Forest Mensuration and Management Quiz

<p>The growth and yield of forest resources and the effects of management activities. (A)</p> Signup and view all the answers

<p>Where, when, how, and how much forest land should be treated. (B)</p> Signup and view all the answers

<p>To analyze the impacts of management activities on forest resources and the forest itself. (B)</p> Signup and view all the answers

<p>To determine the yield for commercial purposes. (B)</p> Signup and view all the answers

<p>To supply information for forest management planning and industry establishment. (C)</p> Signup and view all the answers

<p>To broaden the scope of forest valuation and management. (D)</p> Signup and view all the answers

<p>Guiding decisions for setting up industries. (A)</p> Signup and view all the answers

<p>Offers opportunities for creative problem-solving and critical thinking. (B)</p> Signup and view all the answers

<p>Application of statistical theory, computer use for data processing, and forecast of future yields (A)</p> Signup and view all the answers

<p>The purpose of measurement, form of the product, and quality/value of product (C)</p> Signup and view all the answers

<p>Systematic distortion arising from a flaw in measurement. (A)</p> Signup and view all the answers

<p>To obtain reasonable and relative accuracy that is profitable and possible in practice. (D)</p> Signup and view all the answers

<p>Identifying the causes of the systematic error. (A)</p> Signup and view all the answers

<p>Arbitrarily shifting field plot locations to capture typical samples. (C)</p> Signup and view all the answers

<p>The cost of equipment. (C)</p> Signup and view all the answers

<p>The closeness of agreement between independent results of measurements obtained under stipulated conditions. (A)</p> Signup and view all the answers

<p>Theoretical precision (C)</p> Signup and view all the answers

<p>Absolute Accuracy (B)</p> Signup and view all the answers

<p>The lack of knowledge of the true value of a variable, describable as a probability density function. (C)</p> Signup and view all the answers

<p>Random error is inversely proportional to precision. (C)</p> Signup and view all the answers

<p>Uncertainty, including random errors and bias. (C)</p> Signup and view all the answers

<p>Early mornings or late evenings on clear sunny days (C)</p> Signup and view all the answers

<p>It is difficult to apply in well-stocked forests. (D)</p> Signup and view all the answers

<p>AB = EB where (ab=Eb) (D)</p> Signup and view all the answers

<p>Using geometrical principles of similar triangles and relations between sides of right-angled triangles. (D)</p> Signup and view all the answers

<p>Hypsometers (C)</p> Signup and view all the answers

<p>Clinometer (A)</p> Signup and view all the answers

<p>Altimeter (B)</p> Signup and view all the answers

<p>Hypsometers (A)</p> Signup and view all the answers

<p>Soil pH level (B)</p> Signup and view all the answers

<p>Gradual reduction in diameter and girth from base to top (D)</p> Signup and view all the answers

<p>Tree shapes are complex and irregular (A)</p> Signup and view all the answers

<p>Felling the tree and measuring water displacement (C)</p> Signup and view all the answers

<p>Applying properties of geometric solids to linear measurements (C)</p> Signup and view all the answers

<p>Neiloid (B)</p> Signup and view all the answers

<p>Cone (B)</p> Signup and view all the answers

<p>Total stem wood volume (D)</p> Signup and view all the answers

<p>On the uphill side of the tree. (A)</p> Signup and view all the answers

<p>Along the tree stem, following its lean. (B)</p> Signup and view all the answers

<p>Shift the breast height mark slightly to a more normal position on the stem and then measure the diameter. (D)</p> Signup and view all the answers

<p>Measure dbh a little above the buttress. (B)</p> Signup and view all the answers

<p>Wooden scale, caliper and tape. (B)</p> Signup and view all the answers

<p>Biltmore stick, Penta-prism, Bar and Dendrometer. (A)</p> Signup and view all the answers

<p>Diameters can be read directly, enabling precise scientific work. (A)</p> Signup and view all the answers

<p>The point arms compress the bark against the tree bole. (D)</p> Signup and view all the answers

The science of measuring forest composition, structure, and resources.

Provides data for decision-making about forest use and management.

Estimations of how forest resources will grow over time.

Variables used to improve the efficiency of forest sampling methods.

Using technology to gather data about forests from a distance.

Techniques used to assess forest resources and conditions.

Effective forest management tools depend on high-quality data inputs.

Mathematical principles guiding the selection of samples from a population.

To assess timber volume, yield, and management planning.

Measurement of annual growth in timber volume.

Systematic error affecting measurement accuracy.

Sources of systematic error like miscalibrated tools.

The closeness of an estimate to the true value.

The consistency of measurements across samples.

Techniques based on purpose, product form, and precision.

Strategic planning for sustainable forest resource use.

Measurement of tree diameter at 1.3 meters above ground on the uphill side.

DBH is measured along the stem of a leaning tree, not vertically.

If buttresses are present, measure DBH above them to avoid inaccuracies.

Instruments like calipers and tapes are used to measure tree DBH.

Commonly used in developing countries for measuring tree girth and DBH.

Made of graduated ruler and two arms, one fixed and one movable.

Allow for direct reading of diameters and avoid irregularities in measurement.

Calipers provide precise measurements, compensating for potential errors.

Precision justified on theoretical grounds, e.g., angles in a triangle.

Precision necessary for a specific application or purpose.

Precision that can actually be obtained from measurement equipment.

Lack of knowledge about the true value of a variable, described by a probability density function.

Variation in measurements that leads to inconsistencies away from the mean value.

Systematic deviation from the true value in measurements.

A technique to estimate tree height using the shadow length of a pole.

Formula used in the Shadow Method: AB/ab = BD/bd.

Using a pole and observer's distance to estimate tree height.

Instruments for measuring tree height from a distance.

Instruments that measure altitude to determine tree height.

Devices measuring the angle of slope for height estimation.

Methods that use geometric principles to measure height.

An instrument for measuring angles to determine heights.

The form of the tree above ground, including stem and crown, influenced by species, age, and density.

The gradual reduction in diameter and girth of a tree from base to top, varying in degree along its height.

The intricate shape of a tree that complicates accurate volume measurement without cutting it down.

Tree parts can approximate shapes like neiloid, conoid, and paraboloid for volume measurement.

Total volume calculated by summing the volumes of individual segments of a tree.

A geometrical shape used to calculate the volume of the lower section of a tree trunk.

A shape that helps determine the volume of the main part of the tree trunk.

Formulas used to compute the volumes of geometric shapes corresponding to tree segments.