Research progress on an index system of city water environmental carrying capacity

2010 ◽  
Author(s):  
Sun Nan ◽  
Ma Lixin ◽  
Fu Qiang
Keyword(s):  
Carrying Capacity ◽  
Index System ◽  
Research Progress ◽  
Environmental Carrying Capacity ◽  
City Water ◽  
Water Environmental Carrying Capacity

Grassland resource evaluation based on improved bp network model and analytic hierarchy process

2020 ◽  
pp. 1-12
Author(s):  
Zhou Jiang ◽  
Zhenwu Wei
Keyword(s):  
Sustainable Development ◽  
Analytic Hierarchy Process ◽  
Carrying Capacity ◽  
Index System ◽  
Evaluation Index System ◽  
Analytic Hierarchy ◽  
Bp Network ◽  
Resource Evaluation ◽  
Environmental Carrying Capacity ◽  
Hierarchy Process

Grassland resources are an important part of land resources. Moreover, it has the functions of regulating the climate, windproof and sand fixation, conserving water sources, maintaining water and soil, raising livestock, providing food, purifying the air, and beautifying the environment in terrestrial ecosystems. Grassland resource evaluation is of great significance to the sustainable development of grassland resources. Therefore, this paper improves the BP neural network, uses the comprehensive index method to calculate the weights in the analytic hierarchy process, and constructs a water resources carrying capacity research and analysis system based on the entropy weight extension decision theory. Meanwhile, this paper analyzes different levels of resource and environmental carrying capacity to achieve the purpose of comprehensive evaluation of resource and environmental carrying capacity. In addition, based on the theory of sustainable development, under the guidance of the principle of index system construction, this paper studies the actual situation of grassland resources and the availability and operability of data, and combines with the opinions given by experts to form an evaluation index system of grassland resources and environmental carrying capacity. Finally, through the actual case study analysis, it is concluded that the model constructed in this paper has a certain effect.

Optimization of industrial structure based on water environmental carrying capacity in Tieling City

2015 ◽  
Vol 71 (8) ◽  
pp. 1255-1262 ◽  
Author(s):  
Qiang Yue ◽  
Limin Hou ◽  
Tong Wang ◽  
Liusuo Wang ◽  
Yue Zhu ◽  
...  
Keyword(s):  
Carrying Capacity ◽  
Industrial Structure ◽  
Optimal Solution ◽  
Policy Recommendations ◽  
Environmental Carrying Capacity ◽  
Social And Economic Development ◽  
Scientific Decision ◽  
City Policy ◽  
Economic Development Model ◽  
Water Environmental Carrying Capacity

A system dynamics optimization model of the industrial structure of Tieling City based on water environmental carrying capacity has been established. This system is divided into the following subsystems: water resources, economics, population, contaminants, and agriculture and husbandry. Three schemes were designed to simulate the model from 2011 to 2020, and these schemes were compared to obtain an optimal social and economic development model in Tieling City. Policy recommendations on industrial structure optimization based on the optimal solution provide scientific decision-making advice to develop a strong and sustainable economy in Tieling.

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