摘要
为了解临夏州耕地资源的可持续发展状况,运用生态足迹模型对临夏州2002—2015年耕地的生态足迹进行动态分析和研究。研究结果表明:2002—2015年,临夏州人均耕地生态足迹由0.2858 hm^2/人增长至0.4753 hm^2/人,增长了66.31%。2002—2015年,人均耕地生态承载力从0.2775 hm^2/人下降至0.2431 hm^2/人,下降了12.40%,呈下降趋势。临夏州耕地未出现生态盈余,人均耕地生态赤字由0.0083 hm^2/人增长至0.2322 hm^2/人,增长了26.98倍,整个研究时间尺度内生态赤字呈较快增长趋势。表明临夏州农业生产超出了耕地的生态承载力范围,再加之人口的持续增长,人地关系愈发紧张,引起耕地生态系统不稳定的原因在不断加剧,临夏州耕地资源的利用为不可持续发展状态,最后根据存在问题提出了一些建议。
To study the sustainable development state of arable land resource in Linxia prefecture, the authorsused the model of ecological footprint to dynamically analyze the ecological footprint of arable land in Linxiaprefecture during 2002-2015. The results showed that per capita ecological footprint of arable land in Linxiaprefecture increased from 0.2858 hm^2 to 0.4753 hm^2, which increased by 66.31% during 2002-2015.Ecological capacity of per capita decreased from 0.2775 hm^2 to 0.2431 hm^2, which decreased by 12.40%during 2002-2015. Arable land in Linxia prefecture did not have ecological surplus, ecological deficit of percapita grew from 0.0083 hm^2 to 0.2322 hm^2, which increased by 26.98 times. Throughout the study time scale,the ecological deficit showed a rapid growth trend. The results showed that agricultural production of arableland resources in Linxia prefecture was beyond the scope of ecological capacity, coupled with the growth ofpopulation, the relation between people and arable land became more and more tense, resulting in growinginstability of arable land ecosystem, and the use of arable land resources was in an unsustainable state. Finally,the authors put forward some recommendations accordingly.
出处
《中国农学通报》
2018年第2期35-41,共7页
Chinese Agricultural Science Bulletin
基金
临夏州科技计划项目"临夏州耕地地力评价项目"(2016-N-2-007)
关键词
耕地
生态足迹
生态承载力
生态赤字
建议
arable land
ecological footprint
ecological capacity
ecological deficit
recommendations
