While the water content in themud material is continuously supplemented in a trace amount by the water source from the drip pipe.

So basically if we think of buckets and pipes, that's a very thin pipe connecting the bucket for A and B, B so we drip from A to B, C then we have this very fat pipe connecting B and C.

The results of comparison test of the water saving efficiency of drip irrigation afforestation in the waste mountain at Kuerle area show: drip irrigation saves water by 66.6% than pipe irrigation.