等有机质 土有效磷和无机磷形态的关系
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李若楠,王政培,BATBAYARJavkhlan,张东杰,张树兰,杨学云
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Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil
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RuoNan LI,ZhengPei WANG,Javkhlan BATBAYAR,DongJie ZHANG,ShuLan ZHANG,XueYun YANG
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表5 土壤无机磷组分与磷活化系数(PAC)之间的通径分析
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Table 5 Path analysis for phosphorus activation coefficient(PAC)as a function of soil inorganic phosphorus fractions
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作用因子 Factor | 直接作用 Direct effect | 间接作用地Indirect effect | 与y的相关系数 Correlation coefficient with y | x1→y | x2→y | x3→y | x4→y | x5→y | x6→y | Ca2-P (x1) | 0.768 | | 0.062 | -0.025 | 0.077 | -0.014 | -0.339 | 0.767 | Ca8-P (x2) | 0.071 | 0.674 | | -0.028 | 0.077 | -0.012 | -0.328 | 0.690 | Ca10-P (x3) | -0.055 | 0.346 | 0.036 | | 0.042 | -0.005 | -0.250 | 0.302 | Al-P (x4) | 0.082 | 0.723 | 0.066 | -0.028 | | -0.015 | -0.330 | 0.732 | Fe-P (x5) | -0.018 | 0.609 | 0.049 | -0.014 | 0.066 | | -0.245 | 0.602 | O-P (x6) | -0.388 | 0.672 | 0.060 | -0.035 | 0.070 | -0.011 | | 0.579 |
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