BAI Xue-jiao,CHANG Qing-rui,LIU Zhao,et al.Evaluation of Farmland Productivity on Downtown of Xianyang City Using GIS—A Case Study of Qindu District[J].Research of Soil and Water Conservation,2013,20(05):108-112,118.
基于GIS的咸阳市区耕地地力评价——以秦都区为例
- Title:
- Evaluation of Farmland Productivity on Downtown of Xianyang City Using GIS—A Case Study of Qindu District
- Keywords:
- GIS; Guanzhong plain; arable land power evaluation
- 分类号:
- S158
- 摘要:
- 采用综合指数法对秦都区耕地地力进行评价。以关中平原的陕西省秦都区为研究区，借助GIS技术，结合层次分析法、模糊数学法等现代统计分析技术，在耕地地力调查的基础上，从立地条件、土壤性质、肥力状况、土壤管理4方面选取12项指标，对研究区耕地地力进行自动化、定量化和可视化评价。结果表明：秦都区耕地地力可分为4级，l—4级地分别占耕地总面积的52.08%，39.72%，7.35%，0.85%，该地区耕地地力水平较高。本研究分析了各级耕地的空间分布特征，对耕地资源的科学管理和可持续利用具有积极意义。该研究结果不仅可以直接应用于研究区农业生产，而且为关中平原开展耕地地力评价的方法进行了有益探索。
- Abstract:
- Synthetic index method was adopted to evaluate the farmland productivity of Qindu District. On the basis of investigating the farmland productivity, 12 targets from 4 aspects of soil condition, soil properties, soil fertility and soil management of Qindu District of Shaanxi Province located in Guanzhong plain were selected. The farmland productivity was evaluated automatically, quantitatively and visually with the integrated use of GIS, analytical Hhierarch program (AHP) and fuzzy mathematical theory (FMT). The results indicated that farmland productivity in Qindu District could be divided into 4 grades. The areas of grades 1—4 accounted for 52.08%, 39.72%, 7.35%, and 0.85% of the total arable land areas, repectively, levels of the farmland productivity are higher. Analysis of the spatial distribution characteristics of each grade is beneficial for scientific management and sustainable use of farmland resources. This result can not only be applied to Qindu District agriculture production, but also contribute a beneficial exploration for studies about the evaluation of the farmland fertility of Guanzhong plain as well.
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备注/Memo
收稿日期:2013-03-04;改回日期:2013-04-01。
基金项目:国家自然科学基金（30872073）
作者简介:白雪娇(1988-),女,内蒙古锡林浩特人,硕士研究生,研究方向为遥感与GIS技术应用。E-mail:baixuejiaoz@126.com
通讯作者:常庆瑞(1959-),男,陕西子洲县人,教授,博导,主要从事资源环境与3S技术应用研究。E-mail:changqr@nwsuaf.edu.cn