Research Progress on Ecological Security Evaluation of Land in China

2014 ◽  
Vol 1010-1012 ◽  
pp. 264-269
Author(s):  
Jian Chun Fu ◽  
Wu Di

Land Ecological Security, the land ecological system which embraced various organic and inorganic above the surface of land is not damaged. Land Resource Ecological Security is a healthy or balanced status means the land resource is not or less threatens. From the two statements, both have similar meaning. The evaluation of the land ecological security is a meaningful and predictable evaluation which is about earth usage result of the macro-restructure and possible impact on environment and ecology, and which is guideline to keep the environment uninfluenced and district ecology safe from the earth usage planning. Based on summarizing the recent research domain, research target, research time, parameter of evaluation, and methods, this paper analyzed the new research progress.

Author(s):  
Xiao Xiao ◽  
Yong Chen ◽  
Jinghua Ruan ◽  
Qiang Hong ◽  
Yong Gan

Author(s):  
Yong Zhu ◽  
Shihu Zhong ◽  
Ying Wang ◽  
Muhua Liu

China experienced rapid urbanization and socioeconomic development at an unusual rate during the past four decades. Against such background, land use evolution and land ecological security have both been affected in a volatile way. Therefore, it is necessary to investigate the land use and the land ecological security in China. However, the traditional assessment approaches have paid more attention to the environmental and economic factors than the sustainable development of ecology, which cannot comprehensively assess the land ecological security. From the perspective of ecological sustainable development, this study identifies 3 main factors and 17 sub-factors. We also construct a model to integrate the FCE approach with the AHP. The results show that from 2004 to 2017, China’s land use structure was unbalanced. The construction land, mining land, and cultivated land increased rapidly, leading to the shrinkage of ecological land. Moreover, the weight of the sustainable development of resources and the environment, economic sustainable development, social sustainable development are 0.3341, 0.3780, and 0.2879, respectively, demonstrating that economic sustainable development is the most important factor affecting land ecological security. Finally, although the value of comprehensive land ecological security in China has been on the rise from 2004 to 2017, it remains at an unsecured level. Moreover, the value of the sustainable development of resources and the environment has been declining since 2011 and is lower than the values of economic sustainable development and social sustainable development. This study demonstrates that more attention should be paid to enhancing land ecological security, especially promoting the sustainable development of resources and the environment.


PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241618
Author(s):  
Chen Zhu ◽  
Yuping Li ◽  
Luxuan Zhang ◽  
Yanchao Wang

To provide a theoretical basis for sustainable land resource utilization and a reference for areas with similar natural conditions, an evaluation index for land-based ecological security was constructed based on the Driving force-Pressure-State-Impact-Response (DPSIR) model and the improved analytic hierarchy process (IAHP) and entropy methods, and the land-based ecological security status of Xingtai city from 2006 to 2017 was evaluated. Then, the obstacles to land-based ecological security were diagnosed. The results show that the values of the comprehensive evaluation index of land-based ecological security were 0.28–0.66 in the period from 2006 to 2017. The value of the index of land-based ecological security was low in the first seven years and gradually improved in the last five years of the study period. However, the overall situation was grave, and the ecological security conditions were poor. The main obstacles to land-based ecological security were the usage of pesticides, investment in environmental pollution treatments, the degree of machine cultivation, the rate of cultivation and the usage of fertilizer in Xingtai city. Based on the results of the land-based ecological security evaluation and the main obstacles identified in Xingtai city, this paper proposes management strategies and suggestions for improving land-based ecological security in Xingtai city. The specific proposals are as follows: vigorously develop green agriculture, increase investment in environmental pollution control, increase input in science and technology, and strengthen supervision and management of land use.


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