Title of article :
The impacts of serial land-use changes and biological invasions on soil water resources in California, USA
Author/Authors :
John D. Gerlach Jr، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
15
From page :
365
To page :
379
Abstract :
Land-use changes and biological invasions have converted the vegetation of Californiaʹs Central Valley and surrounding foothills from a mixture of perennial forbs and grasses and spring- and summer-flowering annuals to vegetation dominated by Eurasian spring-flowering annual grasses. The exotic annual grass communities are now rapidly being invaded by a Eurasian summer-flowering annual thistle that has caused losses of soil moisture resources on invaded sites of 15–25% of mean annual precipitation. A rough preliminary estimate indicates that the value of the lost water may range from 16 to 75 million dollars per year in the Sacramento River watershed alone.
Keywords :
Biological invasion , Centaurea solstitialis , Ecosystem effect , Land-use change , Soil water resources , Annual grasses , perennial grasses , Mediterranean-type climate
Journal title :
Journal of Arid Environments
Serial Year :
2003
Journal title :
Journal of Arid Environments
Record number :
763318
Link To Document :
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