scholarly journals Comprehensive Evaluation Model of Environmental Quality in Ecological Reserve

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Songjia Zhang ◽  
Weiyang Yu ◽  
Teng Chen
Keyword(s):  
Environmental Quality ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Development Trend ◽  
Evaluation Index System ◽  
Entropy Weight ◽  
Ecological Protection ◽  
Ecological Reserve ◽  
Protection Area

The environmental quality of the ecological protection zone directly affects the water quality and air quality of the area, thereby affecting the quality of people’s life. This paper constructs the evaluation index system of the environmental quality of the ecological protection area and determines the classification standards of each index, proposes the extension evaluation method of the environmental quality of the ecological protection area, and uses the entropy weight method to determine the weight of each level of index. Its purpose is to understand the development trend of environmental quality in all aspects of the ecological reserve through the dynamic evaluation of the environmental quality of the ecological reserve, so as to take corresponding countermeasures to promote the healthy development of the area. The constructed model was used to dynamically evaluate the environmental quality of the ecological reserve in Zhangjiakou City from 2008 to 2019. The research results show that the environmental quality gaps in different aspects of the ecological reserve of Zhangjiakou City are relatively large, and the overall regional ecological environment characteristic value is decreasing year by year, reflecting that the environmental quality of the ecological reserve of the region is getting better year by year.

Fuzzy Comprehensive Evaluation Method on Water Environmental Quality Based on Entropy Weight with Consideration of Toxicology of Evaluation Factors

2011 ◽  
Vol 356-360 ◽  
pp. 2383-2388 ◽  
Author(s):  
Jun Yao Yang ◽  
Lei Lei Zhang
Keyword(s):  
Environmental Quality ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Entropy Weight ◽  
Fuzzy Comprehensive Evaluation Method ◽  
Comprehensive Evaluation Method ◽  
The One ◽  
Water Environmental Quality

There are lots of methods of evaluating the environmental quality of groundwater. Based on a comprehensive analysis of those common methods, this paper puts forward a method named fuzzy comprehensive evaluation method on water environmental quality based on entropy weight with consideration of toxicology of evaluation factors. Developed from the entropy-based fuzzy comprehensive evaluation method, this method takes into account the influences caused by the toxicology weight and over standard weight of evaluation factors on the calculation of entropy weight. Through some water samples, the evaluation result of this method is more reasonable, objective and comprehensive than the one which is concluded from the entropy-based fuzzy comprehensive evaluation method.

Regional comprehensive drought disaster risk dynamic evaluation based on projection pursuit clustering

Water Policy ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 410-428 ◽  
Author(s):  
Yongnan Zhu ◽  
Lei Li ◽  
Yong Zhao ◽  
Zhongmin Liang ◽  
Haihong Li ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Dimensional Space ◽  
Projection Pursuit ◽  
Development Trend ◽  
Disaster Risk ◽  
Evaluation Index System ◽  
Dynamic Evaluation ◽  
Drought Disaster ◽  
The Development Trend

Abstract We used system theory to analyze the structure of a regional drought disaster system and separated the drought disaster risk system into three subsystems. These were drought disaster-causing factors, disaster-inducing environments, and disaster-bearing bodies. Analysis of the main factors of these subsystems allowed the establishment of a regional comprehensive drought disaster risk evaluation index system. To simultaneously evaluate the distribution and development trends of the regional comprehensive drought disaster risk, we established a dynamic evaluation model. Based on the ideas of the projection pursuit clustering method and the dynamic comprehensive evaluation method, the model can make use of multi-dimensional space–time drought disaster information. The model was applied to evaluate comprehensive drought disaster risk in the Xuzhou region, China. The evaluation results show that the method was able to illustrate the development trend and distribution of the comprehensive drought disaster risk in the Xuzhou region. The clustering zoning results show that Pizhou City is the area with the highest risk in Xuzhou, while Fengxian has the lowest. The development trend of comprehensive drought disaster risk with time is not significant.

scholarly journals Tourists Perceived Value of Forest Experience Base Recreation Based on Fuzzy Entropy Weight

