A Quantitative Method for Grassland Ecological Carrying Capacity Based on Structural Dynamics

Abstract

The invention relates to a grassland ecological carrying capacity quantification method based on structural dynamics. According to the method, the principle of the structural dynamics is mainly utilized to carry out grassland ecological carrying capacity research, the mass, damping, rigidity and load in a structural dynamic equation are subjected to physical meaning analogy to express grassland mass, grassland potential, grassland restoring force and grassland pressure respectively, and therefore quantification of the grassland ecological carrying capacity is realized; on the basis of index system construction, standardized processing, external pressure action displacement calculation, grassland loading capacity calculation and other processes, the grassland ecological carrying capacity is quantitatively expressed into a specific value of grassland loading capacity and external pressure action displacement, namely the loading capacity of unit displacement. The method is applied to grassland ecological carrying capacity measurement, dynamic process monitoring, scenario estimation and impact factor identification and can also be applied to quantitative measurement of the carrying capacity of resources, environment and socioeconomic systems to provide guidance for carrying capacity improvement and sustainable development decision making.

Description

technical field [0001] The invention relates to the technical field of grassland ecological management, in particular to a method for quantifying grassland ecological carrying capacity based on structural dynamics. Background technique [0002] Ecological carrying capacity is an important concept in sustainable management and practice, and a key indicator to measure regional economic, social and ecological sustainable development. Its theoretical methods are widely used in interdisciplinary fields such as ecology, geography, environmental science and social science. Due to the numerous constraints on ecological carrying capacity and complex temporal and spatial conditions, the academic community has not yet formed a recognized concept of ecological carrying capacity. In general, there are five different perspectives on the concept analysis of ecological carrying capacity: one is the perspective of population ecology, and ecological carrying capacity was first used It is used...

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Problems solved by technology

On the one hand, there are not many models and methods applied to ecological carrying capacity, especially the model methods with general significance for the study of grassland ecological carrying capacity are still in the exploratory stage

On the other hand, there are relatively many studies that comprehensively examine the impact of human activities and climate change on grassland degradation and stocking capacity, or establish evaluation index systems based on stress factors, stress factors, and stress conditions, but permafrost change is used as an ecological index system. Very little research has been done on important drivers of carrying capacity

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