NUTRIENT LOSS ACCELERATED BY CLEAR-CUTTING OF A FOREST ECOSYSTEM

被引：200

作者：

BORMANN, FH

LIKENS, GE

FISHER, DW

PIERCE, RS

机构：

[1] School of Forestry, Yale University, New Haven

[2] Department of Biological Sciences, Dartmouth College, Hanover

[3] U.S. Geological Survey, Washington

[4] Northeastern Forest Experimental Station, U.S. Forest Service, Durham, NH

来源：

SCIENCE | 1968年 / 159卷 / 3817期

关键词：

D O I：

10.1126/science.159.3817.882

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：

The forest of a small watershed-ecosystem was cut in order to determine the effects of removal of vegetation on nutrient cycles. Relative to undisturbed ecosystems, the cut ecosystem exhibited accelerated loss of nutrients: nitrogen lost during the first year after cutting was equivalent to the amount annually turned over in an undisturbed system, and losses of cations were 3 to 20 times greater than from comparable undisturbed systems. Possible causes of the pattern of nutrient loss from the cut ecosystem are discussed.

引用

页码：882 / &

共 14 条

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