Ecological Evaluation Index System Research Articles

Evaluation of ecological restoration effect of rare plant Rhododendron chrysanthum population in Changbai Mountain Area

In order to study the population viability and restoration effect of Rhododendron chrysanthum population after restoration, an ecological evaluation method based on analytic hierarchy process and fuzzy comprehensive evaluation was proposed. The ecological evaluation index system was established with the help of analytic hierarchy process (AHP) and the index weight was determined. The fuzzy comprehensive evaluation method was used to evaluate the restoration effect of Rhododendron chrysanthum population from three aspects: target layer, criterion layer and index layer. The results showed that this method could effectively evaluate the ecological effect of Rhododendron chrysanthum population after restoration, in which 33% of the restoration effect of Rhododendron chrysanthum population might be “very good” and 67% might be “good”. According to the principle of maximum membership degree, the comprehensive evaluation of the restoration effect of Rhododendron chrysanthum population in the experimental area was excellent.

The Evaluation and Analysis of Benefit of Land Resource Use in Economic Perspective

With the reduction of land resources, it has become the main content of current city construction that how to exert the most economical benefit with the limited resources. This paper establishes the economic, social and ecological evaluation index system of benefit of urban land resource use and also quantifies it. It uses the analytic hierarchy process (AHP) and the entropy value method to determine the index weights, and applies Cobb-Douglas production function into the estimation of land production. Moreover, it also concludes that the social, economic and ecological influences must be considered in the evaluation of benefit of land resource use through the data analysis.

Research on the Watershed Ecological Risk Management

The risk management of watershed ecology is an important topic in the field of water resources management. To improve the present situation of the water ecological risk management in Songhua River and Liao River watershed, based on the policy of eco-management of the important water function zone in China, and the potential risk source investigation of watershed, investigate hazard components, predict risk probability and the possible negative effects, put forward the mitigation measure on water ecological response in watershed. It is necessary to explore water ecotoxicological variation, resolve biodiversity watershed, establish a suitable ecological evaluation index system, and put forward the multi-objective of optimizing management strategies.