Read e-book online The Soils of Bulgaria PDF

By Toma Shishkov

ISBN-10: 9400777833

ISBN-13: 9789400777835

ISBN-10: 9400777841

ISBN-13: 9789400777842

The Soils of Bulgaria bargains a finished research of the features of soils and ideas on their significance. the aim of the e-book is to introduce readers to the soil troublesome and ecology in Bulgaria. the quantity is split into three elements. the 1st comprises ancient evidence on soil study in Bulgaria, in addition to normal stipulations and elements of soil formation, whereas the second one applies an unique pedological method. The book’s 3rd half specializes in crucial info referring to land use/cover in Bulgaria. all the thirteen chapters offers extra particularly with basic chemical and actual soil homes, techniques of soil evolution, outdated and smooth approaches, geographic distribution, weather conditions, topography, father or mother fabrics, plant institutions, morphology and the connection with diverse category structures. The interactions among soil prestige and administration also are highlighted. using the most recent, statistically major facts guarantees certain conclusions. The booklet additionally encompasses a huge variety of charts and new illustrations. The Soils of Bulgaria is essential interpreting fabric for a person attracted to soil administration and agriculture in Easter Europe, from scholars to coverage makers and can be of specific curiosity for researchers within the field.

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Extra resources for The Soils of Bulgaria

Sample text

There is sequence in the spatial relation of the soils in the country. Chernozems, dark gray-brown, and gray-brown forest soils prevail in north Bulgaria. There is a belt of calcareous and typical chernozems along the Danube River; in central north Bulgaria they gradually turn into leached Fig. 15 Distribution of soil resources in Bulgaria according to the digital map 1:400 000 (Koynov et al. 3 Conditions and Factors of Soil Formation and degraded (podzolized) chernozems and finally into gray-brown forest soils to the south of the hilly Danube Plain (Koynov 1964).

5 % of the entire territory. As the angle of slope increases, erosion hazard takes place resulting in shallow soils on strongly sloping terrain. In Bulgaria nearly 3,730,000 ha or 65 % of land use is affected by water erosion, and nearly, 1,350,000 ha or 24 % of land use is affected by wind erosion (Rousseva et al. 2006). In sloping areas erosion is common due to the accelerated run-off. 2 % of the land has a slope over 6°. 055 t ha h/ha MJ mm; and susceptibility to wind erosion (WEQ-I) is from 100 to 375 t/ha y.

Precise classification scheme, Institute of Soil Science Nikola Poushkarov, Sofia (In Bulgarian) Yolevski M, Hadzhiyanakiev As, Georgieva Y et al (1989) Agroecological regioning of territory of Bulgaria. 1 Chernozems In this chapter, information is given regarding those soils that have been accorded Bulgarian classification, such classification being made official by use during the large soil survey of the country as follows: Koynov et al. (1964), Yolevski and Hadzhiyanakiev 1976. Calculation of the mechanical composition (texture) from the entire soil mass was carried out according to the method of Kachinskiy (revised), where carbonates were destroyed and particles were peptized with alkali (Kachinskiy 1965).

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The Soils of Bulgaria by Toma Shishkov

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