1. Soil microstructure in soils of the Colorado plateau: the role of the cyanobacterium Microcoleus vaginatus;Belnap;Great Basin Nat.,1993
2. Disturbance of biological soil crusts: impacts on potential wind erodibility of sandy desert soils in southern Utah;Belnap;Land Degrad. Dev.,1997
3. Surface disturbance of cryptobiotic soil crusts: nitrogenase activity, chlorophyll content and chlorophyll degradation;Belnap;Arid Soil Res. Rehabil.,1994
4. Pedology;Birkeland,1974
5. Bulk density;Blake,1986