I often dig into the soil where ever I am able to, just to see what I can learn... therefore it is not surprising that another thread, got me thinking about ways in which we could 'visulize' the thatch in our turf, by comparison with the 'floor' of a pine forest. What is interesting about the 'organic' decay in an undisturbed environment, is the sequential layers one finds, as you dig into the rootzones... On the surface of the forest floor you have lots of fresh pine needles covering the ground in a carpetlike fashion with very little other growth becoming a problem. Underneath the surface there is a layer of blackened rotted needles that hold a great deal of moisture. Dig a little deeper and you can 'feel' the consistancy of OM mixed with the top layer of soil... with worms and everything else living there in the 'rhizosphere', or root zone. How does that compare(or contrast) to the layer of thatch in the turf?