干旱区生态环境知识资源中心(Arid): Factors that alter the relative importance of abiotic and biotic drivers on the fertile island in a desert-oasis ecotone

Arid

DOI	10.1016/j.scitotenv.2019.134096
	Factors that alter the relative importance of abiotic and biotic drivers on the fertile island in a desert-oasis ecotone
	Wang, Hengfang 1; Cai, Yan 1; Yang, Qi 1; Gong, Yanming 2; Lv, Guanghui1
通讯作者	Lv, Guanghui
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2019
卷号	697
英文摘要	Dryland vegetation forms a fertile island effect due to water and nutrient retention. However, there has been little research on the mechanism underlying C-, N-, P-accumulation and overall fertile island at the community level. We therefore presented the systematic investigation on this issue through the survey in desert-oasis ecotone. The survey covering the vegetation composition, plant height, crown area and vegetation cover. The main parameters measured included soil moisture, soil pH, soil salinity and nine soil indicators related to C, N and P cycling. The results revealed that the effect of fertile island was directly relevant to either soil moisture or pH. This effect was more obvious with the increase of soil moisture and the decrease of pH value. In addition, the plant diversitywas believed to be the main biotic driven factor for fertile island. Furthermore, the results also indicated that both the soil moisture and plant diversity would accelerate the accumulation of P and N, while the pH played the negative effect. The other main observation obtained was that the vegetation cover had positive effect on accumulation of C. As a result, the mechanisms related to drought and salinization could drive the difference of C-, N- and P-accumulation. The main findings also provided an effective reference to better understand the mechanism of fertile island and its desertification procedure in desert-oasis ecotone. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	Functional trait Multiple threshold approach Resource accumulation Soil properties
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000499668600037
WOS关键词	ECOSYSTEM MULTIFUNCTIONALITY ; SPECIES RICHNESS ; CLIMATE-CHANGE ; SOIL ; HETEROGENEITY ; BIODIVERSITY ; GRASSLAND ; PATTERNS ; DRYLANDS ; IMPACTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
EI主题词	2019-12-20
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311864
作者单位	1.Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Peoples R China; 2.Chinese Acad Sci, Key Lab Biogeog & Bioresources Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830047, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hengfang,Cai, Yan,Yang, Qi,et al. Factors that alter the relative importance of abiotic and biotic drivers on the fertile island in a desert-oasis ecotone[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2019,697.
APA	Wang, Hengfang,Cai, Yan,Yang, Qi,Gong, Yanming,&Lv, Guanghui.(2019).Factors that alter the relative importance of abiotic and biotic drivers on the fertile island in a desert-oasis ecotone.SCIENCE OF THE TOTAL ENVIRONMENT,697.
MLA	Wang, Hengfang,et al."Factors that alter the relative importance of abiotic and biotic drivers on the fertile island in a desert-oasis ecotone".SCIENCE OF THE TOTAL ENVIRONMENT 697(2019).