Changes in fine root biomass of Picea abies forests: predicting the potential impacts of climate change
- Z. Y. Yuan
- X. R. Shi
- F. Jiao
- F. P. Han
- Yuan, ZY (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
DOIAbstract
Aims The impact of global warming on belowground processes, especially on fine root production, is poorly understood in comparison with its aboveground counterpart. Methods Here, we compiled 227 measurements to assess the influence of temperature and precipitation on fine root biomass of Norway spruce (Picea abies [L.] Karst) forest ecosystems in the Eurasia boreal region. Important Findings We found that fine root biomass decreased significantly with latitudes. There was a biomass increase of 0.63 Mg ha(-1) and 0.32 Mg ha(-1) for fine roots <2 and <1 mm in diameter, respectively, with 1 degrees C increase of mean annual temperature. There was an increase of 0.5 and 0.1 Mg ha(-1) per 100 mm year(-1) precipitation for the two size classes of...
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