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Long-term forest degradation surpasses deforestation in the Brazilian Amazon
被引:238
作者:
Trondoli Matricardi, Eraldo Aparecido
[1
]
Skole, David Lewis
[2
]
Costa, Olivia Bueno
[1
]
Pedlowski, Marcos Antonio
[3
]
Samek, Jay Howard
[2
]
Miguel, Eder Pereira
[1
]
机构:
[1] Univ Brasilia, Dept Forestry, Campus Darcy Ribeiro, BR-70900910 Brasilia, DF, Brazil
[2] Michigan State Univ, Global Observ Ecosyst Serv, Dept Forestry, E Lansing, MI 48823 USA
[3] Univ Estadual Norte Fluminense, Lab Estudos Espaco Antrop LEEA, BR-28013 Campos Dos Goytacazes, RJ, Brazil
来源:
关键词:
LAND-USE;
CLASSIFICATION;
FRAGMENTATION;
CARBON;
IMPACT;
FATE;
D O I:
10.1126/science.abb3021
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Although deforestation rates in the Brazilian Amazon are well known, the extent of the area affected by forest degradation is a notable data gap, with implications for conservation biology, carbon cycle science, and international policy. We generated a long-term spatially quantified assessment of forest degradation for the entire Brazilian Amazon from 1992 to 2014. We measured and mapped the full range of activities that degrade forests and evaluated the relationship with deforestation. From 1992 to 2014, the total area of degraded forest was 337,427 square kilometers (km(2)), compared with 308,311 km(2) that were deforested. Forest degradation is a separate and increasing form of forest disturbance, and the area affected is now greater than that due to deforestation.
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页码:1378 / +
页数:43
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