New ecological index evaluation based on remote sensing data

doi:10.13474/j.cnki.11-2246.2021.330

Abstract

Abstract: According to the problems of difficulty in obtaining eco-environmental assessment index and different evaluation criteria, a new ecological index (NEI) is put forward. The index synthetically reflects the regional eco-environment status by biological richness index, vegetation coverage index, dryness index, wetness index and air quality index, and uses principal component analysis to objectively determine the weight. The results indicate that NEI's index selection and results have strong comparability with EI in "Technical Criterion for Ecosystem Status Evaluation". However, the NEI's index has the characteristics of quantification, visualization and real-time results, and has a good application prospect for evaluating the regional ecological environment.

Key words: ecological environment index, principal component analysis, remote sensing technology, ecological environment assessment

CLC Number:

P237

SUN Caixia, YANG Fan, HU Jin. New ecological index evaluation based on remote sensing data[J]. Bulletin of Surveying and Mapping, 2021, 0(11): 12-15,53.

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