نتایج جستجو برای: wetland protection

تعداد نتایج: 189592  

2015
Se-Yeun Lee Maureen E. Ryan Alan F. Hamlet Wendy J. Palen Joshua J. Lawler Meghan Halabisky Curtis J. Richardson

Wetlands are globally important ecosystems that provide critical services for natural communities and human society. Montane wetland ecosystems are expected to be among the most sensitive to changing climate, as their persistence depends on factors directly influenced by climate (e.g. precipitation, snowpack, evaporation). Despite their importance and climate sensitivity, wetlands tend to be un...

Journal: :Remote Sensing 2023

Wetland cities were proposed by the International Convention Organization for protection of urban wetlands. Few studies have performed land cover classifications internationally recognized wetland or explored what contribution classification results can make to establishment additional date. Based on Sentinel-1 and 2 data, this study used a 10-fold random forest method classify first six in Chi...

2015
J. Luke Boutwell John V. Westra J. L. Boutwell J. V. Westra

Communities along the USA coast are highly vulnerable to coastal storms. Trends in population growth, climatic events and land use are likely to exacerbate future damages. Coastal management entities are faced with decisions about how to manage resources in a manner that improves environmental quality and provides the maximum benefit for coastal populations. This is particularly true along the ...

2017
Yinan Zhang Chunli Chu Lei Liu Shengguo Xu Xiaoxue Ruan Meiting Ju

A 'red line' was established, identifying an area requiring for ecological protection in Tianjin, China. Within the protected area of the red line area, the Qilihai wetland is an important ecotope with complex ecological functions, although the ecosystem is seriously disturbed due to anthropogenic activities in the surrounding areas. This study assesses the water quality status of the Qilihai w...

Journal: :FEMS microbiology ecology 2012
Anne D Jungblut Susanna A Wood Ian Hawes Jenny Webster-Brown Colin Harris

The Pyramid Trough (Lat 78°S) has recently gained protection under the Antarctic Treaty system, owing to its wetland values. Here, we describe the microbial diversity of this system, with emphasis on cyanobacteria, and evaluate environment-biota relationships. Geochemistry separates ponds along hydrological gradients receiving recent inflows of dilute meltwater, from a second group that is rare...

2008
G. Randazzo

The Manzala Lagoon in Egypt's Nile ' »elta has become a sediment sink of reduced area and depth, with increased contaminant levels. Loss of much-needed fresh to brackish water reserves and decreased fish catches have serious ramifications. Herein, maps of temporal and regional sediment distributions in Manzala incorporate petrological and statistical analyses of 200 surficial and short core sam...

Measuring salinity of water at different depths along six transacts at the mouth of the wetland and along five tributaries connecting the wetland to the sea the extent of Caspian Sea penetration into Anzali Wetland was determined. The results demonstrated a depth-dependent salinity gradient extending up to 10 kilometres into the wetland. A pattern of saltwater and freshwater interface is presen...

2013
Julie C Anderson Jules C Carlson Jennifer E Low Jonathan K Challis Charles S Wong Charles W Knapp Mark L Hanson

BACKGROUND The discharge of complex mixtures of nutrients, organic micropollutants, and antibiotic resistance genes from treated municipal wastewater into freshwater systems are global concerns for human health and aquatic organisms. Antibiotic resistance genes (ARGs) are genes that have the ability to impart resistance to antibiotics and reduce the efficacy of antibiotics in the systems in whi...

2013
R. Wania J. R. Melton E. L. Hodson B. Poulter B. Ringeval R. Spahni T. Bohn C. A. Avis G. Chen A. V. Eliseev P. O. Hopcroft W. J. Riley Z. M. Subin H. Tian P. M. van Bodegom T. Kleinen Z. C. Yu J. S. Singarayer S. Zürcher D. P. Lettenmaier D. J. Beerling S. N. Denisov C. Prigent F. Papa

The Wetland and Wetland CH4 Intercomparison of Models Project (WETCHIMP) was created to evaluate our present ability to simulate large-scale wetland characteristics and corresponding methane (CH4) emissions. A multi-model comparison is essential to evaluate the key uncertainties in the mechanisms and parameters leading to methane emissions. Ten modelling groups joined WETCHIMP to run eight glob...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید