Responses of soil beta-glucosidase activities to simulated increased precipitation in a semi-arid temperate grasslands

• Autorzy: Rui X. , Liang D.
• Języki publikacji: EN

Abstrakty

EN

In concurrent with global warming, precipitation regimes are predicted to change as well around the world. In this study, two experimental sites were selected with different nutrient availability along a slope to study the effects of simulated increased precipitation on soil β-glucosidase activities in an Inner Mongolian grassland. Soil samples were adjusted to 55% of water holding capacity and incubated at 22°C in the dark for 32 days. Soil β-glucosidase activities were measured prior to and after the incubation. Results showed that soil β-glucosidase activities had differential responses to increased precipitation with a significant increase in the downslope site, but not in the upslope site. Correlation analysis showed that the initial soil β-glucosidase activities exerted a significantly negative relationship with soluble organic nitrogen (N). Our results indicated that both water availability and soil soluble N availability played important roles in regulating β-glucosidase activities in this semiarid region.

Słowa kluczowe

EN

precipitation; beta-glucosidase activity; soil enzyme; semi-arid grassland; incubation; Inner Mongolia; grassland

• Wydawca: -
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2013
• Tom: 61
• Numer: 2
• Opis fizyczny: p.401-404,fig.,ref.

Twórcy

autor

Rui X.

• College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China

autor

Liang D.

• State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China

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