大兴安岭北部的灰化土
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PODZOLIC SOILS IN NORTHERN PART OF DA XINGANLING
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    摘要:

    大兴安岭北部,即伊勒呼里山以北的大兴安岭主体部分,大致位于北纬51°20'—53°28',东经121°31'—126°30'之间,是我国的最北端。其地带性土壤类型,过去说法不一,曾有人命名为生草灰化土1)、棕色灰化土、棕色泰加林土2)、灰白色森林土(中国科学院内蒙古宁夏综合考察队等,1978)、棕色针叶林土3)、漂灰土(中国科学院南京土壤研究所主编,1978)等。

    Abstract:

    The present paper deals with the formation and classification of podzolic soils developed under cool-temperate zone with coniferous forest in northern part of Da Xinganling. Evidence from field survey and laboratory investigation indicated that the podzolization is the principal soil forming process in this region. The salient genetical characteristics are as follows:(1) By the study of soil humus, it has been shown that the organic matter of soil almostly keeps in partly decomposed form, the composition of humus is mainly fulvic acid and the ratio of A/F remains 0.08-0.61. In addition, in comparison with humic acid in strongly podzolized soils in some other regions, the nature of light density of humus acid in this soil is just about the same. The value of E4:E5 is near 5. The degree of structure condensation of humic said is decreased, whereas the fatty branched chain and the degree of ionization are increased. Under such condition, the ability of chelation with R2O3 by soil humus is accelerated and thereby promoted the development of podzolization of the soil.

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熊国炎,赵其国,王明珠.大兴安岭北部的灰化土[J].土壤学报,1979,16(2):110-126. Xiong Guo-yan, Zhao Qi-guo, Wang Ming-zhu. PODZOLIC SOILS IN NORTHERN PART OF DA XINGANLING[J]. Acta Pedologica Sinica,1979,16(2):110-126.

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  • 在线发布日期: 2013-02-25
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