Arid
DOI10.1016/j.ecolind.2022.109288
Spatial variation in the direct and indirect effects of plant diversity on soil respiration in an arid region
Wang, Jinlong; Teng, Dexiong; He, Xuemin; Li, Zhoukang; Chen, Yudong; Ma, Wen; Li, Wenjing; Wang, Shiyun; Liu, Feiyi; Lv, Guanghui
通讯作者Lv, GH
来源期刊ECOLOGICAL INDICATORS
ISSN1470-160X
EISSN1872-7034
出版年2022
卷号142
英文摘要Soil respiration (Rs) is a key ecosystem function that controls the terrestrial energy balance and element cycling. Quantifying how plant diversity affects Rs is critical for predicting the impact of global plant diversity loss on ecosystem function. However, it is unclear how soil factors and plant diversity are spatially interrelated under natural environmental gradients, and how plant diversity affects the spatial variation of Rs on the basis of soil factors. Our objectives were to quantify the direction and magnitude of direct and indirect effects of plant diversity on Rs. We assessed spatial variability in the relationships between soil factors (soil chemistry and microclimate), multiple dimensions of plant diversity (taxonomic, functional, and phylogenetic diversity), and Rs using a new combination of geographically weighted regression and structural equation modeling based on survey data from three plots (river bank, transitional zone, and desert margin plots) along an environmental gradient in northwest China. Reduced plant diversity had a negative impact on Rs. However, when the effects of soil factors on Rs and spatial non-stationarity were considered simultaneously, the relationship between plant diversity and Rs changed in magnitude and direction. From the river bank to the desert margin, the positive effect of taxonomic and functional diversity on Rs gradually weakened, while the effect of phylogenetic diversity on Rs changed from a negative to a positive effect. Plant diversity and soil factors together explained 55%-75% of the spatial variation in Rs. Among them, the contribution of plant diversity to the spatial variation of Rs gradually decreased from the river bank to the desert margin, while the contribution of soil factors gradually increased. Functional diversity (17.39%-18.93%) and phylogenetic diversity (10.75%-19.53%) better explained the spatial variability of Rs compared with taxonomic diversity (2.67%-6.01%). The results provide strong evidence that plant diversity, especially functional and phylogenetic diversity, is a key driver of Rs, expanding our understanding of the relationship between plant diversity and Rs. These findings more accurately reveal the changing characteristics of carbon dynamics in desert ecosystems, and provide a methodological framework for studying the spatial variability of the relationship between plant diversity and ecosystem function.
英文关键词Ecosystem function Geographically weighted regression Non-stationarity SoilCO2 emissions Spatial heterogeneity Structural equation modeling
类型Article
语种英语
开放获取类型gold
收录类别SCI-E
WOS记录号WOS:000861250500005
WOS关键词FUNCTIONAL DIVERSITY ; PHYLOGENETIC DIVERSITY ; SPECIES RICHNESS ; ECOSYSTEM PRODUCTIVITY ; LITTER DECOMPOSITION ; CO2 EFFLUX ; R PACKAGE ; BIODIVERSITY ; COMMUNITIES ; TRAITS
WOS类目Biodiversity Conservation ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/392336
推荐引用方式
GB/T 7714
Wang, Jinlong,Teng, Dexiong,He, Xuemin,et al. Spatial variation in the direct and indirect effects of plant diversity on soil respiration in an arid region[J],2022,142.
APA Wang, Jinlong.,Teng, Dexiong.,He, Xuemin.,Li, Zhoukang.,Chen, Yudong.,...&Lv, Guanghui.(2022).Spatial variation in the direct and indirect effects of plant diversity on soil respiration in an arid region.ECOLOGICAL INDICATORS,142.
MLA Wang, Jinlong,et al."Spatial variation in the direct and indirect effects of plant diversity on soil respiration in an arid region".ECOLOGICAL INDICATORS 142(2022).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Jinlong]的文章
[Teng, Dexiong]的文章
[He, Xuemin]的文章
百度学术
百度学术中相似的文章
[Wang, Jinlong]的文章
[Teng, Dexiong]的文章
[He, Xuemin]的文章
必应学术
必应学术中相似的文章
[Wang, Jinlong]的文章
[Teng, Dexiong]的文章
[He, Xuemin]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。