基于耦合协调模型的河南省土地生态质量与经济协调发展研究

The Coordination Development of Land Ecological Quality and Economy in Henan Province Based on Coupled Coordination Model

随着城镇化和工业化的推进,区域土地生态问题凸显,土地生态逐渐成为了研究的热点.经济的发展是驱动土地生态质量发生变化的重要因素,本文以"基础-结构-胁迫-效益"和"总体-结构-效率"为框架,构建"土地生态-经济"耦合协调系统评价指标体系,对河南省126个县市区的土地生态质量和经济发展水平的协调性及其空间分异特征进行了研究,以期为河南省实现土地生态和经济可持续发展与保障国家粮食安全提供借鉴.结果表明:(1)河南省的土地生态优势型县市区数量(82个)多于经济优势型(44个),呈现以中北部地区为中心向外围经济优势逐渐减弱、土地生态承载能力逐渐加强的态势.(2)研究区土地生态和经济发展耦合程度较高,但是协调发展水平偏低,仅有15个县市区处于过渡协调发展类,其他区域均为失调类型.(3)各县市区协调系统的协调性在全局和局部均存在显著空间自相关特征,协调度高值集聚区主要集中在河南中北部,低值集聚区主要在河南东部.

With the advancement of urbanization and industrialization,regional land ecological problems have become more prominent,and land ecology has gradually become a research hotspot.Economic development is a crucial factor driving the change of land ecological quality.Based on the framework of"basic-structure-stress-profit"and"whole-structure-efficiency",The evaluation index system of"land ecology-economy"coupling and coordination system was constructed,and the coordination of land ecological quality and economic development level and its spatial differentiation characteristics in 126 counties and districts of Henan Province were studied.The research is expected to provide a reference for Henan Province to achieve sustainable development of land ecology and economy and to ensure national food security.The results show that:(1)There are 82 land ecological dominant counties more than 44 economic dominant counties,and economic advantages are gradually weakened and the ecological carrying capacity of the land is gradually strengthened with the central and northern regions as the center;(2)The coupling degree of land ecology and economic development in the study area is relatively high,but the level of coordinated development is low.Only 15 counties and cities are in transitional coordinated development,and other areas are of the type of imbalance;(3)The coordination of the"Land ecology and economy"coordination system in all counties and cities has significant spatial autocorrelation characteristics both globally and locally.The high-value clusters with coordinated development degree are mainly concentrated in the north-central part of Henan,and the low-value clusters are mainly in the eastern part of Henan.