华北平原集约化农区耕作单元形成机制及其规模经营效率测算研究

To promote new countryside construction, it is essential to develop a modern-agriculture-oriented system, characterized by agricultural industrialization and large farming scale. However, the scale of agricultural farming and the level of intensive farmland use are relatively low. In spite of this, there are only limited quantitative studies on cultivated land plot forming mechanism and the efficiency of agricultural scale. Here the Baodi district of Tianjing and the Quzhou county of Hebei province are selected as the case study area. This study will characterize the cultivated land plot forming and evolved mechanism, and come up with a method to measure and evaluate the efficiency of agricultural scale based on the tillage efficiency of cultivated land plots. The project will provide field and theoretical evidence to clarify the cultivated land plot forming mechanism and the spatial distribution-variation pattern; meanwhile, it will improve the efficiency of agricultural management scale in different designed scenarios so as to provide rational support for optimization design of plot structure reliability.

新农村建设的核心是构建现代农业体系，是以农业产业化、规模化为主要标志。而我国当前农业生产经营和农地利用规模化程度还比较低，不同形态的农田耕地单元组织形式以及定量化测算规模经营效率方面研究不多。 本研究拟选择天津宝坻区和河北曲周县作为研究样区，分析华北平原不同类型集约化农区耕作单元形成和演变特征，研究一种基于耕作单元的机械效率的农田规模经营效率测算方法，并对研究样区的农田规模经营效率进行测算和评价。本项目将有助于揭示华北平原区集约农区农田规模经营现状的形成机制及其空间分异规律；拟定不同情景下农田规模经营效率变化及空间差异性，为相关政策的制定、农田整治、农田规划和利用提供科学支撑。

本研究选择河北曲周县作为研究样区，分析华北平原集约化农区耕作单元形成和演变特征，研究总结出一种基于耕作单元的机械效率的农田规模经营效率测算方法，并对研究样区的农田规模经营效率进行测算和评价。本项目有助于揭示华北平原区集约农区农田规模经营现状的形成机制及其空间分异规律；分析当地不同规模耕地的经济效益差异及影响耕地经济效益的因素，确定农地经营的适度规模，为相关政策的制定、农田整治、农田规划和利用提供科学支撑。