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	Methods for modelling of temporal and spatial distribution of air temperature at landscape scale in the southern Qilian mountains, China
	Zhao, CY; Nan, ZR; Cheng, GD
刊名	ECOLOGICAL MODELLING
	2005-11-25
卷号	189期号:1-2页码:209-220
关键词	surface air temperature linear regression geostatistical methods Qilian mountains landscape scale
ISSN号	0304-3800
DOI	10.1016/j.ecolmodel.2005.03.016
通讯作者	Zhao, CY(nanzhr@lzb.ac.cn)
英文摘要	Understanding temporal and spatial distribution of surface air temperature (SAT) at the landscape scale is essential in assessing the potential ecological conditions for ecological restoration and in making decisions for regional management in the Qilian mountains, northwest China. Based on the measurement of air temperature, this study developed a linear regression relationship between the monthly mean SAT and elevation and locational/topographic factors. On average over the year, the model had a higher accuracy to predict SAT in the southern Qilian mountainous terrain of the Heihe River Basin. The study also compared the built linear regression model with geostatistical methods (i.e., ordinary kriging, splines and inverse distance weight), generally, the predictions errors obtained by the geostatistical methods were larger than that by regression method. The worst results were produced by spline. It was noteworthy that for several months (i.e. growing seasons) ordinary kriging yielded smaller prediction errors than the linear regression of temperature against elevation and locational/topographic factors did. We selected the OK method to estimate the SAT in the growing seasons, because accurately estimating surface air temperature during the ecologically meaningful time period was very important to model future ecological processes. Modeled SAT increased from northeast to southwest with highest value occurring in the Yinglou gorge, the outlet of Heihe River in the study area. Temporally, highest SAT value, ranging from 9.2 to 18.7 degrees C, appeared in the July, and the lowest SAT value, from 3.3 to 13.3 degrees C, was seen in May. (c) 2005 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	SOLAR-RADIATION ; SURFACE-TEMPERATURE ; RIVER BASIN ; TERRAIN ; PRECIPITATION ; ELEVATION ; RAINFALL ; GIS ; EVAPOTRANSPIRATION ; INTERPOLATION
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000233374300012
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2555660
专题	寒区旱区环境与工程研究所
通讯作者	Zhao, CY
作者单位	1.CAS, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Dept Environm Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhao, CY,Nan, ZR,Cheng, GD. Methods for modelling of temporal and spatial distribution of air temperature at landscape scale in the southern Qilian mountains, China[J]. ECOLOGICAL MODELLING,2005,189(1-2):209-220.
APA	Zhao, CY,Nan, ZR,&Cheng, GD.(2005).Methods for modelling of temporal and spatial distribution of air temperature at landscape scale in the southern Qilian mountains, China.ECOLOGICAL MODELLING,189(1-2),209-220.
MLA	Zhao, CY,et al."Methods for modelling of temporal and spatial distribution of air temperature at landscape scale in the southern Qilian mountains, China".ECOLOGICAL MODELLING 189.1-2(2005):209-220.

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