Title of article :
Impacts of climatic and atmospheric changes on carbon dynamics in the Great Smoky Mountains National Park
Author/Authors :
Chi Zhang، نويسنده , , HANQIN TIAN، نويسنده , , Arthur H. Chappelka، نويسنده , , Wei Ren، نويسنده , , Hua Chen، نويسنده , , SHUFEN PAN، نويسنده , , Mingliang Liu، نويسنده , , Diane M. Styers، نويسنده , , Guangsheng Chen، نويسنده , , Yuhang Wang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
12
From page :
336
To page :
347
Abstract :
We used the Dynamic Land Ecosystem Model (DLEM) to estimate carbon (C) storage and to analyze the impacts of environmental changes on C dynamics from 1971 to 2001 in Great Smoky Mountain National Park (GRSM). Our simulation results indicate that forests in GRSM have a C density as high as 15.9 kg m−2, about twice the regional average. Total carbon storage in GRSM in 2001 was 62.2 Tg (T = 1012), 54% of which was in vegetation, the rest in the soil detritus pool. Higher precipitation and lower temperatures in the higher elevation forests result in larger total C pool sizes than in forests at lower elevations. During the study period, the CO2 fertilization effect dominated ozone and climatic stresses (temperature and precipitation), and the combination of these multiple factors resulted in net accumulation of 0.9 Tg C in this ecosystem.
Keywords :
Multiple stresses , Carbon storage , ozone , Air pollution , Carbon dioxide
Journal title :
ENVIRONMENTAL POLLUTION
Serial Year :
2007
Journal title :
ENVIRONMENTAL POLLUTION
Record number :
731303
Link To Document :
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