Farmland nitrogen runoff estimation method and device, computer equipment and storage medium
The invention discloses a farmland nitrogen runoff estimation method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining a plurality of pieces of sample data, and constructing a model parameter optimization training sample data set according to the plur...
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| creator | ZHANG KAI WANG LU JIA XIAOBO DING SEN YANG ZHONGWEN CHEN YAN MA SHUQIN HOU XIKANG ZHANG YUAN LANG TAO XIA RUI DUAN PINGZHOU |
| description | The invention discloses a farmland nitrogen runoff estimation method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining a plurality of pieces of sample data, and constructing a model parameter optimization training sample data set according to the plurality of pieces of sample data; dividing the model parameter optimization training sample data set into a plurality of subsets according to field management modes and/or crop types, performing optimization calibration on model parameters of a preset nitrogen runoff model equation according to the divided sample data subsets, and establishing a nitrogen runoff regression equation; acquiring spatial distribution data of a to-be-estimated research area, creating a research area model input data set, wherein the spatial distribution data also comprises soil attributes, a field management mode, crop types, climate and other research area spatial distribution data; and calculating the farmland nitrogen runoff of the to-b |
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dividing the model parameter optimization training sample data set into a plurality of subsets according to field management modes and/or crop types, performing optimization calibration on model parameters of a preset nitrogen runoff model equation according to the divided sample data subsets, and establishing a nitrogen runoff regression equation; acquiring spatial distribution data of a to-be-estimated research area, creating a research area model input data set, wherein the spatial distribution data also comprises soil attributes, a field management mode, crop types, climate and other research area spatial distribution data; and calculating the farmland nitrogen runoff of the to-b</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CALCULATING COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC DIGITAL DATA PROCESSING HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR |
| title | Farmland nitrogen runoff estimation method and device, computer equipment and storage medium |
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