NITROGEN SATURATION INDUCED DURING WINTER BY EXPERIMENTAL NH4NO3 ADDITION TO A FORESTED CATCHMENT

被引：22

作者：

HULTBERG, H ^{[1
]}

DISE, NB ^{[1
]}

WRIGHT, RF ^{[1
]}

ANDERSSON, I ^{[1
]}

NYSTROM, U ^{[1
]}

机构：

[1] NORWEGIAN INST WATER RES,N-0808 OSLO,NORWAY

来源：

ENVIRONMENTAL POLLUTION | 1994年 / 84卷 / 02期

关键词：

NITROGEN; SWEDEN; CATCHMENT; EXPERIMENT; RUNOFF;

D O I：

10.1016/0269-7491(94)90097-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

To investigate the potential risk of 'nitrogen saturation' in Scandinavian boreal forests, the authors are experimentally adding 30-50 kg N ha-1 year-1 as NH4NO3 in precipitation to an entire 0.52-ha 80-year-old spruce forested catchment at Gardsjon, near Gothenburg on the Swedish west coast. NO3 concentrations in runoff increased from 0 to about 7 mueq liter-1 (maximum pulse of 43 mueq liter-1). The increase occurred in winter; during the April-October growing season, NO3 concentrations were very low. The speed of the response suggests that these forests are already close to saturation.

引用

页码：145 / 147

页数：3

共 17 条

[1] NITROGEN SATURATION IN NORTHERN FOREST ECOSYSTEMS
ABER, JD
NADELHOFFER, KJ
STEUDLER, P
MELILLO, JM
[J]. BIOSCIENCE, 1989, 39 (06) : 378 - 386
[2] [Anonymous], 2012, BIOGEOCHEMISTRY FORE
[3] Dise NB, 1992, NITREX PROJECT NITRO
[4] DISE NB, 1992, NITREX GARDSJON STAT
[5] Hauhs M., 1989, ACIDIC PRECIPITATION, V1, P275
[6] HENRIKSEN A, 1988, AMBIO, V17, P259
[7] Hultberg H, 1985, ECOL B STOCKHOLM, V37, P64
[8] Johnson D.W., 1980, ENVIRON INT, V3, P79, DOI DOI 10.1016/0160-4120(80)90040-9
[9] EXPERIMENTAL INDUCEMENT OF NITROGEN SATURATION AT THE WATERSHED SCALE
KAHL, JS
NORTON, SA
FERNANDEZ, IJ
NADELHOFFER, KJ
DRISCOLL, CT
ABER, JD
[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1993, 27 (03) : 565 - 568
[10] KJONAAS J, 1991, NITREX GARDSJON, P45

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