【作者】 王秀芬；

【导师】 郝晋珉；

【作者基本信息】 中国农业大学 ， 土地资源管理， 2003， 硕士

【摘要】 近年来，随着我国人地矛盾的不断激化和农业结构调整的不断深入，保护地农业已成为提高农业效益、促进资源高效利用的重要途径和发展方向。对保护地土地利用特征的研究是实现保护地农业顺利健康发展的前提和基础。 本文在保护地概念及其生产特征分析的基础上，从理论上分析了保护地土地利用的特征：保护地土地利用多维性特征、保护地土地生产力形成过程的非自然性、集约高效性特征和保护地土地增值的途径和实质。引入土地当量比概念，以露地为对比分别从产量、产值、纯收益三个方面建立了表达保护地土地利用率提高和保护地土地增值的指标：保护地产量当量比、保护地产值当量比、保护地收益当量比。 以河北省曲周县的蔬菜保护地为研究对象，采用“成对”调查法，对曲周县保护地、露地种植方式进行了调查，在对调查样点数据筛选、整理的基础上，计算得出蔬菜保护地相对于露地的产量、产值、纯收益当量比，并进行了聚类分析。在此基础上，研究建立了保护地土地增值与保护地纯收益当量比、露地地价之间的关系，通过露地地价评估，计算保护地土地增值及保护地地价。这对正确估价保护地人工增值、保护地发展预测有重要的理论意义和应用价值。更多还原

【Abstract】 In recent years, with the constant sharpening of human-land contradiction, and the constant deepening of agricultural structure adjustment, protected land has been the important way to improve agriculture efficiency and to promote the resource’s high-efficient use. The study on the land use characteristics of protected land make it possible that the protected land could develop smoothly in a healthy way.Based on analyzing the concept and the productive features of protected land, the paper analyzes protected land use multi-dimensional characteristic, productivity non-natural trait, intensive and high-efficient trait and the way and essence of protected land increment. By introducing the concept of Land Equivalent Ratio(LER), this paper compares protected land with open land, sets up three indexes to express protected land’s land use ratio raising and its land increment: Protected land Equivalent Ratio of Yield(PLERY), Protected land Equivalent Ratio of Production Value(PLERPV), Protected land Equivalent Ratio of Net Income(PLERNI).After theory analysis of protected land, selecting the vegetable protected land in Quzhou county Hebei province as sample area, investigating the planting situation of vegetable protected land and open land by "twin" method, this paper calculates PLERY, PLERPV and PLERNI, and analyzes them by SPSS. Then, on the premise that PLERNI is known, this paper sets up the relations of protected land increment, PLERNI and open land value, by assessing open land value to calculate protected land increment and protected land value. It is valuable in theory and practice to assess protected land increment and to forecast protected land development.更多还原