粮食主产区耕地保护的外部性及其经济补偿已成为当前亟待研究的重要课题。而粮食主产区耕地保护外部性边界涉及到该研究领域的尺度问题，影响着区内区际外部性分割和补偿主体的界定，同时也是科学测度补偿标准、构建补偿机制的基础。本项目拟基于外部性多层次边界视角，运用生态系统服务和非市场价值理论，开展不同外部性边界下的粮食主产区耕地保护经济补偿及效应研究，并选择河南省区域内黄淮海平原、豫北豫西山前平原和南阳盆地典型粮食主产县进行实证分析。该研究拟达到以下目标：（1）揭示外部性多层次边界下的耕地非农化机理及其与经济补偿之间的作用反馈机制；（2）构建总体外部性量化模型和区内区际分割模型，测度出具有弹性区间的动态耕地保护经济补偿标准；（3）构建区内和区际一体化的耕地保护经济补偿体系和运行机制，并分析其实施效应，同时将整治后耕地经济补偿纳入之中。研究将为粮食主产区耕地保护经济补偿提供理论和方法支撑。

Cultivated land protection effects and its economic compensation is an important matter of science in land resource management discipline.The boundary of main grain producing area externality concerns scale problem of this research field. And it is also the basis of calculation of cultivated land protection externalities and its economic compensation standard, construction of economic compensation mechanism.This study will focus on the externalities and its economic compensation mechanism and its effects of major grain producing area cultivated land protection based on theory of ecosystem services and non-market value theory from externality multiple level boundary perspective. Taking the major grain producing counties of Huanghe-Huaihe-Haihe plain, Yubei-Yuxi piedmont alluvial plain and Nanyang Basin of Henan province as an example, the applied researches will be studied.The main aims are as following.(1)The mechanism of cultivated land conversion under different externality boundary, as well as the action and feedback mechanism between cultivated land conversion and economic compensation, will be elucidated.(2)The measurement model will be constructed and the elasticity space of economic compensation standard will be calculated.(3) The internal and interregional economic compensation mechanism will be constructed. The internal economic compensation mechanism is composed of agricultural insurance, social security, material object, technology and currency, and the interregional economic compensation negotiating mechanism is composed of higher-level government adjustment and special financial transfer payment. This study may serve as theoretical basis and method support for cultivated land protection effects and its economic compensation.