| PMPD模型预测中国土壤有效磷变化初探 |
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| 引用本文： | 曹宁,张玉斌,闫飞,杨振明.PMPD模型预测中国土壤有效磷变化初探[J].吉林农业大学学报,2009,31(4). |
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| 作者姓名： | 曹宁 张玉斌 闫飞 杨振明 |
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| 作者单位： | 吉林大学植物科学学院,长春,130062 |
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| 基金项目： | "十一五"国家科技支撑计划重大项目，公益性行业(农业)科研专项 |
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| 摘 要： | 采用北京昌平区潮褐土试验站的长期定位试验数据对土壤磷肥力预测(PMPD)模型的主要参数进行调整,用河南郑州潮土试验站的数据对其进行模拟和验证.结果表明:经参数调整后的模型对河南潮土土壤有效磷的预测值与实测值之间呈极显著相关关系,相关系数达到0.848,表明校正后的模型较适用于潮土及潮褐土区田块尺度土壤有效磷的模拟预测.
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| 关 键 词： | 潮土 土壤有效磷 预测模型 |
PMPD Model for Predicting the Change of Soil Available P on the Calcaric Fluvisols at Regional Scales |
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| CAO Ning,ZHANG Yu-bin,YAN Fei,YANG Zhen-ming.PMPD Model for Predicting the Change of Soil Available P on the Calcaric Fluvisols at Regional Scales[J].Journal of Jilin Agricultural University,2009,31(4). |
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| Authors: | CAO Ning ZHANG Yu-bin YAN Fei YANG Zhen-ming |
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| Institution: | CAO Ning,ZHANG Yu-bin,YAN Fei,YANG Zhen-mingCollege of Plant Science,Jilin University,Changchun 130062,China |
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| Abstract: | This study was aimed at providing a model for the long-term changes in soil available P.Data from Eutric Cambisols of Beijing long-term experiments were used to adjust parameters of PMPD model which have been developed to calculate the long-term change in soil P.The model calibrated in this way gave good fits to the data from Henan long-term experiment,predictions of soil available P were in good agreement with measurements in calcaric fluvisols,and the correlation coefficient was 0.848. |
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| Keywords: | calcaric fluvisols soil available P predictive model |
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