| 重庆几种地表类型土/气界面汞交换通量 |
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| 引用本文： | 张成,何磊,王定勇,张金洋.重庆几种地表类型土/气界面汞交换通量[J].环境科学学报,2005,25(8):1085-1090. |
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| 作者姓名： | 张成 何磊 王定勇 张金洋 |
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| 作者单位： | 西南农业大学资源环境学院,重庆,400716;西南农业大学资源环境学院,重庆,400716;重庆市农业资源与环境研究重点实验室,重庆,400716 |
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| 基金项目： | IAEA国际合作项目（No.PRC-10874/R1）,教育部优秀教师计划项目（No.20020716） |
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| 摘 要： | 应用RA915+汞分析仪与动力通量箱(DFC)联用技术,在重庆市不同区域选取几种地表类型(3个林地、2个草地和1个耕地)进行了土气界面间汞交换通量的研究.结果表明,汞交换通量范围为-59～733.8ng·m-2·h-1,平均值为115.8ng·m-2·h-1,汞交换通量大小顺序为污染区(气象站)>裸地(耕地)>大学园区(草地)>清洁区(林地).土壤汞含量、光照强度、相对湿度、土壤温度等环境因素对汞交换通量有较大影响.同时对区域汞释放进行了初步的估算,2003年重庆市从林地、耕地(旱地)和草地释放到大气中的总汞量约为791kg,释放强度为17.1g·km-2·a-1.
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| 关 键 词： | 土/气界面 汞交换通量 释放 地表类型 重庆 |
| 文章编号： | 0253-2468(2005)08-1085-06 |
| 收稿时间： | 01 10 2005 12:00AM |
| 修稿时间： | 05 8 2005 12:00AM |
Soil/air interface mercury exchange fluxes of several ground surface in Chongqing |
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| ZHANG Cheng ,HE Lei ,WANG Dingyong ,,ZHANG Jinyang . College of Resources and Environment,Southwest Agricultural University,Chongqing . Chongqing Key Lab of Agricultural Resources and Environment,Chongqing.Soil/air interface mercury exchange fluxes of several ground surface in Chongqing[J].Acta Scientiae Circumstantiae,2005,25(8):1085-1090. |
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| Authors: | ZHANG Cheng HE Lei WANG Dingyong ZHANG Jinyang College of Resources and Environment Southwest Agricultural University Chongqing Chongqing Key Lab of Agricultural Resources and Environment Chongqing |
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| Institution: | College of Resources and Environment, Southwest Agricultural University, Chongqing 400716,College of Resources and Environment, Southwest Agricultural University, Chongqing 400716,1. College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 2. Chongqing Key Lab of Agricultural Resources and Environment, Chongqing 400716 and College of Resources and Environment, Southwest Agricultural University, Chongqing 400716 |
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| Abstract: | |
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| Keywords: | Soil/Air interface Mercury exchange flux Release Ground surface Chongqing |
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