EFFECTIVENESS OF GRANULAR POLYACRYLAMIDE TO REDUCE SOIL EROSION DURING CONSECUTIVE RAINSTORMS IN A CALCIC REGOSOL EXPOSED TO DIFFERENT FIRE CONDITIONS
Marcos Lado, Assaf Inbar, Marcelo Sternberg, Meni Ben-Hur
LAND DEGRADATION & DEVELOPMENT | WILEY-BLACKWELL | Published : 2016
Fire severity varies widely among and within wildfires. The objective of this work was to test the effectiveness of granular polyacrylamide (PAM) to reduce erosion in a Calcic Regosol exposed to different fire conditions. Three treatments were selected representing disturbances that coexist after a wildfire: unburned, low-moderate severity direct fire, and prolonged heating under moderate temperature [heated (HT)]. Granular PAM was spread on the surface of disturbed samples at two rates: (i) 0 (control) and (ii) 50 kg ha−1. Additional application rates of 25 and 100 kg ha−1 were tested in HT. Three 80-mm rainstorms were applied with an intensity of 47 mm h−1, separated by drying periods. PAM..View full abstract
Awarded by Xunta de Galicia
This work was partly funded by Xunta de Galicia under the project 07MRU007103PR. Assaf Inbar is grateful to the Smoller-Winnikow Fund for Environmental Research for supporting his research. The authors want to thank Dr. Haim Tenaw and Mrs. Lea Leib, from A.R.O., for their technical assistance and Mr. Aviram Zuk from JNF-KKL for logistical fieldwork assistance and site selection. The authors would like to thank the anonymous reviewers for their valuable comments and suggestions that helped improve this manuscript.