Impact of nitrogen fertilizer, greenhouse, and crop species on yield-scaled nitrous oxide emission from vegetable crops: A meta-analysis

文献类型： 外文期刊

第一作者： Yang, Tong

作者： Yang, Tong;Li, Fengbo;Zhou, Xiyue;Xu, ChunChun;Feng, Jinfei;Fang, Fuping;Li, Fengbo

作者机构：

关键词： N2O; Vegetable species; Greenhouse cultivation; N fertilizer; Meta-analysis

期刊名称：ECOLOGICAL INDICATORS （ 影响因子：4.958； 五年影响因子：5.846 ）

ISSN： 1470-160X

年卷期： 2019 年 105 卷

页码：

收录情况： SCI

摘要： Vegetable production is recognized as an important anthropogenic source of nitrous oxide (N2O) emission. An improved understanding of yield-scaled N2O emission from vegetable production can promote innovation for climate smart cropping. In this study, we performed a meta-analysis to quantify yield-scaled N2O emission from six types of vegetable crops, to elucidate the effects of greenhouse cultivation and different types of nitrogen (N) fertilizers on yield-scaled N2O emission from vegetable crops. Significant differences were observed in N2O emission factor (EF) and area- and yield-scaled N2O emissions among the six vegetable types. Stem and seed vegetables showed the lowest and highest area- and yield-scaled N2O emissions, respectively. The average yield of all of the vegetables was significantly higher in greenhouses than in open fields. However, only leafy vegetables were observed to have significantly lower yield-scaled N2O in greenhouses than in open fields. Emissions of yield-scaled N2O in response to inorganic N application rate differed among the different vegetable types. The replacement of inorganic N fertilizer with manure significantly reduced yield-scaled N2O emission from leafy vegetables, but significantly enhanced that from fruit vegetables. Enhanced-efficiency N fertilizer (EENF) significantly increased yield, and significantly reduced area- and yield-scaled N2O emissions from all of the vegetable types; however, it was less effective for root vegetables and open field cultivation.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序