Correlating between evapotranspiration and precipitation provides insights into Xilingol grassland eco-engineering at larger scale

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Correlating between evapotranspiration and precipitation provides insights into Xilingol grassland eco-engineering at larger scale
	Zhang, SW; Shen, R; Zhao, HB; Liu, TX; Shao, HB; Zhang, ZC
刊名	ECOLOGICAL ENGINEERING
	2015-11-01
卷号	84 页码:100-103
关键词	Grassland eco-engineering Grass evapotranspiration Dual crop coefficient Soil water content Precipitation variation
ISSN号	0925-8574
通讯作者	Shao, HB (reprint author), Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China. hbzhao04@163.com ; shaohongbochu@126.com
产权排序	[Zhang Shengwei; Shen Rui; Liu Tingxi; Zhang Zichang] Inner Mongolia Agr Univ, Water Conservancy & Civil Engn Coll, Hohhot 010018, Peoples R China; [Zhao Hongbin] Inner Mongolia Agr Univ, Coll Life Sci, Hohhot 010018, Peoples R China; [Shao Hongbo] Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China; [Shao Hongbo] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioresources Utilizat, Yantai 264003, Peoples R China
中文摘要	The Xilingol Grassland in Northern China is the largest grassland ecosystem of Inner Mongolia and plays an important role in the local ecosystem. However, grassland desertification and degradation are quite severe in this area. Therefore, we simulated the daily actual evapotranspiration (ET) and soil water content in a representative area of the Xilingol Grassland, West Ujimqin Balaguer River basin, during the grass growth period by using the dual crop coefficient model. In addition, we compared the simulation results with actual data and found that the R-2 value between the actual measurement data and simulation data for soil water content was 0.662 with an error of 4.14%. The simulated total ET during the entire growth period in 2013 was 332.41 mm, including 215.13 mm grassland transpiration (64.7%) and 117.28 mm soil evaporation. Then we randomly selected precipitation and ET values for different growth periods for analysis. The results showed that the absolute R values are all higher than 0.5, which indicates that variations in ET are highly correlated with precipitation over time. By reducing the precipitation to half the actual values, the model predicts 257.71 mm ET (22.5% less than the value in natural conditions), 176.84 mm transpiration (17.8% less than the value in natural conditions), and 80.87 mm soil evaporation (31% less than the value in natural conditions). By assuming that the precipitation was reduced by half, the model predicts 274.89 mm ET (17.3% less than the actual value), 190.05 mm grassland transpiration (11.7% less than the actual value), and 84.85 mm soil evaporation (27.7% less than the actual value). (C) 2015 Elsevier B.V. All rights reserved.
英文摘要	The Xilingol Grassland in Northern China is the largest grassland ecosystem of Inner Mongolia and plays an important role in the local ecosystem. However, grassland desertification and degradation are quite severe in this area. Therefore, we simulated the daily actual evapotranspiration (ET) and soil water content in a representative area of the Xilingol Grassland, West Ujimqin Balaguer River basin, during the grass growth period by using the dual crop coefficient model. In addition, we compared the simulation results with actual data and found that the R-2 value between the actual measurement data and simulation data for soil water content was 0.662 with an error of 4.14%. The simulated total ET during the entire growth period in 2013 was 332.41 mm, including 215.13 mm grassland transpiration (64.7%) and 117.28 mm soil evaporation. Then we randomly selected precipitation and ET values for different growth periods for analysis. The results showed that the absolute R values are all higher than 0.5, which indicates that variations in ET are highly correlated with precipitation over time. By reducing the precipitation to half the actual values, the model predicts 257.71 mm ET (22.5% less than the value in natural conditions), 176.84 mm transpiration (17.8% less than the value in natural conditions), and 80.87 mm soil evaporation (31% less than the value in natural conditions). By assuming that the precipitation was reduced by half, the model predicts 274.89 mm ET (17.3% less than the actual value), 190.05 mm grassland transpiration (11.7% less than the actual value), and 84.85 mm soil evaporation (27.7% less than the actual value). (C) 2015 Elsevier B.V. All rights reserved.
研究领域[WOS]	Environmental Sciences & Ecology ; Engineering
关键词[WOS]	INNER-MONGOLIA ; CHINA ; RESTORATION ; IRRIGATION ; RESPONSES ; STEPPE
收录类别	SCI
语种	英语
WOS记录号	WOS:000363948000014
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/9532]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
推荐引用方式 GB/T 7714	Zhang, SW,Shen, R,Zhao, HB,et al. Correlating between evapotranspiration and precipitation provides insights into Xilingol grassland eco-engineering at larger scale[J]. ECOLOGICAL ENGINEERING,2015,84:100-103.
APA	Zhang, SW,Shen, R,Zhao, HB,Liu, TX,Shao, HB,&Zhang, ZC.(2015).Correlating between evapotranspiration and precipitation provides insights into Xilingol grassland eco-engineering at larger scale.ECOLOGICAL ENGINEERING,84,100-103.
MLA	Zhang, SW,et al."Correlating between evapotranspiration and precipitation provides insights into Xilingol grassland eco-engineering at larger scale".ECOLOGICAL ENGINEERING 84(2015):100-103.