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1. 发明专利

AU2021101693A4 METHOD FOR DETERMINING WATER USE EFFICIENCY OF VEGETATION LAYER AND EVAPOTRANSPIRATION WATER-GROSS PRIMARY PRODUCTION-WATER USE EFFICIENCY MEASURING DEVICE 未知
公开(公告)号：AU2021101693A4
公开(公告)日：2021-05-20
申请号：AU2021101693
申请日：2021-04-01
申请人： UNIV HUAZHONG SCIENCE TECH
发明人： SUN HUAIWEI , YAN DONG , LIN ZIQI , LIU JIE
IPC分类号： G01D21/02 , G01N33/24
摘要： The disclosure discloses a method for determining water use efficiency of vegetation layer. The method includes the following. Gross primary production (GPP) is calculated based on a temperature and greenness (TG) model, and evapotranspiration water (ET) is calculated based on improved Maximum Entropy Production (MEP) model. The input parameters adopted in the improved maximum entropy production model include land surface specific humidity, land surface temperature, vegetation leaf area, net radiation of land surface, net radiation of vegetation, air specific humidity and air temperature. The input parameters adopted for the improved MEP model include land surface specific humidity, vegetation leaf area, net radiation of land surface, net radiation of vegetation, air specific humidity, and air temperature, and which are collected in the measured region on the spot in real time. By coupling ET and GPP, the inconsistency between ET and GPP models are avoided. Canopy layer Lower layer Shrub layer Land surface layer

2. 发明专利

AU2021101692A4 HIERARCHICAL WATER DISTRIBUTION METHOD AND SYSTEM BASED ON SPATIAL AND TEMPORAL WATER BALANCE OF ECOLOGICAL GATE 未知
公开(公告)号：AU2021101692A4
公开(公告)日：2021-05-20
申请号：AU2021101692
申请日：2021-04-01
申请人： UNIV HUAZHONG SCIENCE TECH
发明人： YAN DONG , SUN HUAIWEI , CHEN LIN , LIU JIE , LU MENGGE , WANG YIJIE , SONG LIANG , LIN ZIQI , CAO LEI , WANG SUILING , ZHAO BINGQIAN
IPC分类号： G05B13/04 , G06N5/04
摘要： The disclosure discloses a hierarchical water distribution method and system based on spatial and temporal water balance of ecological gates. The method includes: classifying all ecological gates according to the degree of water shortage and a rotational irrigation period, and distributing water to the classified ecological gates according to hierarchical levels, and determining the highest hierarchical level of water distribution and the level of water supply at each hierarchical level; then adopting an ecological sensitivity index to classify the ecological gates involved in water distribution into hierarchical levels; according to the level of water supply and the classified hierarchical levels, setting the water volume permit coefficient of each ecological gate involved in water distribution; and setting the goal to maximize the total ecological benefit of water distribution at different hierarchical levels, thus solving the actual water distribution of each ecological gate involved in water distribution with different water sources. Water demand of gate Degree of water Classifying gates shortage of gate Water distribution of previous year Determining the highest Maximum water distribution Actual incoming water hierarchicallevel of water of gates at different distribution hierarchical levels -* Level of water supply Determining water volume permit coefficients Ecologicalsensitivity Classifying gates involved index in water distribution into three levels Unit ecological benefits Establishing maximum Solving actual water target function of annual distribution of gates ecological benefits through linear planning

3. 发明专利

LU102457B1 IRRIGATION METHOD, DEVICE, SYSTEM AND READABLE STORAGE MEDIUM OF CROP 未知
公开(公告)号：LU102457B1
公开(公告)日：2021-08-04
申请号：LU102457
申请日：2021-01-29
申请人： UNIV HUAZHONG SCIENCE TECH
发明人： CHEN JIANING , LIN ZIQI , SUN HUAIWEI
IPC分类号： G06F30/20 , A01G27/00 , G06F119/08
摘要： The invention discloses an irrigation method, device, system and readable storage medium of a crop. The method includes: SI. collecting crop environmental information from a vegetation site of a crop, including temperature data, humidity data, long-wave net radiation data and short-wave net radiation data; S2. processing the crop environmental information using a maximum entropy production model to acquire a potential evapotranspiration and an actual evapotranspiration of the crop; S3. calculating a crop coefficient Kc corresponding to the crop using the potential evapotranspiration and the actual evapotranspiration, the crop coefficient Kc representing a condition of the crop under water stress; and S4. generating an irrigation strategy based on the crop coefficient Kc corresponding to the crop to irrigate the crop. The system performs targeted optimal irrigation on crops, and the irrigation has good reliability and high accuracy, which can resolve the problem of insufficient or excessive irrigation of the crop.

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