摘要
“虾稻共作”模式作为一种新兴农业模式,被视为实现农业可持续发展的有力尝试。文章以“虾稻共作”模式的发源地——湖北省潜江市为研究区,通过构建综合评价指标体系,利用Kernel密度估计方法、综合评价模型和障碍度模型,从三维系统角度揭示了2016—2020年潜江市各乡镇在“虾稻共作”模式下粮食安全—经济发展—生态保护三维系统综合效益的时空变化特征,并采用障碍度模型分析了影响该地区综合发展水平的障碍因子。结果表明:①“虾稻共作”模式下,潜江市三维系统发展指数在“十三五”期间呈现出动态演进的特征,各乡镇的发展水平存在一定的绝对差异。②三维系统综合发展效益呈下降趋势,西部、东部和北部较中部高,经济发展效益与三维综合效益的时空变化较为吻合,粮食安全效益与生态保护效益趋势相反。③经济发展指标对综合发展效益的影响最大,其次是生态保护指标和粮食安全指标。
As an emerging agricultural model,the rice-crayfish co-cropping model is considered as a powerful attempt to achieve sustainable agricultural development.This study aims to explore the impact of the rice-crayfish co-cropping model on the comprehensive development benefits in local area from the perspective of the three-dimensional system of food security,economic development,and ecological protection.Taking Qianjiang City of Hubei Province as the study area,it constructs an evaluation index system of the comprehensive development level of food security,economic development and ecological protection,reveals the spatio-temporal changes of the comprehensive benefits of the threedimensional system of food security,economic development and ecological protection in each township of Qianjiang City from 2016 to 2020 under the rice-crayfish co-cropping model,and explores its obstacle factors by the means of Kernel density estimation method,comprehensive evaluation model and obstacle degree model.The results showed that:1)Under the rice-crayfish co-cropping model,the three-dimensional system development index of Qianjiang City showed a dynamic evolution during the"13th Five-Year Plan"period,and there were some absolute differences in each township's development level.2)The comprehensive development benefits of the three-dimensional system show a decreasing trend with higher benefits in the west,east,and north of Qianjiang City than that in the center of Qianjiang City,economic development benefit and comprehensive benefits are more consistent with the spatial and temporal changes,while food security benefits and ecological protection benefits have opposite trends.3)Economic development indicators have the greatest impact on comprehensive development benefits,followed by ecological protection indicators and food security indicators.
作者
夏天
武星华
周晓
于雷
刘艳霞
叶雅文
XIA Tian;WU Xinghua;ZHOU Xiao;YU Lei;LIU Yanxia;YE Yawen(Key Laboratory for Geographical Process Analysis and Simulation of Hubei Province,Central China Normal University,Wuhan 430079,Hubei,China;College of Urban and Environmental Sciences,Central China Normal University,Wuhan 430079,Hubei,China;Institute of Agricultural Remote Sensing and Information,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,Heilongjiang,China;Wuhan Hantie Senior Middle School,Wuhan 430011,Hubei,China)
出处
《经济地理》
CSCD
北大核心
2024年第8期170-180,共11页
Economic Geography
基金
国家自然科学基金项目(42171270)
中央高校基本科研业务费项目(CCNU24JCPT020、30106220497)
国家自然科学基金与广东省联合基金项目(U1901601)。
关键词
虾稻共作
粮食安全
经济发展
生态保护
综合效益
可持续发展
rice-crayfish co-cropping model
food security
economic development
ecological protection
comprehensive benefits
sustainable development
