| 酸沉降——森林冠层反应模型 |
| |
| 引用本文： | 高映新,刘连贵,舒俭民,曹洪法.酸沉降——森林冠层反应模型[J].环境科学学报,1992,12(3):316-324. |
| |
| 作者姓名： | 高映新 刘连贵 舒俭民 曹洪法 |
| |
| 作者单位： | 中国环境科学研究院生态研究所 北京100012
(高映新，刘连贵，舒俭民)，中国环境科学研究院生态研究所 北京100012(曹洪法) |
| |
| 摘 要： | 建立了酸沉降—冠层反应模型,并计算冠层穿落水的化学特征。用广西马尾松和火力楠人工林一周年观测数据对模型进行初步检验.结果表明,模型与观测结果基本吻合,实测和模拟的穿落水量及各项离子的相对误差都在±7％之内,马尾松冠层过程强烈地受大气干沉降控制,穿落水加权pH值比同期降雨低0.61单位,火力楠受干沉降影响小,穿落水pH比降雨高0.28.参与冠层反应的各离子的主要来源不尽相同.
|
| 关 键 词： | 酸沉降 森林冠层 酸雨 |
| 收稿时间： | 1990/10/30 0:00:00 |
A MODEL OF FOREST CANOPY REACTION TO ACID PRECIPITATION |
| |
| Gao Yingxin,Liu Liangui,Shu Jianming and Cao Hongfa.A MODEL OF FOREST CANOPY REACTION TO ACID PRECIPITATION[J].Acta Scientiae Circumstantiae,1992,12(3):316-324. |
| |
| Authors: | Gao Yingxin Liu Liangui Shu Jianming and Cao Hongfa |
| |
| Institution: | Institute of Ecology, Chinese Research Academy of Environmental Sciences,Beijing 100012,Institute of Ecology, Chinese Research Academy of Environmental Sciences,Beijing 100012,Institute of Ecology, Chinese Research Academy of Environmental Sciences,Beijing 100012 and Institute of Ecology, Chinese Research Academy of Environmental Sciences,Beijing 100012 |
| |
| Abstract: | A model of forest canopy reaction to acid precipitation was suggested to simulate the throughfall chemistry. Canopy reactions of Pinus massoniana and Michelia macclurei Var. sublanea in Liuzhou,Guangxi were measured during one
year perjod. The result validated the accuracy of the model. The relative errors were less than 7% in simulated throughfall and ion fluxes compared to the field data. Ion concentrations in simulated throughfall matched measured ones. Dry deposition was the major source of acid substances in the studied area. Coniferous canopy process seemed to be dominated by dry deposition, while deciduous process was affected less by that. The weighted pH of coniferous throughfall was 0.61 less, and the pH of deciduous throughfall was 0.28 unit greater than that of synchronous rain. The main source of ions participated the canopy process appears to vary. |
| |
| Keywords: | acid precipitation forest canopy throughfall chemistry |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
