| 一种基于决策树算法的耕地地力等级评价 |
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| 引用本文： | 曹丽英,孙学生,赵月玲,陈桂芬.一种基于决策树算法的耕地地力等级评价[J].东北林业大学学报,2011,39(2):93-96. |
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| 作者姓名： | 曹丽英 孙学生 赵月玲 陈桂芬 |
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| 作者单位： | 吉林农业大学;沈阳东软系统集成工程有限公司长春办事处; |
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| 基金项目： | 国家“863”项目(2006AA10A309,2006AA10Z245); 国家星火计划(2008GA661003); “十一五”国家科技支撑计划项目(2006BAD02A10-6-6); 国家农业部公益性行业科研专项(200803037); 吉林农业大学2010年青年基金项目(201041) |
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| 摘 要： | 以吉林省德惠市的图斑数据作为实验数据,选择有机质、全氮、速效磷、速效钾4个方面作为耕地地力等级的评价指标,利用数据挖掘中的决策树分类技术建立耕地地力等级评价模型.通过实验分析,得到的分级结果与实际情况基本一致,表明该方法对耕地地力等级评价具有有效性和可行性.
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| 关 键 词： | 决策树 耕地 地力 等级评价 信息增益 |
Evaluation on Soil Fertility Grade for Cultivated Land Based on Decision Trees |
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| Cao Liying,Sun Xuesheng,Zhao Yueling,Chen Guifen.Evaluation on Soil Fertility Grade for Cultivated Land Based on Decision Trees[J].Journal of Northeast Forestry University,2011,39(2):93-96. |
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| Authors: | Cao Liying Sun Xuesheng Zhao Yueling Chen Guifen |
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| Institution: | Cao Liying(College of Information and Technology Science,Jilin Agricultural University,Changchun 130118,P.R.China),Sun Xuesheng(Changchun Office,Shenyang Neusoft Co.,Ltd.),Zhao Yueling,Chen Guifen(Jilin Agricultural University) |
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| Abstract: | An evaluation model of soil fertility grade for cultivated land was established by decision tree algorithm using the patch data from Dehui City,Jilin Province as experimental data and organic matter,total nitrogen,available phosphorus and available potassium as evaluation indices.The grading result was basically consistent with the actual status,indicating that the method is efficient and feasible for evaluation of soil fertility grade for cultivated land. |
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| Keywords: | Decision trees Cultivated land Soil fertility Grade evaluation Information gain |
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