Agrarian
Bulletin
of the Urals

Russian Journal of Agricultural Research

The publication is registered by the Ministry of the Russian Federation
for Affairs of the Press, Television and Radio Broadcasting and Mass Communication Media.
Registration certificate: PI number 77-12831 on May 31, 2002
Subscription index in catalog «Russian Press» - 16356
ISSN 1997 - 4868 (Print)

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Journal is included in the list of VAK (from 25.09.2017), No. 291

ISSN 2307-0005 (Online)
Key title: Agrarnyj vestnik Urala (Online)
Abbreviated key title: Agrar. vestn. Urala (Online)

Аграрный вестник Урала № 09 (139) 2015

Лесное хозяйство

Залесов С. В. Доктор сельскохозяйственных наук, профессор, проректор, заслуженный лесовод России Уральский государственный лесотехнический университет

Кан В. М. доктор сельскохозяйственных наук, лауреат госпремии Республики Казахстан Институт почвоведения и агрохимии имени У. У. Успанова

Рахимжанов А. Н. главный инженер РГН «Жасыл Аймак»

УДК:630.232.2:630.114(74)

DESCRIPTION OF DARK CHESTNUT COLOWRED ALKALINE SOILS IN «AK-KAJIN» FOREST NURSERY

 The article deals with the chemical and physical showings of hard damped dark chestnut colored alkaline soils in “Ak-Kajin” forest nursery. On the basis of zoning this territory refers to the steppe zone, subzone of dry fescue-feather grass steppe. At it is noted the soils in the forest nursery are highly alkaline. This is due to heavy mechanical composition of above mentioned soil and repeated destruction of alkaline horizon by agricultural machinery. To restore these soils fertility by ordinary agronomical methods and application of mineral as well as organic fertilizers is impossible. Specific measures are required for cardinal reconstruction. In dry seasons as a result of shrinkage cracks are formed. These cracks are filled with surface horizon (layer) substances (materials). When the soils are moisture the cracks are compressed and the “unnecessary” material in the profile layer part creates pressure that leads to displacement of soil blocks and this in its turn gives rise to formation of sliding surfaces as well as micro relief “gilgay” formation. As concerns СО2 content and aqueous extract of alkalinity level dark chestnut soils in «Ak-Kajin» forest nursery do not differ significantly from zone dark chestnut soils and as concerns the degree of alkalinity and salinity degree – from tidal marshes. The dark chestnut soils of low-power and low humus significantly increases the negative impact of alkalinity in the silvicultural properties of soils. The potential fertility of the soil: by organic matter content they are low-supplied, within 1.5–2.7 %, due to the predominance of the process of alkaline hydrolysis (pH 8.4–8.75) and removal of organic elements with grown planting material. The area of forest nursery “Ak-Kajin” needs in the development and implementation of technology of making soil non-alkaline and fertility improvement, providing a change of physical and chemical properties of the latter to the level of the possibility of growing planting material.


Keywords:

hard dumped soils, dark chestnut colored soils, alkaline soils, alkalescency, forest nursery, croaking, reclamation, alkalesceness, humus.


References:

1. Azbaev B. O. Experience on creation of forest cultures of the second reception in terms of the green zone of Astana // The technology of creation of protective plantations in the suburban area of Astana. Astana, 2012. P. 40–44.

2. Azbaev B. O., Rakhimzhanov A. N., Razhanov M. R. Soils of the green zone of Astana and classification of them forest suitability // Russian forests and forestry. 2013. № 1. P. 12–14.

3. Kahn V., Rakhimzhanov A. N., Zalesov S. V. Enhancement of soil fertility in forest nurseries “Ak kajin” of the Republic of Kazakhstan // Agrarian Bulletin of the Urals. 2013. № 8. P. 39–43.

4. Khitrov N. B. The genesis, diagnosis and operation of the properties of swelling clay soils of the Central Caucasus. M., 2003. 504 p.

5. Sherba S. V. Methodology of field experiment with fertilizers // Methodology of field and vegetative experiments with fertilizers and herbicides. M. : Nauka, 1967. P. 3–69.

6. Klimentyev A. I. Soils of the steppe of Trans-Urals: a landscape genetic and environmental assessment. Ekaterinburg : Ural branch of RAS, 2000. 436 p.


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