نتایج جستجو برای: soil initial moisture and silt percent affect on soil erosion

تعداد نتایج: 18582098  

Journal: :تحقیقات آب و خاک ایران 0
علی واعظی دانشیار گروه خاک شناسی دانشکدة کشاورزی دانشگاه زنجان سعیده اکبری دانشجوی کارشناسی ارشد، گروه خاک شناسی دانشکدة کشاورزی دانشگاه زنجان محمد حسین محمدی دانشیار گروه خاک شناسی دانشکدة کشاورزی دانشگاه زنجان

rainfall erosion processes a long with the rainfall characteristics can be affected by soil properties. the study was conducted to investigate the susceptibility of the aggregates in different soil textures to the rainfall erosion processes. the experiment was done on thirty soil samples recognized in four soil textures with different replications as the completely randomized design. ninety box...

2017
Yusong Deng Chongfa Cai Dong Xia Shuwen Ding Jiazhou Chen

Collapsing gullies are among the most severe soil erosion problems in the tropical and subtropical areas of southern China. However, few studies have examined the relationship of soil particle size distribution (PSD) changes with land-use patterns in the alluvial fans of collapsing gullies. Recently, the fractal method has been applied to estimate soil structure and has proven to be an effectiv...

خوجه, نصیر,

     Complication of initiation process, expansion of gully erosion and unfamiliarity of the function of soil physicochemical characteristics, effective in this type of erosion, is one of the most important challenges to achieve functional approaches in order to prevent it. According to the importance of loss areas in Golestan Province which is embarrassed a wide area and has an important role ...

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,...

ژورنال: علوم آب و خاک 2017
جعفریان, زینب, حیدری, قدرت اله, سپهری, زهره, کاویان, عطااله,

Ash and coal produced from fire influence the soil and few studies about these effects are available. For this purpose, this study was performed to investigate the effect of ash and coal on hydrological, physical and chemical properties of soil in Charat rangeland that has a history of fire. Systematic-random sampling was implemented in two plant types Astragalus gossypinus and Artemisia aucher...

2017
Cristiano Zerbato Carlos Eduardo Angeli Furlani Antonio Tassio Santana Ormond Lucas Augusto da Silva Gírio Franciele Morlin Carneiro Rouverson Pereira da Silva

The successful establishment of agricultural crops depends on sowing quality, machinery performance, soil type and conditions, among other factors. This study evaluates the operational quality of mechanized peanut sowing in three soil types (sand, silt, and clay) with variable moisture contents. The experiment was conducted in three locations in the state of São Paulo, Brazil. The track-samplin...

Journal: :journal of agricultural science and technology 2010
s. s. hashemi m. baghernejad h. khademi

gypsiferous soils occur in xeric, ustic, and aridic moisture regimes. environmental conditions affect the mode of gypsum formation. gypsiferous soils in fars province, southern iran, are found in piedmont plains, flood plains, and alluvial plains. the objective of this work was to investigate the micromorphology of gypsum crystals formed under different soil moisture regimes. the results indica...

2015
Kozue Yuge Kunihiko Hamagami Mitsumasa Anan Kosuke Hamada

The objective of this study was to evaluate the effect of soil moisture condition and irrigation regime on the bioelectric potential of crops with different growth stages. The bioelectric potential of broccoli (Brassica oleracea var. italica) plants at the initial and mid-growth stages was measured under different soil moisture conditions and irrigation regimes using pot experiments. The result...

2011
X. Yang J. Leys S. Heidenreich

This study explores approaches for wind erosion risk assessment utilising available time-series Moderate Resolution Imaging Spectroradiometer (MODIS) and climate products. We present a simple index and a ruleset based approach to identify wind erosion risk areas across Australian using time-series of ground cover, soil moisture and wind speed. These approaches and data sets were implemented in ...

Plant diversity and vegetation distribution in an area are related to the soil physical and chemical properties. The knowledge of relationships between species diversityand soil parameteris essential for sustainable ecosystem management. This study was conducted to investigate the relationships between soil factors and species diversity indices in the protected rangelands of Lashgardar, Malayer...

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