NITRATE DYNAMICS IN FALL CREEK, NEW-YORK

被引：32

作者：

JOHNSON, AH ^{[1
]}

BOULDIN, DR ^{[1
]}

GOYETTE, EA ^{[1
]}

HEDGES, AM ^{[1
]}

机构：

[1] CORNELL UNIV, ITHACA, NY 14850 USA

来源：

JOURNAL OF ENVIRONMENTAL QUALITY | 1976年 / 5卷 / 04期

关键词：

D O I：

10.2134/jeq1976.00472425000500040011x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nitrate loss from a 330-km2 rural watershed in central New York [USA] was monitored over a 31 mo. period. Seasonal NO3-N patterns were well defined with highest levels in the winter and lowest levels in the summer resulting from accumulation of NO3-N in the soil profile during the growing season and leaching during the winter months. Stream water at the outlet of the watershed studied is used as a source of drinking water for some 20,000 people. Nitrate-N concentrations at the drinking water intake currently do not exceed 3 mg/l. Human activities affected NO3-N levels, with dairying and sewage being the major contributors. If agriculture is expanded to its maximum acreage, keeping the present ratio of corn/hay/pasture/people, NO3-N levels at the drinking water intake will not exceed present standards for drinking water.

引用

页码：386 / 391

页数：6

共 11 条

[1] NUTRIENT LOSS ACCELERATED BY CLEAR-CUTTING OF A FOREST ECOSYSTEM [J].