| 洞庭湖地区农业功能时空演变的影响机制研究 |
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| 引用本文： | 谭雪兰,王振凯,蒋凌霄,安悦,雷济华,任辉.洞庭湖地区农业功能时空演变的影响机制研究[J].地理科学,2020,40(8):1355-1364. |
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| 作者姓名： | 谭雪兰 王振凯 蒋凌霄 安悦 雷济华 任辉 |
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| 作者单位： | 湖南农业大学资源环境学院，湖南 长沙 410128 |
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| 基金项目： | 国家自然科学基金项目（41971219，41571168）、湖南省自然科学基金项目（2020JJ4372）、湖南省哲学社会科学基金项目（18ZDB015）、湖南省教育厅科学研究重点项目（18A102）、湖南省研究生科研创新项目（CX20190521）资助 |
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| 摘 要： | 农业功能的时空演变规律和影响因素研究是引导地区分工、凸显地域价值、促进区域协调发展的科学依据。以洞庭湖地区24个县市区为研究区域，分别从粮食生产功能、就业与社会保障功能、生态保育功能和旅游休闲功能构建评价指标体系，运用熵值法、农业功能变化时空差异诊断模型、地理探测器等方法模型对洞庭湖地区1997—2017年农业功能的动态变化过程、影响因素与作用机制进行研究。结果表明：① 1997—2017年洞庭湖地区农业功能时空变化特征显著：洞庭湖地区粮食生产功能整体呈增强趋势，且中部地区增强明显；就业与社会保障功能整体呈减弱变化趋势，市辖区尤为明显；生态保育功能整体呈减弱趋势且变化幅度大，石门县、安化县等丘陵地区减弱明显，而洞庭湖中部平原区域增强；旅游休闲功能整体呈增强变化态势，石门县、桃江县等地区以及各市辖区旅游休闲功能大幅度提升。② 农业发展基础是农业功能演变的决定性因素，地区发展水平是农业功能演变的重要因素，生产环境质量是洞庭湖地区农业功能演变的基础因素；地区发展水平对农业功能演变的影响程度逐渐上升，生产环境质量因素的影响程度逐渐下降；各影响因子之间存在交互作用，农业功能时空的演变过程及结构受到多个因子共同影响，说明洞庭湖地区农业功能演变的影响因素存在显著的复杂性特征。
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| 关 键 词： | 农业功能 农业功能时空演变 地理探测器 洞庭湖地区 |
| 收稿时间： | 2019-10-14 |
Analysis on Spatio-temporal Evolution of Agricultural Function and Its Influencing Factors in Dongting Lake Area |
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| Tan Xuelan,Wang Zhenkai,Jiang Lingxiao,An Yue,Lei Jihua,Ren Hui.Analysis on Spatio-temporal Evolution of Agricultural Function and Its Influencing Factors in Dongting Lake Area[J].Scientia Geographica Sinica,2020,40(8):1355-1364. |
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| Authors: | Tan Xuelan Wang Zhenkai Jiang Lingxiao An Yue Lei Jihua Ren Hui |
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| Institution: | College of Resources and Environment, Hunan Agricultural University, Changsha 410128, Hunnan, China |
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| Abstract: | The study on spatio-temporal evolution rules and influencing factors on agricultural functions is the scientific basis for guiding regional division of labor, highlighting regional value and promoting regional coordinated development. This paper built the evaluation index system respectively from the function of food production, employment and social security, ecological conservation and tourism and leisure, taking 24 cities districts or counties in Dongting Lake area as the study area, studied the dynamic changing process of agricultural functions, structure and stage characteristics and influence factors on it from 1997 to 2017 in Dongting Lake area by using the entropy weight method, spatiotemporal differential diagnosis model of agricultural functional changes, geo-detector and other method models. The study showed that: 1) the spatial and temporal changes of the agricultural function in Dongting Lake area from 1997 to 2017 were significant: The food production function in the whole Dongting Lake area was increasing, especially in the central area; the function of employment and social security was weakening, especially in municipal districts; the function of ecological conservation was changing greatly and to decline-shimen district, anhua district and other hilly areas decreased significantly while the plain area in the central Dongting Lake area increased; The tourism and leisure function showed a trend of enhancement: Especially in Shimen county, Taojiang county and other city areas. 2) The foundation of agricultural development was the decisive factor on the evolution of agricultural function; the level of regional development was the important factor on the evolution of agricultural function; the quality of production environment was the basic factor of the evolution on agricultural function in Dongting Lake area. The influence of the regional development level increased but of the quality of production environment decreased. There were interactions among influencing factors and the spatial and temporal evolution process and structure of agricultural function were affected by multiple factors, which indicated that the factors influencing the evolution of agricultural function in Dongting Lake area had significant complexity characteristics. |
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| Keywords: | agricultural function evolution of time and space of agricultural function geo-detector Dongting Lake area |
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