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用熵权法和改进TOPSIS模型评价高标准基本农田建设后效应

发布时间:2019-01-12 11:10
【摘要】:规范评价实施效果对科学开展高标准基本农田建设具有重要意义。该文以山地丘陵区3个农业产业化进程梯度差异明显的高标准基本农田建设示范县——重庆市江津区(YQ-I)、铜梁区(YQ-II)、梁平县(YQ-III)为样区,以土地整治项目为样点,选取新型经营主体数量、土地流转规模等10项指标,构建了高标准基本农田建设后经济-社会效应评价指标体系,并将熵权法和改进TOPSIS(technique for order preference by similarity to ideal solution)模型应用于评价。结果发现,在影响经济-社会效应的各项指标中,适度规模化经营面积、项目后期管护农民参与度、农民参与项目施工收入等3项指标处于重要级,指标值变差大、影响强;农民人均农业年收入变化、整治工程村民满意度、项目后期管护措施到位度和农民参与项目施工人数等4项处于边缘级,指标值变差小、影响弱;其余指标处于次要级,影响程度居中。3个样区高标准基本农田建设后经济-社会综合效应与农业产业化进程关系密切,呈现为农业产业化进展快速型的YQ-I进展加速型的YQ-II相对缓慢型的YQ-III,效应等级分别为良、中、差;但单方面的经济效应和社会效应具有不平衡性,表现为指标等级分布不平衡、效应等级分布不平衡、研究样区内部不平衡;而随着农业产业化进程加快,经济效应和社会效应之间的差距在逐步缩小,表现为YQ-III、YQ-II和YQ-I中,经济效应贴近度与社会效应贴近度之间的差距依次为22.25、1.21和0.77倍。因此,通过农业产业化,山地丘陵区能有效地利用和发挥高标准基本农田建设的支撑作用,并通过新型经营主体更好地统筹高标准基本农田的建设与后续管护;而基于熵权法和改进TOPSIS模型的评价方法,能够有效用于高标准基本农田建设后经济-社会效应评价。
[Abstract]:It is of great significance to standardize the effect of evaluation for scientific construction of high-standard basic farmland. In this paper, three high standard basic farmland construction demonstration counties with obvious gradients of agricultural industrialization process in mountainous hilly areas are as follows: Jiang Jin District (YQ-I), Tongliang District (YQ-II), and Liangping County (YQ-III) in Chongqing. Taking the land regulation project as the sample point, selecting 10 indexes, such as the number of new management subjects and the scale of land circulation, the evaluation index system of economic and social effects after the construction of high standard basic farmland is constructed. The entropy weight method and the improved TOPSIS (technique for order preference by similarity to ideal solution) model are applied to the evaluation. The results show that, among the indexes that affect the economic and social effects, the moderate scale management area, the participation of farmers in the later stage of the project, and the income of farmers participating in the construction of the project are at the important level, and the index value becomes worse and the influence is strong. The change of average annual agricultural income of farmers, the satisfaction of villagers in the renovation project, the degree of management and protection measures in the late stage of the project and the number of farmers participating in the construction of the project were at the edge level, and the index value became small and the influence was weak. The other indexes are in the secondary level, and the influence degree is in the middle. The economic and social comprehensive effects after the construction of high standard basic farmland in the three sample areas are closely related to the process of agricultural industrialization. The YQ-III, effect grades of YQ-I accelerated YQ-II with rapid progress of agricultural industrialization were good, moderate and poor, respectively. However, the unilateral economic and social effects are unbalanced, such as the imbalance of index grade distribution, the imbalance of effect grade distribution, and the internal imbalance of the sample area. With the acceleration of agricultural industrialization, the gap between economic effect and social effect is gradually narrowing, which is manifested in YQ-III,YQ-II and YQ-I. The difference between economic effect closeness and social effect closeness is 22.251.21 and 0.77 times respectively. Therefore, through agricultural industrialization, mountainous hilly areas can effectively use and play a supporting role in the construction of high standard basic farmland, and better coordinate the construction and follow-up management of high standard basic farmland through new management subjects. The evaluation method based on entropy weight method and improved TOPSIS model can be used effectively to evaluate the economic and social effects after the construction of high standard basic farmland.
【作者单位】: 西南大学资源环境学院;西南大学地理科学学院;
【基金】:国家科技支撑计划项目(2013BAJ11B02)
【分类号】:F323.211

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