干旱区生态环境知识资源中心(Arid): Driving factors of community-level plant functional traits and species distributions in the desert-wetland ecosystem of the Shule River Basin, China

Arid

DOI	10.1002/ldr.3624
	Driving factors of community-level plant functional traits and species distributions in the desert-wetland ecosystem of the Shule River Basin, China
	Chen, Guanguang; Yue, Dongxia; Zhou, Yanyan; Wang, Dong; Wang, Hai; Hui, Cang; Guo, Jianjun
通讯作者	Yue, DX
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
英文摘要	Groundwater, as the limiting resource in arid ecosystems, can have profound effects on the functional structure and distribution of plant communities. However, studies are too few to unveil the impacts of groundwater depth on plant functional traits in such communities. We collected data on vegetation, topography and soil properties from 180 quadrats (60 trees/shrubs and 120 herbaceous) in the desert-wetland ecosystem of Shule River Basin in Northwest China. We measured 10 key community-level functional traits, together with the resource topography (i.e., groundwater depth) and seven soil properties. We found that the increase of groundwater depth significantly reduced community-level specific leaf area and maximum leaf photosynthesis rate, while boosted leaf dry mass content and leaf thickness. However, the leaf phosphorus content remained relatively stable. By contrast, with the increase of groundwater depth, soil carbon, soil nitrogen, soil phosphorus and total dissolved salts first increased but then declined, while soil pH and soil bulk density exhibited the opposite trend. The soil moisture content decreased drastically with the decline of groundwater. The change in groundwater depth, thus, was found the main driver of species distribution in the arid zone, contributing 21.16%, followed by soil K+(9.94%) and soil total nitrogen content (4.9%), as well as a strong interaction of the three (41.7%). Changes in groundwater depth can thus alter the structure and nutrient enrichment of the soil, which in turn affects the distribution of vegetation through water-soil-plant interactions.
英文关键词	driving factors groundwater depth plant functional traits soil properties species distribution
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000562755500001
WOS关键词	LOWER REACHES ; TAMARIX-RAMOSISSIMA ; RIPARIAN VEGETATION ; SEMIARID REGIONS ; SOIL PROPERTIES ; ORGANIC-MATTER ; LEAF STRUCTURE ; TARIM RIVER ; NUTRIENT ; DROUGHT
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328180
作者单位	[Chen, Guanguang; Yue, Dongxia; Zhou, Yanyan; Wang, Dong] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Wang, Hai] Dunhuang Xihu Natl Nat Reserve Adm, Jiuquan, Peoples R China; [Hui, Cang] Stellenbosch Univ, Ctr Invas Biol, African Inst Math Sci, Dept Math Sci, Matieland, South Africa; [Guo, Jianjun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, Key Lab Desert & Desertificat, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Chen, Guanguang,Yue, Dongxia,Zhou, Yanyan,et al. Driving factors of community-level plant functional traits and species distributions in the desert-wetland ecosystem of the Shule River Basin, China[J]. 兰州大学.
APA	Chen, Guanguang.,Yue, Dongxia.,Zhou, Yanyan.,Wang, Dong.,Wang, Hai.,...&Guo, Jianjun.
MLA	Chen, Guanguang,et al."Driving factors of community-level plant functional traits and species distributions in the desert-wetland ecosystem of the Shule River Basin, China".LAND DEGRADATION & DEVELOPMENT