基于土壤和地形约束的耕地识别方法研究——以锦西灌区为例

发布时间：2018-03-20 03:26

  本文选题：耕地识别　切入点：土壤属性　出处：《中国农业大学学报》2017年08期 　论文类型：期刊论文

【摘要】：为探讨土壤特性和地形特征这2个最为核心的耕地资源限制因子影响下的可用于耕地的土地资源,在前人研究的基础上,综合考虑土壤类型及其性质和地形影响,以ArcGIS分析工具为平台,构建耕地资源识别模型,对锦西灌区内可用于耕地的土地进行识别分析。结果表明:在锦西灌区1 200.59km~2的土地中,568.33km~2适宜耕地,较适宜耕地的面积为5.92km~2,改良后适宜的面积为564.15km~2,仅62.19km~2不适宜耕地,不适宜耕地部分包括受土壤因素限制的34.19km~2和受地形影响的32.00km~2,综合考虑两方面的因素所得面积为62.19km~2。与传统的识别方法比较,本研究所构模型对最核心的限制因素进行综合考虑,可更全面、更客观、更精准的识别可用于耕地的土地资源。
[Abstract]:In order to explore the land resources that can be used in cultivated land under the influence of soil characteristics and topographic characteristics, the soil types, their properties and topographic effects are considered comprehensively on the basis of previous studies. Based on the ArcGIS analysis tool, the identification model of cultivated land resources was constructed to identify the arable land that could be used in Jinxi irrigation area. The results showed that in the land of 1 200.59km2 in Jinxi Irrigation District, 568.33km2 was suitable for cultivated land. The suitable area of cultivated land was 5.92 km2, and the suitable area after improvement was 564.15 km2, only 62.19 kmm2 was not suitable for cultivated land. The unsuitable cultivated land consists of 34.19kmm2 restricted by soil factors and 32.00kmm2 affected by topography, and the area obtained by comprehensive consideration of the two factors is 62.19kmm2.Compared with the traditional identification methods, the most core limiting factors are synthetically considered by the model. Can be more comprehensive, more objective, more accurate identification of arable land resources.
【作者单位】： 中国水利水电科学研究院;黑龙江省水利水电勘测设计研究院;青海省水利水电勘测设计研究院;
【基金】：黑龙江省水利科技项目(201305) 国家自然科学项目(51679252)
【分类号】：F323.211;S127
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本文编号：1637315