TROPICAL FORESTS - THE MAIN DEFORESTATION FRONTS

被引:93
作者
MYERS, N
机构
[1] Upper Meadow, Old Road, Headington, Oxford OX3 8SZ, England
关键词
D O I
10.1017/S0376892900037176
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Tropical moist forests are being depleted at an ecobiome-wide rate of c. 2% per year. Certain countries are losing very little forest, while others are losing it at a rate of twice die average, and a few at a rate several times higher. An initial assessment of 14 'deforestation fronts' - being areas that feature the most intensive, widespread, and rapid, deforestation - reveals that they currently feature 43% of all deforestation in 25% of tropical moist forests' expanse. There is urgent need for additional documentation of these deforestation fronts, and to monitor their evolving status - especially of those that look likely to lose forest cover at ever-more rapid rates. Even more important, the analysis allows us to derive criteria for major foci of deforestation, thus enabling us to anticipate new fronts while they are still emergent. In turn, this affords opportunity for preventive measures in the form of 'silver bullet' strategies on the part of conservationists, forestry experts, land-use planners, and policymakers. An early-warning system would go far towards supplying us with a more substantive and methodical understanding of depletive processes overtaking tropical forests.
引用
收藏
页码:9 / 16
页数:8
相关论文
共 50 条
[21]   ACID-RAIN IN THE TROPICAL FORESTS OF THE IVORY-COAST [J].
LACAUX, JP ;
SERVANT, J ;
BAUDET, JGR .
ATMOSPHERIC ENVIRONMENT, 1987, 21 (12) :2643-2647
[22]  
LYNCH OJ, 1990, WHITHER PEOPLE DEMOG
[23]  
MALINGREAU JP, 1988, AMBIO, V17, P49
[24]  
Manshard Walther, 1988, AGR EXPANSION PIONEE
[25]   ECOSYSTEM APPROACH TO A GLOBAL NITROUS-OXIDE BUDGET [J].
MATSON, PA ;
VITOUSEK, PM .
BIOSCIENCE, 1990, 40 (09) :667-671
[27]  
MYERS N, 1990, GLOBAL PLANET CHANGE, V82, P175
[28]  
MYERS N, 1980, CONVERSION TROPICAL
[29]  
MYERS N, IN PRESS 1992 P WORL
[30]  
Myers N., 1992, FUTURE OPERATIONAL M