| 基于GA-BP模型的景观小水体富营养化评价方法 |
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| 引用本文： | 张维砚,沈蓓雷,童琰,胡雪芹,徐春燕,由文辉,薄芳芳.基于GA-BP模型的景观小水体富营养化评价方法[J].中国环境科学,2011,31(4):674-679. |
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| 作者姓名： | 张维砚 沈蓓雷 童琰 胡雪芹 徐春燕 由文辉 薄芳芳 |
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| 作者单位： | 1. 华东师范大学环境科学系,上海市城市化生态过程与生态恢复重点实验室,上海,200062
2. 上海市绿化管理指导站,上海,200021 |
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| 基金项目： | 上海市科技兴农重点攻关资助项目(沪农科攻字 |
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| 摘 要： | 为了研究适用于景观小水体富营养化评价的方法,以上海市10个公园景观水体为实验对象,在初步了解了景观小水体水质和营养状况的基础上运用主成份分析法对各项水质指标进行评价因子筛选,并对筛选出来的因子建立富营养化评价等级.运用MATLAB软件的GA-BP算法建立评价模型对10个公园4个季度共40组数据进行评价,结果显示与营养度指数法结果总体一致.选用的Chla, TP, TN, CODMn, SD五个评价因子的数据都比较易得,模型可推广性强.
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| 关 键 词： | 景观小水体 富营养化评价 GA-BP模型 |
| 收稿时间： | 2010-08-28; |
Evaluation method of small landscape waters eutrophication based on the GA-BP model |
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| ZHANG Wei-yan,SHEN Bei-lei,TONG Yan,HU Xue-qin,XU Chun-yan,YOU Wen-hui,Bo Fang-fang.Evaluation method of small landscape waters eutrophication based on the GA-BP model[J].China Environmental Science,2011,31(4):674-679. |
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| Authors: | ZHANG Wei-yan SHEN Bei-lei TONG Yan HU Xue-qin XU Chun-yan YOU Wen-hui Bo Fang-fang |
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| Institution: | ZHANG Wei-yan1,SHEN Bei-lei1,TONG Yan1,HU Xue-qin1,XU Chun-yan1,YOU Wen-hui1,Bo Fang-fang2(1.Shanghai Key Laboratory of Urbanization and Ecological Restoration,College of Resources and Environment Science,East China Normal University,Shanghai 200062,China,2.Shanghai City Greening Management Station,Shanghai 200021,China) |
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| Abstract: | In order to study evaluation methods on eutrophication of small landscape waters,we take 10 garden landscape waters of Shanghai into account.We use principle component analysis method to filter out the evaluation factors and determine the evaluation criteria.The GA-BP model of Matlab is used to evaluate totally 40 data sets,which contains the data of 10 gardens under four seasons.Our results demonstrate that it is consistent with that AHC-PCA.Five evaluation factors,including Chla,TP,TN,CODMn and SD,can be ... |
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| Keywords: | small landscape waters eutrophication evaluation GA-BP model |
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