| 应用稳态酸化模型计算酸沉降临界负荷 |
| 摘要点击 2503 全文点击 1657 投稿时间：1997-01-31 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 稳态酸化模型 临界负荷 土壤 酸沉降 柳州 薄层砂页岩红壤 地表水 经验公式 |
| 英文关键词 steady-state acidification model critical load red earth acid deposition schist red earth surface water empiric formula |
|
| 中文摘要 |
| 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。结果表明:柳州薄层砂页岩红壤已处于酸化的稳定状态,其酸度、潜在酸度和硫沉降临界负荷分别为1.96、1.88和1.1keq·hm-2·a-1,而地表水的酸度、潜在酸度和硫沉降临界负荷分别为0.88、0.80和0.61keq·hm-2·a-1。 |
| 英文摘要 |
| 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. |
|
|
|
