干旱区生态环境知识资源中心(Arid): The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran

Arid

DOI	10.1007/s12517-020-05901-x
	The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran
	Joneidi, Hamed; Azizi, Nahid; Osati, Khaled; Bandak, Isa
通讯作者	Joneidi, H
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:18
英文摘要	This research was conducted to monitor changes in canopy cover of typical species during a 10-year period in the part of arid rangelands, to find out the relationship between two important climate variables (precipitation and temperature) and canopy cover changes. For that reason, canopy cover percentages of six dominant perennials and all annual plant species combined were measured during a 10-year period at phenological maturity of plant in thirty 2 m x 2 m plots which were placed along two 250-m transect lines. The results demonstrated that the maximum canopy cover for water year 2006-2007 (wet year) and the minimum value for water year 2012-2013 (drought) were 15 and 5.5%, respectively. The canopy cover was modeled by linear regression in which precipitation and temperature variables were considered independent variables. April precipitation explained 65% of changes in the canopy cover percentage ofArtemisia sieberiat 95% confidence level (RRMSE = 0.26 and MAE = 0.49). The best simple linear regression models for estimating canopy cover percentages ofStipa barbataandZygophyllum eurypterumcorresponded to cumulative 4-month precipitation from March to June and March precipitation respectively, representing 77% (at 99% confidence level) and 67% (at 95% confidence level) of changes correspondingly. Considering the dominance ofA. sieberi,S. barbata, andZ. eurypterumin floristic composition of the study area, it can be concluded that most changes in canopy cover of the studied rangeland are predicted by variability of precipitation during growing seasons.
英文关键词	Canopy cover Climate variability Precipitation Linear regression
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000568688700001
WOS关键词	IMPACTS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326206
作者单位	[Joneidi, Hamed; Azizi, Nahid; Osati, Khaled] Univ Kurdistan, Fac Nat Resources, Sanandaj, Iran; [Joneidi, Hamed; Osati, Khaled] Univ Kurdistan, Kurdistan Studies Inst, Sanandaj, Iran; [Bandak, Isa] Univ Tehran, Tehran, Iran
推荐引用方式 GB/T 7714	Joneidi, Hamed,Azizi, Nahid,Osati, Khaled,et al. The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran[J],2020,13(18).
APA	Joneidi, Hamed,Azizi, Nahid,Osati, Khaled,&Bandak, Isa.(2020).The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran.ARABIAN JOURNAL OF GEOSCIENCES,13(18).
MLA	Joneidi, Hamed,et al."The effects of precipitation variability on the canopy cover of forage species in arid rangelands, Iran".ARABIAN JOURNAL OF GEOSCIENCES 13.18(2020).