Three Parallel Rivers World Natural Heritage Hongshan District Ecological Security Assessment

2012 ◽  
Vol 610-613 ◽  
pp. 673-676
Author(s):  
Hui Li ◽  
Si Qi Wang ◽  
Wen Xi Wang ◽  
Qiuchen Duan ◽  
Guo Yan Li
Keyword(s):  
Driving Forces ◽  
Image Interpretation ◽  
Safety Evaluation ◽  
Evaluation Index System ◽  
Security Level ◽  
Ecological Security ◽  
Security Assessment ◽  
Ecological Safety ◽  
Natural Heritage ◽  
World Natural Heritage

Hongshan district is a typical region in Three Parallel Rivers World Natural Heritage site of China. In recent years, human factors lead to series ecological security problems. Ecological safety assessment is an important basis to study regional ecological security situation. Using 2006 and 1990 time image interpretation data, we have built Driving forces- Pressure- State- Impact- Responses (DPSIR) model by GIS and structured ecological safety evaluation index system. Using Spss17 etc software and according to the weight and ecological safety factor calculation evaluated ecological safety in the area, and got the ecological security level space differences. The results show that three towns in the area 1990 to 2006 ecological safety evaluation, Gezan Village ecological security synthetical index reduced from 0.3335 to 0.4550, and the ecological security level dropped from 4 to 5, and in extremely insecurity state; Dongwang Village increased from 0.5252 to 0.5707, level keep 4, belong to quite insecurity state; Jiantang Township increased from 0.6438 to 0.6672, level keep 3, belong to insecurity state. We proposed ecological safety protection suggestions.

Yunnan Haba Snow Mountain Ecological Safety Evaluation Based on the Landscape Ecological Pattern

2014 ◽  
Vol 522-524 ◽  
pp. 537-540
Author(s):  
Hui Li ◽  
Fan Tao Meng ◽  
Zhi Ying Li ◽  
Cong Cong Wang ◽  
Pan Li ◽  
...  
Keyword(s):  
Coniferous Forest ◽  
Safety Evaluation ◽  
Security Level ◽  
Ecological Security ◽  
Ecological Safety ◽  
Safety Planning ◽  
Broad Leaved Forest ◽  
Land Ecological Security ◽  
Landscape Ecological ◽  
Leaved Forest

Land ecological security research has gradually become concerned field on global. Using on the Haba Snow Mountain as an example try to discuss the evaluation of ecological security based on change of the landscape ecological pattern in the paper. In GIS, RS and GPS support and accordance with the principles of landscape ecology and using new grid map method has been 1993 and 2006 Haba Snow Mountain ecological safety evaluation and space differentiation. There are temperate coniferous forest, grassland, sclerophyll broad-leaved forest, warm coniferous forest, water area, residential land, semi-humid evergreen broad-leaved forest, ice and snow land nine landscape types, and temperate coniferous forest and grassland are dominant landscape in the study area, both area has accounted about 67% of the total area. The results show that from 1993 to 2006 the whole landscape pattern has changed less in the area. Land ecological security level space differentiation is very obvious. Ecological security level high altitude area is superior to low altitude area, the core area is superior to the edge area, north area is superior to the southern area. Land ecological security in the study area whole is in good level. From 1993 to 2006 years land ecological security level has declined in the area. Research on ecological safety planning to provide basis for ecological safety planning and for similar high mountain canyon area also has reference value.

A Study of Ecological Security Assessment for Natural Reserve

2015 ◽  
Vol 1092-1093 ◽  
pp. 1081-1086
Author(s):  
Zhao Yan Diao ◽  
De Rong Su ◽  
Shi Hai Lv ◽  
Zhi Rong Zheng ◽  
Sheng Xing Ye ◽  
...  
Keyword(s):  
Landscape Pattern ◽  
Spatial Information ◽  
Ecological Security ◽  
Security Assessment ◽  
Ecological Safety ◽  
Topographic Map ◽  
Safety Index ◽  
Dynamic Changes ◽  
Natural Reserve ◽  
Safe Area

Based on TM remote sensing image and topographic map, the spatial information of landscape pattern was extracted in study areas in 1990, 2000 and 2010. With the principles and methods of landscape ecology, land use/cover change, ecosystem service values were selected to construct the ecological safety index which was used to quantitatively analyze the dynamic changes of landscape pattern and elucidated ecological safety status in study area. Result showed that During the 20 years from 1990 to 2010, as human factors interference increase, the farmland and construction land increased by 21.11% and 15.38% respectively, the grassland area is reduced by 27.57%.Cropland had an increased trend during the period of 1990 to 2010 period, The wood land and swamp land had an increased trend during the period of 1990 to 2000 area also, but reduced during from 2000 to 2010.From 1990 to 2010, the whole study area lied in the level of relatively safer, but the safe area was reduced the amount of 4967 ha during 2000 to 2010. The relatively safer land areas was increased first then reduced during the whole study period, the relatively non-safer level land and relatively safer level land areas were accounting for 10.81% and 2.92% of the total area respectively.

