贵州省耕地质量时空格局及变化趋势分析

发布时间：2018-04-14 12:00

本文选题：耕地质量 + CA-Markov模型　；参考：《水土保持研究》2017年06期

【摘要】：为深化对贵州省耕地质量空间格局及变化趋势的认识,合理制定省级耕地质量保护制度及决策提供依据,基于1989年、1995年、2000年3期贵州省土地利用规划条件下的耕地数据,定量分析了耕地质量时空变化规律及发展趋势,组合耕地模糊优选模型与理想点法构建评价模型评价了各年的耕地质量,并运用CA-Markov模型和GIS空间分析技术模拟了贵州省2020年耕地空间分布状况。结果表明:(1)贵州省6类土地利用类型间均有相互转移,耕地转移为其他的土地利用类型中63.6%仍然为农业用地,如林地、草地,土地利用性质变化不大;(2)其他土地利用类型均有向耕地转移的趋势,转移的面积以耕地为主,且转移面积大于耕地转移出去的面积,耕地面积保有量在逐渐上升;(3)贵州省耕地所处环境在不断的优化中,优质耕地资源得到了有效保护和利用,优等地的面积有逐渐扩大的趋势;(4)预测得到的2020年贵州省耕地优等地、高等地、中等地、低等地的面积占总耕地面积的比例分别为46.9%,42.2%,10.8%,0.1%,其中优等地主要集中于水系较为发达和农业资源丰富的地区。
[Abstract]:In order to deepen the understanding of the spatial pattern and change trend of cultivated land quality in Guizhou Province, and to rationally formulate the provincial cultivated land quality protection system and provide the basis for decision-making, based on the cultivated land data under the conditions of the land use planning of Guizhou Province in 1989, 1995 and 2000.The temporal and spatial variation law and development trend of cultivated land quality were quantitatively analyzed, and the cultivated land quality was evaluated by combining the fuzzy optimal selection model with the ideal point method to evaluate the cultivated land quality in each year.The spatial distribution of cultivated land in Guizhou province in 2020 was simulated by using CA-Markov model and GIS spatial analysis technology.The results showed that there were six types of land use types in Guizhou Province, and 63.6% of the other land use types were still agricultural land, such as forest land and grassland.Other types of land use have a tendency to transfer to cultivated land, the area transferred is mainly cultivated land, and the transferred area is larger than that of cultivated land transfer.The cultivated land area is increasing gradually in Guizhou province. The environment of cultivated land in Guizhou province is continuously optimized, and the high quality cultivated land resources have been effectively protected and utilized.The area of the superior land has a tendency of gradually expanding.) the area of cultivated land in Guizhou Province in 2020 is predicted to be superior, high, and moderate.The proportion of the low land area to the total cultivated land area is 46.9% and 42.2% and 10.8%, respectively. Among them, the superior land is mainly concentrated in the areas where the water system is more developed and the agricultural resources are rich.
【作者单位】：铜仁学院;
【基金】：贵州省社会科学院省领导指示圈示课题(QS2015024-2) 贵州省教育厅人文社会科学研究项(2016qn10) 贵州省教育科学规划课题(2015C042) 贵州省科技计划项目黔科合LH字[2016]7305号
【分类号】：F323.211

【相似文献】