Scaling of tree vascular transport systems along gradients of nutrient supply and altitude

Investigating whether trees growing at high altitude or on nutrient-depleted soils prioritise survival over minimising hydraulic resistance by narrowing xylem distally or of their vascular systems would be structured differently from those of trees growing under more benign conditions. Conduits were observed to narrow towards the periphery of vascular system within all members of all species investigated, and scaling relation-ships were indistinguishable across a range of environments.

Coomes, D.A.; Jenkins, K.L.; Cole L.E.S.
2006
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Rapid deforestation and fragmentation of Chilean Temperate Forests

Three land-cover maps were derived from satellite imagery acquired over 25 years (1975, 1990 and 2000), and were used to assess the patterns of deforestation and forest fragmentation in the coastal range of south-central Chile. Between 1975 and 2000, there was a reduction in natural forest area of 67% in the study area, which is equivalent to an annual forest loss rate of 4.5% per year using a compound-interest-rate formula.

Echeverria, C.; Coomes, D.A. et al.
2006
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