دورية أكاديمية
Digital mapping of soil fertility index calculated for arable soils of the Cis-Salair Drained Plain ; Цифровое картографирование степени окультуренности пахотных почв Предсалаирской дренированной равнины
| العنوان: | Digital mapping of soil fertility index calculated for arable soils of the Cis-Salair Drained Plain ; Цифровое картографирование степени окультуренности пахотных почв Предсалаирской дренированной равнины |
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| المؤلفون: | Гопп, Наталья Владимировна, Нечаева, Таисия Владимировна, Савенков, Олег Александрович, Смирнова, Наталья Валентиновна, Смирнов, Валентин Валентинович, Смирнов, Александр Валентинович |
| المصدر: | The Journal of Soils and Environment; Vol. 1 No. 1 (2018): The Journal of Soils and Environment; 32-44 ; Почвы и окружающая среда; Том 1 № 1 (2018): Почвы и окружающая среда; 32-44 ; 2618-6802 ; 10.31251/pos.v1i1 |
| بيانات النشر: | ФГБУН Институт почвоведения и агрохимии СО РАН |
| سنة النشر: | 2018 |
| المجموعة: | The Journal of Soils and Environment / Почвы и окружающая среда |
| مصطلحات موضوعية: | рН, гумус, легкоподвижный и подвижный фосфор, обменный калий, запасы надземной фитомассы, агрочернозем, агротемно-серая, агросерая, цифровое картографирование, humus, mobile phosphorus, exchangeable potassium, aboveground phytomass, Chernozem, Phaeozem, digital mapping |
| الوصف: | The article describes comparison of soil fertility indices (SFI) calculated for the ploughed layer of arable soils differing in soil organic matter (SOM) content: with high (5-8%) and medium (3-5%) SOM content. The studied soils were located on erosion-prone slope at different altitudes: soils with high SOM at 280-310 m, and soils with medium SOM at 190-280 m a.s.l. The study area was located in the interfluve area between the Irba and the Hiruzovka rivers in the Cis-Salair drained plain in the south-east of West Siberia. The soil types common there are Greyzemic Luvic Chernozems (Siltic, Aric, Pachic), Phaeozems (Siltic, Аric), Greyzemic Phaeozems Colluvic (Siltic, Taptomollic). The SFI were calculated in two steps. First, the relative indices (RI) for every agrochemical property, i.e. pHKCl, SOM, acetic acid extractable phosphorus (P) and exchangeable potassium (K), were calculated on the basis of respective minimal and optimal soil concentrations and crop requirements. Second, the SFI were calculated as sums of the relative indices divided by 4. The resultant SFI values were rated according to the scale where values below 0.4 indicate low fertility; values ranging 0.41-0.60 indicate moderate fertility, whereas values ranging 0.81-1.0 indicate high fertility. The digital maps of the RI and SFI were created using raster calculator in ENVI software, which allows performing mathematical operations with quantitative parameters of raster image pixels in GeoTIFF format. The values of relative indices in raster cells exceeding 1 (that is when factual content is higher than the optimal one) were substituted with 1 by specially developed program called ZChanger. Then the SFI map was created for erosion-risky slopes using as a basis the digital maps of the relative indices for pHKCl, SOM, P and K. Phosphorus was extracted by two different extragents, namely 0.5 М acetic acid (PAA) and 0.1 М ammonium malate (PAM). Soil fertility index was rated as medium irrespective of SOM content and soil type due to the high PAA ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf; text/html |
| اللغة: | Russian |
| العلاقة: | https://soils-journal.ru/index.php/POS/article/view/7/11Test; https://soils-journal.ru/index.php/POS/article/view/7/84Test; https://soils-journal.ru/index.php/POS/article/view/7Test |
| الإتاحة: | https://doi.org/10.31251/pos.v1i1Test https://soils-journal.ru/index.php/POS/article/view/7Test |
| حقوق: | Copyright (c) 2018 Почвы и окружающая среда |
| رقم الانضمام: | edsbas.3AB29408 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |