摘要
根据张掖市2003-2006年土地利用变更数据,分别采用Markov与灰色GM(1,1)模型,对全市2011年和2015年土地利用结构变化进行预测,并将所得结果相互验证、对比分析,以提高预测可信度。结果表明:到2015年张掖市耕地、牧草地和未利用地将持续减少,林地和建设用地呈增长趋势;土地利用类型由耕地、园地、牧草地和未利用地向林地、建设用地转化。表6,参8。
On the basis of Markov and Gray models,this paper predicted the land use structure changes of Zhangye city. Verification and comparison between two kinds of model predicted results with the same set land use data can improve the prediction Credibility. The result showed that the area of cultivated land, unused land and grassland will decrease.And the area of forest land and construction land will increase from 2007 to 2015.In addition,the area of cultivated land,garden land and grassland will change into construction land,forest land from 2007 to 2015.
出处
《农业系统科学与综合研究》
CSCD
2009年第2期138-141,146,共5页
System Sciemces and Comprehensive Studies In Agriculture
基金
国家社会科学基金资助项目(08AMZ003)