Direct emission of nitrous oxide from agricultural soils
Direct emission of nitrous oxide from agricultural soils
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DOI：
10.1007/bf00210224
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发表时间：
1996-01-01
影响因子：
3.1
通讯作者：
Bouwman, AF
中科院分区：
文献类型：
--
作者：
Bouwman, AF
这项分析是基于已发表的测量一氧化二氮（N2 O）排放量从施肥和未施肥领域。选择数据是为了评估调节N2 O产生的因素的重要性，这些因素包括土壤条件、作物类型、氮肥类型以及土壤和作物管理。无水氨和有机氮肥或有机和合成氮肥的组合的N2 O损失报告高于其他类型的氮肥。然而，数据集代表的管理和环境条件范围不足以用于估计每种肥料类型的排放因子。这些数据适合于估计排放量的数量级。测量的时间越长，肥料引起的排放越高。因此，一个简单的方程，从施肥领域的直接N2 O-N排放总量（E）到氮肥施用量（F），是基于一年的测量：E = 1 + 1.25 x F，与E和F公斤氮公顷（-1）年（-1）。这种关系与肥料类型无关。虽然上述回归方程包含相当大的不确定性，但它可能适用于全球估计数。
This analysis is based on published measurements of nitrous oxide (N2O) emission from fertilized and unfertilized fields. Data was selected in order to evaluate the importance of factors that regulate N2O production, including soil conditions, type of crop, nitrogen (N) fertilizer type and soil and crop management. Reported N2O losses from anhydrous ammonia and organic N fertilizers or combinations of organic and synthetic N fertilizers are higher than those for other types of N fertilizer. However, the range of management and environmental conditions represented by the data set is inadequate for use in estimating emission factors for each fertilizer type. The data are appropriate for estimating the order of magnitude of emissions. The longer the period over which measurements are made, the higher the fertilizer-induced emission. Therefore, a simple equation to relate the total annual direct N2O-N emission (E) from fertilized fields to the N fertilizer applied (F), was based on the measurements covering periods of one year: E = 1 + 1.25 x F, with E and F in kg N ha(-1) yr(-1). This relationship is independent of the type of fertilizer. Although the above regression equation includes considerable uncertainty, it may be appropriate for global estimates.