in order to investigate the effects of different irrigation regimes and zeolit on the yield, yield componentsand relative leaf water content of sorghum, a field experiment was conducted in split plot in time andspace based on randomized complete block design with three replicates in research station of shahidbahonar university of kerman in 2011. irrigation regimes (100, 80, 60 and 40% of field ...

University of North Carolina at Chapel Hill. All rights reserved. For permissions, please e-mail: [email protected]. Social Forces 92(4) 1259–1283, June 2014 doi: 10.1093/sf/sot156 Advance Access publication on 28 February 2014 This research project received the support of the Luxembourg Fonds National de la Recherche (FNR), FNR/P11/05 & FNR/P11/05bis. The authors would also like to ...

Fire has been an important ecosystem process in the Sierra Nevada for thousands of years. Before the area was settled in the 1850s, fires were generally frequent throughout much of the range. The frequency and severity of these fires varied spatially and temporally depending upon climate, elevation, topography, vegetation, edaphic conditions, and human cultural practices. Current management str...