Biochar partially offset the increased ammonia volatilization from salt-affected soil
Biochar partially offset the increased ammonia volatilization from salt-affected soil
复制标题
生物炭部分抵消了受盐影响的土壤中氨挥发的增加
DOI：
10.1080/03650340.2020.1786537
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发表时间：
2020-07
影响因子：
2.4
通讯作者：
Yajun Luan
中科院分区：
文献类型：
--
作者：
Shimeng Liu;Yawei Li;Junzeng Xu;Wenjin Ma;Boyi Liu;Haiyu Wang;Xiaoyin Liu;Yajun Luan
氨挥发是施氮后氮素从土壤中流失的主要形式之一，尤其是在盐渍化土壤中，氨挥发导致氮素利用率低下。为了评价生物炭对施用两种不同氮肥（尿素和硫酸铵（AS））的盐渍土NH3挥发的影响，以两种盐渍土（电导率EC 1：5分别为1.0和5.0 ds m−1，即S1和S2）和非盐渍土（S 0，EC 1：5 < 0.3 ds m−1）为对照进行了试验。将生物炭以20 t ha−1的剂量施用到S1和S2。结果表明，土壤盐分的增加显著促进了NH3挥发，比对照增加了38.7%~ 76.8%，在所有盐分水平下，AS处理的NH3挥发量均高于尿素。生物炭的添加使NH3挥发量降低了10.8%~ 20.9%。第1周NH3累积挥发量占整个试验期的比例显著高于S1，生物炭的添加可降低气态氮的挥发损失。本研究揭示了盐渍化土壤加剧氮素挥发损失的巨大能力，生物炭可作为一种潜在的土壤改良剂来降低盐渍化土壤中的氮素挥发损失。
ABSTRACT Ammonia (NH3) volatilization is one of the major forms of nitrogen (N) losses from soil after N fertilization, especially in salt-affected soil, which leads to low N use efficiency. To evaluate the effect of biochar on NH3 volatilization from salt-affected soil with two different N fertilizers (urea and ammonium sulfate (AS)), experiments were conducted with two salt-affected soils (electrical conductivity EC1:5 of 1.0 and 5.0 ds m−1, namely S1 and S2) and non-saline soil as control (S0, EC1:5 < 0.3 ds m−1). Biochar was applied to S1 and S2 at the dosage of 20 t ha−1. Results showed that increasing soil salinity significantly promoted NH3 volatilization by 38.7%–76.8% than control and AS treatments recorded higher NH3 volatilization than urea in all salinity levels. The addition of biochar decreased NH3 volatilization by 10.8%–20.9%. The proportion of cumulative NH3 volatilization in the first week to the whole experimental period was significantly higher in S1, and biochar addition can reduce the percentages of gaseous N losses. This study unravels the immense capability of salt-affected soil to aggravate N losses in the form of NH3 volatilization, and biochar can be used as a potential soil amendment in decreasing NH3 volatilization in salt-affected soil.
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影响因子：
5
作者：
Qing Huo;Xuhui Cai;Ling Kang;Hongsheng Zhang;Yu Song;Tong Zhu
通讯作者：
Qing Huo;Xuhui Cai;Ling Kang;Hongsheng Zhang;Yu Song;Tong Zhu
影响因子：
5
作者：
Battye, W;Aneja, VP;Roelle, PA
通讯作者：
Roelle, PA
DOI：
10.1007/s11267-006-9103-9
发表时间：
2007-02
期刊：
Water, Air, & Soil Pollution: Focus
影响因子：
--
作者：
B. Emmett
通讯作者：
B. Emmett
影响因子：
4.9
作者：
S. Datta
通讯作者：
S. Datta
影响因子：
4.9
作者：
C. Vega-Jarquín;M. Garcia‐Mendoza;N. Jablonowski;M. Luna-Guido;L. Dendooven
通讯作者：
C. Vega-Jarquín;M. Garcia‐Mendoza;N. Jablonowski;M. Luna-Guido;L. Dendooven