Multiscale remote-sensing retrieval in the evapotranspiration of Haloxylon ammodendron in the Gurbantunggut desert, China

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 海岸带信息集成与综合管理实验室

	Multiscale remote-sensing retrieval in the evapotranspiration of Haloxylon ammodendron in the Gurbantunggut desert, China
	Cao, Xiaoming 1; Wang, Juanle 1; Chen, Xi 2; Gao, Zhiqiang3 ; Yang, Fei 1; Shi, Jiankang 4
刊名	ENVIRONMENTAL EARTH SCIENCES
	2013-07-01
卷号	69 期号:5 页码:1549-1558
关键词	Evapotranspiration Scale Remote Sensing Haloxylon Ammodendron The Arid Areas
ISSN号	1866-6280
通讯作者	Wang, JL (reprint author), Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China. caoxm1027@gmail.com ; wangjl@igsnrr.ac.cn ; chenxi@ms.xjb.ac.cn ; gaozq@igsnrr.ac.cn ; yangfei@lreis.ac.cn ; stanking16888@163.com
产权排序	[Cao, Xiaoming; Wang, Juanle; Yang, Fei] Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; [Chen, Xi] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China; [Gao, Zhiqiang] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Shi, Jiankang] Hainan Res Acad Environm Sci, Haikou, Peoples R China
文献子类	Article
英文摘要	Transpiration, an essential component of surface evapotranspiration, is particularly important in the research of surface evapotranspiration in arid areas. The paper explores the spectral information of the arid vegetal evapotranspiration from a semi-empirical perspective by the measured data and the up-scaling method. The paper inverted the transpiration of Haloxylon ammodendron at the canopy, pixel and regional scales in the southern edge of the Gurbantunggut desert in Xinjiang, China. The results are as follows: at the canopy scale, the optimal exponential model of the sap flow rate based on the hyperspectrum is y = 0.0015e(3.8922x) , R (2) = 0.806. At the pixel scale, there was a good linear relationship between the sap flow and the SR index, with a relationship of y = -1197.38x (3) + 1048.43x (2) - 305.47x + 455.15, R (2) = 0.845. At the regional scale, based on the optimal exponential model and the EO-1 Hyperion remote-sensing data, the transpiration of the study area was inverted. Comparing the results of the SEBAL and SEBS models, the errors of the simulation results were 7.78 and 8.80 %. The paper made full use of the knowledge flow at different scales, bridging the scale difference in canopy and remote-sensing images to avoid the information bottleneck in the up-scaling. However, there are many constraints in the data acquirement, the efficiency of the models, the endmembers determination, the temporal-spatial up-scaling, and the accuracy assessment, which would be improved in future studies.; Transpiration, an essential component of surface evapotranspiration, is particularly important in the research of surface evapotranspiration in arid areas. The paper explores the spectral information of the arid vegetal evapotranspiration from a semi-empirical perspective by the measured data and the up-scaling method. The paper inverted the transpiration of Haloxylon ammodendron at the canopy, pixel and regional scales in the southern edge of the Gurbantunggut desert in Xinjiang, China. The results are as follows: at the canopy scale, the optimal exponential model of the sap flow rate based on the hyperspectrum is y = 0.0015e(3.8922x) , R (2) = 0.806. At the pixel scale, there was a good linear relationship between the sap flow and the SR index, with a relationship of y = -1197.38x (3) + 1048.43x (2) - 305.47x + 455.15, R (2) = 0.845. At the regional scale, based on the optimal exponential model and the EO-1 Hyperion remote-sensing data, the transpiration of the study area was inverted. Comparing the results of the SEBAL and SEBS models, the errors of the simulation results were 7.78 and 8.80 %. The paper made full use of the knowledge flow at different scales, bridging the scale difference in canopy and remote-sensing images to avoid the information bottleneck in the up-scaling. However, there are many constraints in the data acquirement, the efficiency of the models, the endmembers determination, the temporal-spatial up-scaling, and the accuracy assessment, which would be improved in future studies.
学科主题	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
URL标识	查看原文
WOS关键词	ENERGY BALANCE ALGORITHM ; EVAPO-TRANSPIRATION ; CANOPY REFLECTANCE ; EDDY COVARIANCE ; PENMAN-MONTEITH ; HEAT FLUXES ; WATER-USE ; VEGETATION ; FOREST ; MODEL
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
WOS记录号	WOS:000320327900006
资助机构	Public Welfare Special Program, Ministry of Environmental Protection of the People's Republic of China [201109075]; Research Project of Public Service Sectors from the Ministry of Environment Protection in China [201209030-3]; land use spatial and temporal changes and its environmental effects in China; Ministry of Science [2011FY110400]; National Natural Science Foundation of China [41171334, 41071278]
公开日期	2013-08-15
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6515]
专题	烟台海岸带研究所_海岸带信息集成与综合管理实验室
作者单位	1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 4.Hainan Res Acad Environm Sci, Haikou, Peoples R China
推荐引用方式 GB/T 7714	Cao, Xiaoming,Wang, Juanle,Chen, Xi,et al. Multiscale remote-sensing retrieval in the evapotranspiration of Haloxylon ammodendron in the Gurbantunggut desert, China[J]. ENVIRONMENTAL EARTH SCIENCES,2013,69(5):1549-1558.
APA	Cao, Xiaoming,Wang, Juanle,Chen, Xi,Gao, Zhiqiang,Yang, Fei,&Shi, Jiankang.(2013).Multiscale remote-sensing retrieval in the evapotranspiration of Haloxylon ammodendron in the Gurbantunggut desert, China.ENVIRONMENTAL EARTH SCIENCES,69(5),1549-1558.
MLA	Cao, Xiaoming,et al."Multiscale remote-sensing retrieval in the evapotranspiration of Haloxylon ammodendron in the Gurbantunggut desert, China".ENVIRONMENTAL EARTH SCIENCES 69.5(2013):1549-1558.