干旱区生态环境知识资源中心(Arid): Alpine Hummocks Drive Plant Diversity and Soil Fertile Islands on the Tibetan Plateau

Arid

DOI	10.1007/s13157-020-01275-8
	Alpine Hummocks Drive Plant Diversity and Soil Fertile Islands on the Tibetan Plateau
	Zhao, Hui; Wei, Da; Yan, Yan; Wu, Jianbo; Wang, Xiaodan
通讯作者	Wang, Xiaodan
来源期刊	WETLANDS
ISSN	0277-5212
EISSN	1943-6246
出版年	2020
卷号	40 期号:5 页码:1217-1227
英文摘要	Earth hummocks are widely distributed in arctic, sub-Arctic and alpine regions and have important roles in determining plant diversity and the nutrient content of soils. We investigated the impact of the spatial heterogeneity on soil properties and plant communities caused by the hummocks on the Tibetan Plateau. The results indicated alpine hummocks created higher plant diversity and soil fertile island patterns under Kobresia Genus communities. Vegetation height, cover, above-ground and underground biomass, species richness and diversity at the top of well-developed hummocks were the significantly higher than those in the inter-hummocks and surrounding flat ground. The soil organic carbon content in surface soil layer (0-50 cm) at the hummock top was 154.6% and 172.3% higher than those in inter-hummock area and the flat ground, respectively. From the developing to well-developed stage, K. littledalei became the dominant population at hummock top instead of K. humilis, and fertile islands gradually formed with higher soil organic carbon and total nitrogen, lower soil moisture and wider soil temperature variation. RDA analysis further indicated the interactions of plant community succession and soil fertile island could create positive feedbacks to nutrient-rich patches.
英文关键词	Alpine hummock Plant community diversity Soil fertile island Micro-topographic heterogeneity
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000520656700002
WOS关键词	EARTH HUMMOCKS ; WOODY-PLANTS ; NEW-ZEALAND ; VEGETATION ; COMMUNITY ; MICROTOPOGRAPHY ; DYNAMICS ; MOUNDS ; DESERT ; THUFUR
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315746
作者单位	Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, 9,Sect 4,Renminnanlu Rd, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Hui,Wei, Da,Yan, Yan,et al. Alpine Hummocks Drive Plant Diversity and Soil Fertile Islands on the Tibetan Plateau[J],2020,40(5):1217-1227.
APA	Zhao, Hui,Wei, Da,Yan, Yan,Wu, Jianbo,&Wang, Xiaodan.(2020).Alpine Hummocks Drive Plant Diversity and Soil Fertile Islands on the Tibetan Plateau.WETLANDS,40(5),1217-1227.
MLA	Zhao, Hui,et al."Alpine Hummocks Drive Plant Diversity and Soil Fertile Islands on the Tibetan Plateau".WETLANDS 40.5(2020):1217-1227.