Comprehensive evaluation of ecosystem health in pastoral areas of Qinghai–Tibet Plateau based on multi model

Abstract

In order to solve the problem that the existing ecosystem health assessment methods are affected by many uncertain factors, resulting in inaccurate assessment results, a comprehensive assessment method of ecosystem health in pastoral areas of Qinghai–Tibet Plateau was proposed based on multi model combination method, taking pastoral areas of Qinghai–Tibet Plateau as an example. Remote sensing technology is introduced to obtain the relevant information of the study area and analyze the ecological and environmental problems of the Qinghai–Tibet Plateau. The remote sensing image of plateau pastoral area is corrected and fused, and the multi model is established by using the common Kriging interpolation method, and the response evaluation index system is obtained. Analysis of forest vegetation coverage, temperature vegetation drought index, leaf area index, vegetation primary productivity, surface temperature and precipitation, calculation of index weight, complete the design of evaluation method. The experimental results show that the designed evaluation method is closer to the actual situation, which verifies the effectiveness of the evaluation method. • Image preprocessing of Qinghai Tibet Plateau Using Remote Sensing Technology. • The common Kriging interpolation method is used to establish the multi index model. • The weight of ecosystem health evaluation index was calculated. • The results show that the design method is consistent with the actual situation.