نتایج جستجو برای: lake urmia basin

تعداد نتایج: 97887  

تقی لو, علی اکبر, ریاحی, وحید, عزیزپور, فرهاد, کریمی, خدیجه ,

Human settlements as local -spatial systems are subject to continuous dynamism and transformation. In the meantime, rural settlements including; in Iran, as the most important establishment of population and activity, are exposed to the deepest environmental, ecological, social, economic and cultural changes. It is evident that in these developments, a variety of different and different forms o...

2004
S. Y. Phoon A. Y. Shamseldin

Introduction The Nile River the longest river in the world has been serving as a source of life to the people living in its basin for centuries. Throughout the course of history, the Nile has supported livelihoods and played a considerable role in enriching diverse cultures within its basin. Hence, the Nile has been the centre of attention of explorers, tourists, researchers and historians for ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Simon J Armitage Charlie S Bristow Nick A Drake

From the deglacial period to the mid-Holocene, North Africa was characterized by much wetter conditions than today. The broad timing of this period, termed the African Humid Period, is well known. However, the rapidity of the onset and termination of the African Humid Period are contested, with strong evidence for both abrupt and gradual change. We use optically stimulated luminescence dating o...

1999
Agata Kowalewska Andrew S. Cohen

This study summarizes the results of micropaleontological, sedimentological, and isotope geochemical analyses of cuttings from five deep wells drilled in the Great Salt Lake (Utah, USA). Spanning the last 5.0 million yrs, our environmental history of the Great Salt Lake distinguishes four intervals based on paleobiological and sedimentological characteristics, using a previously developed tephr...

2013
Michael M. McGlue Andrew S. Cohen Geoffrey S. Ellis Andrew L. Kowler

Depositional models of ancient lakes in thin-skinned retroarc foreland basins rarely benefit from appropriate Quaternary analogues. To address this, we present new stratigraphic, sedimentological and geochemical analyses of four radiocarbon-dated sediment cores from the Pozuelos Basin (PB; northwest Argentina) that capture the evolution of this low-accommodation Puna basin over the past ca. 43 ...

Journal: :Environmental Earth Sciences 2021

Farmers have to make decisions adapt climate change and reduce environmental vulnerability. If these are made incorrectly, irreversible changes can take place that threaten environmental, social economic sustainability of agriculture. This study applies a land use model guide regional agricultural planning, with focus on the case south basin Urmia Lake, NW Iran, using data from Landsat images, ...

Journal: :Environmental pollution 2012
James B Shanley Ann T Chalmers

From 2000 to 2004, we sampled for total mercury (THg) and methylmercury (MeHg) in inlet streams to Lake Champlain, targeting high flow periods to capture increases in THg and MeHg concentrations with increasing flow. We used these data to model stream THg and MeHg fluxes for Water Years 2001 through 2009. In this mountainous forested basin with a high watershed-to-lake area ratio of 18, fluvial...

Sustainable development of agriculture is facing with several challenges such as climate change resulting change in the pattern of weather parameters as well as crop water requirements. In this research, due to the important role of agricultural activities whitin Urmia Lake Basin in the production of various agricultural products such as wheat, the possibility of supplying the plant's water req...

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