西北林学院学报2017，Vol.32Issue(4)：178-185,228,9.DOI:10.3969/j.issn.1001-7461.2017.04.31
基于能值分析的磴口县土地生态经济系统可持续性研究
Sustainability of Land Eco-economic System in Dengkou County Based on Emergy Analysis
摘要
Abstract
Land resources are the most basic resources for the survival and development of human society.In ecologically fragile arid and desert areas,land resources are often subjected to many ecological and environmental pressures due to economic development.Therefore,it is very important to study the sustainability of land eco-economic system.In this paper,Dengkou County was chosen as the study area,and the land eco-economic system sustainability was studied systematically from 2003 to 2015 by using the energy analysis method and the methods of land use transfer matrix and dynamic degree.The results showed that 1) in Dengkou County,construction system had the greatest impact on the total energy of land in the land eco-economic system,it belonged to a serious "consumption" system with low sustainability and large environment pressure.2) The analysis of land use data and energy analysis demonstrated that in the study period,the land system of Dengkou County had experienced the process from desertification to non-desertification,indicating that the local active desertification control was fruitful.3) In the study period,the total energy input-output ratio,land sustainable utilization index were decreasing,and the land environmental load index was increasing,indicating that the sustainability of the study area was poor in this period,and the future of sustainable development is not optimistic,measures are needed to improve the situation.关键词
土地生态经济系统/能值分析/土地利用变化/磴口县Key words
land eco-economic system/energy analysis/land use change/Dengkou County分类
管理科学引用本文复制引用
方敏哲,岳德鹏,张启斌,于强,方巍..基于能值分析的磴口县土地生态经济系统可持续性研究[J].西北林学院学报,2017,32(4):178-185,228,9.基金项目
国家自然科学基金(41371189) （41371189）
“十二五”国家科技支撑计划(2012BAD16B00). （2012BAD16B00）
