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首页> 外文期刊>Moscow University Soil Science Bulletin >Chemical and mineralogical characteristics of podzolic soils of the central forest reserve in the area of karst sinkholes.
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Chemical and mineralogical characteristics of podzolic soils of the central forest reserve in the area of karst sinkholes.

机译：喀斯特溶洞区域中央森林保护区梯形土壤的化学和矿物学特征。

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摘要

A specific feature of the soil developing near the edge of a sinkhole in comparison with the soil at a distance of 10 m from the sinkhole is the presence of calcareous horizon from the depth of 116 cm. The soil near the edge of the sinkhole is also characterized by the increased contents of exchangeable calcium and oxalatesoluble iron in the litter layers and in the AE horizon. This may be explained by a more active biological uptake of these elements under conditions of a shallow occurrence of carbonates. With respect to pH values; the contents and distribution of humus and exchangeable potassium, sodium, hydrogen, and aluminum; the mineralogical composition of the clay and fine silt fractions; and the distribution of oxalatesoluble iron compounds in the soil profiles, palepodzolic soils of the Central Forest State Biospheric Nature Reserve developing in karst areas do not differ from similar soils beyond karst areas.
机译：与距水池10 m处的土壤相比，在水池边缘附近发育的土壤的一个特殊特征是从116 cm深度处出现钙质层。污水坑边缘附近的土壤的特征还在于垫料层和AE层中可交换钙和草酸可溶性铁的含量增加。这可能是由于在碳酸盐含量较浅的条件下，这些元素的生物吸收更为活跃。关于pH值;腐殖质和可交换的钾，钠，氢和铝的含量和分布;粘土的矿物组成和细粉质级分;并且草酸盐可溶性铁化合物在土壤剖面中的分布，在喀斯特地区发展的中央森林国家生物圈自然保护区的古土壤与在喀斯特地区以外的类似土壤没有区别。

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