Method for evaluating influence of diversion engineering on lake wetland habitat change

• Main Authors: CHENG BO, YAN FENGLING, LI HONGQING, JIANG BO
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2023
• 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; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a method for evaluating influence of water diversion engineering on lake wetland habitat change. The method comprises the following steps: (1) collecting a water level observation data set, a high-resolution remote sensing image set and topographic survey data of a target lake; (2) performing adaptive habitat type division on habitat types according to preference degrees of waterfowl distribution in different habitat types; (3) obtaining habitat type space distribution data under different water levels; (4) respectively counting the area of each suitable habitat type under each water level, and obtaining a scatter diagram of the area and the corresponding water level, so as to construct a water level-area response model of each suitable habitat type; and (5) calculating the increase or decrease of each suitable habitat type area relative to the reference area under the design level year to evaluate the influence of the diversion project on the habitat change of the target lake. The met