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首页> 外文期刊>Moscow University Soil Science Bulletin >EFFECT OF AFFORESTATION ON POTASSIUM AND PHOSPHORUS STATUS IN CHERNOZEM-LIKE SOILS OF MESODEPRESSIONS IN THE SEMIDESERT ZONE OF THE NORTHERN CASPIAN PLAIN
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EFFECT OF AFFORESTATION ON POTASSIUM AND PHOSPHORUS STATUS IN CHERNOZEM-LIKE SOILS OF MESODEPRESSIONS IN THE SEMIDESERT ZONE OF THE NORTHERN CASPIAN PLAIN

机译：造林对北卡宾平原半沙漠地带中压低压切尔诺森样土壤中钾和磷状况的影响

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摘要

High-quality forests of English oak and Siberian elm were grown in mesodepressions of the semideseit zone of the Northern Caspian Plain (the Dzhanybek experimental ground of the Russian Academy of Sciences) Mesodepressions are closed rounded lowlandsor depressions, 1 to 1,5 m deep, with an area of dozens to hundreds of hectares Once eveiy few years the lowlands are flooded with melt waters that wet the soils down to the groundwater table. The natural conditions here favor the development of plant associations with prevalence of common tipchak, Lessing kovyls, and tyrsa with an admixture of steppe motley grasses, Chernozem-like soils that form here are characterized by distinct humus-accumulative and carbonate horizons and, according to the generally accepted classification, are considered most similar to meadow chestnut soils. The plain between the lowlands is occupied by solonetz-complex soils: solonchak, light chestnut, and dark soils, At 5-7 m under the depressions there are lenses of fresh groundwater available to the roots of arboreal plants, which makes it possible to grow valuable forest crops despite local semidesert conditions.
机译：在北里海平原（俄罗斯科学院的Dzhanybek实验地）的半消融带的中压区中生长了优质的英国橡树和西伯利亚榆林。中压区是封闭的圆形低地凹陷，深1至1.5 m，几十到几百公顷的土地每隔几年，低地就会被融化的水淹没，使土壤湿润到地下水位。这里的自然条件有利于植物群落的发展，其中常见的是常见的,、莱辛科维氏菌和酪氨酸，以及杂色杂草，这里形成的黑钙土样土壤具有腐殖质积累和碳酸盐岩层的独特特征。一般公认的分类被认为与草地栗子土壤最相似。低地之间的平原被solonetz复杂的土壤所占据：solonchak，浅栗色和深色土壤，在洼地下5-7 m处，树栖植物的根部可以利用新鲜的地下水，这使得它可以生长尽管当地有半荒漠条件，但有价值的森林作物。

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