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CARBON POOLS AND FLUX OF GLOBAL FOREST ECOSYSTEMS | |
DIXON, RK; BROWN, S; HOUGHTON, RA; SOLOMON, AM; TREXLER, MC; WISNIEWSKI, J | |
1994 | |
Source Publication | SCIENCE
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ISSN | 0036-8075 |
Volume | 263Issue:5144Pages:185-190 |
Abstract | Forest systems cover more than 4.1 x 10(9) hectares of the Earth's land area. Globally, forest vegetation and soils contain about 1146 petagrams of carbon, with approximately 37 percent of this carbon in low-latitude forests, 14 percent in mid-latitudes, and 49 percent at high latitudes. Over two-thirds of the carbon in forest ecosystems is contained in soils and associated peat deposits. In 1990, deforestation in the low latitudes emitted 1.6 /- 0.4 petagrams of carbon per year, whereas forest area expansion and growth in mid- and high-latitude forest sequestered 0.7 /- 0.2 petagrams of carbon per year, for a net flux to the atmosphere of 0.9 /- 0.4 petagrams of carbon per year. Slowing deforestation, combined with an increase in forestation and other management measures to improve forest ecosystem productivity, could conserve or sequester significant quantities of carbon. Future forest carbon cycling trends attributable to losses and regrowth associated with global climate and land-use change are uncertain. Model projections and some results suggest that forests could be carbon sinks or sources in the future. |
Keyword | Climate Change Tropical Forests Atmospheric Carbon Transient-response Co2 Concentration Increasing Co2 United-states Elevated Co2 Storage Biomass |
Subject Area | Science & Technology - Other Topics |
Indexed By | SCI |
Document Type | 期刊论文 |
Identifier | https://ir.xtbg.ac.cn/handle/353005/9779 |
Collection | 文献共享 |
Recommended Citation GB/T 7714 | DIXON, RK,BROWN, S,HOUGHTON, RA,et al. CARBON POOLS AND FLUX OF GLOBAL FOREST ECOSYSTEMS[J]. SCIENCE,1994,263(5144):185-190. |
APA | DIXON, RK,BROWN, S,HOUGHTON, RA,SOLOMON, AM,TREXLER, MC,&WISNIEWSKI, J.(1994).CARBON POOLS AND FLUX OF GLOBAL FOREST ECOSYSTEMS.SCIENCE,263(5144),185-190. |
MLA | DIXON, RK,et al."CARBON POOLS AND FLUX OF GLOBAL FOREST ECOSYSTEMS".SCIENCE 263.5144(1994):185-190. |
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