气候变化领域集成服务门户(CCPortal): Warm- and cold- season grazing affect plant diversity and soil carbon and nitrogen sequestration differently in Tibetan alpine swamp meadows

CCPortal

DOI	10.1007/s11104-020-04573-6
	Warm- and cold- season grazing affect plant diversity and soil carbon and nitrogen sequestration differently in Tibetan alpine swamp meadows
	Tian, Lihua; Bai, Yanfu; Wang, Weiwei; Qu, Guangpeng; Deng, Zhaoheng; Li, Ruicheng; Zhao, Jingxue
通讯作者	Zhao, JX (通讯作者)
发表日期	2021
ISSN	0032-079X
EISSN	1573-5036
起始页码	151
结束页码	164
卷号	458 期号:1-2
英文摘要	Background and aims Seasonal grazing is a traditional grassland management practice in alpine swamp meadows on the Tibetan Plateau, but little information is available on the interactions between plant diversity and soil carbon and nitrogen sequestration in warm- and cold- season grazed alpine swamp meadows. Methods A multisite survey was conducted to investigate the plant characteristics and soil properties of Tibetan alpine swamp meadows under warm-season grazing (WG) and cold-season grazing (CG). Results Our study showed that plant biomass, litter mass, soil water content (SW), soil available nitrogen, soil microbial biomass carbon and nitrogen were significantly lower in the WG meadows than in the CG meadows (P < 0.05). However, plant diversity, species richness and the evenness index tended to increase in the WG meadows. Soil C and N storage were significantly lower in the WG meadows than in the CG meadows (P < 0.01). Grazing-induced changes in SW, plant diversity, plant biomass and litter mass were the major factors resulting in the decrease in soil C and N storage. Conclusions Our results indicate that warm-season grazing is beneficial for species diversity conservation, whereas cold-season grazing is suitable for soil C and N sequestration in alpine swamp meadows. Grazing-induced changes in litter mass greatly contributed to variations in plant diversity and soil C and N storage. In view of the accelerated vegetation and soil degradation in alpine grasslands, periodic warm- and cold-season grazing strategies should be considered to maintain alpine swamp meadow sustainability.
关键词	ECOSYSTEM RESPIRATION MICROBIAL COMMUNITY ORGANIC-MATTER GRASSLANDS EXCLUSION DYNAMICS PLATEAU DEGRADATION VEGETATION STORAGE
英文关键词	Grazing practices; Diversity conservation; Litter mass; Grassland restoration; Alpine grasslands
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS记录号	WOS:000535869300001
来源期刊	PLANT AND SOIL
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260386
推荐引用方式 GB/T 7714	Tian, Lihua,Bai, Yanfu,Wang, Weiwei,et al. Warm- and cold- season grazing affect plant diversity and soil carbon and nitrogen sequestration differently in Tibetan alpine swamp meadows[J]. 中国科学院青藏高原研究所,2021,458(1-2).
APA	Tian, Lihua.,Bai, Yanfu.,Wang, Weiwei.,Qu, Guangpeng.,Deng, Zhaoheng.,...&Zhao, Jingxue.(2021).Warm- and cold- season grazing affect plant diversity and soil carbon and nitrogen sequestration differently in Tibetan alpine swamp meadows.PLANT AND SOIL,458(1-2).
MLA	Tian, Lihua,et al."Warm- and cold- season grazing affect plant diversity and soil carbon and nitrogen sequestration differently in Tibetan alpine swamp meadows".PLANT AND SOIL 458.1-2(2021).