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3 土壤无机磷组分与有效磷含量之间的通径分析
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Table 3 Path analysis for soil available phosphorus content (Olsen P) 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 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) | 0.974 | | 0.160 | 0.003 | 0.175 | 0.119 | -0.065 | 0.974 | Ca8-P (x2) | 0.182 | 0.855 | | 0.004 | 0.174 | 0.103 | -0.063 | 0.897 | Ca10-P (x3) | 0.007 | 0.439 | 0.093 | | 0.094 | 0.039 | -0.048 | 0.444 | Al-P (x4) | 0.186 | 0.917 | 0.170 | 0.004 | | 0.121 | -0.063 | 0.938 | Fe-P (x5) | 0.150 | 0.773 | 0.125 | 0.002 | 0.151 | | -0.047 | 0.828 | O-P (x6) | -0.074 | 0.852 | 0.154 | 0.005 | 0.158 | 0.095 | | 0.834 |
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