Nitrous oxide emission potential of 21 acidic tea field soils in japan

被引：51

作者：

Tokuda, S ^{[1
]}

Hayatsu, M

机构：

[1] Natl Inst Vegetable & Tea Sci, Shizuoka 4288501, Japan

[2] Shizuoka Univ, Fac Agr, Dept Environm Sci Human Life, Shizuoka 4228529, Japan

来源：

SOIL SCIENCE AND PLANT NUTRITION | 2001年 / 47卷 / 03期

关键词：

acidic soil; nitrogen fertilizer; nitrous oxide (N2O); pH; tea;

D O I：

10.1080/00380768.2001.10408427

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The nitrous oxide (N2O) emission potential of 21 acidic tea field soils in Japan was evaluated using a laboratory incubation method. The range of pH values of the soils was 6.26-2.96, and 17 of the 21 soils were strongly acidified below pH 5.0 due to long-term heavy application of nitrogen fertilizer. The N2O emission potential ranged from 0.001 to 1.463 mug N2O-N g(-1) d(-1). There was a negative exponential relationship between the soil pH value and N2O emission potential. The application of more than 1,000 kg N ha(-1) y(-1) of nitrogen fertilizer significantly enhanced the N2O emission potential of acidic tea field soils.

引用

页码：637 / 642

页数：6

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