Assessment of water environmental carrying capacity for sustainable development using a coupled system dynamics approach applied to the Tieling of the Liao River Basin, China

2015 ◽  
Vol 73 (9) ◽  
pp. 5173-5183 ◽  
Author(s):  
Junfeng Yang ◽  
Kun Lei ◽  
Soonthiam Khu ◽  
Wei Meng ◽  
Fei Qiao
Keyword(s):  
Sustainable Development ◽  
System Dynamics ◽  
River Basin ◽  
Carrying Capacity ◽  
Coupled System ◽  
Environmental Carrying Capacity ◽  
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.

Assessing water resources carrying capacity based on integrated system dynamics modeling in a semiarid river basin of northern China

2014 ◽  
Vol 14 (6) ◽  
pp. 1057-1066 ◽  
Author(s):  
Ying Xie ◽  
Xuyong Li ◽  
Chunsheng Yang ◽  
Yang Yu
Keyword(s):  
Economic Growth ◽  
System Dynamics ◽  
River Basin ◽  
Carrying Capacity ◽  
Northern China ◽  
Water Shortage ◽  
Integrated System ◽  
Dynamics Modeling ◽  
Water Resources Carrying Capacity ◽  
Optimized Allocation

Water shortage is a major problem in northern China, because of a huge population and rapid economic growth. Taking the Luanhe River Basin (LRB) as a study area, we set up a System Dynamics (SD) model of the basin for the period 2005–2010, and considered various important socioeconomic and environmental factors and their correlation. Significant trends for the period 2011–2030 were simulated and the water resource carrying capacity (WRCC) of the LRB and its trends over the next 30 years were analyzed. The results indicate a decreasing trend of WRCC in the basin and that current economic growth is not sustainable. The study investigated possible optimized allocation projects. The most apt project would involve a combination of strategies that could considerably increase the WRCC, reduce demand, and improve water quality.

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