Comprehensive Evaluation on Sensitivity of Ecological Environment in Chengde

2012 ◽  
Vol 518-523 ◽  
pp. 1252-1263
Author(s):  
Chun Li ◽  
Jin Ping Qian
Keyword(s):  
Comprehensive Evaluation ◽  
Water Environment ◽  
Ecological Environment ◽  
General Area ◽  
Sensitive Area ◽  
Environment Pollution ◽  
Single Factor ◽  
Evaluation Result ◽  
Factor Evaluation ◽  
Four Levels

This paper adopts the multi-factor comprehensive evaluation to conduct spatial superposition calculation of the classified index of single-factor evaluation result through evaluating soil erosion sensitivity, land desertification sensitivity, susceptibility to stress of water resource and water environment pollution sensitivity, etc, thus getting the result of comprehensive evaluation of ecological environment sensitivity in Chengde. Chengde’s ecological environment has four levels which are extremely sensitive area, medium sensitive area, slightly sensitive area and general area.

scholarly journals Analysis of the water quality condition of the Zijiang River in summer and the applicability of evaluation methods

2021 ◽  
Vol 237 ◽  
pp. 01027
Author(s):  
Tao Zhang ◽  
Peng Xiang ◽  
Shijiang Zhu ◽  
Yang Liu ◽  
Wen Xu ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Nutrient Status ◽  
River Water Quality ◽  
Single Factor ◽  
Index Method ◽  
Factor Evaluation ◽  
Status Index

The single-factor evaluation method, improved Nemerow index method, fuzzy mathematical synthesis evaluation method and comprehensive nutrient status index method were used to evaluate the water quality of the Zijiang River in summer, and to analyze the applicability of the evaluation methods. The results show that: (1) The Zijiang River is heavily polluted with nitrogen and TN is the main pollutant in the summer. The overall nutrient status index is 34.33, which is not eutrophic. (2) The single-factor evaluation method is simple and suitable for rapid identification of excessive pollutants, but cannot reflect the water quality. the Nemerow index method takes into account the weight of each evaluation factor in the river water quality, and is suitable for making a comprehensive evaluation of the river water quality, but has a certain degree of subjectivity when classifying the water quality. The fuzzy comprehensive evaluation method is suitable for reflecting the influence of different evaluation factors on water quality by calculating the weight and membership degree of each evaluation factor, but the calculation is complicated.The Integrated Nutrient Status Index method is suitable for determining whether eutrophication is occurring in a water body and cannot determine the water quality category.

scholarly journals Evaluation and Dynamic Mechanism of Ecological Space in a Densely Urbanized Region During a Rapidly Growing Period—A Case Study of the Wu-E-Huang-Huang Metropolitan Interlocking Region

2019 ◽  
Vol 12 (1) ◽  
pp. 73
Author(s):  
Zhiyong Wang ◽  
Tixing Yang ◽  
Helin Liu ◽  
Man Yuan ◽  
Ji Luo ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Road Traffic ◽  
Comprehensive Evaluation ◽  
Ecological Factors ◽  
Growing Period ◽  
Sensitive Areas ◽  
Landscape Value ◽  
Factor Evaluation ◽  
Four Levels ◽  
Urbanized Region

Ecological space in a densely urbanized region plays a very important role in its development. Therefore, a scientific evaluation of ecological spaces in a densely urbanized region is the main prerequisite for corresponding ecological space planning. Taking the Wu-E-Huang-Huang Metropolitan Interlocking Region as the study area, the paper selects six types of ecological factors, including the location index, land status, terrain conditions (elevation, slope), hydrological conditions (rivers, lakes), landscape value, and road traffic. By using a single factor evaluation and a multi-factor comprehensive evaluation method involving GIS, the paper presents an evaluation of the ecological space conditions of the Wu-E-Huang-Huang Metropolitan Interlocking Region. In line with the result, the ecological environment of the region is divided into four levels: highly sensitive areas, sensitive areas, weakly sensitive areas and insensitive areas. On this basis, the underlying problems and mechanisms are explored further.

scholarly journals Analysis and Diagnosis of Water Environment Pollution Sources of Tonggu Lake in Fuling District, Chongqing City

2021 ◽  
Vol 293 ◽  
pp. 01018
Author(s):  
Xiaolei Zheng ◽  
Tao Yang ◽  
Gaoxiang Liu
Keyword(s):  
Laboratory Data ◽  
Water Environment ◽  
Ecological Environment ◽  
Water Bloom ◽  
Environment Pollution ◽  
Chongqing City ◽  
Site Survey ◽  
Quality Testing ◽  
Water Blooms

As an important urban lake in Fuling District, Chongqing City, there is water blooms in Tonggu Lake, which affect the ecological environment. This study analyzed and studied the external and internal status of water pollution through site survey, water quality testing and analysis, and laboratory data analysis, and diagnosed the water environment of Tonggu Lake, which is helpful for providing strong data support for the follow-up solution to the problem of water bloom in Tonggu Lake.

