20150529

Author : Borken, W. Savage, K. Davidson, E. A. Trumbore, S. E.
Year : 2006
Title : Effects of experimental drought on soil respiration and radiocarbon efflux from a temperate forest soil
Journal : Global Change Biology
Comment Prolonged drought periods in 1995, 1998, and 1999 at the Harvard Forest resulted in decreased soil respiration rates in the uplands, particularly once soil moisture contents decreased below about -150 kPa. In contrast, wetland respiration increased upon drying. The inter-annual variation soil respiration at the Harvard Forest, 0.23 kg C m-2 yr-1, exceeds the inter-annual variation in net ecosystem exchange (NEE), 0.14 kg C m-2 yr-1 previously measured for this forest, indicating that inter-annual variation in soil respiration can have an important influence on NEE.

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