Application and verification of the soil-ecological index for assessing soil cover patterns on plowlands
| Autor: | I. I. Karmanov, V. V. Gribov, N. V. Savitskaya, T. N. Avdeeva, D. S. Bulgakov, N. P. Sorokina |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Eurasian Soil Science. 46:1088-1096 |
| ISSN: | 1556-195X 1064-2293 |
| DOI: | 10.1134/s1064229313110021 |
| Popis: | The reformation of Russian agriculture and the development of landscape-adaptive agricultural systems have generated interest in the agroecological aspects of studying soil cover patterns. The qualitative evaluation of soil resources is necessary for objective comparison of their quality at the landscape, regional, and interregional levels. The applicability of the soil-ecological index (SEI) as an integral criterion for quality assessment of soils, soil associations, and soil cover patterns on the basis of a common all-Russia scale has been experimentally verified on test plots. This index can also be applied for assessing the degree of contrast in the soil cover. The analysis of different soil-climatic regions in the European part of Russia has shown that the SEI value is well correlated with the soil-climatic conditions. However, for a particular farm, the climatic component of the SEI becomes equal for all the fields. At the same time, the soil properties and geomorphic conditions limiting soil fertility are usually different for different soil combinations, and they become essential upon calculation of the SEI for the particular field. Feasibility of verification and correction of the calculated SEI on the basis of experimental data is shown. This makes it possible to find better-grounded decisions on the agrotechnologies applicable for a given field. |
| Databáze: | OpenAIRE |
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