|Table of Contents|

Application of Matter-element Model in Ecological Security Evaluation of Soil and Water Resources

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年04
Page:
191-197
Research Field:
Publishing date:

Info

Title:
Application of Matter-element Model in Ecological Security Evaluation of Soil and Water Resources
Author(s):
REN Yongtai1; XU Dongyang2; CHENG Kun1
(1.College of Science,Northeast Agricultural University,Harbin,Heilongjiang 150030;2.Engineering College,Northeast Agricultural University,Harbin,Heilongjiang 150030)
Keywords:
natural economic and social model; object element extension model; ecological security; contribution
PACS:
-
DOI:
10.11937/bfyy.20181297
Abstract:
The ecological security of earth resources is closely related to people′s quality of life.In this paper,from the aspects of nature,economy,social security set up evaluation index system,using the ecological security evaluation index of soil and water resources has contributed to determine the index weight,the introduction of the matter-element extension theory,the comprehensive benefit of water and soil resources characteristics and the corresponding characteristic value as matter element,water and soil resources in Heilongjiang,Jilin,Liaoning ecological security evaluation.The results showed that in 2005,2010 and 2015,the ecological security level first increased and then decreased,the economic security level was lower than the ecological security level,and the natural and social security level was higher than the ecological security level.It has the best ecological security in Liaoning Province and the worst ecological security in Heilongjiang Province.Forest coverage,industrial production of ten thousand RMB,water penetration rate and other indicators have the greatest contribution to ecological security.The proportion of agricultural water use,the output water consumption of industrial ten thousand RMB and the proportion of environmental protection investment were low,which hinder the development of ecological security of water and soil resources in the region.The evaluation results could provide theoretical basis for the policy formulation of local government and environmental protection departments.

References:

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Last Update: 2019-03-26