Evaluation method and device suitable for reasonable grazing rate of alpine grassland

The invention discloses an evaluation method and device suitable for a reasonable grazing rate of an alpine grassland, and the method comprises the steps: collecting and preprocessing data of the alpine grassland, and obtaining the preprocessed data of the alpine grassland; calculating potential primary net productivity and actual net productivity according to the preprocessed alpine grassland data so as to calculate productivity influenced by human activities; the productivity actually consumed by the livestock is calculated according to the preprocessed alpine grassland data, and the evaluation index of the alpine grassland is calculated according to the productivity influenced by human activities and the productivity actually consumed by the livestock; and analyzing the variation trend of the productivity, and analyzing and evaluating the reasonable livestock grazing rate of the alpine grassland in combination with the evaluation indexes and the variation trend of the productivity. By determining the influ