نتایج جستجو برای: waterlogged

تعداد نتایج: 578  

Adel Reyhanitabar Fereshteh Valizadehfard Nosratollah Najafi, Shahin Oustan

In order to investigate the effect of Cd and Zn on uptake, concentration and the translocation factor of the Cd and Zn in the rice plant, a factorial experiment was conducted with four factors including two rice cultivars of Vandana and Hashemi, two waterlogged and non-waterlogged conditions and three levels of Zn and Cd (0, 5 and 10 mg kg-1 soil). The experiment was carried out in a randomized...

اسپندیار, مهروز , رقیمی, مصطفی ,

The study of morphological and mineralogical changes within a natural acid saline seep affected landscape revealed that seasonal differences in surface mineralogy, reflecting the operation of sulfidization and oxidative sulfide weathering processes. During the wet season, the surface and near surface of the waterlogged seep and marsh areas is dominated by black sulfidic materials (pyrite) and m...

2010
Limin Ma Jianfu Zhao

The Water-Fluctuation-Zone (WFZ) of the Three Gorges Reservoir (TGR) has a special combination of aquatic and terrestrial ecological systems that are exposed to human activity. In this work, three kinds of soil were sampled along the Yangzi River in the TGR-WFZ. Our study focused on phosphorus (P) sorption characteristics and the change in inorganic P fractions for soils in alternately waterlog...

2017
Yanjun Zhang Xiangqiang Kong Jianlong Dai Zhen Luo Zhenhuai Li Hequan Lu Shizhen Xu Wei Tang Dongmei Zhang Weijiang Li Chengsong Xin Hezhong Dong

Cotton is sensitive to waterlogging stress, which usually results in stunted growth and yield loss. To date, the molecular mechanisms underlying the responses to waterlogging in cotton remain elusive. Cotton was grown in a rain-shelter and subjected to 0 (control)-, 10-, 15- and 20-d waterlogging at flowering stage. The fourth-leaves on the main-stem from the top were sampled and immediately fr...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Zarah Walsh Emma-Rose Janeček James T Hodgkinson Julia Sedlmair Alexandros Koutsioubas David R Spring Martin Welch Carol J Hirschmugl Chris Toprakcioglu Jonathan R Nitschke Mark Jones Oren A Scherman

The preservation of our cultural heritage is of great importance to future generations. Despite this, significant problems have arisen with the conservation of waterlogged wooden artifacts. Three major issues facing conservators are structural instability on drying, biological degradation, and chemical degradation on account of Fe(3+)-catalyzed production of sulfuric and oxalic acid in the wate...

2011
Dubravko Culibrk Predrag Lugonja Vladan Minic Vladimir S. Crnojevic

The paper presents a method for automatic detection and monitoring of small waterlogged areas in farmland, using multispectral satellite images and neural network classifiers. In the waterlogged areas, excess water significantly damages or completely destroys the plants, thus reducing the average crop yield. Automatic detection of (waterlogged) crops damaged by rising underground water is an im...

2017
Emily McHale Calin C. Steindal Hartmut Kutzke Tore Benneche Stephen E. Harding

Waterlogged archaeological wood is often in need of consolidation prior to drying to prevent shrinkage and cracking of the object. There is a need for new greener materials (than for example polyethylene glycol) and methods for consolidation to be developed. The use of wood-based components could provide good interaction between the consolidant and the remaining wood structure and would also su...

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