Biologically Active Organic Matter in Soils of European Russia


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Experimental and literature data on the contents and stocks of active organic matter in 200 soil samples from the forest-tundra, southern-taiga, deciduous-forest, forest-steppe, dry-steppe, semidesert, and subtropical zones have been generalized. Natural lands, agrocenoses, treatments of long-term field experiments (bare fallow, unfertilized and fertilized crop rotations, perennial plantations), and different layers of soil profile are presented. Sphagnum peat and humus–peat soil in the tundra and forest-tundra zones are characterized by a very high content of active organic matter (300–600 mg C/100 g). Among the zonal soils, the content of active organic matter increases from the medium (75–150 mg C/100 g) to the high (150–300 mg C/100 g) level when going from soddy-podzolic soil to gray forest and dark-gray forest soils and then to leached chernozem. In the series from typical chernozem to ordinary and southern chernozem and chestnut and brown semidesert soils, a decrease in the content of active organic matter to the low (35–75 mg C/100 g) and very low (<35 mg C/100 g) levels is observed. Acid brown forest soil in the subtropical zone is characterized by a medium supply with active organic matter. Most arable soils are mainly characterized by low or very low contents of active organic matter. In the upper layers of soils, active organic matter makes up 1.2–11.1% of total Corg. The profile distribution of active organic matter in the studied soils coincides with that of Corg: their contents appreciably decrease with depth, except for brown semidesert soil. The stocks of active organic matter vary from 0.4 to 5.4 t/ha in the layer of 0–20 cm and from 1.0 to 12.4/ha in the layer of 0–50 cm of different soil types.

Негізгі сөздер

Авторлар туралы

V. Semenov

Institute of Physicochemical and Biological Problems of Soil Science

Хат алмасуға жауапты Автор.
Email: v.m.semenov@mail.ru
Ресей, Pushchino, 142290

B. Kogut

Dokuchaev Soil Science Institute

Email: v.m.semenov@mail.ru
Ресей, per. Pyzhevskii 7, Moscow, 119017

N. Zinyakova

Institute of Physicochemical and Biological Problems of Soil Science

Email: v.m.semenov@mail.ru
Ресей, Pushchino, 142290

N. Masyutenko

All-Russia Research Institute of Arable Farming and Soil Erosion Control

Email: v.m.semenov@mail.ru
Ресей, Kursk, 305021

L. Malyukova

All-Russia Research Institute of Floriculture and Subtropical Crops

Email: v.m.semenov@mail.ru
Ресей, Sochi, 354002

T. Lebedeva

Institute of Physicochemical and Biological Problems of Soil Science

Email: v.m.semenov@mail.ru
Ресей, Pushchino, 142290

A. Tulina

Institute of Physicochemical and Biological Problems of Soil Science

Email: v.m.semenov@mail.ru
Ресей, Pushchino, 142290


© Pleiades Publishing, Ltd., 2018

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