For example, if you weigh 200 pounds, a 5 percent weight loss equals 10 pounds, bringing your weight down to 190 pounds. While this weight may still be in the overweight or obese range, this modest weight loss can decrease your risk factors for chronic diseases related to obesity.
Tree basal area. Tree Basal Area (TBA) is the cross-sectional area (over the bark) at breast height (1.3 metres above the ground) measured in metres squared (m2). TBA can be used to estimate tree volumes and stand competition.ree Basal Area (TBA) is the cross-sectional area (over the bark) at breast height (1.3 metres above the ground) measured in metres squared (m2).
Stand Basal Area (SBA) is simply the cross-sectional area of all the trees at breast height per hectare of forest or plantation (m2/ha). Stand Basal Area can be used to estimate stand volume and is a useful measure of the degree of competition in the stand.Measuring Stand Basal Area.he most accurate method of assessing the basal area of a stand of trees is to measure all tree diameters in a plot, calculate the individual tree basal areas and then add them up. Computer spreadsheets are ideal for this.