NDLI: Changes in soil carbon stock after cropland conversion to grassland in Russian temperate zone: measurements versus model simulation

Content Provider	Springer Nature Link
Author	Heikkinen, Jaakko Kurgava, Irina Lopes de Gerenyu, Valentin Palosuo, Taru Regina, Kristiina
Copyright Year	2014
Abstract	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 (54°50′N, 37°35′E) 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.
Starting Page	97
Ending Page	106
Page Count	10
File Format	PDF
ISSN	13851314
Journal	Nutrient Cycling in Agroecosystems
Volume Number	98
Issue Number	1
e-ISSN	15730867
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-01-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Soil organic carbon Modeling Land-use change Temperate zone Abandonment of arable land Agriculture
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Soil Science

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