Changes in soil chemistry after forest fires?

Al Stangenberger forags at nature.Berkeley.EDU
Mon Nov 24 11:58:10 EST 1997

: Nick Ananin wrote:

: > I presume there must be effects also on pH and also vegetation will not
: > intercept rainfall i.e. greater direct runoff.

Under some conditions fires can make a soil surface hydrophobic (presumably
some volatile organic compounds from combustion condense on the soil
surface).  This can affect infiltration.  Leonard DeBano of the US Forest
Service has done quite a bit of work on this in chaparral systems in 
southern California.

Al Stangenberger                      forags at            
Dept. of Env. Sci., Policy, & Mgt.    145 Mulford Hall # 3114
Univ. of California at Berkeley       Berkeley, CA  94720-3114
(510) 642-4424  FAX: (510) 643-5438   

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