| 浙江低丘红壤肥力数值化综合评价研究 |
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| 引用本文： | 吕晓男,陆允甫,王人潮.浙江低丘红壤肥力数值化综合评价研究[J].土壤通报,2000,31(3):107-110. |
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| 作者姓名： | 吕晓男 陆允甫 王人潮 |
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| 作者单位： | 1. 浙江大学土壤遥感与信息技术应用研究所,浙江,杭州,310029
2. 浙江省农业科学院土肥所,浙江,杭州,310021 |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999011809) |
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| 摘 要： | 对 3 8个田间试验结果 ,选用 1 1项肥力指标进行 .根据作物效应曲线分别建立S型和抛物线型隶属度函数 ,并计算出隶属度值 .用多元统计中的因子分析方法 ,求得各肥力指标的权重值 .进一步求得土壤肥力综合指标 (IFI)和土壤养分肥力指标 (NFI) ,结果表明 ,IFI和NFI与玉米产量之间达到显著相关水平 ,说明综合评价结果能较好地反映土壤肥力状况
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| 关 键 词： | 红壤肥力 综合评价 玉米产量 |
| 文章编号： | 0564-3945(2000)03-0107-04 |
| 修稿时间： | 1998年2月28日 |
Integrated evaluation of fertility of red soils in the hilly area of Zhejiang province in terms of momerical index |
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| Abstract: | Integrated fertility evaluation of hilly red soils in Zhejiang province was conducted by using fuzzy mathematics and factor analysis. Two types of membership functions, S- and parabolic-types, with 11 indexes were developed according to the response of plants to the functions, and then the function values were calculated. The weighted values of the fertility indexes were estimated by the method of factor analysis. Finally, the integrated fertility indexes (IFI) and nutrient fertility indexes (NFI) were calculated and further tested with the corn yields of 38 treatments. The results showed that both IFI and NFI were significantly correlated with the corn yields (P=0.05), thus, the integrated evaluation could reflect the status of the red soils. |
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| Keywords: | Fertility of red soils Integrated evaluation Corn |
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