نتایج جستجو برای: in the universal soil loss equation usle

تعداد نتایج: 21291602  

2012
Sujata Biswas

Soil erosion is one of the most critical environmental hazards of recent times. A large area suffers from soil erosion, which in turn, reduces productivity. Methods such as the Universal Soil Loss Equation or Revised Universal Soil Loss Equation are widely used for the estimation of soil erosion from catchment areas. The paper deals with the estimation of soil erosion using Universal Soil Loss ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1390

apart from other aspects, desert is a natural environment and is one of the appealing terrestrial elements. putting its symbolic and fictional senses aside, the term “desert” bears mystic sense more than material sense. in addition to the worlds materialistic experiences, desert has attracted the attention of writers because it creates a kind of inner experience, which returns the individual in...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1389

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

Journal: :Geoteknik, struktur, manajemen konstruksi, sumber daya air, transportasi 2021

DAS merupakan daerah sebagai tangkapan hujan yang rentan terhadap erosi dapat mengakibatkan permaslaahan pada sedimentasi Waduk. Besarnya terus meningkat mempengaruhi kinerja waduk. Tujuan penelitian ini adalah menadapatkan nilai laju menggunakan metode USLE (Universal Soil Loss Equation) dan DAS, serta membuat peta kriteria sebaran Waduk Randuguting dari tahun 2010 hingga 2019 dibantu dengan s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1394

abstract previous studies on willingness to communicate (wtc) have shown the influence of many individual or situational factors on students’ tendency to engage in classroom communication, in which wtc has been viewed either at the trait-level or situational level. however, due to the complexity of the notion of willingness to communicate, the present study suggests that these two strands are ...

Journal: :Jurnal Teknologi dan Rekayasa Sumber Daya Air 2023

Waduk Krisak merupakan outlet dari sungai DAS yang terletak di Desa Singodutan, Kecamatan Selogiri, Kabupaten Wonogiri. dibangun pada tahun 1943 dengan rencana usia efektif waduk  50 tahun. telah beroperasi selama 79 tahun, namun perubahan tata guna lahan serta tingginya laju sedimentasi mengakibatkan berkurangnya daya tampung air dan waduk. Salah satu penyebab adalah adanya erosi. Erosi diseb...

2007
MANOJ K. JAIN UMESH C. KOTHYARI Manoj K. Jain

A Geographical Information System (GIS) based method is proposed and demonstrated for the identification of sediment source areas and the prediction of storm sediment yield from catchments. Data from the Nagwa and Karso catchments in Bihar (India) have been used. The Integrated Land and Water Information System (ILWIS) GIS package has been used for carrying out geographic analyses. An Earth Res...

Journal: :Land 2023

Soil erosion often leads to land degradation, agricultural production reduction, and environmental deterioration, which seriously restricts the sustainable development of regions. Clarifying driving factors soil is premise preventing erosion. Given lack current research on factors/force changes in different regions or under intensity grades, this paper pioneered use machine learning methods add...

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