scholarly journals Water Security Assessment of China’s One Belt and One Road Region

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 607 ◽  
Author(s):  
Zhaofang Zhang ◽  
Weijun He ◽  
Min An ◽  
Dagmawi Degefu ◽  
Liang Yuan ◽  
...  
Keyword(s):  
Carrying Capacity ◽  
Water Resource Management ◽  
Driving Forces ◽  
Water Security ◽  
Silk Road ◽  
Utilization Efficiency ◽  
Security Level ◽  
Security Assessment ◽  
Water Utilization ◽  
Environmental Systems

The sustainable development of socioeconomic and environmental systems are highly dependent on water capital and water utilization efficiency. Nowadays, a significant portion of the world is facing water security issues due to a combination of various factors. As a result, socioeconomic and environmental systems are threatened. China is also currently experiencing problems. Water security assessment helps to identify key determining factors for optimal water utilization, so the authors present the Driving Forces-Pressures-Carrying Capacity-State-Impacts-Responses (DPSCIR) water security assessment framework. Unlike previous methods, the proposed framework incorporates the carrying capacity of the environment, and as a result, yields assessment results that are more realistic. As a case study, the proposed framework coupled with the entropy method is applied to assess the water security status of the One Belt and One Road (B&R) region in China. In addition, the water security level of the provinces and municipalities in this region are simulated for the time period from 2017 to 2022 using the Grey Prediction Model. The results show that Responses, State, Pressures, and Carrying Capacity Subsystems greatly influence water security of the region. According to the assessment, water security of the area improved from 2011 to 2016. The results portray the following trend among the three subregions of the study area, the water security of the 21st Maritime Silk Road (One Road) area is better than Silk Road Economic Belt (One Belt) and the Strategy Support and Pivotal Gateway (SSPG) of B&R areas. Generally, from the evaluation results it can be concluded that only focusing on the subsystem of Responses cannot entirely address the water security problems within the B&R area. Therefore, to ensure sustainable water security in the region and in the country, the government needs to design water resource management mechanisms that take all the subsystems into account.

scholarly journals Endogenous Transmission Mechanism and Spatial Effect of Forest Ecological Security in China

Forests ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 508
Author(s):  
Xiuting Cai ◽  
Bin Zhang ◽  
Jiehua Lyu
Keyword(s):  
Forest Ecosystem ◽  
Spillover Effect ◽  
Correlation Effect ◽  
The State ◽  
Mediating Effect ◽  
Evaluation Index System ◽  
Security Level ◽  
Ecological Security ◽  
State Response ◽  
Pressure State

Forest ecological security is an important component of ecological security and national security, and it is a requirement for the sustainable development of the forestry economy. In this study, based on the pressure–state–response (PSR) model, an evaluation index system of forest ecological security was constructed regarding three aspects: the pressure on the forest ecosystem caused by human activities, the state of the forest ecosystem, and the response measures taken by humans to protect the forest ecosystem. The forest ecological security and its pressure, state, and response in 31 provinces (municipalities and autonomous regions) in China from 2004 to 2018 were evaluated. Furthermore, with the help of a mediating effect model, the Moran index, and a spatial econometric model, the interaction relationship, spatial correlation effect, and spatial spillover effect of the pressure–state–response of forest ecological security were analyzed. The results showed the following: First, during the study period, the forest ecological security of most provinces was at sensitive and critical safety levels, and the forest ecological security level in Northeast and Southwest China was generally higher than that in Northwest and East China. Second, regarding the pressure, state, and response of forest ecological security, the pressure was generally low but with an increasing trend, the state was relatively good with continuous improvement, and the response was clearly insufficient and showed a fluctuating downward trend. Third, there were six different transmission mechanisms between pressure, state, and response of forest ecological security, among which there were significant transmission barriers between pressure and response. Given these findings, we propose suggestions to promote the improvement of forest ecological security in China.

