土壤有机矿质复合体研究Ⅵ.胶散复合体的化学组成及其结合特征
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*国家自然科学基金;中国科学院土壤圈物质循环开放研究实验室基金


STUDIES ON ORGANO-MINERAL COMPLEXES IN SOIL Ⅵ. CHEMICAL COMPOSITION AND COMBINED CHARACTERISTICS OF ORGANO-MINERAL COMPLEX
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    摘要:

    本文研究水热条件渐变的地带性土壤中G1、G2组胶散复合体有机、无机物的化学组成及其结合特点。结果表明:G2组中铁有积累现象,游离态铁、铝氧化物含量为G2>G1,但均随土壤类型变化。松结态腐殖质(H1)为G1>G2,紧结态腐殖质(H3)则为G1<G2。可提取腐殖质中,松、稳结态腐殖质之比值H1/H2和胡敏酸、富里酸之比值HA/FA,除个别上壤之外,都相差不大。G1、G2两组复合体中都含有一定数量的络合态铁、铝和钙。初步认为G2中腐殖质总量及胡敏素量均高于G1,但不能区分为钙键复合体和铁铝键复合体。

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    This paper deale with the chemical composition of organic and inorganic components and their combined characteristics in G1 and G2 organo-mineral complexes.It was found that iron tended to accumulate in G2 fraction.The contents of free Fe and Al oxides were higher in G2 than in G1 in all soil samples.The loosely combined humus(H1) was more in G1 than in G2,but an opposite trend existed for tightly combined humus (humin).A little differences of the ratios of loosely combined humus to stably combined humus(H1/H2) and humic acid to fulvic acid(HA/FA) were observed between G1 and G2 fractions in most of the soil samples.Both G1 and G2 fractions contained some complex Fe,AI and Ca.It was concluded that the total amount of humus and humin of G2 was higher than that of G1,but G1 and G2 organomineral complexes could not be regarded as Ca-combined and Fe and Al-combined complexes,respectively.

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徐建民,袁可能.土壤有机矿质复合体研究Ⅵ.胶散复合体的化学组成及其结合特征[J].土壤学报,1994,31(1):26-33. Xu Jianmin, Yuan Keneng. STUDIES ON ORGANO-MINERAL COMPLEXES IN SOIL Ⅵ. CHEMICAL COMPOSITION AND COMBINED CHARACTERISTICS OF ORGANO-MINERAL COMPLEX[J]. Acta Pedologica Sinica,1994,31(1):26-33.

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  • 在线发布日期: 2013-02-25
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