نتایج جستجو برای: taleghan
تعداد نتایج: 118 فیلتر نتایج به سال:
For an optimum use of natural resources in the sustainable development trend, there is a need to identify ecological resources in the shortest period of time and minimum possible cost. In this article, we aimed Management ecosystem by Assessment of plant covers changes at Taleghan Township in a twenty year period. Percentage of landscape and number of patch were among the metrics that were calc...
Nowadays watershed catchments have been introduced as the main point of permanent development in many management discussions. Watershed catchments ecological power assessment and their rankings according to different Ethological criteria is one of the important factors in watershed catchments planning and management. Taxonomy method is one of the most comprehensive planned systems for assessing...
Following an outbreak of fascioliasis in Anzali Harbor in 1988, 452 blood samples were collected using a multistage sampling method for hematological and serological studies. After determination of eosinophilia in the samples, antifasciolia antibodies in the sera were also determined using enzyme linked immuno sorbant assay (ELISA) and counter-current immuno electrophoresis (CCIE). 64.2% ...
In this study, the prediction of Thymus kotschyanus habitat distribution was investigated using two methods of generalized additive regression model (GAM) and Boosted regression trees (BRT) in central part of Taleghan rangelands. Data on vegetation and habitat factors such as topography, climate, geology and soil were collected. For data preparation, samples were taken from the field to record ...
Flood zonation mapping is one of the priorities for the soil and water management, which Remote Sensing (RS) capabilities are very applicable to this issue. The main objective of this research was study of accuracy of the Object oriented and Pixel based methods for flood zonation mapping in the Taleghan River basin. Therefore, the Sentinel 2A satellite image of the study area classified using s...
a primary uses from iran rangelands is livestock grazing and the major livestock is sheep. sheep grazing on the slopes above 60%, because of using a lot of energy for grazing operation, caused to not only reduces livestock performance but also increases the risk of erosion. sheep grazing in an area where more than five kilometers away from water sources, due to the prolongation of the march rou...
natural landscape alternation is a problem that has been under debate for a long time. landutilization techniques like agriculture, forest and rangelands, residential and urban are amonginfluential criteria affecting erosion severity and sediment yield in a given region. in this respect,land management is a promising option to mitigate it. thus, acquaintance with quantitative soilerosion owing ...
estimation of the amount of soil loss measurement of field indicators is a low-cost method, is easy to learn and can be simply applied. in order to measure and make assessment of soil loss amount by field indicators method in shahrak watershed, first map of the work units was prepared and then, measurements of the relevant field indicators were carried out within these units. then, epm model wa...
regarding the importance of natural resources in preserving natural ecosystem and human being survival, protecting these resources and preventing their demolition will be necessary. taleghan lake, alborz, is studied o determine the protective value and measuring the willingness of people. using the ahp approach, this study is different by using and non-using value of the lake. results from lagi...
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