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Влияние зарастания древесной растительности, вышедшей из-под сельскохозяйственного пользования пашни, на почву

Authors: Korovyakova, T. A.; Abramova, L. P.; Magasumova, F. G.; Zeinalova, M. N.;

Влияние зарастания древесной растительности, вышедшей из-под сельскохозяйственного пользования пашни, на почву

Abstract

Проведено изучение морфологических и агрохимических свойств почв пашни, зарастающей древесной растительностью, на территории Свердловского лесничества Департамента лесного хозяйства Свердловской области (в окрестностях поселка Марамзино). Район исследования принадлежит Двуреченскому почвенному району Свердловской области, таежной зоны Средне-Уральского таежного лесного района. Исследовалась серая лесная обычная среднемощная глинистая почва. На территории объекта проходило комплексное обследование с изучением всех компонентов насаждения (подроста, ЖНП, подстилки, почв и т.д.) общепринятыми методиками, для того чтобы выявить, как зарастание древесной растительностью повлияло на почву, которая вышла из-под сельскохозяйственного пользования. Исследованы четыре почвенных разреза, заложенных вместе: с наибольшей густотой сформировавшегося молодняка, под пологом прилегающего к бывшей пашне леса, на начальной стадии зарастания древесной растительностью и на бывшей пашне, не успевшей зарасти древесной растительностью. Наибольшая густота сформировавшихся молодняков около стены леса – 10 940 шт./га, возрастом 11 лет, составом 8С2Б и полнотой 0,68; средними диаметром 3,2 см, высотой 3,7 м. Прилегающая стена леса имеет состав 5С5Б, возраст 70 лет, полноту 0,6, запас 180 м3/га, среднюю высоту 19 м, средний диаметр 21 см. На начальной стадии зарастания пашни формируются молодняки составом 10С+Б, полнотой 0,1, густотой 1079 шт./га, средним возрастом 8 лет, диаметром 3,1 см, высотой 3,4 м. Обнаружена связь интенсивности зарастания пашни с выраженностью протекания подзолистого процесса: чем более густая растительность сформировалась, тем интенсивнее выражен подзолистый процесс. Данные закономерности можно проследить по следующим показателям: увеличению мощности переходных горизонтов А1А2 и А2В, увеличению в них гидролитической кислотности, а также уменьшению степени насыщенности почв основаниями и увеличению обменной кислотности, облегчению гранулометрического состава. A study of the morphological and agrochemical properties of arable soil, growing woody vegetation on the territory of the Sverdlovsk forestry Department of the Sverdlovsk region (in the vicinity of the village of Maramsino). The research area belongs to the Dvurechensky soil district of the Sverdlovsk region, the taiga zone of the Middle Ural taiga forest district. On this site, the gray forest, normal, medium-sized, clay soil was studied. On the territory of the object, a comprehensive survey was conducted with the study of all components of the plantation (undergrowth, LGC, litter, soil, etc.) conventional techniques, in order to identify how the overgrowth of woody vegetation affected the soil, which came out of agricultural use. Investigated four soil cut, laid in place with the greatest density of established juveniles under the canopy adjacent to the former arable land of the forest, at the initial stage of overgrowing woody vegetation on former arable land did not manage overgrown woody vegetation. Four soil sections were studied laid in the place with the highest density of the formed young growth, under the canopy of the forest adjacent to the former arable land, at the initial stage of overgrowing with woody vegetation and on the former arable land that has not had time to overgrow with woody vegetation. The highest density of young growth around the forest wall is 10940 PCs/ha, aged 11 years, composition of 8P2B and completeness of 0,68. Average diameter of 3,2 cm with a height of 3,7 m. the Adjacent wall of the forest has a composition 5P5Б, age 70 years, a completeness of 0.6, the stock 180 m3/ha, the average altitude is 19 m, the average diameter of 21 cm. At the initial stage of overgrowing of arable land formed a young squad 10P+B, the fulness of 0,1. density 1079 PCs/ha, average age 8 years, diameter 3,1 cm, height 3,4 m. The relationship between the intensity of overgrowth of arable land with the severity of the podzolic process, the denser vegetation is formed, the more intense the podzolic process is. These regularities can be traced by the following indicators: an increase in the power of the transition horizons A1A2 and A2B, an increase in their hydrolytic acidity, as well as a decrease in the degree of saturation of the soil bases and an increase in exchange acidity, a simplifi cation of the granulometric composition.

Country
Russian Federation
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Keywords

ТИП ПОЧВЫ, UNDERGROWTH, LIVING GROUND COVER (LGC), THE COMPOSITION OF THE STAND, ЖИВОЙ НАПОЧВЕННЫЙ ПОКРОВ, FOREST, ПОДТИП ПОЧВЫ, ЛЕС, ПОЧВА, ПОДЛЕСОК, AVERAGE DIAMETER, SOIL, СРЕДНИЙ ДИАМЕТР, ВИД ПОЧВЫ, СОСТАВ ДРЕВОСТОЯ, KIND OF SOIL, РОД ПОЧВЫ, COMPLETENESS, TYPE OF SOIL, СРЕДНЯЯ ВЫСОТА, AVERAGE HEIGHT, ПОЛНОТА

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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