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The Soil Enzyme Activities with Age of Tea in Three Gorges Reservoir Area

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Abstract:

Enzyme activities play key roles in the biochemical functioning of soils, including soil organic matter formation, degradation and nutrient cycling. Activities of invertase, urease, and catalase were analyzed at different age of tea garden. The results showed that urease activity only showed a significantly negative relationship with the age of tea, and a significant positive relationship with organic carbon. This indicated that soil urease acitivity could respond well to the change of soil organic carbon and is a more sensitive indicator of soil fertility than other enzyme activities. The study also found that the organic carbon was relatively low in 50yr site, compared with lower age of sites. This may be caused by the high activities of invertase and catalase per unit of organic carbon in the soil of tea which tends to help decompose and therefore decrease the organic carbon in soil

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

1292-1296

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.1292

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Online since:

July 2014

Authors:

Li Ping Zhang, Guo Mei Jia*, Ying Xi

Keywords:

Catalase, Soil Invertase, Tea Garden, Urease

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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