2021 ◽  
Vol 251 ◽  
pp. 03048
Author(s):  
Yi-Tian Jin ◽  
Li-Ming Chen
Keyword(s):  
Environmental Quality ◽  
Leisure Time ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Perceived Value ◽  
Fuzzy Entropy ◽  
Entropy Weight ◽  
Cultural Experience ◽  
Five Dimensions ◽  
Comprehensive Evaluation Method

This paper constructs a formula for measuring the tourists perceived value index of forest experience base recreation on five dimensions: Scenic resource attachment, Forest cultural experience, Environmental quality perception, “Two mountains” concept identity, and leisure time activities. Taking Bamboo Expo Park Forest Experience Base in Tianhuangping Town, Anji County, Huzhou City of Zhejiang Province as an example, a comprehensive evaluation method based on fuzzy entropy weight is used to evaluate and analyze the tourist perception value index of the Bamboo Expo Park Forest Experience Base recreation. Research shows that the tourist’s perceived value index of the base for recreation is 90.92, revealing that the tourist’s perceived value is roughly 10% off the Bamboo Expo Park Forest Experience Base ticket price.

scholarly journals Research on Construction and Evaluation Method of Comprehensive Evaluation Index System for Investment Benefit of Distribution Network

2021 ◽  
Vol 257 ◽  
pp. 02063
Author(s):  
Ying Li ◽  
Xueying Zhang ◽  
Yue Zhang ◽  
Laiyuan Lai ◽  
Chao Chen
Keyword(s):  
Power Supply ◽  
Index System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Distribution Network ◽  
Distribution Networks ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Investment Efficiency

Under the new situation, the improvement of investment efficiency and efficiency will be the basic criteria for evaluating the quality of power supply enterprises’ investment activities in the distribution network. To this end, based on the characteristics of distribution network construction, combined with the internal and external development trends of power supply enterprises and development and promotion needs, this paper constructs a scientific comprehensive evaluation index system and evaluation method for the investment benefits of distribution networks, which is useful for scientifically grasping the investment needs and investment capabilities of power supply enterprises. It is of great significance to achieve a more precise and lean level of investment in the distribution network.

scholarly journals Characteristics and Influencing Factors on the Hollowing of Traditional Villages—Taking 2645 Villages from the Chinese Traditional Village Catalogue (Batch 5) as an Example

2021 ◽  
Vol 18 (23) ◽  
pp. 12759
Author(s):  
Chunla Liu ◽  
Mei Xu
Keyword(s):  
Influencing Factors ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Rapid Development ◽  
Historical Memory ◽  
Evaluation Index System ◽  
Entropy Weight ◽  
Population Number ◽  
Correlation Analysis Method ◽  
Surrounding Areas

With the rapid development of urbanization and modernization, the population of traditional villages migrates into surrounding areas, causing the hollowing of traditional villages. The disintegration of China’s traditional village means the loss of historical memory and cultural characteristics of ethnic regions, seriously endangering the country’s cultural heritage. To better understand the hollowing phenomenon, this study analyzed 2645 villages from the Chinese traditional village catalogue (Batch 5) and evaluated different village attributes, including location, household registration, permanent population, number of traditional buildings, cultural relics, historical buildings, and non-heritage representative projects. We constructed an evaluation index system and used the entropy weight method, comprehensive evaluation method, and correlation analysis method to quantitatively assess the characteristics and influencing factors of hollowing among traditional Chinese villages. The main results are as follows: ① The hollowing index was above 0.5; most traditional villages have entered the stage of high hollowing. ② The traditional villages with hollowing index above 0.9 comprised 92%, and those between 0.8 and 0.9 made up 6%. Those with hollowing index at intervals 0.7–0.8, 0.6–0.7, and 0.5–0.6 accounted for 0.98%, 0.30%, and 0.11%, respectively. ③ Population hollowing is the fundamental cause of traditional village hollowing. In more than 99% of traditional villages, the population hollowing index was greater than 0.7. ④ More than 99% of traditional villages have a building hollowing index greater than 0.4, and more than 92% of the villages had a per capita number below 0.1. ⑤ The cultural hollowing rate for most traditional villages was very high. The cultural hollowing index for more than 99% of traditional villages was greater than 0.7. This study provides references for government administrators and scholars in rural revitalization and traditional village hollowing governance.

