نتایج جستجو برای: nine factors including slope

تعداد نتایج: 2090421  

Many factors including climate, type of rootstock, soil properties, geological factors, plant nutrition and irrigation affect the quantity and quality of orange fruit. In this study, the relations between citrus orchards conditions, their soil properties and leaf elements concentration and fruit quality were evaluated. The experiment was conducted as a randomized complete block design and soil,...

Journal: :پژوهش های جغرافیای طبیعی 0
داود مختاری

in recent years there has been studies concerning the investigation of macro-scale geomorphic proxies of quaternary climatic changes in the study area. without detail analysis of slope geomorphic features, there can be little progress on expanding the knowledge of past slope development in the northwestern iran high mountain environments. consequently, the information pertaining to these quater...

Journal: :مرتع و آبخیزداری 0
داود طالب پوراصل مدرس گروه جغرافیای طبیعی دانشگاه کردستان، ایران سعید خضری استادیاردانشکده منابع طبیعی،دانشگاه کردستان، ایران

the mahabad river watershed has been exposed to severe erosion as a result of landuse change. the aim of this study is to quantify the amount of sediment yield and the relationship between land use change and slope. different sources such as geologic and topographic maps, satellite images, hydrometric as well as meteorological data were used to extract and gather the information needed for this...

Journal: Evidence Based Care 2019

Background: Menopause age is a determinant of health status and the risks for future diseases. Aim: The current study aimed to determine the average age of menopause among Iranian women in a meta-analysis. Method: This systematic review and meta-analysis was performed in August 2017. The articles were searched in Persian databases, including Iran Medex, SID, and Magiran, as well as internationa...

Journal: :تولید گیاهان زراعی 0
حسین کاظمی استادیار گروه زراعت دانشگاه علوم کشاورزی و منابع طبیعی گرگان

this research was conducted to zoning of gorgan agricultural lands for hulless barley cropping using evaluation of some environmental factors base on boolean logic and by geographic information system. for this purpose, agro-ecological requirements of hulless barley firstly, identified according to scientific resources. rating and thematic requirement maps were then provided. studied environmen...

Journal: :Biologia 2021

Abstract Namaki-Khameneh and Disney describe nine new species one genus Iranphora sharafkhaneensis gen. n., sp. Megaselia caveonectergata M. distincta fereagarici flavucrurus paluventer polysetosis Phalacrotophora flavidus Phora iranensis n. from Iran. As a result, this study increased the total number of reported phorids genera Iran to 12 78, respectively.

The present study was performed to identify diversity indices of herb layer functional groups and its relation to physiographical factors in central Zagros forest, Lorestan. For this purpose, sampling of herbaceous plants was conducted randomly in plots of 2×2 m (n=50) in site. All plants were classified to functional groups including forbs, graminoids and legumes, also Raunkiaerchr('39')s life...

Journal: :ISPRS Int. J. Geo-Information 2017
Fei Wang Peihua Xu Changming Wang Ning Wang Nan Jiang

The Longzi River Basin in Tibet is located along the edge of the Himalaya Mountains and is characterized by complex geological conditions and numerous landslides. To evaluate the susceptibility of landslide disasters in this area, eight basic factors were analyzed comprehensively in order to obtain a final susceptibility map. The eight factors are the slope angle, slope aspect, plan curvature, ...

دریکوند , رقیه, ذوالفقاری, رقیه,

Cypress (Cupressus sempervirens L. var. horizontalis) is one of the native conifers in Iran. It is found in Tange Soulak Forest Reserve of Kohgiluyeh and Boyer-Ahmad Province, Iran. An experiment in a completely randomized design with factorial 4×2×2 was performed to assess the factors affecting Cupressus sempervirens seed germination. Dieback, slope, and altitude were analyzed at four, two, an...

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