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| 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 |
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李保琦1, 肖伟华1, 杨明智1, 孙青言1, 宋长虹2, 侯保灯1, 董晓勇3
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| (1.中国水利水电科学研究院, 北京 100038;2.黑龙江省水利水电勘测设计研究院, 哈尔滨 150080;3.青海省水利水电勘测设计研究院, 西宁 810000) |
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| 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1 200.59 km2的土地中，568.33 km2适宜耕地，较适宜耕地的面积为5.92 km2，改良后适宜的面积为564.15 km2，仅62.19 km2不适宜耕地，不适宜耕地部分包括受土壤因素限制的34.19 km2和受地形影响的32.00 km2，综合考虑两方面的因素所得面积为62.19 km2。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。 |
| 关键词: 耕地识别 土壤属性 地形特性 锦西灌区 |
| DOI：10.11841/j.issn.1077-4333.2017.08.10 |
| 投稿时间：2016-08-18 |
| 基金项目:黑龙江省水利科技项目（201305）；国家自然科学项目（51679252） |
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| Cultivated land identification based on soil properties and terrain features identification: A case study of Jinxi irrigation area |
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LI Baoqi1, XIAO Weihua1, YANG Mingzhi1, SUN Qingyan1, SONG Changhong2, HOU Baodeng1, DONG Xiaoyong3
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| (1.China Institute of Water Resources and Hydropower Research, Beijing 100038, China;2.Heilongjiang Province Water Conservancy and Hydropower Investigation, Design and Research Institute of the Ministry of Water Resources, Harbin 150080, China;3.Water Conservancy and Hydropower Survey and Design Institute, Xining 810000, China) |
| Abstract: |
| Cultivated land resource identification is one of the most important technology to guarantee the safety of food strategy.Based on existing research, from the aspects of precipitation,productivity of cultivated land,potentiality of grain production and quality of cultivated land,a new model based on soil property and terrain features is presented to identify cultivated land resource in Jinxi irrigation area.The model is presented on the platform of ArcGIS.The results show that:Of the total 1 200.59 km2,568.334 km2 is the most suitable for cultivation;5.92 km2 is more suitable to cultivate;The area of cultivated land reaches 564.15 km2 after revision and the rest do not fit cultivate.By taking account of two features,the cultivated land is about 62.19 km2.Compared to traditional methods,the new model is more comprehensive,objective and precise. |
| Key words: cultivated land identification soil properties terrain features Jinxi Irrigation Area |
