Method for evaluating a soil ecological service function in an urbanization process

Abstract

The invention belongs to the technical field of soil evaluation, and relates to a method for evaluating a soil ecological service function in an urbanization process. Firstly, an index system appliedto soil ecological service function evaluation in urbanization is established based on a PSR model, and then the index system and a fuzzy comprehensive evaluation method are used for evaluating the state of the soil ecological service function of the area and analyzing the influence mechanism of urbanization on the soil ecological service function of the area. According to the invention, urbanization factors and soil ecological service function factors are combined; the soil ecological service function in urbanization is evaluated by using fuzzy comprehensive evaluation; according to the method, the soil ecological system is constructed on the basis of the comprehensive level, and the priority of the treatment index is obtained through analysis, so that planning treatment measures and construction schemes are put forward in a targeted manner on the basis of the overall level, sustainable soil management measures are formulated, the soil ecological system is efficiently treated and protected on the management level, and the deficiency in the aspect of soil ecological service functions is filled.

Description

technical field [0001] The invention belongs to the technical field of soil evaluation, and relates to a method for evaluating soil ecological service functions in the process of urbanization. Background technique [0002] Soil is a vital finite resource to maintain sustainable socio-economic development and provides various basic ecological services for humans, including not only tangible services (food, fiber and fresh water), but also regulating services and supporting processes to maintain other services These services are collectively referred to as soil ecosystem services. However, there are not many studies on soil ecological services at present, resulting in insufficient awareness and attention to them, and the lack of effective and practical evaluation methods. [0003] On the other hand, increasing pressure from human activities has led to increased soil degradation and severe negative impacts on ecosystem services. Among them, although the continuous development...

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Problems solved by technology

However, the current research on the evaluation of soil ecological service functions is insufficient, and most of them are studies on theoretical systems: including research on the relationship between soil and ecological service functions; research on the possibility and methods of soil ecological service function evaluation; soil ecology The role of system services in soil management; the current research on the assessment framework is mostly research on the perspective and direction of assessment and the research on assessment methods

At the same time, most current studies on soil ecological services only focus on the service itself, ignoring the overall environment, potential ecological mechanisms, and soil multifunctionality, and most studies focus on providing and regulating soil ecological service functions

At the same time, there is no consensus on the classification of soil ecological services, a comprehensive framework for economic evaluation, or a systematic approach to assessing their importance, and there is a lack of practical research cases

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