Carbon, non-exchangeable hydrogen, and oxygen isotope ratios of cellulose of Avicennia germinans and Rkizophora mangle plants hydroponically grown under different salinities (0, 18, 45% sea water, but with irrigation waters having the same isotopic ratios) were measured to determine the possibility of using isotopic ratios of plant tissues as biological recorders of sea level rise. There was a ...

background and aims: sea buckthorn (hippophae rhamnoides l.) is a deciduous plant and has highly variable type and size, from small shrubs to medium-sized trees, traditionally growing in tibet and currently all over the world especially in europe and asia. this study aimed to overview some of therapeutic and non-therapeutic properties of sbt and its potential benefits and side effects in order ...

Coastal salt marshes are among Earth's most productive ecosystems and provide a number of ecosystem services, including interception of watershed-derived nitrogen (N) before it reaches nearshore oceans. Nitrogen pollution and climate change are two dominant drivers of global-change impacts on ecosystems, yet their interacting effects at the land-sea interface are poorly understood. We addressed...

The potential colonization by anchored plants (PCAP) and the potential areas for initial colonization of free floating plants were estimated during the early filling phase for the Yaciretá reservoir. In order to obtain the PCAP, the observed maximum depth of colonization of the anchored macrophytes before impoundment and the hypsographic curves were used. The species inhabiting the pre-impoundm...

The present work reveals the preliminary phytochemical screening and the study of antimicrobial activities of Costus speciosus (Koen) and Sea Qust. These are medicinal plants of considerable importance. Carbohydrates, Tannins, Steroids, Anthocyanates and Proteins were detected in both plants. Alkaloids, saponines, Anthraquinones were present in Costus speciosus but where absent in Sea Qust. The...

Sea ice has been suggested to be an important factor for dispersal of vascular plants in the Arctic. To assess its role for postglacial colonization in the North Atlantic region, we compiled data on the first Late Glacial to Holocene occurrence of vascular plant species in East Greenland, Iceland, the Faroe Islands and Svalbard. For each record, we reconstructed likely past dispersal events usi...

Elevated CO2 and nitrogen (N) addition directly affect plant productivity and the mechanisms that allow tidal marshes to maintain a constant elevation relative to sea level, but it remains unknown how these global change drivers modify marsh plant response to sea level rise. Here we manipulated factorial combinations of CO2 concentration (two levels), N availability (two levels) and relative se...

This paper summarizes a study of the economic and environmental performance of Reverse Osmosis (RO) desalination powered mainly with photovoltaics. It is based on up-to-date cost data for photovoltaic power plants and RO desalination plants. A case study is presented of a plant producing 6550 m water per day on the coast of the Red Sea in Saudi Arabia powered by 3-MWdc PV or HCPV capacities. We...