Friday, 23 March 2018

The Effect of Industrialised Logging on Forest Water Yields

Logging affects water yields
'Immediately following logging, water yield is high because there are few live trees (they have been cut down) and water enters creeks and rivers easily. As the time since logging increases beyond about eight years, there is a sharp decrease in water yield as the rapidly regrowing forest uses lots of water and decreases water yield. After approximately 40 years, self - thinning (competition between trees that results in some trees dying) begins to occur which lowers stem density and increases water yield. But recovery of water yields to pre-logging levels takes centuries. 

Logging leaves a legacy that our grandchildren will still encounter.'



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