Descargar Woody 2.0 Sp6 Espanoll __LINK__
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Descargar Woody 2.0 Sp6 Espanoll __LINK__
Unlike woody species, grasses have the ability to store C as reserves, particularly under moisture stress. The increase in available C via annual primary production from high-growth potential species is much greater than that from species with slower growth. Other than that, there is no evidence to suggest that disturbance has a large effect on C below-ground pools. However, due to the large C pool in above-ground biomass, woody plant diversity is often over-estimated, with rangeland vegetation classed as 'high dominance' and 'low diversity' (Schultz et al. 2015 1081 ; Chapter 5).
Research has shown that increasing temperatures will likely increase the abundance and distribution of woody and herbaceous plants by raising the threshold for species to survive. Therefore, there will be more potential C for recycling via increased litter production and enhanced decomposition, as well as an overall increase in plant biomass (Frias-Lavega and Lund 2009 1087 ; Han et al. 2013 1088 ; Jones and Fischer 2007 1089 ). However, the effect of changes in temperature on plant species distribution will be partly mediated by changes in moisture availability. Plants at the upper end of the temperature-rainfall gradient, which are most sensitive to changes in temperature, would be expected to shift their niche toward the lower end of the spectrum. Species in the lower end of the spectrum, which have better C tolerances and thus are less sensitive to changes in temperature, may also shift their niche to the upper end of the spectrum, because temperature rise will enhance moisture availability in these areas. 3d9ccd7d82