沈阳城市边缘区农地多功能分析

发布时间：2018-04-24 01:29

本文选题：城市边缘区 + 土地多功能　；参考：《土壤通报》2015年03期

【摘要】：随着人们对农地认识的加深,其多功能性已成共识。城市边缘区的农地利用最为强烈、产出率也最高,该区域农地的多功能特性越来越被关注。本文以沈阳市沈北新区为研究区,从农地的生产、生态、景观文化、社会保障四项功能研究入手,构建农地多功能评价指标体系,采用熵权法进行评价。研究结果表明城市边缘区农地多功能强弱与城市距离远近呈正比,诸如距离城市最远的黄家乡、兴隆台镇和石佛寺乡农地多功能分值最高,分别为65.04、53.34和50.81,较近的财落乡和新城子乡较低,为45.30和44.57,距离城市最近的虎石台镇和辉山镇分值最低,为40.38和33.86;人均耕地面积、粮食单产、农产品商品率、化肥投入量、地膜覆盖面积和秸秆还田率等是影响农地多功能的主要因素。通过对城市边缘区农地多功能的研究为构建科学合理的农地多功能评价体系提供参考,为城市化进程中农地的保护、城市边缘区农地多功能发展提供依据。
[Abstract]:With the deepening of people's understanding of farmland, its versatility has become a consensus. The agricultural land use is the strongest and the output rate is the highest in the urban fringe area, and the multifunctional characteristics of the farmland in this area are paid more and more attention. This paper takes Shenyang Shenyang Shenyang New District as the research area, starting with the four functions of agricultural land production, ecology, landscape culture and social security, constructs a multi-function evaluation index system of farmland, and uses entropy weight method to evaluate farmland. The results show that the multifunction of farmland in the urban fringe is proportional to the distance between the city and the city, such as Huanghometown, the farthest away from the city, Xinglongtai and Shifosi, which have the highest multi-function score. 53.34 and 50.81, respectively, the nearest townships of Cailuo and Xinchengzi were lower (45.30 and 44.57), the nearest towns of Hushitai and Huishan were the lowest (40.38 and 33.86), the area of cultivated land per capita, the yield per unit of grain, the commodity rate of agricultural products and the amount of fertilizer input were the lowest. The mulching area and straw returning rate are the main factors affecting the multifunction of farmland. The study on the multifunction of farmland in the urban fringe area provides a reference for the construction of a scientific and reasonable evaluation system for the agricultural land, provides the basis for the protection of agricultural land in the process of urbanization and the multifunctional development of agricultural land in the urban fringe area.
【作者单位】：沈阳农业大学土地与环境学院;
【基金】：沈阳农业大学土地与环境学院青年创新基金项目资助
【分类号】：F301.2

【参考文献】