热带地理

热带地理 ›› 2019, Vol. 39 ›› Issue (3): 410-419.doi: 10.13284/j.cnki.rddl.003130

• 论文 • 上一篇    下一篇

珠海市镇域耕地多功能性与安全耦合协调度分析

李嘉仪1，董玉祥1,2   

  1. （1. 中山大学 地理科学与规划学院//广东省城市化与地理环境空间模拟重点实验室，广州 510275；2. 中山大学 新华学院，广州 510520）
  • 收稿日期:2018-11-29 修回日期:2019-03-06 出版日期:2019-05-05 发布日期:2019-05-05
  • 作者简介:李嘉仪（1993—），女，广东广州人，硕士研究生，主要从事土地资源开发利用与保护，（E-mail）lijy199310@163.com。

Coupling Coordination Degree Analysis between Multifunctionality and Security of Cultivated Land at Town Scale in Zhuhai

Li Jiayi1 and Dong Yuxiang1,2   

  1. （1. School of Geography and Planning// Guangdong Provincial Key Laboratory of Urbanization and Geo-simulation, Sun Yat-Sen University, Guangzhou 510275, China; 2. Xinhua College of Sun Yat-Sen University, Guangzhou 510520, China）
  • Received:2018-11-29 Revised:2019-03-06 Online:2019-05-05 Published:2019-05-05

PDF (PC)

赞

摘要：

以土地利用数据和社会经济统计数据为基础，集成综合指数模型、耦合协调模型和地理探测器，从镇域尺度探讨了1990—2015年珠海市耕地多功能性与安全耦合协调度的时空变化及其影响因子。结果表明：1）珠海市镇域耕地多功能性与安全耦合协调度的演变在1990—2000年间相对平缓；而在2000—2015年间相对剧烈，总体上全市耦合协调度均值由1990年的0.65降为2015年的0.59。2）珠海市镇域耕地多功能性与安全耦合协调度下降区域主要分布在东部，上升区域主要分布在西部，整体呈西部耦合协调度高于中部和东部的分布格局。3）根据地理探测器的结果可知，土地垦殖率、种植业占GDP比重、各类作物产量、化肥农药施用量等是珠海市镇域耕地多功能性与安全耦合协调度演变的主导影响因子。

关键词: 耕地多功能性, 耕地安全, 耦合协调度, 地理探测器, 珠海市

Abstract:

Cultivated land can be regarded as a coupled system defined by human-nature interaction. The multifunctionality and security of it are therefore critical to the sustainable development of both the cultivated land and the human society. Furthermore, studying the coupled and coordinated development between the multifunctionality and security of the cultivated land is also the key to enhance its utilization and protection. For the town of Zhuhai, in particular, it is important to carry out such a study in a period of rapid urbanization. Therefore, taking Zhuhai as the study area, and utilizing land use data and socio-economic statistical data covering the period 1990-2015, this work investigates the temporal and spatial variation of the coupling coordination degree between multifunctionality and security of cultivated land by means of the comprehensive index evaluation method and the coupling coordination degree model. Besides, by using a new statistical method, the Geodetector, this article work also reveals the main factors controlling the development of the coupling coordination degree. Conclusions are drawn as follows: 1) the temporal variation of the coupling coordination degree between multifunctionality and security of cultivated land at town scale in Zhuhai is relatively steady in the period 1990-2000 but drastic in the period 2000-2015; in general, it decreases from 0.65 to 0.59 from 1990 to 2015; 2) the spatial variation of the coupling coordination degree exhibits an increasing trend in the western area, and a decreasing trend in the eastern area from 1990 to 2015; on the whole, its spatial distribution pattern shows that the western area is higher than the central and eastern areas; 3) according to the Geodetector, different factors have a different impact on the development of the coupling coordination degree: land reclamation rate, planting industry's proportion in GDP, output of crops, amount of chemical fertilizers and pesticides are the main factors affecting the development of coupling coordination degree, since they affect the cultivated land resource endowment, the utilization efficiency, the planting structure, and the input of chemical substances.

Key words: cultivated land multifunctionality, cultivated land security, coupling coordination degree, Geodetector, Zhuhai