耕地整理前后耕地质量变化的研究

发布时间：2018-02-21 23:35

本文关键词： 耕地整理 ARCGIS 耕地质量评价　出处：《江西农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：耕地整理是补充耕地、提高耕地质量的重要手段,不但可以增加耕地面积,提升耕地质量,同时也有利于实现耕地占补平衡目标,起到积极推动作用。本研究以福建省三明市尤溪县新阳镇2012年综合耕地整理项目作为研究对象,评定因子及权重主要沿用上一轮的研究成果,即先选用特尔菲法结合层次分析法来确定,后利用ARCGIS软件计算耕地整理区域内评价单元建设前后的综合分值变化,并依据所得分值对耕地质量进行等别进行划分,同时与项目区整理前的耕地质量进行对比分析,从而获得项目区域内整理前后的耕地质量变化情况。研究结果表明,新阳镇2012年综合耕地整理项目实施后,新增耕地面积6.4公顷,其中新增耕地的国家自然等别主要为5-9等;国家利用等主要分布在8-11等;国家经济等主要分布在8-11等。经统计分析可知,影响项目区新增耕地的主要因素为有效土层厚度及田间道路通达度,建议未来可通过平整土地、增加有效土层厚度,提高项目区内田间道路通达度等方式提高新增耕地的耕地质量。尤溪县新阳镇2012年综合耕地整理项目进行质量建设耕地面积为121.86公顷,建设后耕地的国家自然等集中分布在5-7等,其中5、6等地面积较建设前均有增加,7、8等地面积有所减少,9等地面积少量增加;建设前后耕地国家利用等均主要在8、9等地之间分布,其中8等地面积扩大,而9-11等地面积相应地减少;建设前后耕地国家经济等均集中分布在8-10等地,其中8等地面积有所增加,9-11等地面积有小量减少,建设后增加了少量12等地的面积。对质量建设区域的评定因素分值进行统计分析可知:项目区域内耕地质量质量提升主要是有效土层厚度、地形坡度、灌溉保证率以及田间道路通达度等因素提高造成的,这表明土地平整、客土措施以及适当的农田水利设施建设有助于耕地质量提高。
[Abstract]:Arable land consolidation is an important means to supplement cultivated land and improve cultivated land quality. It can not only increase the area of cultivated land and improve the quality of cultivated land, but also help to achieve the goal of balance between occupation and compensation of cultivated land. This study takes Xinyang Town, Youxi County, Sanming City, Fujian Province in 2012 as the research object. The evaluation factors and weights mainly follow the previous research results. That is to say, the Delphi method combined with the Analytic hierarchy process (AHP) is first used to determine, then the comprehensive score changes before and after the construction of the evaluation unit in the cultivated land consolidation area are calculated by using ARCGIS software, and the cultivated land quality is classified according to the obtained scores. At the same time, the quality of cultivated land before and after the consolidation of the project area is compared and analyzed to obtain the change of cultivated land quality before and after the consolidation of the project area. The research results show that after the implementation of the comprehensive farmland consolidation project in Xinyang Town in 2012, The area of new cultivated land is 6.4 hectares, of which the national natural category is mainly 5-9, the national utilization is mainly 8-11, and the national economy is mainly 8-11. The main factors affecting the new cultivated land in the project area are the effective soil layer thickness and the field road accessibility. It is suggested that the effective soil layer thickness can be increased by leveling the land in the future. In 2012, the comprehensive cultivated land consolidation project in Xinyang, Youxi County, carried out a comprehensive cultivated land area of 121.86 hectares. The national natural distribution of cultivated land after construction is 5-7, in which the area of 5, 6 and so on has increased compared with that before construction, and the area of such land as 7, 7, 8, and so on has decreased, and the area of land used by the country before and after construction has been mainly distributed between 8 / 9 and 9, and so on. Among them, the area of 8 and so on has expanded, while the area of land such as 9-11 has been reduced accordingly. Before and after the construction of the land, the national economy of the cultivated land is concentrated in 8-10, and the area of the eighth class of land has increased and the area of the other areas, such as 9-11, has decreased in a small amount. After the construction, the area of a small amount of land, such as 12, was increased. The statistical analysis of the evaluation factor score of the quality construction area shows that the quality improvement of cultivated land in the project area is mainly due to the effective soil layer thickness, topographic slope, and so on. The improvement of irrigation guarantee rate and field road accessibility shows that land leveling, measures and construction of irrigation and water conservancy facilities are helpful to improve the quality of cultivated land.
【学位授予单位】：江西农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：F323.211

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