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자료유형
학술대회자료
저자정보
(University of Western Sydney) (University of Western Sydney) (University of Western Sydney) (University of Western Sydney) (University of Western Sydney) (University of Western Sydney)
저널정보
한국토양비료학회 한국토양비료학회 학술발표회 초록집 20th WORLD CONGRESS OF SOIL SCIENCE
발행연도
수록면
412 - 412 (1page)

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초록· 키워드

Rising atmospheric carbon dioxide (CO2) concentrations and elevated temperatures (eT) are of global concern. Forest soils have been identified as potential C-sinks under future climate forcing, as carbon inputs to soil are generally predicted to increase under eCO2. However, a key determinant of an ecosystems ability to efficiently sequester C is the availability and sustainability of other nutrients including nitrogen (N) and phosphorus (P). This presents great uncertainty in predicting the global capacity of terrestrial ecosystems to sequester C because there are major gaps in our understanding of the interactions and feedbacks between the carbon, nitrogen and phosphorus cycles. This uncertainty is largely driven by limited understanding of the interactions and feedbacks between above- and below-ground ecosystems under climate forcing. Key to this is improving our understanding of microbial-mediated nutrient cycling in response to multiple climate change factors (eCO2 and eT). Using whole tree chambers at the Hawkesbury Forest Experiment, that allow portioning of soil and plant CO2 fluxes, we determined the interactive effect of eCO2 (+200 ppm above ambient) and eT (+3 °C above ambient) on the structure and activity o ... 전체 초록 보기
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