To what extent can zero tillage lead to a reduction in greenhouse gas emissions from temperate soils?
To what extent can zero tillage lead to a reduction in greenhouse gas emissions from temperate soils?
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DOI：
10.1038/srep04586
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发表时间：
2014-04-04
影响因子：
4.6
通讯作者：
Mooney SJ
中科院分区：
文献类型：
--
作者：
Mangalassery S;Sjögersten S;Sparkes DL;Sturrock CJ;Craigon J;Mooney SJ
土壤耕作方法对土壤的物理性质和温室气体平衡有着深远的影响。然而，对不同土壤管理制度下CO2、CH 4和N2 O排放与土壤生物物理化学特性的综合研究却很少。我们记录了一个显着更高的净全球变暖潜力下的传统耕作系统（26-31%，高于免耕系统）。关键的3-D土壤孔隙网络，使用X射线计算机断层扫描成像，修改耕作发挥了重要作用的CO2和CH 4的通量。相反，N2 O通量主要由微生物量碳和土壤含水量决定。我们的工作表明，免耕可以在最大限度地减少土壤温室气体排放方面发挥重要作用，并有助于缓解气候变化。
Soil tillage practices have a profound influence on the physical properties of soil and the greenhouse gas (GHG) balance. However there have been very few integrated studies on the emission of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) and soil biophysical and chemical characteristics under different soil management systems. We recorded a significantly higher net global warming potential under conventional tillage systems (26–31% higher than zero tillage systems). Crucially the 3-D soil pore network, imaged using X-ray Computed Tomography, modified by tillage played a significant role in the flux of CO2 and CH4. In contrast, N2O flux was determined mainly by microbial biomass carbon and soil moisture content. Our work indicates that zero tillage could play a significant role in minimising emissions of GHGs from soils and contribute to efforts to mitigate against climate change.
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影响因子：
6.5
作者：
Del Grosso, SJ;Mosier, AR;Ojima, DS
通讯作者：
Ojima, DS
影响因子：
2.1
作者：
BOUYOUCOS, GJ
通讯作者：
BOUYOUCOS, GJ
影响因子：
6.1
作者：
KEMPERS, AJ
通讯作者：
KEMPERS, AJ
影响因子：
6.5
作者：
Hutsch, BW
通讯作者：
Hutsch, BW
影响因子：
10.1
作者：
Luo, Y;Su, B;Field, CB
通讯作者：
Field, CB