Abstract:

Exploring the temporal-spatial coupling rules between territorial functions transformation level and economic development degree under the reorganization of rural development factors is helpful to coordinate the human-land relationship and promote the integration of urban and rural development. On the basis of five cross-sectional data of the county scale of Jiangsu Province in 1997, 2002, 2007, 2012 and 2017, this paper discusses the characteristics of rural territorial functions transformation and its temporal-spatial correlation rule with economic development level by constructing rural transformation degree model and coupling coordination model. The results show that : (1) During the study period, the level of rural territorial functions transformation in Jiangsu Province gradually picked up after decrease, and the spread of high-speed transformation areas towards southern Jiangsu Province has become apparent. At the end of the study, the hot spots of rural territorialfunctions transformation with medium and high-speed in northern Jiangsu gathered, and the transformation degree in central Jiangsu needs to be improved. (2) The spatial agglomeration effect of rural economic growth in Jiangsu Province has gradually strengthened, and the effect of rural economic acceleration in northern Jiangsu was remarkable. The spatial balance and radiate diffusion trend of economic growth among counties became obvious. (3) The coupling and coordinated development pattern of rural territorial functions transformation and economic development in Jiangsu Province was basically consistent. The high-level coordinated development in the early stage of the study evolved into the low-level coordinated development in the middle stage, and finally formed the orderly and high-quality coordinated development again at the end of the study.According to the coupling and coordinated relationship between the rural territorial functions transformation and economic development, we further defined six types including economic lag zone, coordination lag zone, economic upgrading zone, transformation and upgrading zone, optimization and upgrading zone, and advanced development zone. We also further clarify the development direction and driving mechanism of various collaboration relationships.

Key words: rural transformation, economic development, time-frequency cycle, coupling and coordination relationship, development path, Jiangsu Province

摘要：

明晰乡村地域功能转型特征、发挥经济比较优势是积极响应乡村振兴战略的重要举措。基于江苏省县域尺度1997、2002、2007、2012、2017年5期截面数据，通过构建乡村转型度模型和耦合协调度模型，探究乡村地域功能转型水平与经济发展程度的时空耦合规律。结果表明：①研究期内，江苏省乡村地域功能转型水平先下降后逐渐回升，高速转型地域单元南部扩散趋势明显。研究末期苏北地区乡村地域功能中高速转型单元热点集聚，苏中地区乡村地域功能转型发展程度有待提升。②江苏省县域乡村经济增长空间集聚效应逐渐增强，苏北地区县域乡村经济加速增长成效显著，县域经济增长空间均衡化和辐射扩散趋势明显。③江苏省县域乡村地域功能转型与经济发展的耦合协调格局具有基本一致性，研究初期的高水平协同发展演化为研究中期的低水平耦合协调发展，研究末期再次形成有序优质协调发展。二者耦合协调作用形成6种空间协同类型，具体为经济滞后区、协同滞后区、经济提升区、转型提升区、优化升级区和先行发展区。

关键词: 乡村转型, 地域功能, 经济发展, 耦合协调关系, 发展路径, 江苏省