吉首大学学报(自然科学版) ›› 2020, Vol. 41 ›› Issue (6): 70-73.DOI: 10.13438/j.cnki.jdzk.2020.06.013

• 特色专栏:武陵山片区研究 • 上一篇    下一篇

张家界市永定区县域耕地保有量预测

陈铭,谢欢,彭芯竹,周雅金,谭云仙,庄大春   

  1. (1.福建师范大学地理科学学院,福建 福州 350000;2.吉首大学土木工程与建筑学院,湖南 张家界 427000;3.湖南师范大学资源与环境科学学院,湖南 长沙 410000;4.湖南省地质测绘院,湖南 衡阳 421000)
  • 出版日期:2020-11-25 发布日期:2021-02-04
  • 通讯作者: 庄大春(1962—) ,男,湖南桃源人,吉首大学土木工程与建筑学院副教授,硕士生导师,主要从事土地利用研究.
  • 基金资助:
    2018年吉首大学校级科研课题

Prediction of Cultivated Land Quantity in Yongding District, Zhangjiajie

CHEN Ming, XIE Huan, PENG Xinzhu, ZHOU Yajin, TAN Yunxian, ZHUANG Dachun   

  1. (1. School of Geographical Sciences, Fujian Normal University, Fuzhou 350000, China; 2. School of Civil Engineering and Architecture, Jishou University, Zhangjiajie 427000, Hunan China; 3. School of Environmental Science, Hunan Normal University and Environmental Science, Changsha 410000, China; 4. Hunan Geological Survey and Mapping Institute, Hengyang 421000, Hunan China)
  • Online:2020-11-25 Published:2021-02-04

摘要:以张家界市永定区为案例区,在分析区域耕地利用现状、耕地动态变化的基础上,运用粮食安全法、供需平衡法和趋势外推法分别预测2020年、2030年、2035年单一目标约束下的区域远景耕地保有量,再通过层次分析法对预测结果进行权重赋值,从而建立了一个多目标组合模型.利用组合模型对多目标约束下区域远景耕地保有量进行预测,最终得到永定区2020年、2030年、2035年的耕地保有量分别为30 423.35,29 515.76,29 321.66 hm,这说明耕地保有量整体上呈减少趋势但减少速度有所放缓.

关键词: 县域, 耕地保有量, 目标约束, 预测, 永定区

Abstract: Taking Yongding District, Zhangjiajie as an example, based on the analysis of the current characteristics of  cultivated land utilization and the dynamic changes, the paper defines  three objectives of reserving  cultivated land, namely food security, economic security and ecological security. Using the methods of food security method, supply-demand balance and trend extrapolation method to predict the prospective cultivated land quantity under the single target restriction in 2020,2030 and 2035, the Analytic Hierarchy Process (AHP) is used to assign the weights of the prediction results, and a multi-objective combined model is established. The total cultivated land tenure in Yongding District in 2020,2030 and 2035 is 30 423.35,29 515.76,29 321.66 8hm respectively. This indicates that the overall trend of reduction of cultivated land  is decreasing.

Key words: county, cultivated land reserved, target constraint mechanism

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