Took me a while too. The left numbers “clay” are the gray lines that are flat (left to right), the right numbers “silt” go top-right to bottom-left and the bottom numbers “sand” go bottom-right to top left.
The intersection of any point is the sum of the 3 numbers and always equals 100. So for example, to get “silty clay loam” (middle right side). You follow the 30% for clay line, then the 60% for silt and finally 10% for sand. Those three equals 100%.
I kept doing what you were too and could not understand why I kept getting over 100% until someone else explained it to me.
I think I get it. The arrows on the labels show the direction to read, but aren’t actually by the percentage the represent. Sand percentages are on the left, silt on the bottom, and clay on the right?
This chart would benefit from color coding the lines and moving the labels and arrows to the values that you’re supposed to read.
Not quite. Clay is on the left. Its numbers go from 0 on the bottom left to 100% at the top point and are the flat ones that are horizontal. Silt is on the right and start 0% at the point and go to 100% in the bottom right. Its lines are the diagonal ones that go down and to the left. Finally sand starts with 0 on the bottom right and goes to 100% on the bottom left. Those lines go diagonally up and to the right.
Took me a while too. The left numbers “clay” are the gray lines that are flat (left to right), the right numbers “silt” go top-right to bottom-left and the bottom numbers “sand” go bottom-right to top left.
The intersection of any point is the sum of the 3 numbers and always equals 100. So for example, to get “silty clay loam” (middle right side). You follow the 30% for clay line, then the 60% for silt and finally 10% for sand. Those three equals 100%.
I kept doing what you were too and could not understand why I kept getting over 100% until someone else explained it to me.
I think I get it. The arrows on the labels show the direction to read, but aren’t actually by the percentage the represent. Sand percentages are on the left, silt on the bottom, and clay on the right?
This chart would benefit from color coding the lines and moving the labels and arrows to the values that you’re supposed to read.
Not quite. Clay is on the left. Its numbers go from 0 on the bottom left to 100% at the top point and are the flat ones that are horizontal. Silt is on the right and start 0% at the point and go to 100% in the bottom right. Its lines are the diagonal ones that go down and to the left. Finally sand starts with 0 on the bottom right and goes to 100% on the bottom left. Those lines go diagonally up and to the right.