The forests in north of Iran with abundant biodiversity include as one of the rarest stores of bi... more The forests in north of Iran with abundant biodiversity include as one of the rarest stores of biological are Natural ecological and economic perspective. Whereas, pests and plant diseases are serious threat to biodiversity, human health and forest parks, the present study was performed in May and June 2012 in completely randomized design with four replications and three treatments soil compaction consist of no compaction, low and hard compaction. In each of the treatments, additional providing soil samples from a depth of 0-10 centimeters for each treatment in order to measure some physical characteristics of soil with routine laboratory, number of larvae and nymphs for Lymantridispar and Bradyporuslatipeswere counted in three meters height of five tree species such as Quercuscastaneifolia, Zelkovacarpinifolia, ParrotiaPersica, Cupressussempervirens and Pinuseldarica.The results of comparing three treatments on soil compaction indicated a significant for bulk density, soil PH, perc...
In order to evaluate the effect of drought stress on Celtis caucasica Willd seedlings, the resear... more In order to evaluate the effect of drought stress on Celtis caucasica Willd seedlings, the research was conducted based on completely randomized design on summer season. On the watering regimes (2th and 4th day after drought), the morphological-related parameters were measured. Traits were measured including: height, diameter, leaf number, leaf area, shoot and root length, freshly and number of root, fresh and dry weight of roots, stem and leaf and ratios of root to shoot, leaf to shoot, leaf area, specific leaf area and leaf weight. Results indicated those terms of height seedling after fortieth day significant at the 5% level and 1% level at the end of growth period under the drought conditions. Average height, number of leaves, leaf area in the second and third months, shoot dry weight, shoot length and leaf area ratio in the drought treatment showed a of 5% significant and the number of leaves was significant at thirtieth and fortieth day by stress condition. Since the fiftieth ...
Recreation planning is not only as a tools for enhancing of socio-economy levels of the people bu... more Recreation planning is not only as a tools for enhancing of socio-economy levels of the people but because of its conservational functions can provide a dynamic conditions for conservation of natural resources. With respect to this point that the first step in recreation planning like planning for any activity is the evaluation of land potential for that activity. The aim of this study was to evaluate the potential of ecotourism of Babolrood watershed in Mazandaran province by using of analytical hierarchy process (AHP) and geographical information system (GIS). For this regard, firstly the most important effective criteria and sub-criteria in evaluating of the potential for recreation in the study area were determined. After that, by using of Delphi method some questionnaires were provided and between different experts were distributed. The weight of criteria in each questionnaire was calculated and then the averaged weights were estimated. With applying of AHP method and Expert Ch...
The forests in north of Iran with abundant biodiversity include as one of the rarest stores of bi... more The forests in north of Iran with abundant biodiversity include as one of the rarest stores of biological are Natural ecological and economic perspective. Whereas, pests and plant diseases are serious threat to biodiversity, human health and forest parks, the present study was performed in May and June 2012 in completely randomized design with four replications and three treatments soil compaction consist of no compaction, low and hard compaction. In each of the treatments, additional providing soil samples from a depth of 0-10 centimeters for each treatment in order to measure some physical characteristics of soil with routine laboratory, number of larvae and nymphs for Lymantridispar and Bradyporuslatipeswere counted in three meters height of five tree species such as Quercuscastaneifolia, Zelkovacarpinifolia, ParrotiaPersica, Cupressussempervirens and Pinuseldarica.The results of comparing three treatments on soil compaction indicated a significant for bulk density, soil PH, perc...
In order to evaluate the effect of drought stress on Celtis caucasica Willd seedlings, the resear... more In order to evaluate the effect of drought stress on Celtis caucasica Willd seedlings, the research was conducted based on completely randomized design on summer season. On the watering regimes (2th and 4th day after drought), the morphological-related parameters were measured. Traits were measured including: height, diameter, leaf number, leaf area, shoot and root length, freshly and number of root, fresh and dry weight of roots, stem and leaf and ratios of root to shoot, leaf to shoot, leaf area, specific leaf area and leaf weight. Results indicated those terms of height seedling after fortieth day significant at the 5% level and 1% level at the end of growth period under the drought conditions. Average height, number of leaves, leaf area in the second and third months, shoot dry weight, shoot length and leaf area ratio in the drought treatment showed a of 5% significant and the number of leaves was significant at thirtieth and fortieth day by stress condition. Since the fiftieth ...
Recreation planning is not only as a tools for enhancing of socio-economy levels of the people bu... more Recreation planning is not only as a tools for enhancing of socio-economy levels of the people but because of its conservational functions can provide a dynamic conditions for conservation of natural resources. With respect to this point that the first step in recreation planning like planning for any activity is the evaluation of land potential for that activity. The aim of this study was to evaluate the potential of ecotourism of Babolrood watershed in Mazandaran province by using of analytical hierarchy process (AHP) and geographical information system (GIS). For this regard, firstly the most important effective criteria and sub-criteria in evaluating of the potential for recreation in the study area were determined. After that, by using of Delphi method some questionnaires were provided and between different experts were distributed. The weight of criteria in each questionnaire was calculated and then the averaged weights were estimated. With applying of AHP method and Expert Ch...
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Papers by Hamid Jalilvand