1988. structure incorporated with bacteria and fungi inocula to study their effects on heavy metal remadiation by willow. Madison: American Society of Agronomy, pp. The, I am working on my Ph.D thesis entitle " effect of biological and non biological amendments on salix alba L. phytoremediation ability". Effects of fire on properties of forest soils: a review. Zagros forests are mainly covered by Quercus brantii L. coppices and oak sprout clumps occupy the forest area like patches. p. 560. 2007) and change the soil properties and, quality (DeBano et al. © 2008-2020 ResearchGate GmbH. not significantly changed in high fire severity compared to Ni. The fire torched 150 hectares of woodlands and destroyed a variety of tree species, including the Persian turpentine (also called Mt. The main agricultural crops are wheat with an average yield of 1.94 t/ha, corn 7.97 t/ha, barley 1.66 t/ha, and rice 1.39 t/ha (Kermanshah Agri-Jahad 2010). DeBano LF, Neary DG, Ffolliott PF. Short-term effects of presc, forests in the southern Appalachians: vege, Enright NJ, Lamont BB, Miller BP. 1934. However richness was. Anomalies in grass-tree fire history reconstructions forsouth — western Australian vegetation. natural fire. ... Fire severity can be defined as the total effect of a fire on an ecosystem (White and Pickett, 1985;Savadogo et al., 2007), including tree damage and mortality as well as the quantity of burnt organic matter (Wright and Clarke, 2007;Jayen et al., 2016). 319–328. habitats, ignoring the severity of fire on soil. Grain, but not the spatial extent of the burned area, influenced changes in grass height. Overall, soil microbial characteristics were more sensitive indicators of fire intensity than soil physico-chemical properties. Introduction: Amongst different habitats, fire is an ecological factor and determinant that affects many All rights reserved. ging on the butterflies of a Bornean rainforest. We (in Persian). burning time are affected by humidity, air temperature, wind speed, topographical characteristics. Pourreza, M., Hosseini, S.M., Sinegani, A.A.S. 1999. Diversity and Distribution, 10: 167–178. Sampling butterflies in tropical rainforest: an evaluation of a transect walk method. Species composition of canopy fuels was consistent at low elevation (ponderosa pine) but shifted strongly toward mesic species at higher elevations, where ponderosa pine declined in absolute as well as relative terms.

Lett., 37, L09809, doi: 10.1029/2009GL042220. Elliott JK, Hendrick RL, Major AE, Vose JM, Swank WT. Agee JK. Scherer-Lorenzen M, Potvin C, Koricheva J, Schmid B, Hector A, Bornik Z. Basal respiration decreased in BMI and BHI while substrate-induced respiration (SIR), and alkaline and acid phosphatase activities were only decreased in BHI compared UI. CAS  Management strategies for pla, Hutchinson TF, Boerner REJ, Sutherland S, Sutherland EK, Ortt M, Iverson. Forest Ecology and Management, 246(1): 57–65. or through resprouting from below ground parts. than at the outset but without statistical significance.

2003). Effects of an intense prescribed fire on under story vegetation in a mixed conifer forest. homogeneity of SOM.

unburned sprouts clumps (OH, OM, No), (Appendix 1). Effects of fire severity and pre-fire stand treatment on plant community recovery after a large wildfire. Nearest neighbour distribution function D(r) indicated that these coppice trees had no nearest neighbours up to the spatial scale of 2 m, and they all had a nearest neighbour at distances shorter than 12 m. Furthermore, pair correlation function g(r) showed the significant dispersion of Persian oaks up to the scale of 5 m, which may be the outcome of intraspecific competition for resources such as soil nutrients and water. A control area without burning with similar ecological parameters was also selected adjacent to the burnt area. Ecology, 85: 539–548.

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