Grid Material Supplier Selection Based on Entropy Weight Correction from Perspective of Low Carbon

2014 ◽  
Vol 618 ◽  
pp. 603-607 ◽  
Author(s):  
Zheng Yuan Jia ◽  
Bin He
Keyword(s):  
Index System ◽  
Evaluation System ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Power Grid ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Low Carbon ◽  
Entropy Weight ◽  
Analytic Hierarchy

Supplier management is an important part of supply chain management, combined with the feature of the power industry, the paper design supplier comprehensive evaluation system of power grid enterprises, and put forward comprehensive green degree into supplier evaluation index system to conform to the national grid company production requirements. Firstly, according to the index system, the analytic hierarchy process evaluation method to draw the initial weights, secondly, the modification of entropy weight method to reduce the subjective factor influence on the evaluation results by AHP , finally, an example is given to demonstrate the feasibility of the evaluation index system for the power grid enterprise, it aslo provides a theoretical basis for decision-makers during the vendor selection.

Applied Technology and Evaluation on Emergency Management Capability of Coal Mine Accidents Based on AHP and the Fuzzy Comprehensive Evaluation Method

2013 ◽  
Vol 859 ◽  
pp. 511-514 ◽  
Author(s):  
Jing Jing Wan ◽  
Ying Hua Song
Keyword(s):  
Emergency Management ◽  
Coal Mine ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Assessment Model ◽  
Comprehensive Evaluation Method ◽  
Management Capability ◽  
Mine Accidents

This paper has put forward a comprehensive assessment model of the emergency management capability of the coal mine accidents which is based on AHP and fuzzy comprehensive evaluation, and has made an empirical analysis. Firstly, the meaning and the key contents of the emergency management capability of coal mine accidents was elaborated. Secondly, the comprehensive evaluation index system of coal mine accidents emergency management capability was established. And then, the first class index weights were determined by AHP. Finally, this paper made a comprehensive evaluation of a certain regions emergency management capability of coal mine accidents by means of the fuzzy comprehensive evaluation.

scholarly journals Spatiotemporal Changes and Obstacle Factors of Forest Ecological Security in China: A Provincial-Level Analysis

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1526
Author(s):  
Honghong Yu ◽  
Jiameng Yang ◽  
Mengyuan Qiu ◽  
Zhiyong (John) Liu
Keyword(s):  
Comprehensive Evaluation ◽  
Mainland China ◽  
Development Trend ◽  
Evaluation Index System ◽  
Utilization Efficiency ◽  
Ecological Security ◽  
Factors Affecting ◽  
Provincial Level ◽  
Resource Endowment ◽  
Pressure Indicators

Under the background of China’s proposal to achieve “carbon neutralization and carbon peak”, it is an important task for each province to clarify their forest ecological security (FES) status. However, there is little understanding of the temporal and spatial evolution of forest ecological security and its influencing factors. Based on the Pressure-State-Response (PSR) model, this paper constructed a comprehensive evaluation index system for forest ecological security and used the CRITIC method and panel data to estimate the dynamic changes in FES for 31 provinces in China (excluding Hong Kong, Macao, and Taiwan) between 2009 and 2018. Furthermore, the obstacle degree model was used to determine the important obstacle factors affecting FES. The results showed that: (1) The comprehensive indices of FES of most provinces in mainland China were increasing, showing a good development trend during the study period; (2) subject to the limitations of resources and economic conditions, the FES at the provincial level showed significant spatial heterogeneity, which generally presents a distribution characteristic of “low in the western region and high in the central and eastern regions”; and (3) the primary obstacles restricting the improvement of FES level in most provinces of China were forest state indicators or input response indicators, followed by pressure indicators. Therefore, it is recommended to take targeted measures to reduce the intensity of forest cutting and the incidence of forest disasters, improve the utilization efficiency of forest resources, the productivity of forestland and the input-output level of forestry industry, and strengthen the training of professional talents and technical input according to the resource endowment condition of each province so as to improve the level of forest ecological security.

Sign in / Sign up

Export Citation Format

Share Document