Heenan Doherty wrote:Looking at those soil conditions in the photo I wonder how effective that 'trap' would be at mosquito production apart from aiding the saturation of soils in the vacinity of the trench whilst draining the landscape above it...These are the effects of some earthworks of this kind.
Xisca Nicolas wrote:
My idea of keylines is that it is not meant just to stop water that goes down,
It is not about slowing down but directing...
Your system looks as if the wettest place was going to get even wetter, and depleate from humidity the places that are a little higher.
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