中国人口·资源与环境
中國人口·資源與環境
중국인구·자원여배경
CHINA POPULATION RESOURCES AND ENVIRONMENT
2010年
4期
148-152
,共5页
粮食安全%粮食自给率%最小人均耕地面积%社会发展阶段%聚类分析
糧食安全%糧食自給率%最小人均耕地麵積%社會髮展階段%聚類分析
양식안전%양식자급솔%최소인균경지면적%사회발전계단%취류분석
grain security%grain self-sufficient ratio%minimum farmland acreage per capita%developing stages of the society%cluster analysis
采用粮食自给率结合区域最小人均耕地面积对江苏省昆山市20多年来粮食安全状况进行研究,结果表明:昆山市在2000年从粮食产区转型为粮食销区;2006年的粮食自给率仅有23%;生产力提高和作物种植结构的相互制约导致了最小人均耕地面积呈波动变化.在粮食安全未来发展趋势的分析方面,提出了依据相关社会经济指标对昆山市发展阶段进行聚类分析,然后以最新发展阶段数据进行建模的新思路.分析结果表明:昆山的粮食安全相关的社会经济指标变化确实呈明显阶段性;至2011年,昆山市粮食自给率将下降至11%;最小人均耕地面积降低至0.028 hm~2,如果该变化趋势得不到有效控制而持续较长时间,到2016年时,粮食自给率和最小人均耕地面积将分别下降至8%和0.012 hm~2.依据这些分析及预测,文章提出了坚持土地集约利用、提升耕地生产力、建立和完善粮食流通网络和拓展并强化与粮食产区之间的合作等保障粮食安全、促进地区可持续发展的对策措施.
採用糧食自給率結閤區域最小人均耕地麵積對江囌省昆山市20多年來糧食安全狀況進行研究,結果錶明:昆山市在2000年從糧食產區轉型為糧食銷區;2006年的糧食自給率僅有23%;生產力提高和作物種植結構的相互製約導緻瞭最小人均耕地麵積呈波動變化.在糧食安全未來髮展趨勢的分析方麵,提齣瞭依據相關社會經濟指標對昆山市髮展階段進行聚類分析,然後以最新髮展階段數據進行建模的新思路.分析結果錶明:昆山的糧食安全相關的社會經濟指標變化確實呈明顯階段性;至2011年,昆山市糧食自給率將下降至11%;最小人均耕地麵積降低至0.028 hm~2,如果該變化趨勢得不到有效控製而持續較長時間,到2016年時,糧食自給率和最小人均耕地麵積將分彆下降至8%和0.012 hm~2.依據這些分析及預測,文章提齣瞭堅持土地集約利用、提升耕地生產力、建立和完善糧食流通網絡和拓展併彊化與糧食產區之間的閤作等保障糧食安全、促進地區可持續髮展的對策措施.
채용양식자급솔결합구역최소인균경지면적대강소성곤산시20다년래양식안전상황진행연구,결과표명:곤산시재2000년종양식산구전형위양식소구;2006년적양식자급솔부유23%;생산력제고화작물충식결구적상호제약도치료최소인균경지면적정파동변화.재양식안전미래발전추세적분석방면,제출료의거상관사회경제지표대곤산시발전계단진행취류분석,연후이최신발전계단수거진행건모적신사로.분석결과표명:곤산적양식안전상관적사회경제지표변화학실정명현계단성;지2011년,곤산시양식자급솔장하강지11%;최소인균경지면적강저지0.028 hm~2,여과해변화추세득불도유효공제이지속교장시간,도2016년시,양식자급솔화최소인균경지면적장분별하강지8%화0.012 hm~2.의거저사분석급예측,문장제출료견지토지집약이용、제승경지생산력、건립화완선양식류통망락화탁전병강화여양식산구지간적합작등보장양식안전、촉진지구가지속발전적대책조시.
We used grain sufficient ratio as well as minimum farmland acreage per capita to describe the grain security of Kunshan in the recent two decades. Results showed that: the grain self-sufficient ratio of Kunshan dropped below 100% in the year 2000; the grain self-sufficient ratio of Kunshan in 2006 was only 23%; the minimum farmland acreage per capita fluctuated because of the enhance of farmland productivity and the changes in crop structure. In order to predict the developing trend of these indexes related to grain security, a new model which used hierarchical cluster analysis to divide the developing stages of Kunshan according to the variation of social economic indexes and then predicted using data from the recent stage was promoted. The results showed that, the grain self-sufficient ratio of Kunshan will drop to 11% in the year 2011, and the minimum farmland acreage per capita will come down to 0.028 hm~2. If this declining trend is out of control, they will drop to 8% and 0.012 hm~2 respectively in 2016.Based on the analysis and prediction, suggestions, such as enhancing land use intensity, increasing farmland output by applying agricultural techniques, establishing and consummating a network for grain transportation and distribution, and cooperating with grain producing districts, were put forward for Kunshan with an aim to guarantee grain security and ensure regional sustainable development.