| 渍害土壤肥力综合评价研究——以湖北省潜江市高场农场为例 |
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| 引用本文： | 李方敏,周治安,艾天成,原雄人.渍害土壤肥力综合评价研究——以湖北省潜江市高场农场为例[J].资源科学,2002,24(1). |
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| 作者姓名： | 李方敏 周治安 艾天成 原雄人 |
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| 作者单位： | 1. 湖北农学院涝渍地研究中心,荆州,434103
2. 日本JICA派驻项目专家,荆州,434103 |
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| 基金项目： | 中日技术合作项目 (国科技合 96 2 )，湖北省科技厅科研项目 ( 96 2P0 5 0 3 0 6 )基金资助 |
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| 摘 要： | 利用因子分析、相关分析和模糊数学原理 ,针对渍害土壤的 1 0项肥力指标进行了土壤肥力的综合评价。根据S型或抛物线型作物效应曲线建立各项肥力指标的隶属度函数 ,计算出隶属度值 ,并按各肥力指标的公因子方差、相关系数确定其权重系数 ,从而求得各渍害类型土壤肥力综合指标值 (IFI) ,检验两种方法的IFI与其对应的水稻产量间的相关性 ,表明均达极显著水平 (r=0 75 2 1 ) ,说明综合评价结果能较好地反映出土壤的肥力。
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| 关 键 词： | 渍害土壤 土壤肥力 综合评价 水稻产量 |
INTEGRATED EVALUATION OF WATERLOGGED SOIL FERTILITY: THE CASE OF GAOCHANG FARM IN QIANJIANG CITY, HUBEI PROVINCE |
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| LI Fang-min ,ZHOU Zhi-an ,AI Tian-cheng ,HARA Yuto.INTEGRATED EVALUATION OF WATERLOGGED SOIL FERTILITY: THE CASE OF GAOCHANG FARM IN QIANJIANG CITY, HUBEI PROVINCE[J].Resources Science,2002,24(1). |
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| Authors: | LI Fang-min ZHOU Zhi-an AI Tian-cheng HARA Yuto |
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| Institution: | LI Fang-min 1,ZHOU Zhi-an 1,AI Tian-cheng 1,HARA Yuto 2 |
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| Abstract: | Since there remains a lack of integrated evaluation about the waterlogged soil fertility within scademic debate at present,the main concern of this paper is devoted to such subject.By employing the Gaochang farm in Qianjiang city,Hubei Province,the integrated evaluation of waterlogged soil fertility is studied with 10 nutrient indexes based on factor analysis,correlation analysis and fuzzy mathematic theory.The membership function values are also calculated.The weight coefficients for the fertility indexes are determined by the methods of factor communality and correlation coefficients.Finally,the Integrated Fertility Indexes(IFI)are calculated and the correlativity between IFI of the two methods with corresponding rice yield are statistically tested.The results indicate that the IFI of the two methods are all very significant with grain yield and the integrated evaluation results of soil nutrient indexes can well reflect soil fertility to certain extent. |
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| Keywords: | Waterlogged soil Soil fertility Integrated evaluation Grain yield |
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