نتایج جستجو برای: urban wetland

تعداد نتایج: 180821  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Romano Foti Manuel del Jesus Andrea Rinaldo Ignacio Rodriguez-Iturbe

With urban, agricultural, and industrial needs growing throughout the past decades, wetland ecosystems have experienced profound changes. Most critically, the biodiversity of wetlands is intimately linked to its hydrologic dynamics, which in turn are being drastically altered by ongoing climate changes. Hydroperiod regimes, e.g., percentage of time a site is inundated, exert critical control in...

2010
Pu Wang Wenxing Bao

Wetlands which are the planet’s most important ecosystem have high scientific research -value and will bring us both social and economic benefits. However, duing to various natural and man made factors, more and more wetlands have converted to agricultural land and urban land. Now, the changes in wetlands’ area and quantity have caused public’s widespread concern. And wetland’s management and p...

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

Global wetlands are believed to be climate sensitive, and are the largest natural emitters of methane (CH4). Increased wetland CH4 emissions could act as a positive feedback to future warming. The Wetland and Wetland CH4 Inter-comparison of Models Project (WETCHIMP) investigated our present ability to simulate large-scale wetland characteristics and corresponding CH4 emissions. To ensure inter-...

Journal: :Anthropocene coasts 2022

Abstract Urban coastal wetlands are fragile ecosystems that provide important ecosystemic services. However, these subject to considerable external pressures from urban development, which leads serious disturbances in their structure, functioning, and diversity as a result of the advancement urban, agricultural, foraging, drainage activities, well displacement endemic species by invasive ones. ...

Journal: :Forests 2022

Urban wetlands are undergoing intensive conversion from natural to farmlands, woodlands, and even alkaline land. This study aimed determine the effects of land on soil microbial communities urban in hinterland Songnen Plain, Northeastern China. Soil samples were collected various sites Longfeng wetland, including swamp wetland (SW), meadow (MW), woodland (WL), farmland (FL), (AL). High-throughp...

2007
Franco A. Montalto Jean-Yves Parlange Tammo S. Steenhuis

[1] Wetland restoration efforts are ongoing in many urban estuaries. In this context the hydrologic characteristics of restored wetlands are of paramount importance since the spatially and temporally variable position of the water table and of soil saturation establishes the oxidation state of the substrate, which, in turn, affects the wetland’s biogeochemical composition and the biological com...

Journal: :Chemosphere 2015
Hagar ElBishlawi Peter R Jaffe

Dissolved organic matter (DOM), although highly variable and not very well characterized, plays a role in many important environmental reaction and transport processes, including trace metal mobilization. This study characterizes heterogeneous DOM from the pore-water of a restored urban tidal marsh, using chemical, optical, and electrochemical methods for dissolved organic carbon/nitrogen ratio...

Journal: :Environmental Management and Sustainable Development 2017

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