多元经营主体融合下耕地集约利用的时空差异及其微观机理

项目名称： 多元经营主体融合下耕地集约利用的时空差异及其微观机理

项目编号： No.41501104

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 地理学

项目作者： 张仕超

作者单位： 重庆师范大学

项目金额： 23万元

中文摘要： 现代农业园区作为构建新型农业经营体系的前沿阵地，发挥着传统农业向现代农业转型的典型示范作用，其持续、健康发展的关键在于支持传统经营主体的同时，多元化培育新型经营主体，而主体的培育能否成功在很大程度上取决于优质耕地资源市场化配置下的高效集约利用。为此，本项目以多元经营主体融合的重庆市（江津）现代农业园区为样区，以样点村-典型主体-样地调查数据为基础，以地块尺度耕地集约利用为切入点，采用参与式农村评估法和“3S”技术建立地块-产业-模式-主体-村庄数据库，借助空间分析和计量统计法对异质性经营主体耕地利用行为差异及转变轨迹进行识别，并通过构建地块尺度耕地利用集约度评价模型、厘定耕地利用集约度变化的系统动力学模型，将多元主体行为置于地块属性、资源禀赋和区域环境等压力作用下来定量剖析耕地利用集约度的时空差异，阐明多元经营主体融合下耕地利用集约度变化的微观驱动机理，旨在探索多元经营主体的融合发展模式。

中文关键词： 多元化经营主体；耕地集约利用；时空差异；微观机理

英文摘要： Modern Agricultural Park，as the frontline of establishing a new type of system for intensive agricultural operations，plays a typical demonstration role in the period of transition from traditional to modern agriculture. The key to sustainable and healthy development of the Park is to vigorously support traditional agricultural business entities, while new and different types of agricultural business entities are fostered, the success of which depends largely on the intensive and efficient use of high-quality cultivated land under market allocation. Thus，this project aims to examine land use intensity differences of typical cropping systems among diversified agricultural business entities in the Modern Agricultural Park of JiangJin District, Chongqing. It also aims at exploring the spatial-temporal difference of cultivated land use intensity and its microscopic driving mechanism to seek an integrated development model of diversified agricultural business entities. Firstly, a database featuring land plots, industry, land use patterns, agricultural business entities and village is built by participatory rural appraisal method and 3S technology, based on data of the sample village, typical agricultural business entities and their cultivated land plots. Secondly, behavioral differences of heterogeneous agricultural business entities in their cultivated land use and the change of trajectories are identified by spatial analysis and quantitative statistics, with plot-level intensive land use as the entry point. And then, an evaluation model of cultivated land use intensity at plot level and a system dynamics model for determining changes in cultivated land use intensity are established. Quantitative analysis of the spatial-temporal difference as well as the microscopic driving mechanism of cultivated land use intensity is made, with the combined pressure from land plot property, household resource endowment and regional environment in consideration. Research results are expected to provide a key basis for innovating the selection and cultivation mechanism of diversified agricultural business entities, and for relevant policy-making.

英文关键词： Diversified agricultural business entities;Cultivated land use intensity;Spatial-temporal difference;Microscopic driving mechanism