To determine the pH of the soil (pH) is measured by means of LDD, 2553 the ratio of soil: water = 1: 1 (w / w) soil weighing 20 grams, put in a plastic beaker. 20 ml of distilled water, stir well with a glass rod the substance is. More frequently in the first 30 minutes, then set aside for 30 minutes and then leave it for another 30 minutes and then measure the pH of the soil in the clear water with pH meter (before the pH of the soil solution. PH meter must be prepared to be ready to work by measuring Standard buffer solution 7.0 and 10.0 adjust the pH values were 7.0 and 10.0),
data analysis, lichens and their relationship to environmental factors each month. The method used to analyze the results of PCA (Principal component analysis).
การแปล กรุณารอสักครู่..