Non instrumental method in Forest Mensuration
Non instrumental method Single pole Method Shadow method 1)Single pole Method: The single pole method is a practical technique for estimating the height of a tree using a pole of a known length. Here's a simplified explanation of the method: Materials Needed - A pole (approximately 1.5 meters long) Steps to Measure Tree Height 1.Positioning the Pole - Hold the pole vertically at arm's length with one hand. - Ensure that the length of the pole above your hand (let's call this segment "ab") is equal to the distance from your eye to the point where you hold the pole ("Eb"). 2.Finding the Right Spot - Move forward or backward until the tip of the pole aligns with the tip of the tree (point A) when you look straight ahead. - At the same time, ensure that the point where you hold the pole (point B) aligns with the base of the tree (point C). 3. Understanding the Geometry - In this scenario, the following relationships hold: - The height of the tree (AB) i...