| 郑州市郊区土壤综合肥力评价及空间分布研究 |
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| 作者姓名： | 吕巧灵 付巧玲 吴克宁 康 超 韩春建 |
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| 作者单位： | 河南农业大学 河南郑州450002(吕巧灵，韩春建)，河南省地质调查院 河南郑州450007(付巧玲)，中国地质大学 北京100083(吴克宁)，郑州市农业局 河南郑州450005(康超) |
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| 摘 要： | 用修改后的内梅罗公式作为土壤肥力的评价模型,将传统的统计方法与地统计学方法及GIS技术相结合,研究了郑州市土壤肥力的空间变异规律,对郑州市土壤质量进行了定量化的评价。结果表明,郑州市土壤速效磷以差级水平为主,全氮含量中等之外,pH、速效钾、CEC和有机质均以中等级以上水平为主;相对来说,速效磷含量总体较低是郑州市土壤肥力的主要限制因子郑州市土壤综合肥力系数的空间分布总体上具有以下特征:在东北西南方向上,土壤的综合肥力系数很较低,大面积处在差的水平,其中少面积具较高肥力。东南和西北方向的肥力较高,大部分处在良和中的水平。
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| 关 键 词： | 土壤肥力 空间分布 评价 郑州市 |
Studiies on the Comprehensive Evaluation on Fertility and Spatial Distribution of the Soil
in the Suburb of ZhengZhou |
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| Authors: | Lv Qiaoling Fu Qiaoling Wu Kening Kang Chao Han Chunjian |
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| Institution: | 1 Henan Agricultural University; 2 Henan Institute of Geological Survey; 3 China University of Geosciences; 4 Zhengzhou Agriculture Bureau |
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| Abstract: | Spatial distribution and comprehensive evaluation on fertility index in suburb of ZhengZhou, have been studied through combinating the methods of statistics, geostatistics and GIS with the changed Nemoro formula as evaluation model .The results showed a low level of soil available phosphorus, a middle level of soil total nitrogen and a high level of soil pH ,available potassium, CEC and organic matter. The low available phosphorus content may be comparative limiting factors of soil fertility in some area of ZhengZhou suburb. As for the spatial distribution of soil fertility in suburb of ZhengZhou, it also showed that In the southwest and Northeast direction, the comprehensive fertility coefficient of the soil is very relatively low, in the low level by a large scale, among them some higher fertility of the area. Southeast and northwest of direction have the high fertility relatively, in majority good and middle level. |
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| Keywords: | Soil fertility Spatial distribution Evaluate Suburb of ZhenghZhou |
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