Method and system for discriminating forest degradation causes in mountainous areas

• Main Authors: ZHANG MINGFANG, DENG LIHAO
• Format: Patent
• Language: Chinese; English
• Published: 30.10.2020
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTEDFOR SPECIFIC APPLICATION FIELDS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TARIFF METERING APPARATUS; TESTING

The invention discloses a method and system for discriminating the forest degradation causes in a mountainous area, and the method comprises the steps: obtaining the long-time sequence remote sensingdata and meteorological data of a research region, and enabling the data to comprise rainfall data, temperature data, NDVI data and land cover data; performing calculating according to the data to obtain the change trend of the effective accumulated temperature and rainfall double factors and the NDVI; further extracting a degraded forest region in the forest region; judging the degeneration causeof the degenerated forest area according to a forest degeneration cause judgment mode; and finally, dividing the forest degeneration grade of the research area according to the degeneration cause ofthe forest area. The beneficial effects of the invention are that the method is based on the long-time sequence remote sensing data and the meteorological data, the accumulated temperature and the precipitation amount in the gr