能值-生态足迹模型支持的甘肃藏族高寒牧区可持续研究

发布时间：2018-01-26 11:33

本文关键词： 可持续发展能值生态足迹生态承载力区域能值密度甘肃藏族高寒牧区　出处：《兰州大学学报(自然科学版)》2017年03期 　论文类型：期刊论文

【摘要】：运用改进的能值生态足迹模型,对2005-2013年甘肃藏族高寒牧区可持续发展状态进行了定量分析.改进的模型运用区域能值密度计算生态承载力和生态足迹,不仅克服了传统生态足迹模型的缺陷,而且能够更真实地反映研究区生态系统的供给能力和人类对资源的消耗状况.结果表明:9 a间玛曲县和碌曲县处于可持续发展状态,生态承载力还能够支撑生态足迹的增长;夏河县处于不可持续发展状态,生态足迹增长与生态承载力不平衡,不可持续性整体呈现增强的趋势;卓尼县处于不可持续发展状态,但2010年之后有好转的趋势;合作市和天祝县处于严重不可持续发展状态,不可持续性呈现不断增强的趋势.如何改善区域发展状态已经变得尤为迫切.结合能值密度和万元GDP生态足迹等指标,对各牧区可持续发展策略进行了有益探讨.
[Abstract]:The improved emergy ecological footprint model is used. The sustainable development status of Tibetan alpine pastoral region in Gansu Province from 2005 to 2013 was quantitatively analyzed. The improved model calculated ecological carrying capacity and ecological footprint by using regional emergy density. It not only overcomes the defects of traditional ecological footprint model. The results show that Maqu County and Luqu County are in the state of sustainable development during the period of 9: 9. Ecological carrying capacity can also support the growth of ecological footprint; Xiahe County is in the state of unsustainable development, the ecological footprint growth and ecological carrying capacity are unbalanced, and the overall unsustainable trend is increasing. Zhuo Ni County is in the state of unsustainable development, but there is a trend of improvement after 2010. Cooperative City and Tianzhu County are in a state of serious unsustainable development. How to improve the status of regional development has become particularly urgent. The combination of emergy density and GDP ecological footprint and other indicators. The strategies of sustainable development in various pastoral areas are discussed.
【作者单位】：兰州大学草地农业科技学院草地农业生态系统国家重点实验室;兰州财经大学农林经济管理学院;
【基金】：国家自然科学基金项目(31170430,41471450) 国家社会科学基金项目(14CJY010)
【分类号】：F426.2;X22
【正文快照】： 自然资源是人类赖以生存和发展的基础,要保持可持续发展状态,人类对资源的消耗必须在生态承载力范围之内.随着经济、社会的不断发展,人口不断增加,人类对资源的消耗日益加剧,面临越来越多的生态环境问题:生物多样性丧失、绿地面积减小、可利用淡水资源、土地资源和平流层臭氧

【相似文献】