نتایج جستجو برای: 10 d

تعداد نتایج: 1508268  

2015
Chen Lin Ronghua Ma Zhihu Su Qing Zhu

Taihu Lake in China has suffered from severe eutrophication over the past 20 years which is partly due to significant land use/cover change (LUCC). There is an increasing need to detect the critical watershed region that significantly affects lake water degradation, which has great significance for environmental protection. However, previous studies have obtained conflicting results because of ...

Journal: :Water research 2007
Guofeng Wu Jan de Leeuw Andrew K Skidmore Herbert H T Prins Yaolin Liu

Remotely sensed assessment of dredging impacts on water turbidity is straightforward when turbidity plumes show up in clear water. However, it is more complicated in turbid waters as the spatial or temporal changes in turbidity might be of natural origin. The plausibility of attributing turbidity patterns to dredging activities would be greatly enhanced when demonstrating association between dr...

Journal: :Environmental geochemistry and health 2009
Fengyan Liu Jiachun Ge Xin Hu Teng Fei Yuehua Li Yuan Jiang Zhiqiang Xu Shuyan Ding John P Giesy Jianlin Pan

Concentrations of metals were determined in four species of anchovy (Coilia sp.) from the Yangtze River, Taihu Lake, and Hongze Lake in Jiangsu Province, China. Concentrations of Cr in anchovy fish muscle ranged from 2.6 × 10(-2) to 5.0 mg/kg ww, and Coilia nasus taihuensis in Jiaoshan, Taihu Lake contained the highest concentrations of Cr, which was almost 111-fold higher than the mean value a...

2016
Enrique H Bucher Ariel F Stein

Starting in 2006, a new source of intense salt dust storms developed in Mar Chiquita (Córdoba, Argentina), the largest saline lake in South America. Storms originate from vast mudflats left by a 30-year expansion-retreat cycle of the lake due to changes in the regional rainfall regime. The annual frequency of salt dust storms correlated with the size of the salt mudflats. Events were restricted...

2013
Xing Wang Yu Wang Lusan Liu Jianmin Shu Yanzhong Zhu Juan Zhou

Eight typical sampling sites were chosen to investigate the phytoplankton community structure and to assess the eutrophication degree of Baiyangdian Lake in 2009. Our results showed that among the total 133 species identified, Cyanophyta, Chlorophyta, and Bacillariophyta dominated the phytoplankton community. In spring, Chlorophyta and Bacillariophyta were the dominant phyla, and the dominant s...

2002
CHONDRITES E. S. Bullock M. Gounelle M. M. Grady

2012
Haodong Wu Ping Huang Junsan Wang

In China, with the rapid urbanization and industrialization, and highly accelerated economic development have resulted in degradation of water resource. The water quality deterioration usual result from eutrophication in most cases, so how to dispose this type pollution water higher efficiently is an urgent task. Hower, different with traditional technology, constructed wetlands are effective t...

Journal: :journal of basic research in medical sciences 0
masoud behzadifar tehran hamidreza dehghan yazd kourosh saki teharn kourosh sayehmiri ilam meysam behzadifar lorestan ali akbari sari tehran

introduction: major depressive disorder is a common mental condition associated with substantial morbidity and economic burden. approved by the fda in september 2013 for treatment of episodes of major depressive disorder, vortioxetine is one of the newer options available in this important area of therapeutics. materials and methods: a comprehensive literature search (pubmed, the cochrane libra...

2010
John R. O ' Connor

While the Otsego Lake watershed supports a large diversity of fish species, the list present in the watershed has been continuously updated since the original publication by McWatters (1980,1983). New species have been documented by Hayes and Foster (1989), Foster (1989), Foster and ColIura (1990), and Brooking ( 1991) and the extinction of a species has also been reported by Lehman el al., (19...

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