Productivity
Along the Mendocino coastal terraces, whose geological age is approximately one million years, studies have been conducted of the biomass density and primary productivity of the Cupressus pygmaea-dominated pygmy forest. The terraces in this area extend a full five to ten kilometers inland from the Pacific Ocean.
In the Mendocino Cypress pygmy forests biomass was measured to range between 1.6 and 4.4 kilograms per square meter aboveground; moreover, net primary productivity was found to measure 180 to 360 grams per square meter per annum above the ground surface. Mean below-ground values are 3.5 kilograms biomass per square meter, productivity being 402 grams per meter per annum. The leaf-area ratio of the pygmy forest was estimated as 2.1 grams per square meter implying a high production efficiency per unit leaf area for an evergreen community (150 grams per meter aboveground ). According to Westman, productiviy of the C. pygmaea forest lie within the range expected for open, dry woodlands. A similar community for which data is available is a pygmy conifer-oak scrubland in southern Arizona.
Read more about this topic: Cupressus Pigmaea
Famous quotes containing the word productivity:
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