向海湿地贴地气层中CO_2日平均浓度空间分异特征  

Spatial variance character of ambient CO_2 daily average concentration above Xianghai wetland

作　　者：白军红[1] 邓伟[1] 余国营[1] 王国平[1] 徐小峰[1] 

机构地区：[1]中国科学院长春地理研究所湿地过程与环境开放实验室,吉林长春130021

出　　处：《中国环境科学》2002年第1期75-79,共5页China Environmental Science

基　　金：中国科学院湿地创新项目(KZCX-302);湖沼三期项目(ZKHZ-03-06)

摘　　要：研究了向海湿地贴地气层中CO2浓度8月份的日平均值在水平方向及垂直方向上的空间分异特征.结果表明,向海湿地贴地气层CO2日平均浓度在246～266μmol/mol之间,低于三江平原湿地贴地气层乃至全球CO2浓度值,4个高度(0.1,0.6,1.2,2m)水平方向纬度分异显著,变异显著区基本一致;垂直分异差异显著,芦苇和香蒲湿地变异最大,岸边坡地变异最小.We have studied the spatial variance character of ambient CO2 daily average concentration of august above Xianghai natural reserve wetland in horizontal and vertical directions. The results show that the concentration ranges from 246 to 266mol/mol, lower than that above Sanjiang Plain wetland as well as that above the globe; the latitude variance in four levels of height (0.1, 0.6, 1.2 and 2m) in the horizontal direction is distinct, and the areas with distinct variance are consistent basically; the vertical variance is evidently different with the reed and the cattail wetlands the greatest and the land on the shapes near bank the smallest.

关 键 词：贴地气层 CO2日平均浓度 空间分异 向海自然保护区湿地 特征 

分 类 号：X131.1[环境科学与工程—环境科学]