Status of water environment pollution in the Xixi Wetland and its ecological treatment countermeasures

2009 ◽  
Vol 4 (2) ◽  
pp. 228-232 ◽  
Author(s):  
Wenyue Chen ◽  
Jiemin Zheng ◽  
Zhongquan Li ◽  
Guozheng Shen ◽  
Yuchen Li
Keyword(s):  
Water Environment ◽  
Environment Pollution ◽  
Ecological Treatment ◽  
Xixi Wetland

The Research of Design Method on Green Modular that Oriented Construction Machinery

2014 ◽  
Vol 1049-1050 ◽  
pp. 828-832
Author(s):  
J.R. Yang
Keyword(s):  
Evaluation Method ◽  
Modular Design ◽  
Comprehensive Evaluation ◽  
Design Method ◽  
Fuzzy Comprehensive Evaluation ◽  
Element Analysis ◽  
Construction Machinery ◽  
Comprehensive Evaluation Method ◽  
The Finite Element Analysis ◽  
Factor Evaluation

The aim of this study was to obtain the method of the green design and modular design that oriented construction machinery products. A variety of modern design tools such as the finite element analysis software package and optimize design package and a two-factor evaluation fuzzy modelare used to analyze and Evaluation the green degree and the module degree of the construction machinery. Some modern mathematical tools such as AHP and fuzzy comprehensive evaluation method are used to calculate and evaluate the green degree and the module degree in construction machinery design. The proposed design method can meet the requirements of the green degree and the module degree of the construction machinery.

The Research and Actualize of the Quality Management System’s Effectiveness Evaluation

2010 ◽  
Vol 26-28 ◽  
pp. 547-552
Author(s):  
Shi Lin Feng
Keyword(s):  
Quality Management ◽  
Evaluation System ◽  
Quality Management System ◽  
Comprehensive Evaluation ◽  
Evaluation Index ◽  
Effectiveness Evaluation ◽  
Evaluation Result ◽  
Improvement Measure ◽  
Comprehensive Evaluation System ◽  
Set Up

To guarantee the run effectiveness of the quality management system(QMS), a comprehensive evaluation system of the QMS’s effectiveness is brought forward. In the evaluation system, first the evaluation flow chart is set up; Second the evaluation index is given out; Third the evaluation result is given out by the calculate of the grey integration evaluation arithmetic. The organization can find out why the effectiveness of the QMS is weak and establish improvement measure from the comprehensive evaluation result.

scholarly journals A new strategic tool for internal audit of the company based on fuzzy logic

2012 ◽  
Vol 9 (2) ◽  
pp. 653-666 ◽  
Author(s):  
Aleksandar Pesic ◽  
Duska Pesic ◽  
Andreja Tepavcevic
Keyword(s):  
Fuzzy Logic ◽  
Comprehensive Evaluation ◽  
Internal Audit ◽  
Organizational Factors ◽  
Original Method ◽  
Management Tool ◽  
Internal Factors ◽  
Factor Evaluation ◽  
Evaluation Matrix ◽  
Supply Information

Since the internal audit of the company is essential to supply information needed for the effective management and improvement of the competitive position, the purpose of this paper is to introduce an innovative strategic management tool for the assessment of internal organizational factors that overcomes some limitations of traditional appraisal methods, and also enables more comprehensive evaluation of the company?s internal environment. Although the classical Internal Factor Evaluation matrix (IFE matrix) is widely used, it has some constraints, such are lack of considering the ambiguity and vagueness of the internal factors. An original method - FSIF (Fuzzy Synthesis of Internal Factors) represents a systematic approach that incorporates fuzzy logic in order to better describe real situation. Proposed FSIF method well serves the needs of modern Management information system because it provides monitoring of internal development of an organization through time and also comparing different organizations taking into account various factors and weights.

Fuzzy Comprehensive Evaluation of Water Quality Management Information System

2014 ◽  
Vol 1044-1045 ◽  
pp. 486-489
Author(s):  
Xin Wang ◽  
He Pan
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Theory ◽  
Water Quality Management ◽  
Water Environment ◽  
Prediction Method ◽  
Fuzzy Comprehensive Evaluation ◽  
Good Choice ◽  
Water Resources Protection ◽  
Set Up

Water environment assessment is a basic and important work of water resources protection. We set up a fuzzy comprehensive evaluation of water environment based on fuzzy theory and prediction method in this paper. The comprehensive assessment of water environmental quality relates to complicated phenomena and interaction of multi-factor of evaluation. There are plenty of fuzzy phenomena and fuzzy concepts, therefore, make quantitative processing by the comprehensive evaluation method of fuzzy is a good choice to get good results.

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