![]() ![]() Of a cutting cycle and an exploration intensity more compatible with the growth rate of the forest and for each species. The growth and production models depict a synthesis of the growth dynamics of the forest, allowing to providing fundamental information for the definition of planning strategies, such as the establishment Thus, using the cutting time of 25 to 35 years and a minimum cutting diameter of 50 cm for these species, can lead to incorrect decisions about the intensity of logging or the appropriate length of the cutting cycle. guianensis and from 21 to 38 years for the species T. Results showed that the estimated cutting cycle varied from 24 to 45 years for the species C. guianensis and from 0.37 to 0.65 mm.year-1 for T. Varied from 0.31 to 0.58 cm.year-1 for C. Using the Pienaar and Schiver model with a random effect, the average annual diameter increase The average annual increment in diameter estimated with the Pienaar and Schiver model with fixed effect was 0.38 cm.year-1 for C. Time of passage for each species studied was calculated. Thus, structures of variance and autocorrelation were added to this model to correct heteroscedasticity and autocorrelation. The best fixed-effect model was Pienaar and Schiver. Four models with fixed effects were tested and best model was selected as the base model for the incorporation of random effects. In view of the above, the present research aimed to evaluate the accuracy of regression models for the projection of growth in diameter and to calculate the t by diametric class for trees of the species C. Such legislation provides for a cutting cycle that can vary from 25 to 35 years and a minimum cutting diameter of 50 cm. Hectare to Square Foot Conversion Table Hectare ġ5 ha = 15 × 107639.1041671 ft^2 = 1614586.In forests of the Amazon biome, Sustainable Forest Management Plans are based on technical guidelines. In these countries, area in real estate, architecture, and of interior spaces is often specified in terms of square footage. It is a measurement derived from the area of a square with a side length measured in feet.Ĭurrent use: The square foot is mainly used in the United States but is also used to some extent in countries such as the United Kingdom, Canada, Malaysia, Singapore, Pakistan, Bangladesh, India, and Hong Kong. History/origin: The origin of the square foot can be seen in the term itself. One square foot equals 144 square inches. ![]() It is defined as the area of a square with one-foot sides. Even though it is not an SI unit (just a unit accepted for use with SI) the SI brochure states that the use of the hectare is expected to "continue indefinitely." Square footĭefinition: A square foot (symbol: sq ft) is a unit of area used in the imperial and US customary systems (UCS). The "are" is still used in certain areas when referencing real estate, particularly in India, Indonesia, and a number of European countries.Ĭurrent use: Hectares are primarily used to measure land area around the world. The term hectare is derived from the metric prefix "hecto," denoting a factor of one hundred, and the metric area "are," a metric unit for measuring area that has fallen out of use in SI. History/Origin: The hectare was first introduced in 1795 as part of the metric system. One hectare is equal to 10,000 square meters and is equivalent to approximately 2.471 acres. ![]() It is primarily used to measure land area. ![]() Definition: A hectare (symbol: ha) is a unit of area that is accepted in the International System of Units (SI). ![]()
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