干旱区生态环境知识资源中心(Arid): Spatial non-stationarity effects of driving factors on soil respiration in an arid desert region

Arid

DOI	10.1016/j.catena.2021.105617
	Spatial non-stationarity effects of driving factors on soil respiration in an arid desert region
	Wang, Jinlong; Teng, Dexiong; He, Xuemin; Qin, Lu; Yang, Xiaodong; Lv, Guanghui
通讯作者	Lv, GH (corresponding author), Xinjiang Univ, Coll Resources & Environm Sci, Educ Minist, Key Lab Oasis Ecol, 666 Shengli Rd, Urumqi 830046, Xinjiang, Peoples R China.
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2021
卷号	207
英文摘要	Soil respiration (Rs) has significant spatial changes in terrestrial ecosystems, especially in arid areas where ecological factors and vegetation distribution have obvious patches. Despite growing interest regarding the variation of Rs and its driving factors, most studies have ignored the spatial heterogeneity in the relationship between Rs and driving factors. Sampling plots (100 m x 100 m) were arranged along a vertical transect from the river including the three habitat types of river bank (RB), transitional zone (TZ), and desert margin (DM) in arid area of northwest China. The Rs, soil microclimate (soil temperature and soil water content), and soil nutrients of different habitats were synchronously monitored. Geostatistics and geographically weighted regression (GWR) methods were used to evaluate the spatial variability of Rs and its relationship with driving factors. The mean value of Rs in RB (0.29 +/- 0.25 mu mol m(-2) s(-1)) was significantly higher than that in TZ (0.18 +/- 0.10 mu mol m(-2) s(-1)) and DM (0.12 +/- 0.11 mu mol m(-2) s(-1)). The degree of spatial dependence of Rs in RB was higher than that in TZ, and the spatial structure of Rs was not detected in DM. The GWR model can clearly reflect significant spatial differences in the effects of driving factors on Rs. Soil microclimate, total nitrogen, and soil pH had a strong influence on the spatial variation of Rs in RB. Soil microclimate, ammonium nitrogen, nitrate nitrogen, available phosphorus, and organic matter had strong effects on the spatial variation of Rs in TZ, and soil microclimate, total phosphorus, and organic matter had stronger effects on the spatial variation of Rs in DM. The results indicate that the GWR model can reveal the complex spatial relationship between Rs and driving factors in detail, and provide a new direction for exploring the spatial heterogeneity of Rs.
英文关键词	Soil CO2 efflux Spatial pattern Spatial heterogeneity Semivariogram model Geographically weighted regression
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703268900042
WOS关键词	GEOGRAPHICALLY WEIGHTED REGRESSION ; CO2 EFFLUX ; LITTER DECOMPOSITION ; HETEROTROPHIC RESPIRATION ; MOISTURE AVAILABILITY ; TEMPORAL VARIATION ; WATER-QUALITY ; NORWAY SPRUCE ; MIXED FOREST ; RAIN-FOREST
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362807
作者单位	[Wang, Jinlong; Teng, Dexiong; He, Xuemin; Lv, Guanghui] Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Xinjiang, Peoples R China; [Wang, Jinlong; Teng, Dexiong; He, Xuemin; Lv, Guanghui] Xinjiang Univ, Educ Minist, Key Lab Oasis Ecol, Urumqi 830046, Xinjiang, Peoples R China; [Qin, Lu] Xinjiang Univ, Tourism Coll, Urumqi 830046, Xinjiang, Peoples R China; [Yang, Xiaodong] Ningbo Univ, Dept Geog & Spatial Informat Technol, Ningbo 315211, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jinlong,Teng, Dexiong,He, Xuemin,et al. Spatial non-stationarity effects of driving factors on soil respiration in an arid desert region[J]. 新疆大学,2021,207.
APA	Wang, Jinlong,Teng, Dexiong,He, Xuemin,Qin, Lu,Yang, Xiaodong,&Lv, Guanghui.(2021).Spatial non-stationarity effects of driving factors on soil respiration in an arid desert region.CATENA,207.
MLA	Wang, Jinlong,et al."Spatial non-stationarity effects of driving factors on soil respiration in an arid desert region".CATENA 207(2021).