纸质出版:2003
移动端阅览
烟台地区耕地资源流向及宏观驱动机制研究[J]. 水土保持学报, 2003,(6):22-26.
Direction and Macro-Driving Mechanism for Changes in Arable-Land Area in Yantai Region[J]. 2003, (6): 22-26.
利用改革开放20多年来烟台地区耕地统计资料和近5年土地详查与变更数据
研究揭示了该区耕地资源利用与变化的基本特征
耕地数量变化的基本过程、空间差异及耕地流向
初步探讨了耕地数量变化的主要驱动因子及其影响机制
得出以下结论:(1)20多年来
烟台地区耕地数量呈明显的波动减少趋势
经历了缓慢减少至急剧减少到缓慢减少的变化过程
并在1985年前后、1987~1990年和1991~1993年出现了3次明显的耕地流失高峰;(2)耕地的主要流向是工矿用地、居民点和各类交通用地以及果园
耕地的增加主要是未利用土地的开垦和工矿用地的整理与复垦;(3)经济发展、人口增长和政策是耕地面积变化的主要宏观驱动因子
耕地数量变化过程中的明显突变与国家宏观政策背景相关联
耕地快速减少在发生时间上与经济的过热增长基本同步
在空间分布上与地区经济发展速度和水平的差异相一致;此外
人口增加对耕地减少的驱动也不可忽视.
This paper has revealed the characteristics of arable-land resources and utilization
the basic process and regional difference of change in arable-land area according to the statistics data of arable-land area during the past 20 odd years of the reform and opening to the outside world and detailed-investigation of land use during the recent five years. Also
the driving mechanism for the changes in the cultivated land area is discussed. The main conclusions are shown below: (1) There is a trend of obvious fluctuant decrease in arable-land area during the past 20 odd years. The changes of arable-land undergo the process from gently decrease to steep decrease to slow decrease. During the process
there are three height periods of decrease in arable-land; round about 1985
1987 to 1990 and 1991 to 1993 respectively. (2) The decreased arable-land is mainly inverted to project and mine land
residential area
all kinds of traffic lands and orchard. The increased arable-land mainly comes from exploitation and reclamation of non-utilized land and arrangement and resuming of project and mine land. (3) The economic development
population growth and policy are the dominant macro-driving factors in decrease of cultivated land area in Yantai. The obvious break during the change process of arable-land is related to the national macro-policies. The rapid decrease of cultivated land area coincided in time with the overheated economic growth resulting from the direct investment in fixed assets. Spatial distribution of the decrease in arable-land matched the differences in speed and scale pf economic growth between different regions of Yantai area. .Furthermore
the decrease in arable-land because of population increase cannot be ignored.
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