干旱区生态环境知识资源中心(Arid): Relative contribution of biotic and abiotic factors to stemflow production and funneling efficiency: A long-term field study on a xerophytic shrub species in Tengger Desert of northern China

Arid

DOI	10.1016/j.agrformet.2019.107781
	Relative contribution of biotic and abiotic factors to stemflow production and funneling efficiency: A long-term field study on a xerophytic shrub species in Tengger Desert of northern China
	Zhang, Ya-feng; Wang, Xin-ping; Pan, Yan-xia; Hu, Rui
通讯作者	Zhang, Ya-feng
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2020
卷号	280
英文摘要	Stemflow production has been reported to be influenced by a suite of biotic and abiotic factors. Nevertheless, relative contributions of biotic and abiotic factors to stemflow production and funneling efficiency were largely unclear due to complex interactions among those factors. In this study, stemflow of nine xerophytic shrubs of Caragana korshinskii were measured in nearly nine growing seasons from 2010 to 2018 within a desert area of northern China, accompanying with observing on six biotic variables (shrub morphological attributes) and ten abiotic variables (meteorological conditions). We performed boosted regression trees (BRT) model to evaluate the relative contribution (theta) of each biotic and abiotic variable to stemflow volume (SFv), stemflow percentage (SFp), and funneling ratio (FR), associating with partial dependence plots (PDPs) to visualize the effects of individual explanatory variables on SFv, SFp, and FR, respectively. Generally, we observed that larger shrubs generated more SFv, while had lower SFp and FR. BRT analysis demonstrated that biotic variables outweighed abiotic variables by 1.5-fold as to their contribution to SFv, whereas abiotic variables prevailed for SFp and FR, respectively. Differences in theta between variables for SFv (CV = 146%) were much pronounced than for SFp (CV = 57%) and FR (CV = 26%), with the foremost three influential variables for SFv ranking in descending orders of theta by rainfall amount (33.2%), basal area (20.9%), projected canopy area (15.1%), and that for SFp by projected canopy area (13.2%), rainfall amount (13.0%), and air temperature (11.1%), and that for FR by antecedent dry period (9.1%), rainfall amount (8.4%), and wind speed (8.3%). The quantitative and mechanistic explanations regarding the effects of biotic and abiotic variables on three stemflow parameters from the present study are expected to be applicable to other shrub species within arid and semi-arid ecosystems.
英文关键词	Stemflow Biotic variables Abiotic variables Boosted regression trees Relative contribution
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000525807000018
WOS关键词	DISSOLVED ORGANIC-MATTER ; WATER STORAGE CAPACITY ; RAINFALL CHARACTERISTICS ; SOIL-WATER ; CARAGANA-KORSHINSKII ; OPTICAL-PROPERTIES ; INTERCEPTION LOSS ; TREE ; THROUGHFALL ; FOREST
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/313915
作者单位	Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, 320 Donggang West Rd, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ya-feng,Wang, Xin-ping,Pan, Yan-xia,et al. Relative contribution of biotic and abiotic factors to stemflow production and funneling efficiency: A long-term field study on a xerophytic shrub species in Tengger Desert of northern China[J],2020,280.
APA	Zhang, Ya-feng,Wang, Xin-ping,Pan, Yan-xia,&Hu, Rui.(2020).Relative contribution of biotic and abiotic factors to stemflow production and funneling efficiency: A long-term field study on a xerophytic shrub species in Tengger Desert of northern China.AGRICULTURAL AND FOREST METEOROLOGY,280.
MLA	Zhang, Ya-feng,et al."Relative contribution of biotic and abiotic factors to stemflow production and funneling efficiency: A long-term field study on a xerophytic shrub species in Tengger Desert of northern China".AGRICULTURAL AND FOREST METEOROLOGY 280(2020).