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CHANGES IN SOIL CARBON STOCK AFTER CROPLAND CONVERSION TO GRASSLAND IN RUSSIAN TEMPERATE ZONE: MEASUREMENTS VERSUS MODEL SIMULATIONстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 апреля 2017 г.
- Авторы: Heikkinen J., Regina K., Kurganova I., Lopes de Gerenyu V., Palosuo T.
- Журнал: Nutrient Cycling in Agroecosystems
- Том: 98
- Номер: 1
- Год издания: 2014
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 97
- Последняя страница: 106
- DOI: 10.1007/s10705-014-9599-8
- Аннотация: The collapse of Soviet Union in early 1990s led to abandonment of large area of arable land which is assumed to act as a carbon (C) sink. We studied the ability of two dynamic soil C models (Yasso07 and RothC) to predict changes in soil C content after cropland abandonment. The performance of the models was compared using the results of a long-term experiment in Pushchino, Moscow region (54500N, 37350E) in Russia. The experiment was divided in four combinations of fertilizer or mowing treatments on former cropland soil. The soil C content was determined in the year of establishment (1980) and thereafter in 1999 and 2004. The soil C stocks increased by about 1.5- to 1.8-fold during the study period. Both models predicted the overall change in soil C relatively well (modelling efficiency of Yasso07 and RothC were 0.60 and 0.73, respectively). According to the models, the soil gained on average 140–150 g C m-2 year-1 during the first 5 years after conversion of cropland to grassland. The C sequestration rate decreased to 40–50 g C m-2 year-1 after 20 years of land use change. The sequestration rates estimated in this study are comparable to the rates observed in other studies.
- Добавил в систему: Курганова Ирина Николаевна