| 基于CASA模型的吉林西部植被净初级生产力及植被碳汇量估测 |
| |
| 引用本文： | 汤洁,姜毅,李昭阳,张楠,胡猛.基于CASA模型的吉林西部植被净初级生产力及植被碳汇量估测[J].干旱区资源与环境,2013(4):1-7. |
| |
| 作者姓名： | 汤洁 姜毅 李昭阳 张楠 胡猛 |
| |
| 作者单位： | 吉林大学环境与资源学院;黑龙江省齐齐哈尔矿产勘查开发总院 |
| |
| 基金项目： | 国家自然科学基金(40871088,51179073);吉林省科技发展计划项目(20100423)资助 |
| |
| 摘 要： | 将MODIS数据,气象数据与植被数据相结合,利用CASA模型与土壤微生物呼吸模型,计算2001-2010年吉林西部的陆地植被净初级生产力(NPP)和土壤微生物呼吸RH,在此基础上估算了净生态系统生产力(NEP),分析NEP变化规律和原因,估测吉林西部植被碳汇量,结果表明:研究区NPP呈自西向东逐渐增加的趋势;碳源主要分布在通榆、镇赉和大安土地盐碱化比较严重的地区,其植被碳汇量为-160-0gC·m-2·a-1;前郭、扶余、松原、长岭以及白城和镇赉的两个水田灌区的NEP为150-300gC·m-2·a-1,起到碳汇的作用;10年间吉林西部NEP总体上呈波动上升趋势,2010年碳汇能力较2001年增加了47.10gC·m-2·a-1。
|
| 关 键 词： | 碳汇 NPP CASA模型 NEP 吉林西部 |
Estimation of vegetation net primary productivity and carbon sink in western Jilin province based on CASA model |
| |
| TANG Jie,JIANG Yi,LI Zhaoyang,ZHANG Nan,HU Meng.Estimation of vegetation net primary productivity and carbon sink in western Jilin province based on CASA model[J].Journal of Arid Land Resources and Environment,2013(4):1-7. |
| |
| Authors: | TANG Jie JIANG Yi LI Zhaoyang ZHANG Nan HU Meng |
| |
| Institution: | 1,2(1.College of Environment and Resources,Jilin University,Changchun 130026,P.R.China;2.Qiqihar Geo-exploration and Mineral Development Institute,Qiqihar 161006,P.R.China) |
| |
| Abstract: | The net primary productivity(NPP) and heterotrophic respiration(RH) net ecosystem productivity(NEP) in western Jilin province were calculated by using MODIS,meteorological data and vegetation type map,along with combination of CASA model and soil microbial respiration model.The NPP and RH were used to estimate the net ecosystem productivity(NEP) and vegetation carbon sink.By analyzing the variation rule and reason of the NPP and NEP,it was found that NPP in this area showed an increasing tendency from west to east.The regions of carbon source were distributed in the Tongyu,Zhenlai and Daan countries owed to the alkali soil,the vegetation carbon sink of them were between-160-0gC·m-2·a-1.By comparison,the regions of carbon sink were the Qianguo,Fuyu,Songyuan,Changling countries and the paddy field irrigation areas of the Baicheng and Zhenlai countries's NEP was 150-300gC·m-2·a-1.The overall NEP showed an increasing trend over the last 10 years,with the carbon sink of the vegetation increasing 47.10gC·m-2·a-1 from 2001 to 2010. |
| |
| Keywords: | carbon sink NPP CASA model NEP western Jilin province |
| 本文献已被 CNKI 等数据库收录！ |
|
