نتایج جستجو برای: wetland protection

تعداد نتایج: 189592  

Journal: :ecopersia 0
seyed parviz jalili kamju assistant professor in economics, humane sciences faculty, university of ayatollah borujerdi (r.a), borujerd, iran rahman khoshakhlagh professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran yashar shirinkhah m.a. in management, management faculty, islamic azad university, kish international branch, kish, iran saeed samadi associate professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran gholam hossein kiani assistant professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran

wetlands as a situ for the growth of native plants, as a habitat for certain species of fish and aquatic birds, and because of their potential economic, cultural and recreational services, are valuable heritage so their protection and conservation is very essential. mostly due to the absence of wetlands services’ valuation, lack of special regulations, and lack of guarantee for these properties...

Understanding ecosystems and their zonation based on their characteristics and sensitivities is an essential step in protecting natural resources and the sustainability of their habitats. The Mediterranean Wetland Habitat Classification System (MEDWET) is used to identify Bakhtegan wetland, Fars Province, Iran, by hierarchical classification of their habitats, in which they are identified and d...

2009
Zhen-Ming Ge Xiao Zhou Tian-Hou Wang Kai-Yun Wang Enle Pei Xiao Yuan

Migratory Shorebirds in a Newly Formed Wetland, Yangtze River Estuary, China Zhen-Ming Ge1,2,*, Xiao Zhou1,2, Tian-Hou Wang1, Kai-Yun Wang1, Enle Pei3,4, and Xiao Yuan3,4 1School of Life Sciences, Shanghai Key Laboratory of Urbanization and Ecological Restoration, East China Normal University, Shanghai 200062, China 2Faculty of Forest Sciences, University of Joensuu, P.O. Box 111, FI-80101 Joen...

Journal: :Natural resources conservation and research 2022

In order to guide the management, protection and utilization of wetlands in Shaanxi Province, this paper analyzes summarizes current situation existing problems wetland resources puts forward suggestions accordingly. There are 4 12 types 308,500 hectares. The area proportion various 257,600 hectares river wetlands, 83.50%; 32,300 artificial 10.46%; 7,600 lake 2.46%; 11,000 swamp 3.58%. 77 famil...

Journal: :IOP Conference Series: Earth and Environmental Science 2019

Journal: :Frontiers in Environmental Science 2023

Reservoir ecological operation has become an important means of protection and restoration. The reservoirs on sediment-laden rivers with water supply, sediment transport, flood control, wetland protection, power generation as the primary objectives is a challenge in resources management. Currently, most studies reservoir models involve single objective, inadequacy corresponding constraint condi...

2006
Karolina Stark

Threats from man-made radionuclides include waste issues, increasing number of power plants, underground bomb testing, nuclear weapons, and “dirty bombs”. Until recently the ionizing radiation protection system focused on protecting humans with an implied protection of biota. However, goals of sustainable development and precautionary principles for human activity are leading to an inclusion of...

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