摘要
研究施肥条件下，土壤反硝化酶活性硝酸还原酶（ＮＲ）活性、亚硝酸还原酶（ＮｉＲ）活性及羟胺还原酶（ＨｙＲ）活性在玉米生长季节中的变化及其与土壤含水量、硝态氮含量、Ｎ２Ｏ排放之间的关系．结果表明，３种还原酶都有明显的季节变化规律并受土壤水分含量及施肥的影响．通过研究３种反硝化酶活性与土壤含水量及Ｎ２Ｏ排放量之间的关系后指出。
Studies of the activities of soil nitrate reductase, nitrite reductase and hydroxylamine reductase
in maize growing season and their relationship with soil water content, NO - 3 content and N
2O emission under fertilization showed that these three denitrifying enzymes had a significant
seasonal variation and were influenced by soil water content and fertilization. The relationship
between soil denitrifying enzymes, soil water content and N 2O emission were further
investigated, which indicated that the activities of soil denitrifying emzymes could be an index
to distinguish the ways of N 2O productions in upland field.
出处
《应用生态学报》
CAS
CSCD
1999年第3期329-331,共3页
Chinese Journal of Applied Ecology
基金
中国科学院生物科学与技术特别支持项目
关键词
反硝化酶活性
含水量
N2O排放
土壤
Denitrifying enzymes,
NO - 3 N, Soil water content, N 2O.
