邯郸市耕地资源压力动态变化及调控策略

Analysis of Dynamic Change of Arable Land Pressure and Its Control Strategy in Handan City

根据1978～2008年相关数据,分析了邯郸市耕地-粮食-人口系统的动态变化,计算了耕地压力指数,并分析了该指数的动态变化及成因。结果表明:1978年以来邯郸市耕地面积及其人均量持续减少;粮食总产量及人均产量总体呈增加趋势;受其影响,最小人均耕地面积和耕地压力指数呈现相似的变化趋势。最后探讨了缓解耕地压力的调控策略,指出保持区域内一定数量的耕地、种植高产作物、严格控制人口增长是缓解耕地压力的重点。

According to related data in Handan City during 1978-2008,the dynamic change of arable land-grain-population system was analyzed.The arable land pressure index was calculated,the dynamic change and causes were analyzed.The results showed that： since 1978,the arable land area and amount per capita in Handan City continuously decreased;the total grain yield and yield per capita increased;affected by that,the minimum arable land area per capita and pressure index indicated similar variation trend.Finally,strategies for releasing arable land pressure were discussed,such as maintaining a certain amount of arable land area,cultivating high-yielding crop and controlling population growth strictly.