The change of ecological service value and the promotion mode of ecological function in mountain development using InVEST model

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Feng He ◽  
Jie Jin ◽  
Hong Zhang ◽  
Lei Yuan
2021 ◽  
Vol 668 (1) ◽  
pp. 012037
Author(s):  
Wanshu Zhang ◽  
Wei Jiang ◽  
Yanyu Lin ◽  
Qianyi Mao

2009 ◽  
Author(s):  
Yonghua Sun ◽  
Xiaojuan Li ◽  
Huili Gong ◽  
Yihan Wang

2014 ◽  
Vol 675-677 ◽  
pp. 1040-1043
Author(s):  
Le Sun ◽  
Shao Feng Yuan

Farmland has important ecological service value. Underestimating the added value is one of the reasons of extensive land use. From the view of ecological protection and sustainable development, this paper discusses the ecological function of farmland and assesses its ecological value by using statistical methods. Taking Shaoxing county of Zhejiang province as an example, the study analyzes the necessity of ecological compensation based on the investigation of land uses current situation and land acquisition compensation level. The compensation system in land acquisition should be improved in the aspects of institution, concept and policy.


Author(s):  
Keyue Yuan ◽  
Fei Li ◽  
Haijuan Yang ◽  
Yiming Wang

Land use change has an impact on the ecosystem service value because it changes the structure and function of ecosystems. This paper analyzed the changes in land use during the period from 2000 to 2015 in Shangzhou district, and used the equivalent value of ecological services per unit area of land ecosystem combining the natural and economic conditions of Shangzhou district. Based on this method, the ecological service value of Shangzhou district was estimated, and the impact of land use change on the ecological service value was analyzed. The results showed that: (1) the main types of land use in Shangzhou district were grassland, woodland and farmland, among which the contribution rate of woodland to the value of local ecosystem services was the highest; (2) the overall trend in the ecosystem service value in Shangzhou district increased between 2000 and 2015, from 10.74 × 108 yuan in 2000 to 20.32 × 108 yuan in 2015, which is the result of the combined effects of regional economic development and changes in the natural environment and land use patterns; and (3) the main reason for the value increase of ecosystem services in Shangzhou district between 2000 and 2015 was that the grain-for-green policy transformed a considerable amount of farmland into woodland, while the main reasons for a decline in value was the expansion of built-up land that occupied other types of land.


Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1007
Author(s):  
Jin Huang ◽  
Lei Zhao ◽  
Shijun Sun

In the present paper, an optimization model of the ecological water replenishment quantity of Boluo Lake wetland was constructed for ecological water replenishment in the Boluo Lake National Nature Reserve based on the interval two-stage stochastic programming (ITSP) method, which scientifically allocates the ecological water resources and enhances the utilization of flood resources in order to meet the minimum ecological water replenishment quantity requirement to meet the local economic and social water demand, to restore the wetland function of the reserve, and to improve the ecological environment. In addition, it considers the ecological service value of the reserve in order to achieve a shared increase in the ecological and economic benefits. The optimization model of the ecological water replenishment of Boluo Lake wetland considered the minimum ecological water replenishment as the objective function, while the water diversion capacity, water supply capacity, water diversion sequence, functional area, and ecological service value of the Lake bubble were utilized as constraints in order to restore the ecosystem function of the Boluo Lake National Nature Reserve. The results from the model revealed that the amount of ecological water replenishment was significantly reduced after optimization simulation, with the maximum reduction range in the ecological water replenishment being −100.00% and −74.58%. In addition, the total amount of flood diversion was significantly increased, and the flood resources could be fully utilized. Moreover, the recovery effect on the lake and pond functional areas was significant and compared much better to that prior to the ecological water replenishment, which was up to 2300.00% and 1987.59%. The ecological service value also increased significantly, and the rate of this increase was as high as 23.90% and 21.58%. In the present study, an optimization model was constructed for the ecological water replenishment of the Boluo Lake wetland supplement project based on the interval two-stage stochastic programming method, which would achieve the entire scope of ecological and economic benefits of the ecological water replenishment project by realizing the ecological system reconstruction and providing a feasible and reliable plan to the decision-makers.


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