中文摘要：

耕地保护经济补偿接受主体与给付主体确定是耕地保护经济补偿体系和补偿机制构建的关键。文章首先基于公共物品和外部性理论对耕地保护外部性的概念、类型及其所引发的外部性问题进行了界定和分析。其次,在对耕地保护主体类型划分及其行为分析的基础上,从耕地保护外部性供体的属性和特征出发,论述了耕地保护的区内和区际经济补偿接受主体;同时,在对耕地保护外部性受体的概念、作用模式及其外业调查的基础上,界定和分析了耕地保护的区内和区际经济补偿给付主体。研究表明,耕地保护区内经济补偿给付主体应为区内和区外所有获取耕地利用和保护生态社会效益的自然人（外部性受体）,其中区外经济主体所获取的生态社会效益（耕地保护区际外部性）应在区际经济补偿实现的基础上,再通过区内经济补偿纳入到耕地利用经营主体（农户）的收益之中。经济补偿接受主体与给付主体的界定,从理论上解决了耕地保护区内和区际经济补偿受益方与受损方模糊的问题,同时也有利于明确耕地保护的管理主体、社会监督主体的责任和行为约束。

英文摘要：

Defining accepting and affording subjects of cultivated land protection economic compensation is the key of constructing the economic compensation system and mechanisms of cultivated land protection. The internal and interregional accepting subjects of economic compensation of cultivated land protection were defined and analyzed based on the theory of externalities donator. Meanwhile, the internal and interregional affording subjects of economic compensation of cultivated land protection were also defined and analyzed based on the externalities acceptor and its action patterns. Results suggest that （1） The externalities of cultivated land protection consist of internal and interregional externalities in terms of different consumption subjects. The externality problem of cultivated land protection can be conceptually divided into the internal externality problem and interregional externality problem. The internal externality problem is generally influenced by internal and interregional externalities; 2） The subject of cultivated land protection can be divided into the management subject, social supervision subject, and utilization subject by patterns of the behavior and mode of action of the subject in cultivated land protection; 3） The utilization subject of cultivated land may be defined as the accepting subject of internal economic compensation in cultivated land protection in terms of the characteristics and connotation of externalities donator. The key areas for cultivated land protection may be termed an agent donator as it has not the characteristics of externalities donator. It consists of all accepting subjects in internal economic compensation in the key areas, also referred to as interregional union accepting subject of economic compensation of cultivated land protection; 4） The affording subject involves internal and interregional individuals who gain ecological and social benefits from cultivated land protection. It is indicated that the outside area economic subject that obtains ecological