南雄市2014年度耕地质量等别更新评价分析

发布时间：2018-06-08 03:20

本文选题：南雄市 + 耕地质量　；参考：《仲恺农业工程学院》2017年硕士论文

【摘要】：耕地是人类生存的物质基础和根本,是农业生产中最基本的生产资料。近年来,耕地保护过程中“重数量、轻质量”的倾向仍然相当普遍,因此以农用地分等定级成果为基础,结合现有土地资源调查情况,对农用地质量等别年度更新进行评价具有重要的现实意义,同时对我国耕地保护、粮食安全、社会稳定和经济可持续发展具有积极的影响。本研究通过查阅相关文献,收集相关资料,进行实地调查和测量,分析南雄市2014年度内耕地增减变化及耕地质量等别变化以及2014年度耕地质量和利用现状,参考《农用地质量分等规程》及省下发的有关参数、系数和因素体系,对增减耕地的等别进行评价,并对2014年耕地质量等别变化进行更新评价,主要研究结果如下:1、2014年南雄市增加耕地82.49公顷,新增耕地的地类全部为旱地,来源主要为土地整治补充开发耕地和增减挂钩补充耕地,新增耕地的自然质量等别中高等居多,利用等别为中等,经济等别为中等,说明新增耕地自然质量总体状况较好,而利用情况和产量水平一般;2、2014年南雄市减少耕地总计32.63公顷,类型主要为水田和旱地,原因在于建设用地占用,减少的耕地自然质量等别较高,利用等别为中等,经济等别较高;3、南雄市2014年农用地质量等别年度更新评价结果显示,2014年耕地质量自然等别中高等别比例较高,说明南雄市耕地自然质量总体状况较好,耕地利用等别分布不均,各地耕地质量利用水平存在一定差异,耕地整体利用水平较高,耕地经济等别的分布较集中,各地耕地投入—产出的水平差异较小。4、分布于中部盆地的耕地自然质量等、利用等、经济等相对于丘陵山区的耕地其自然质量等、利用等、经济等别较高。5、2014年度南雄市耕地利用中存在耕地总量减少、耕地资源隐形流失和用地养地不平衡的问题,建议采取提高耕地占用成本、增强耕地保护意识和制定更加惠农的政策等措施。
[Abstract]:Cultivated land is the material foundation and foundation of human existence and the most basic means of production in agricultural production. In recent years, the tendency of "emphasizing quantity but not quality" in the process of cultivated land protection is still quite common. Therefore, based on the results of grading agricultural land and combining with the existing land resources survey, It is of great practical significance to evaluate the annual renewal of agricultural land quality, and it has a positive impact on the protection of cultivated land, food security, social stability and sustainable economic development in China. Through consulting relevant literature, collecting relevant data, carrying out field investigation and measurement, this study analyzes the change of cultivated land in 2014, the change of cultivated land quality, and the present situation of cultivated land quality and utilization in 2014. Referring to the grading rules for Agricultural Land quality and the relevant parameters, coefficients and factor systems issued by the provinces, the author evaluates the differences between the increase and decrease of cultivated land and the changes of cultivated land quality in 2014, and carries out an updated evaluation on the changes of cultivated land quality in 2014. The main results are as follows: in 2014, in Nanxiong City, 82.49 hectares of cultivated land were increased, and all of the new cultivated land were dryland. The main sources were land renovation, supplementary development of cultivated land and linking of increase or decrease to supplementary cultivated land. The natural quality of the newly increased cultivated land was the highest in the world. The natural quality of new cultivated land is good in general, and the utilization and yield level are generally 2%. In 2014, the total amount of cultivated land reduced in Nanxiong City was 32.63 hectares. The main types of cultivated land were paddy fields and drylands. The reason is that the occupation of construction land, the natural quality of the reduced cultivated land, etc., is higher, and the utilization is medium. The results of the annual update evaluation of the agricultural land quality in Nanxiong in 2014 show that the natural and higher proportion of cultivated land quality in 2014 is higher, which indicates that the natural quality of cultivated land in Nanxiong City is in a better overall situation, and the distribution of cultivated land utilization is uneven. There are some differences in the quality and utilization of cultivated land, the overall utilization of cultivated land is relatively high, the other distribution of cultivated land economy is more concentrated, the level of input-output of cultivated land is small, and the natural quality of cultivated land is distributed in the central basin, and so on. Relative to the natural quality of cultivated land in hilly and mountainous areas, the use of economic, and other aspects of cultivated land use in Nanxiong City in 2014 had the problems of reducing the total amount of cultivated land, the hidden loss of cultivated land resources and the imbalance between land use and land conservation. It is suggested that measures should be taken to increase the cost of cultivated land occupation, to strengthen the awareness of cultivated land protection and to formulate more favorable policies for agriculture.
【学位授予单位】：仲恺农业工程学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F323.211

【参考文献】