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; Shao, HB (reprint author), Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China. hbzhao04@163.com; shaohongbochu@126.com
发表期刊ECOLOGICAL ENGINEERING
ISSN0925-8574
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
DOI10.1016/j.ecoleng.2015.07.015
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
作者部门海岸带生物学与生物资源利用所重点实验室
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.; 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.
文章类型Article
资助机构National Natural Science Foundation of China(51269014 ; Program for Changjiang Scholars and Innovative Research Team in University(IRT13069) ; 31360113 ; 51139002)
收录类别SCI
语种英语
关键词[WOS]INNER-MONGOLIA ; CHINA ; RESTORATION ; IRRIGATION ; RESPONSES ; STEPPE
研究领域[WOS]Environmental Sciences & Ecology ; Engineering
WOS记录号WOS:000363948000014
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/9532
专题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保护实验室
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
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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.,...&shaohongbochu@126.com.(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.
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