Ecological security assessment for environmental restoration and management in SW China

2020 ◽  
Author(s):  
xiaoyong Bai ◽  
huan Chen
Keyword(s):  
Environmental Management ◽  
Clustering Algorithm ◽  
Safety Evaluation ◽  
Principal Component ◽  
Vegetation Coverage ◽  
Ecological Security ◽  
Security Assessment ◽  
Single Method ◽  
Regional Ecological Security ◽  
Basic Prerequisite

<p>Regional ecological security diagnosis is the most basic prerequisite for environmental management and restoration. However, the traditional single method is greatly affected by human and difficult to quickly identify. Thus, This paper combined principal component analysis and unsupervised k-means clustering algorithm to provide a fast and efficient method for  safety evaluation of environmental management. Basing on this method, the clustering result was defined as five different levels of ecological safety zone combining with the principle of place name + landform + danger degree. The results showed that there were more than half of the study area were unsafe (56.3%), what was even more surprising was that there were many high-value of NDVI and NPP in these areas. The partition result was finally verified in order to ensure the accuracy of the partition, and it had been proved that the ecological environment is not necessarily safe where in the areas with good vegetation coverage. This article provided a new technical reference for the evaluation of ecological areas.</p>

Security Assessment Using SPA-VFS and Obstacle Factors Diagnosis of Water-Energy-Food Nexus Based on A PSR Framework

2021 ◽  
Author(s):  
Juan Ji ◽  
Junfei Chen ◽  
Tonghui Ding
Keyword(s):  
Inner Mongolia ◽  
Northwest China ◽  
Evaluation Index System ◽  
Security Level ◽  
Security Assessment ◽  
Safety Level ◽  
Global Challenge ◽  
Safe Level ◽  
Spatio Temporal ◽  
Almost All

Abstract In the context of population growth and increasingly scarce resources, the sustainability of water-energy-food nexus (WEFN) has been considered as a major global challenge. This study presented the evaluation index system of WEFN security based on the pressure-state-response (PSR) model. The set pair analysis and variable fuzzy sets (SPA-VFS) were supplied to evaluate WEFN security, which analyzed the situation and obstacles of WEFN security in Northwest China from 2008 to 2017. The results showed that, (1) In the WEFN, the pressure-subsystem in Shaanxi and Inner Mongolia was in a critical safe level; in the state-subsystem, the security level of Shaanxi was the best and the response-subsystem in Inner Mongolia and Gansu is in an unsafe level; (2) Over the years, the safety level of WEFN in the five provinces of Northwest China had obvious spatio-temporal characteristics, which was always between critical safety and unsafety, but the overall trend was positive. (3) The results of obstacle degree of three subsystems were compared as follows: pressure-subsystem state-subsystem response-subsystem. And, their obstacle factors were almost all related to water. The key to improving WEFN security in Northwest China in the future is to deal with the serious mismatch between water resources and energy resources.

scholarly journals Difference Analysis of Ecological Security Assessment Based on FAHP

2019 ◽  
Vol 131 ◽  
pp. 01046
Author(s):  
Yahao Yin ◽  
Haihong Li ◽  
Fengqiu An
Keyword(s):  
Quantitative Research ◽  
Agricultural Development ◽  
Assessment System ◽  
Security Level ◽  
Ecological Security ◽  
Security Assessment ◽  
Analytic Hierarchy ◽  
State Response ◽  
The Stability ◽  
Hierarchy Process

In this study, the important city of Guanzhong Plain-Weinan, was studied and its ecological security index changed from the year of 2000 to 2012. The stress-state-response (PSR) model was used to establish an ecological security assessment system based on agricultural development cities. The method of quantitative research including 12 indicators based on the fuzzy analytic hierarchy process (FAHP) model was constructed, and the main aspects such as the natural environment, economic society, and human activities were designed. The results showed that from 2000 to 2012, the area of ecological security and stability is gradually increasing, and the stability of the ecological environment is enhanced. The ecological security level in the central region of the country has developed well in the past 10 years, but the ecological security level in some areas has gradually increased in edge area.

Method for Urban Environmental Safety’s Integral Assessment with the Usage of Logical-Probabilistic Approach

2017 ◽  
Vol 6 (4) ◽  
pp. 75-82
Author(s):  
Н. Плуготаренко ◽  
N. Plutogarenko ◽  
А. Долгополова ◽  
A. Dolgopolova
Keyword(s):  
Population Health ◽  
Probabilistic Model ◽  
Integrated Assessment ◽  
Probabilistic Approach ◽  
Safety Evaluation ◽  
Ecological Security ◽  
Ecological Safety ◽  
Industrial Cities ◽  
Integral Assessment ◽  
Negative Factors

The work has been devoted to development of method for integral assessment of an industrial city’s level of ecological security using the logical-probabilistic approach. The basic methods for integral assessment of negative factors’ impact on industrial cities’ environment and such cities’ population health. Have been developed a logical-probabilistic model for an industrial city’s ecological safety evaluation to predict this city’s development, and method for integrated assessment of industrial city’s ecological safety using logical-probabilistic approach.

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