CAJ | 학술논문

根据河北省1980-2009年相关数据,在耕地-粮食-人口系统动态分析的基础上,计算耕地压力指数,分析该指数的时空动态变化及成因.结果表明:1980年以来河北省耕地面积及其人均量持续减少;粮食总产量及人均产量呈现增加-减少-增加的变化趋势;最小人均耕地面积和耕地压力指数呈现减小-增大-减小的相似变化趋势;省内各市耕地压力指数差异较大,北部地区耕地压力指数波动大且耕地压力明显.针对问题提出耕地-粮食-人口系统协调发展的调控重点.
근거하북성1980-2009년상관수거,재경지-양식-인구계통동태분석적기출상,계산경지압력지수,분석해지수적시공동태변화급성인.결과표명:1980년이래하북성경지면적급기인균량지속감소;양식총산량급인균산량정현증가-감소-증가적변화추세;최소인균경지면적화경지압력지수정현감소-증대-감소적상사변화추세;성내각시경지압력지수차이교대,북부지구경지압력지수파동대차경지압력명현.침대문제제출경지-양식-인구계통협조발전적조공중점.
@@@@First, the pressure index on arable land was calculated based on the data of arable land, grain and population of Hebei Province from 1980 to 2007. Then, the causes of dynamic change of pressure index on arable land and its Spatial and Temporal Variations were analyzed. The results are as follows:(1) Total arable land and its per capita volume has continued to decrease;(2) Total grain output and per capita output show the trend of increasing-decreasing-increasing;(3) Affected by the trends of total grain output and per capita output, minimum arable land acreage per capita and pressure index on arable land show the similar trend of decreasing-increasing-decreasing. In the end, the regulation focus on cropland-grain-population system was proposed.