英语翻译The distribution of organic matter among the size fractions of soil is related to levels of free oxides (Fe and Al) (Curtin 2002),which provide loci for attachment of organic functional groups to mineral surfaces (Kaiser and Guggenberger
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英语翻译The distribution of organic matter among the size fractions of soil is related to levels of free oxides (Fe and Al) (Curtin 2002),which provide loci for attachment of organic functional groups to mineral surfaces (Kaiser and Guggenberger
英语翻译
The distribution of organic matter among the size fractions of soil is related to levels of free oxides (Fe and Al) (Curtin 2002),which provide loci for attachment of organic functional groups to mineral surfaces (Kaiser and Guggenberger 2000).Adsorption of Pi is also related to free oxide concentrations (Agbenin and Tiessen 1994).Thus,the distribution of Po among the mineral fractions of soil should be broadly similar to that of Pi,as was observed by Tiessen and Stewart (1983).There was a reasonably strong correlation (R2=0.63,P
英语翻译The distribution of organic matter among the size fractions of soil is related to levels of free oxides (Fe and Al) (Curtin 2002),which provide loci for attachment of organic functional groups to mineral surfaces (Kaiser and Guggenberger
中间分布的有机物质的大小有关,水平的免费氧化物(铁和铝)(2002),提供专业的附件的位点有机官能团对矿物表面(2000),Guggenberger凯泽·波莫恩特医院.吸附Pi也与自由的氧化物含量(1994),Tiessen Agbenin中心点,分布在矿物馏份订单的土壤应大致相似,被观测到Pi Tiessen和斯图尔特(1983).有一个合理的强大支持,R2相关(P < 0.001),整体LF-Po土壤即可.有一种解释这个观察,对矿物材料吸附订单
代表的比例很高,在保一致的看法,在真空中大部分现在免费有机物(1993),Gregorich和Ellert LF-C
只有弱相关(R2 = 0.25%,P < 0.05),C浓度的整体的土壤.在给定的比例明显相似的矿物材料在LF和
整个土壤,是合理的假设,如Pi(图2),mineral-associated博在真空定量相似,将整个博浓度假设基础上的一个1:1 mineral-associated之间的关系及土壤中宝,可以计算出真空从数据表1号和3号,多数(63-76%),当用何法捆绑LF-Po矿物表面,只有大约1 / 4到1 / 3的订单是在non-humic组成部分(表4)的真空.这些估计只提供粗糙近似相对数量的订单在mineral-associated和自由的有机物质.但是,毫无疑问,保含有大量的活性矿物材料或博注定该物质可能是一种主要形式的博在真空.
作为有机C往往会有相同的大小分布在土壤和Tiessen和斯图尔特(1983),这个方法可以对上述订单
被用来获取的分布及免费LF-C有关之间的有机物质矿物质…假设这个浓度的mineral-associated C一样在真空浓缩,整个C
mineral-associated C能代表了40-50 g kg-1总共LF-organic C浓度的~250克kg-1.因此,稳定,mineral-associated C可以占20%的C在真空(表4).这个大比例的订单比C与矿物表面LF反映了一个事实对小得多(丰富博多像前面所述,平均LF富集比C和博是5.6和1.5).如果它假定这个元素(C:博;C:信噪比)的mineral-associated有机物LF类似于整个土壤有机质和由此而来的一个元素的富集表现在LF将大到相对更大程度上发现的“自由”的有机组成部分和一个比一个元素的真空浓缩率低.