نتایج جستجو برای: vegetation cover 0119

تعداد نتایج: 148663  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1388

this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...

Journal: :مرتع و آبخیزداری 0
محسن نقیلو کارشناس دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد جعفری استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران محمد طهمورث 3 کارشناس ارشد آبخیزداری، ایران اصغر کهندل استادیار جهاد دانشگاهی واحد تهران، ایران فریناز همدانیان 5 فارغ التحصیل کارشناس ارشد مرتعداری، ایران

the purpose of this research was to investigate the relationship between vegetation cover and soil characteristics in order to determine the most important soil factors which affect on quantitative variations and types of vegetation cover in the study area. the study area is located in west of tehran province and southeast of hashtgerd, next to najm-abad village. after field studies, the index ...

Journal: :مرتع و آبخیزداری 0
فرهاد آقاجانلو عضو هیأت علمی، مرکز تحقیقات کشاورزی و منابع طبیعی زنجان، ایران مرتضی اکبرزاده استادیار موسسه تحقیقات جنگل ها و مراتع کشور، ایران احمد موسوی عضو هیأت علمی، مرکز تحقیقات کشاورزی و منابع طبیعی زنجان، ایران

the effect of exclosure on the changes of vegetation cover of rangelands of ahmad-abad region located in zanjan province has been studied during 2002 to 2006. three transects comprises of 60 fixed quadrate were establish within exclosure area and outside as well. the changes of vegetation cover were studied to made comparison between the changes of manipulated factors and soil elements using t ...

باغستانی , ناصر , ثواقبی, محمد حسین , رحیمیان , محمد حسن , عبداللهی, جلال ,

The present study discusses a method used to produce updated information about vegetation cover in arid and semi-arid zones, using RS data and GIS technique. In this method, Landsat ETM+ data in 2002 was collected in an area of about 60000 ha in Nodoushan basin, Yazd, Iran. To collect the necessary ground data, 50 sites of different vegetation types were selected and the percentage of vegetatio...

Journal: :pollution 2015
somayyeh jabbari seyed jamaledin khajedin reza jafari saeed soltani

to determine the suitable indices for vegetation cover and production assessment based on the remote sensing data, simultaneous digital data with field data belonging to the spring rangeland of the semirom-isfahan province were analyzed. during two years of monitoring the annual, grass, forb, and shrub vegetation cover and the total production data from 86 were collected. the global positioning...

Journal: Pollution 2015

To determine the suitable indices for vegetation cover and production assessment based on the remote sensing data, simultaneous digital data with field data belonging to the spring rangeland of the Semirom-Isfahan province were analyzed. During two years of monitoring the annual, grass, forb, and shrub vegetation cover and the total production data from 86 were collected. The Global Positioning...

Journal: :International journal of oncology 2011
Tadashi Ashizawa Haruo Miyata Hidee Ishii Chie Oshita Kenji Matsuno Yoshiaki Masuda Toshio Furuya Tadashi Okawara Masami Otsuka Naohisa Ogo Akira Asai Yasuto Akiyama

Signal transducer and activator of transcription (STAT)3, a member of a family of DNA-binding molecules mediating numerous physiological and oncogenic signaling pathways, is a novel target in cancer cells which show high phosphorylation of STAT3. Recently, we identified a novel small-molecule inhibitor of STAT3 dimerization, STX-0119, as a cancer therapeutic. We investigated the mechanisms resp...

To determine the suitable indices for vegetation cover and production assessment based on the remote sensing data, simultaneous digital data with field data belonging to the spring rangeland of the Semirom-Isfahan province were analyzed. During two years of monitoring the annual, grass, forb, and shrub vegetation cover and the total production data from 86 were collected. The Global Positioning...

ژورنال: علوم آب و خاک 2008
باغستانی , ناصر , ثواقبی, محمد حسین , رحیمیان , محمد حسن , عبداللهی, جلال ,

The present study discusses a method used to produce updated information about vegetation cover in arid and semi-arid zones, using RS data and GIS technique. In this method, Landsat ETM+ data in 2002 was collected in an area of about 60000 ha in Nodoushan basin, Yazd, Iran. To collect the necessary ground data, 50 sites of different vegetation types were selected and the percentage of vegetatio...

ژورنال: :مرتع و آبخیزداری 2012
فاضل امیری حسن یگانه

assessment process of vegetation cover by remote-sensing images should be based on understanding of the vegetation indices. vegetation indices are widely used for assessing and monitoring ecological variables such as vegetation cover, above-ground biomass and leaf area index. the aim of the present research was to study of the aster data capabilities to estimate the vegetation cover percentage ...

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