نتایج جستجو برای: low salinity

تعداد نتایج: 1221539  

Journal: :Journal of Petroleum Science and Engineering 2021

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2013
F C Sterzelecki E Rodrigues E Fanta C A O Ribeiro

Eurihaline fish support waters with different salt concentration. However, numerous studies have shown that salinity can affect fish development. Thus, the effect of salinity change from 20 to 5 and 35 on survival, weight, length, gill chloride cell ultrastructure and gill Na+, K+ ATPase activity was evaluated in Centropomus parallelus following short-term (6, 24 and 96 hours) and long-term exp...

2016
Morgan W. Kelly Melissa B. DeBiasse Vidal A. Villela Hope L. Roberts Colleen F. Cecola

Trade-offs may influence both physiological and evolutionary responses to co-occurring stressors, but their effects on both plastic and adaptive responses to climate change are poorly understood. To test for genetic and physiological trade-offs incurred in tolerating multiple stressors, we hybridized two populations of the intertidal copepod Tigriopus californicus that were divergent for both h...

Journal: :Remote Sensing 2015
Xingwang Fan Yuanbo Liu Jinmei Tao Yongling Weng

Improper use of land resources may result in severe soil salinization. Timely monitoring and early warning of soil salinity is in urgent need for sustainable development. This paper addresses the possibility and potential of Advanced Land Imager (ALI) for mapping soil salinity. In situ field spectra and soil salinity data were collected in the Yellow River Delta, China. Statistical analysis dem...

2010
Neha T. Patel Ajit Gupta Amar Nath Pandey

BACKGROUND AND AIMS Mangroves of Western Gujarat (India) are subject to die-back. Salinity intolerance is one possible cause, especially in young plants. We therefore quantified the extent to which young plants of one widely occurring mangrove species (Ceriops tagal) tolerate high salt in terms of establishment, growth, water status, proline content and mineral accumulation. METHODOLOGY In a ...

2005
Lauren J. Chapman

We used regression analyses of water samples from 18 lakes, nine rivers, and one spring in Ethiopia to (a) test the hypothesis that water bodies of relatively higher salinity (K25 > 1000 hiS cm -1) have a different conductivity to salinity relationship than waters of lower salinity (K25 < 1000 taS cm-1), and (b) develop models to predict total cations and salinity from conductivity that can be ...

2017
Jun-Yu Luo Shuai Zhang Jun Peng Xiang-Zhen Zhu Li-Min Lv Chun-Yi Wang Chun-Hua Li Zhi-Guo Zhou Jin-Jie Cui

An increasing area of transgenic Bacillus thuringiensis (Bt) cotton is being planted in saline-alkaline soil in China. The Bt protein level in transgenic cotton plants and its control efficiency can be affected by abiotic stress, including high temperature, water deficiency and other factors. However, how soil salinity affects the expression of Bt protein, thus influencing the control efficienc...

Journal: :مدیریت آب و آبیاری 0
محمد فیضی استادیار مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان اصفهان، ایران سعید سعادت استادیار مؤسسۀ تحقیقات خاک و آب،کرج، ایران

in order to investigate the effects of saline waters on some soil characteristics, this experiment was conducted with three irrigation water salinity treatments contains 1.7-3.4, 8-9 and 11-12.5 dsm-1 (low, medium and high salinity) and two irrigation water managements with four replications in a wheat-fallow-sugar beet-safflower rotation. results show that in (1) irrigation management with low...

Journal: :محیط زیست طبیعی 0
علی آقارخ دانشجوی دکترای شیلات، دانشکده منابع طبیعی، دانشگاه تهران منصوره حسن زاده دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران رسول خسروی دانشجوی کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تهران

salinity is known as one of the most challenging problems in aquaculture and agriculture. this issue has posed more difficulties to the shoreline of the persian gulf. halophyte plants with their high potentials of absorbing salinity from soil and water are able to enhance the biopurification process in the environment. hydroponic is a biointegrated food production method which links recirculati...

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