准确地采集土壤气体样品是研究土壤气体特征的前提。
Accurately collecting soil gas samples is essential to the study of the characteristics of soil gas.
有机农业还减少了土壤污染和水污染，降低了温室气体排放量。
Organic agriculture also creates less soil and water pollution and lower greenhouse gas emissions.
即使是元素状态为气体的氮，也通常作为硝酸根离子从土壤中被吸收。
Even nitrogen, which is a gas in its elemental state, is normally absorbed from the soil as nitrate ions.
他们所做的研究，其中一些侧重于基础大气过程，比如土壤和水之间的气体交换率。
Some of the research focused on underpinnings of atmospheric processes, such as rates of gas exchange between soil and water.
为种植小树而挖坑也会从土壤中释放温室气体。
And digging holes to plant saplings releases greenhouse gases from the soil.
通过吸收和储存温室气体，特别是在土壤、植物和树木中，农业起到了碳“汇集地”的重要作用。
Agriculture plays an important role as a carbon "sink" through sequestering and storing greenhouse gases, especially as carbon in soils, plants and trees.
集约化农业生产使用化肥，施到土壤中的化肥会释放强大的温室气体一氧化二氮。
Intensive farms also use fertilizers which release the powerful greenhouse gas nitrous oxide when applied to the soil.
森林聚水蓄水，稳定土壤，涵养多种生物，并对调节气候以及造成气候变化的温室气体做出重要贡献。
Forests catch and store water, stabilize soils, harbour biodiversity and make an important contribution to regulating climate and the greenhouse gases that are causing climate change.
耕作还会将土壤中的二氧化碳释放到大气中，而免耕能够保持住土壤中的碳，并且避免机械设备释放吸热气体。
Tilling also releases carbon dioxide from the soil into the atmosphere. No-till keeps carbon in the soil and avoids the release of heat-trapping gases from motorized equipment.
为了提取它需要挖起大部分的月球表层几英尺的土壤并且烘烤土壤释放出太阳风注入的气体。
To extract it would require digging up much of the moon's upper few feet of soil and baking the soil to release the solar wind-implanted gases.
但Steer表示，广泛采用“气候友好型”农作方式，如浅耕方式，可有助于土壤每年吸收13%的温室气体排放。
But Steer says widespread use of "climate-smart" farming techniques, such as low tillage, could help soil to absorb 13% of greenhouse gas emissions each year.
生物炭能肥沃土壤、减少温室气体。
Biochar could enrich soils and cut greenhouse gases as well.
她一直在测算残渣的收益、土壤的有机碳含量和温室气体排放量（二氧化碳、甲烷和一氧化二氮）。
She is measuring residue yields, soil organic carbon, and greenhouse gas emissions (carbon dioxide, methane, and nitrous oxide).
简单来说，这涉及定期测量从土壤排放的并留存在密封箱中的气体浓度。
Put simply, this involves regularly measuring the concentration of the gases emitted from the soil and trapped in a sealed box.
周日发表的一项研究显示北极永冻土壤解冻可以释放出氧化亚氮，俗称笑气。 这种温室气体对气候变化的贡献一般为世人所忽视。
OSLO (Reuters) - Thawing permafrost can release nitrous oxide, also known as laughing gas, a contributor to climate change that has been largely overlooked in the Arctic, a study showed on Sunday.
土壤的主要特性有质地、酸度、养分含量、气体含量和含水量。
The major characteristics of soils are texture, acidity, nutrient content, gaseous content, and moisture content.
据估计，在良好的土地管理实践中，每年土壤中碳潜在的封存量是55亿吨，相当于来自所有部门的温室气体排放量的13%。
The potential for carbon sequestration in the soil is estimated at 5.5 gigatons annually with good land management practices, equivalent to 13% of current emissions from all sectors.
在微量气体代谢中，土壤微生物具有直接的作用。
Soil microorganisms exercise direct effects on trace gases metabolism.
植物是所有生命的基础，只有植物能把土壤中的矿物质跟大气中的气体结合，制造出食物。
Plants are the basis of all life, for only they can combine minerals in the ground with gases from the air and produce something worth eating.
结果表明：土壤释放的含硫气体是微生物分解含硫氨基酸、硫酸酯、还原硫酸盐的产物。
The results show that these sulfur gases emitted from soils were identified as products of microbial decomposition of sulfur-containing amino acids, diethyl sulfate and reduction of sulfate.
温室气体在大气和土壤间的交换受多种因素的影响。
The greenhouse gas will be affected by various factors when exchanging between atmosphere and soil.
土壤及海洋中的细菌分解含氮化合物时，也天然地产生这种气体。
The gas is also produced naturally when bacteria in the soil and oceans break down nitrogen-containing compounds.
通过田间测坑试验研究了长期处于不同土壤水分状况下花生和早稻叶片气体交换的一些特点。
The gas exchange characteristics of peanut and early rice leaves were investigated in experimental plots under different soil water conditions over a long growth period.
主要的问题在于二氧化碳、硫化氢、氡气和其它的气体从土壤的缝隙中直接透过建筑物渗入室内的空气 中。
The main problems are related to seepage of carbon dioxide, hydrogen sulphide, radon and other gases from soil cavities directly into indoor air through perforations in the structure.
如果土壤发出嘶嘶声并冒出气体，那肯定是碱性的。
如果土壤发出嘶嘶声并冒出气体，那肯定是碱性的。
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