天津市植被单萜烯排放量估算及时空分布特征  

Inventory of Biogenic Total Monoterpenes and Temporal and Spatial Characteristics in Tianjin

作　　者：高翔[1] 刘茂辉[1] 徐媛[1] 展先辉 张震[1] 

机构地区：[1]天津市环境监测中心,天津300191

出　　处：《西北林学院学报》2016年第4期87-92,共6页Journal of Northwest Forestry University

基　　金：国家科技支撑计划课题(2014BAC23B02);天津市科技计划项目(13ZCZDSF14600);环保部公益行业科研专项(201409014)

摘　　要：基于改进的GLoBEIS模型,使用实际观测的小时气象数据和遥感图像解译的土地利用类型数据,对天津市2013年植被排放的单萜烯(BTMT)总量进行了估算和时空分布特征分析。结果表明:2013年天津市BTMT排放总量达到2 877.80t(以C计,下同),排放强度为0.25t·km^(-2)·a^(-1)。BTMT的排放具有明显的日变化、月变化和季节变化特征:中午高,夜间低;8月份最高,1月份最低;夏季排放量最大,冬季排放量最小。其空间特征与土地利用类型密切相关,BTMT的排放主要分布在林地面积较大的区域,并且在市内6区和滨海新区排放量较小。最后,对BTMT排放量的估算进行了不确定性分析。Based on the improved GLoBEIS model,the emission of biogenic total monoterpenes（BTMT）as well as temporal and spatial characters in Tianjin in 2013 was investigated by using observed meteorological data and the remote-sensing image interpretation of land use.The annual total emission amount of BTMT in Tianjin was about 2 877.80t（C）and the emission intensity was 0.25t·km^（-2）·a^（-1）.The maximum emissions were found in midday,in August and in summer,respectively,while the minimum emissions occurred in night time,in January and in winter,respectively,presenting regular daily,monthly and seasonal variation pattern.The spatial distribution of BTMT emission mainly depended on land use,mostly located in dense forest area.Low emission was usually found in urban district and Binhai region.The uncertainty on the estimation of the BTMT emission of was also analyzed.

关 键 词：天津 植被 单萜烯 GLoBEIS 空间特征 

分 类 号：X511[环境科学与工程—环境工程]