In-basin water and soil loss non-point source pollutant river-entering amount accounting method

• Main Authors: LIANG YIXIN, ZHANG KUAN, WANG WEI, KONG DEFANG, SHEN XINGHOU, ZHANG PEI, LI NAN, LIANG JING, LI YONGLI, CHEN LI, JING ZHONGQIU
• Format: Patent
• Language: Chinese; English
• Published: 18.09.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to an in-basin water and soil loss non-point source pollutant river-entering amount accounting method, which can effectively solve the problems of water and soil loss non-point source pollutant river-entering amount accounting and water environment non-point source pollution treatment. The method comprises the steps: according to public data measured by a hydrological controlstation in a river sediment report, calculating the sediment loss amount in a drainage basin; obtaining soil type information which is prone to water and soil loss in the drainage basin from a Chinasoil type database, and calculating the average content of total nitrogen and total phosphorus on the surface layer of the soil prone to water and soil loss; and adopting a water and soil loss non-point source pollutant loss amount accounting formula to calculate the water and soil loss non-point source pollutant loss amount and the river entry amount in the drainage basin. The method is simple and practical, required basi