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Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 65-77 doi: 10.1007/s11709-010-0002-9

Abstract: Physically-based hydrological models are used to predict catchment water balance through detailed simulationHowever, annual catchment water balance can also be easily and simply predicted using lumped conceptualrelationship between actual and potential evapotranspiration at annual time scale.evapotranspiration is controlled mainly by annual precipitation and potential evapotranspiration, andnonlinear relationship at the annual and catchment scale but can be simplified to a linear relationship

Keywords： catchment evapotranspiration     distributed hydrological model     water-energy balance model     top-down and bottom-up    

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Analysis of rainfall runoff characteristics from a subtropical urban lawn catchment in South-east China

Jinliang HUANG, Zhenshun TU, Pengfei DU, Qingsheng LI, Jie LIN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 531-539 doi: 10.1007/s11783-010-0287-x

Abstract: hm urban catchment with predominant land-use as lawn in Xiamen City, South-east China were investigated

Keywords： rainfall runoff     first flush     pollution characteristics     urban lawn catchment    

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Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 456-465 doi: 10.1007/s11709-013-0218-6

Abstract: from a forest catchment, were compared with another forest catchment.The soil was compacted and water-holding capacity of soil in the upland field catchment became smallerthe forest catchment.Annual evapotranspiration from the upland field catchment tended to be lower due to the change in vegetationThe simulated results indicated that evapotranspiration was decreased and change in discharge was more

Keywords： land-use change     hydrological processes     upland field catchment     forest catchment     semi-distributed hydrological    

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Stormwater runoff pollution loads from an urban catchment with rainy climate in China

Liqing LI, Baoqing SHAN, Chenqing YIN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 672-677 doi: 10.1007/s11783-012-0447-2

Abstract: Stormwater runoff from an urban catchment with a combined sewer system was sampled and analyzed over

Keywords： combined sewer overflow     pollution load     first flush     detention basins    

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THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND AREA IN THE JINGLINXI CATCHMENT

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 607-626 doi: 10.15302/J-FASE-2023517

Abstract: , this study made observations on the ecological function of the ditch and pond system in a typical catchmentFirst, the changes in ponds in the catchment were analyzed using high-resolution remote sensing data.The results showed that over the past 15 years the length of ditches in the catchment and the number

Keywords： ditches     ponds     non-point source pollution     mountainous areas     nitrogen     phosphorus    

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Comparison of evapotranspiration and energy partitioning related to main biotic and abiotic controllers

Lei GAO, Peng ZHAO, Shaozhong KANG, Sien LI, Ling TONG, Risheng DING, Hongna LU

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4,   Pages 490-504 doi: 10.15302/J-FASE-2019310

Abstract:

Knowledge of evapotranspiration (ET) and energy partitioning is useful for optimizing water management

Keywords： crop coefficient     eddy covariance     microlysimeter     sap flow     soil evaporation     transpiration    

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Real-time Forecast of Irrigation

Mao Zhi,Li Yuanhua,Li Huichang

Strategic Study of CAE 2002, Volume 4, Issue 5,   Pages 24-33

Abstract:

The real-time forecast of irrigation is one of the essential part of the work for compiling a dynamic plan of irrigation water use. It plays an important role in saving water, increasing crop yields and economic benefits in an irrigation area. The real-time forecast of water requirements of crops is the essential and difficult part in the real-time foreast of irrigation. The methods and models for the conventional forecast of crop water requirement ,applied both in China and the world, are based on the application of the historic data from typical hydro-logic years. They can not used for the real-time forecast. In this paper, on the basis of the analyses of the relationship between the crop water requirements and the meteorological factors and non-meteorological factors such as the factors of plant and soil, the method and models for the real-time forecast of crop water requirements based on the factors of weather types, leaves cover percentage and effective soil moisture are presented and recommended. The concrete steps and computer block diagram are introduced. The main improvements are that the weather type is used instead of such four meteorological factors in Modified Peman's Eguation as air temperature, humidity, sunshine hour and wind speed,the leaves cover percentage is used instead of the leaves area index, and an improved equation for calculating soil moisture correction coefficient is proposed. Based on the results of the real-time forecast of crop water requirement and precipitation, the real-time measurement of soil moisture (for dry food crops fields) or depth of water layer (for paddy fields) and the maximum and minimum values of soil moisture content or water depth for getting high yields and saving water, and the calculation of field water balance, the method and models of real-time irrigation forecast including the real-time forecast of the date and quota of irrigation for both dry food crops fields and paddy fields are presented. In this paper, the precision of the real-time forecast and its effects on increasing yield and saving water are also introduced and discussed.

