Difference in Soil Methane (CH4) and Nitrous Oxide (N2O) Fluxes from Bioenergy Crops SRC Willow and SRF Scots Pine Compared with Adjacent Arable and Fallow in a Temperate Climate
Difference in Soil Methane (CH4) and Nitrous Oxide (N2O) Fluxes from Bioenergy Crops SRC Willow and SRF Scots Pine Compared with Adjacent Arable and Fallow in a Temperate Climate
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温带气候下生物能源作物 SRC 柳树和 SRF 欧洲赤松与邻近耕地和休耕地土壤甲烷 (CH4) 和一氧化二氮 (N2O) 通量的差异
DOI：
10.1007/s12155-017-9824-9
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发表时间：
2017
影响因子：
3.6
通讯作者：
Drewer J
中科院分区：
文献类型：
--
作者：
Drewer J
在相同的土壤和气候条件下，对相邻几个土地利用系统的甲烷（CH4）和一氧化二氮（N2O）的温室气体（GHG）通量进行了为期2年的测定，以评估从可耕地农业（大麦）和休耕到多年生生物能源作物短轮伐期矮林（SRC）杨柳（Salixspp.）和短轮伐期森林（SRF）苏格兰松（Pinus sylvestris）。SRC、SRF和休闲地的CH4和N2O排放通量之间差异不显著，但耕地的N2O排放量明显高于其他类型。施肥是影响农田N2O排放的主要因素，气温和土壤温度对不同土地利用方式的N2O排放通量无显著影响。土壤水分是显着不同的耕地作物，表现出更大的范围比从SRF和SRC。因此，这些生物能源作物可能是缺水地区的可行选择。
Soil greenhouse gas (GHG) fluxes of methane (CH4) and nitrous oxide (N2O) were measured over a 2-year period from several land use systems on adjacent sites under the same soil and climatic conditions to assess the influence of the transition from arable agricultural (barley) and fallow to perennial bioenergy crops short rotation coppice (SRC) willow (Salixspp.) and short rotation forest (SRF) Scots pine (Pinus sylvestris). There were no significant differences between CH4and N2O fluxes measured from the SRC, SRF and fallow, but the arable agricultural site showed an order of magnitude higher N2O emissions compared with the others. Fertiliser application to the arable crop was the major factor influencing N2O emissions, and both air and soil temperature showed no significant effects on fluxes between the different land use systems. Soil moisture was significantly different from the arable crop, showing a greater range than from SRF and SRC. Hence, these bioenergy crops might be viable options for water-stressed areas.
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