grazing exclusions could greatly improve both above vegetation biomass and soil condition such as soil carbon and nitrogen content.
关键词	BELOW-GROUND BIOMASS SOIL ORGANIC-CARBON CLIMATE-CHANGE GRASSLAND SEQUESTRATION IMPACTS DECOMPOSITION PRODUCTIVITY COMMUNITIES ECOSYSTEMS
英文关键词	Alpine meadow; Grazing management; Grazing exclusion; Soil property; Vegetation
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000597208600011
来源期刊	CATENA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253661
作者单位	[Dai, Licong; Guo, Xiaowei; Du, Yangong; Lin, Li; Zhang, Fawei; Li, Yikang; Cao, Guangmin] Chinese Acad Sci, Northwest Inst Plateau Biol, Qinghai Prov Key Lab Restorat Ecol Cold Reg, Xining 810001, Peoples R China; [Dai, Licong; Guo, Xiaowei; Du, Yangong; Lin, Li; Zhang, Fawei; Li, Yikang; Cao, Guangmin] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China; [Fu, Ruiyu] Nanning Normal Univ, Sch Geog & Planning, Nanning 530001, Peoples R China; [Dai, Licong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Dai, Licong,Fu, Ruiyu,Guo, Xiaowei,et al. Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2021,197.
APA	Dai, Licong.,Fu, Ruiyu.,Guo, Xiaowei.,Du, Yangong.,Lin, Li.,...&Cao, Guangmin.(2021).Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau.CATENA,197.
MLA	Dai, Licong,et al."Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau".CATENA 197(2021).