地域研究与开发
地域研究與開髮
지역연구여개발
Areal Research and Development
2010年
5期
110~113
,共null页
粮食安全 耕地压力 动态分析 灰色预测 辽宁省
糧食安全 耕地壓力 動態分析 灰色預測 遼寧省
양식안전 경지압력 동태분석 회색예측 요녕성
food security; pressure on cultivated land; dynamic analysis; gray forecast; Liaoning Province
运用“最小人均耕地面积”及“耕地压力指数”的概念和计算模型对辽宁省1997--2007年间耕地资源动态变化进行了定量分析,应用灰色系统GM(1.1)预测模型对未来15年耕地压力变化进行了预测,据此提出了耕地利用和保护对策。研究结果表明:辽宁省工业大发展以来,特别是老工业基地的振兴和城市化进程的加快。虽然占用了一些耕地,但耕地压力指数不仅没有加剧,反而呈现下降趋势,主要原因是耕地生产力在不断提高。科技进步以及生态建设的完善是未来减轻耕地压力、保障耕地、人口和粮食可持续发展的重要途径。
運用“最小人均耕地麵積”及“耕地壓力指數”的概唸和計算模型對遼寧省1997--2007年間耕地資源動態變化進行瞭定量分析,應用灰色繫統GM(1.1)預測模型對未來15年耕地壓力變化進行瞭預測,據此提齣瞭耕地利用和保護對策。研究結果錶明:遼寧省工業大髮展以來,特彆是老工業基地的振興和城市化進程的加快。雖然佔用瞭一些耕地,但耕地壓力指數不僅沒有加劇,反而呈現下降趨勢,主要原因是耕地生產力在不斷提高。科技進步以及生態建設的完善是未來減輕耕地壓力、保障耕地、人口和糧食可持續髮展的重要途徑。
운용“최소인균경지면적”급“경지압력지수”적개념화계산모형대요녕성1997--2007년간경지자원동태변화진행료정량분석,응용회색계통GM(1.1)예측모형대미래15년경지압력변화진행료예측,거차제출료경지이용화보호대책。연구결과표명:요녕성공업대발전이래,특별시로공업기지적진흥화성시화진정적가쾌。수연점용료일사경지,단경지압력지수불부몰유가극,반이정현하강추세,주요원인시경지생산력재불단제고。과기진보이급생태건설적완선시미래감경경지압력、보장경지、인구화양식가지속발전적중요도경。
The minimum area per capita of cultivated land and the pressure index on cultivated land' con- cepts and calculation models are used to quantitatively analysis the dynamics of cultivated land resources during 1997--2007 in Liaoning Province. Then the gray system GM (1. 1 ) forecasting model is applied to predict the change of pressure index on cultivated land for the next 15 years. Finally, the land use and conservation strategies are proposed. The results show that: Although the industrial development, particularly the revitalization of old in- dustrial bases and the acceleration of urbanization process in Liaoning Province took up a number of cultivated land, but the pressure index on cultivated land has not increased, instead shown a downward trend due to the continuous improvement of the cultivated land productivity. Technological advances and the strengthening of ecological construction are main approaches to reduce land pressure, to ensure the sustainable development of cultivated land, population and food security in the future.