Keywords： irrigation     real-time forecast     evapotranspiration     irrigation schedule    

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Water Resource Effectiveness of Vegetation Conservation and Restoration in North China

Sun Siqi,Chen Yongzhe,Wang Cong,Hu Qingfang,Lyu Yihe

Strategic Study of CAE 2022, Volume 24, Issue 5,   Pages 97-106 doi: 10.15302/J-SSCAE-2022.05.012

Abstract: approximately 2.3 times faster than that outside the project area; the vegetation expansion and evapotranspirationshow strong spatial and temporal correlations; and the increase in evapotranspiration owing to

Keywords： North China     ecological restoration projects     evapotranspiration     water storage     net primary productivity    

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Suitability of common models to estimate hydrology and diffuse water pollution in North-eastern German lowland catchments with intensive agricultural land use

Muhammad WASEEM, Frauke KACHHOLZ, Jens TRÄNCKNER

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 4,   Pages 420-431 doi: 10.15302/J-FASE-2018243

Abstract:

Various process-based models are extensively being used to analyze and forecast catchment hydrology(MIKE SHE coupled with MIKE 11 and ECO Lab), have been reviewed particularly for the Tollense River catchmentIn this review, only the processes that were needed to simulate the Tollense River catchment were considered

Keywords： diffuse pollution     ECO Lab     HSPF     lowland catchment     MIKE 11     MIKE SHE     modeling tools     SWAT     SWIM     Tollense River    

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The innovation and practice of dryland farming technology in Gansu Province

Guo Xianshi,Liu Yanlan,Hou Huizhi and Guo Tianwen

Strategic Study of CAE 2012, Volume 14, Issue 3,   Pages 65-69

Abstract: and application situation ofthe whole plastic-film mulching on double ridges and planting maize in catchment

Keywords： dryland faming technologies     the whole plastic-film mulching on double ridges and planting maize in catchment    

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Title Author Date Type Operation

Analysis of catchment evapotranspiration at different scales using bottom-up and top-down approaches

Xiangyu XU, Dawen YANG,

Journal Article

Analysis of rainfall runoff characteristics from a subtropical urban lawn catchment in South-east China

Jinliang HUANG, Zhenshun TU, Pengfei DU, Qingsheng LI, Jie LIN

Journal Article

Effects of land use change on hydrological cycle from forest to upland field in a catchment, Japan

Chuan ZHANG, Keiji TAKASE, Hiroki OUE, Nobuhiro EBISU, Haofang YAN

Journal Article

Stormwater runoff pollution loads from an urban catchment with rainy climate in China

Liqing LI, Baoqing SHAN, Chenqing YIN

Journal Article

THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND AREA IN THE JINGLINXI CATCHMENT

Journal Article

Comparison of evapotranspiration and energy partitioning related to main biotic and abiotic controllers

Lei GAO, Peng ZHAO, Shaozhong KANG, Sien LI, Ling TONG, Risheng DING, Hongna LU

Journal Article

Real-time Forecast of Irrigation

Mao Zhi,Li Yuanhua,Li Huichang

Journal Article

Water Resource Effectiveness of Vegetation Conservation and Restoration in North China

Sun Siqi,Chen Yongzhe,Wang Cong,Hu Qingfang,Lyu Yihe

Journal Article

Suitability of common models to estimate hydrology and diffuse water pollution in North-eastern German lowland catchments with intensive agricultural land use

Muhammad WASEEM, Frauke KACHHOLZ, Jens TRÄNCKNER

Journal Article

The innovation and practice of dryland farming technology in Gansu Province

Guo Xianshi,Liu Yanlan,Hou Huizhi and Guo Tianwen

Journal Article