干旱区生态环境知识资源中心(Arid): Different types of biocrusts affect plant communities by changing the microenvironment and surface soil nutrients in the Qinghai-Tibetan Plateau

Arid

DOI	10.1080/15324982.2019.1683915
	Different types of biocrusts affect plant communities by changing the microenvironment and surface soil nutrients in the Qinghai-Tibetan Plateau
	Xu, Hengkang 1; Zhang, Yingjin 1; Kang, Binyue 1; Qin, Fuwen 1; Liu, Xiaoli 1; Zhou, Huakun 2; Shao, Xinqing 1
通讯作者	Shao, Xinqing
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2020
卷号	34 期号:3 页码:306-318
英文摘要	Biocrusts (biological soil crusts), which impact plant community characteristics and soil properties, are an important feature of soil surface in terrestrial ecosystem and called ecosystem engineers in arid and semi-arid habitats. The Qinghai-Tibet Plateau is located in arid and semi-arid regions, and the information on how biocrusts play a role in this ecosystem is still rare. In this study, the effects of different types of biocrusts (lichen-moss crusts, moss crusts, and bare ground as control) on plant diversity and soil physicochemical properties were evaluated and the key environmental factors associated with biocrust characteristics were analyzed in alpine steppe. The results showed that biocrusts affected the structure and diversity of plant community. The lichen-moss crusts were linked with lower plant diversity and plant species richness in degraded alpine steppe in the Qinghai-Tibetan Plateau. The cover of lichen crusts was positively correlated with plant cover while the cover and thickness of moss crusts were negatively correlated with plant cover. Moss crusts significantly reduced soil temperature and soil moisture content. Biocrusts significantly reduced the pH values of soil surface layer (0-1 cm) and deeper layer (5-10 cm). Soil total C (78.10 +/- 6.53 g/kg), and total N (5.05 +/- 0.21 g/kg) were highest in the soil surface layer (0-1 cm) where lichen-moss crusts were present. Our results indicated that the different types of biocrusts affect plant communities by changing the microenvironment and soil nutrients in the Qinghai-Tibetan Plateau. Further studies on the relationships between soil, biocrusts, and plants on a larger scale in the Qinghai-Tibetan Plateau are necessary.
英文关键词	Lichen-moss crusts moss crusts plant diversity Qinghai-Tibetan Plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000494604300001
WOS关键词	CRYPTOGAMIC CRUSTS ; BRYOPHYTES ; NITROGEN ; CARBON ; ESTABLISHMENT ; PRODUCTIVITY ; RESPONSES ; IMPACTS ; LICHENS ; CLIMATE
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
EI主题词	2019-11-05
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310760
作者单位	1.China Agr Univ, Coll Grassland Sci & Technol, Beijing, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Are Qinghai Prov, Xining, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hengkang,Zhang, Yingjin,Kang, Binyue,et al. Different types of biocrusts affect plant communities by changing the microenvironment and surface soil nutrients in the Qinghai-Tibetan Plateau[J]. 中国农业大学,2020,34(3):306-318.
APA	Xu, Hengkang.,Zhang, Yingjin.,Kang, Binyue.,Qin, Fuwen.,Liu, Xiaoli.,...&Shao, Xinqing.(2020).Different types of biocrusts affect plant communities by changing the microenvironment and surface soil nutrients in the Qinghai-Tibetan Plateau.ARID LAND RESEARCH AND MANAGEMENT,34(3),306-318.
MLA	Xu, Hengkang,et al."Different types of biocrusts affect plant communities by changing the microenvironment and surface soil nutrients in the Qinghai-Tibetan Plateau".ARID LAND RESEARCH AND MANAGEMENT 34.3(2020):306-318.