应用稳态酸化模型计算酸沉降临界负荷

应用稳定状态土壤化学模型ＰＲＯＦＩＬＥ计算了柳州薄层砂页岩红壤和地表水的酸沉降临界负荷。对模型所需参数，建立了系统完整的收集、测量与计算方法，得到柳州地区针叶林植被区域由湿沉降计算总沉降的经验公式。

Calculation of Critical Loads for Acid Deposition with Steady-state Acidification Model

A steady-state soil chemistry model was used to calculate the critical loads of acid deposition for schist red earth and surface water in Liuzhou Area. A complete and systematic approach to collect,measure and estimate the parameters required by the model was established,and some empiric formulas to calculate total deposition from wet deposition for coniferous ecosystems in this area were acquired. The results indicate that schist red earth in this area have reached a steady-state with the acid deposition,whose critical loads of acidity,potential acidity and sulfur deposition are 1.96,1.88 and 1.1keq·hm^-2 ·a^-1(1.8 g Sm^-2 ·a^-1)respectively,and those of surface water 0.88, 0.80.and 0.61 keq·hm^-2 ·a^-1(1 0g Sm^-2 a^-1)respectively.