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通过对杉木人工林根圈土壤两种磷酸酶活性、８种磷组分及其相互关系研究，结果表明：（１）根圈酸性、中性磷酸酶活性分别比根圈外高１．４４、０．６６酚ｍｇ／ｇ（３７℃，１２ｈ），Ｒ／Ｓ值分别为１．９１和２．０１；（２）根圈全Ｐ、ＤＡ－Ｐ、Ａｌ－Ｐ、Ｆｅ－Ｐ、Ｈ２ＳＯ４－Ｐ分别比根圈外高２０３．４５，２．２１，３．０５，１０．９３，１０．３３ｍｇ／ｋｇ，Ｒ／Ｓ值分别为１．６１，４．６８，３．６１，１．９７，２．４６，Ｃａ－Ｐ比根圈外低２．３４，Ｒ／Ｓ值为０．７２，Ｉ－Ｐ和Ｏ－Ｐ无显著差异；（３）根圈酸性磷酸酶活性与ＤＡ－Ｐ和Ｈ２ＳＯ４－Ｐ呈显著正相关，ｒ值分别为０．５８４和０．５７９，中性磷酸酶活性与全Ｐ、Ｉ－Ｐ和Ｏ－Ｐ呈显著或极显著正相关，ｒ值分别为０．５９４，０．７７３和０．６８６。
The results showed that: (1) The activities of acid phosphatase and neutral phosphatase in root zone were 1.44 higher than those outside the root circle, respectively, 0.66 phenol mg / g (37 ℃, 12h), the R / S values were 1.91 and 2.01, respectively; (2) The total P, DA-P, Al-P, Fe-P and H2SO4- P were 203.45,2.21,3.05,10.93,10.33mg / kg higher than the root circle, R / S values were 1.61,4.68,3.61,1.97 , 2.46, Ca-P was 2.34 lower than the root circle, R / S value was 0.72, there was no significant difference between I-P and O-P; (3) And H2SO4-P, the r values were 0.584 and 0.579 respectively. Neutrophilic phosphatase activity was significantly or very significantly positively correlated with total P, I-P and O-P, r values were 0 .594,0. 73 and 0.686.