福建省耕地等别空间分布特征研究

Spatial distribution characteristics of arable land grade in Fujian Province

以福建省区域内耕地质量分等成果为基础,利用面积加权和空间分析两种方法,综合分析了全省耕地等别的空间分布特征.研究结果表明,福建省内无劣等地分布,耕地平均等高于全国平均等;全省耕地等别空间分布存在差异性.结合福建省耕地保护网络化监管试点项目耕地保护评价结果发现,分布在中区和差区的耕地面积占全省总耕地面积的50%以上,且中、差区的优等地面积占全省优等地面积的75%.福建省耕地等别总体偏高,耕地等别的空间分异性受到自然条件和经济条件的影响,全省耕地等别存在下降的风险.

Taking the arable land grade assessments of districts in Fujian Province and the result of regional arable land preservation into consideration,this paper analyzed the spatial distribution characteristics of arable land grade in Fujian Province by taking advantage of area weighted method and spatial analysis. The results showed that there was no poor arable land in Fujian Province and the average grade differences among counties. According to the result of regional arable land preservation,areas got a rank III or IV in preservation assessment accounted for more than 50% of the total arable land areas of Fujian Province,and also presented 75% of the well-preserved arable land in Fujian Province. The arable land grade of Fujian Province whose spatial distribution has been affected by natural and economic conditions is on the high level,but risking of falling.