河北省环京14县(市、区)的土地利用潜力与效率

Land Utilization Potential and Efficiency of Hebei's Fourteen Counties Around Beijing

为摸清环京14县(市、区)土地利用状况,采用吉布斯.马丁多样化指数等方法,对河北省环京14县(市、区)的土地利用潜力与效率进行了分析。结果表明:环京14县(市、区)土地利用类型的多样化指数为0.719 1,表明土地利用多样化程度较高,各县(市、区)多样化指数差异较大;待整理农用地面积80 656.91hm2,通过土地整理可新增耕地面积3 475.94hm2,增加耕地系数为4.31%,各县(市、区)土地整理潜力同样存在较大差异;土地利用率为76.93%,土地垦殖率为15.36%,其中,涿州市、广阳区、安次区、三河市、固安县、香河县和大厂回族自治县土地利用程度很高,涞水县、怀来县、涿鹿县、赤城县、兴隆县、滦平县和丰宁满族自治县土地利用程度相对较低,虽具资源潜力,但地形地貌等客观因素增加了其开发难度。

The land utilization potential and efficiency of Hebei＇ s fourteen counties around Beijing were analyzed by using GM diversification index to study the land utilization situation. The diversification index of the land utilization type was 0. 7191 but there were very differences in the diversification index among fourteen counties. 3475. 94 hm2 agricultural acreage can be increased by consolidating 80 656. 91 hm2 farmland, which can increase by 4. 31% farmland coefficient but there were differences among fourteen Counties also. The land utilization rate and land reclamation rate was 76.93% and 15.36% respectively. Zhouzhou, Guangyang, Anci, Sanhe, Gu＇an, Xianghe and Dachang Counties had the higher land utilization rate. Laishui, Huailai, zhuolu, Chicheng, Xinglong, Luanping and Fengning Conties with the relatively low land utilization rate had a certain resources potential hut their landform feature increased the development difficulty.