| 广州市土地安全预警系统与RBF评估模型的构建 |
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| 引用本文： | 郑荣宝,刘毅华,董玉祥.广州市土地安全预警系统与RBF评估模型的构建[J].地理科学,2007,27(6):774-778. |
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| 作者姓名： | 郑荣宝 刘毅华 董玉祥 |
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| 作者单位： | 1. 中山大学地理科学与规划学院土地研究中心,广东,广州,510275
2. 广州大学地理科学学院,广东,广州,510405 |
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| 基金项目： | 国家自然科学基金项目（40771003）与广州市土地利用总体规划修编专题研究论证项目（GMTC054B009ZFG020JO）资助. |
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| 摘 要： | 土地资源安全预警是区域资源安全研究的重点,通过构建具有实际操作意义的土地资源安全预警系统,可以进行土地资源安全的综合分析,以此来判断城市土地资源安全变化趋势。以广州市为例,应用人工神经网络改进模型(RBF)进行土地资源安全的综合评价,表明广州市土地资源安全已由轻警转为中警状态。实践证明RBF模型对土地资源安全综合评价具有较高的客观性和准确性。
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| 关 键 词： | 土地安全 预警系统 RBF模型 广州 |
| 文章编号： | 1000-0690（2007）06-0774-05 |
| 收稿时间： | 2006-08-09 |
| 修稿时间： | 2006-11-14 |
Establishment and Assessment of Early Warning System of Land Safly Based on Radical Basis Function Model in Guangzhou City |
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| ZHENG Rong-Bao,LIU Yi-Hua,DONG Yu-Xiang.Establishment and Assessment of Early Warning System of Land Safly Based on Radical Basis Function Model in Guangzhou City[J].Scientia Geographica Sinica,2007,27(6):774-778. |
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| Authors: | ZHENG Rong-Bao LIU Yi-Hua DONG Yu-Xiang |
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| Abstract: | The land safe pre-warning is the key point of regional resources precaution research.Through constructing an actually operative pre-warning system of land safly,we can analyze and judge the changing tendency of land safety.The hazard degree in Guangzhou was evaluated by the model of Radical Basis Function(RBF).The results indicate that the degree of land safety has changed from light warning degree to middle warning degree.The practice proves that the RBF is an accurate and objective model in evaluating hazard degree of land safety. |
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| Keywords: | land safe early-warning system RBF model Guangzhou |
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