Results 261 to 270 of about 42,232 (332)

Shrinking thermokarst lakes and ponds on the northeastern Qinghai-Tibet plateau over the past three decades

Permafrost and Periglacial Processes, 2021
Identifying the changes in thermokarst lake dynamics has a significant contribution to landscape‐scale hydrology, ecology, and assessment of carbon budgets in permafrost regions.
Dongliang Luo, Mihaela Şerban, Huijun Jin   +2 more
exaly   +2 more sources

Extracting aquaculture ponds from natural water surfaces around inland lakes on medium resolution multispectral images

International Journal of Applied Earth Observation and Geoinformation, 2019
A considerable portion of the natural inland lakes has been gradually transformed into aquaculture ponds to meet the enormous demand for aquaculture products. The changes in ponds area can be used to measure the impact of human activities on inland lakes.
Di Wang, Zhe Zeng, Wenxia Tan
exaly   +2 more sources

Lakes and Ponds

Introduction to Water Resources and Environmental Issues, 2021
S. Woodward
semanticscholar   +2 more sources

Planktonic algae abundance and diversity are similar in urban stormwater ponds of different geographic locations and natural shallow lakes [PDF]

Urban Ecosystems, 2020
Elevated levels of different contaminants are typical to stormwater management ponds. Despite that, a number of works report stormwater ponds serving as habitats for a variety of biota. In this study we aimed to examine phytoplankton communities of urban
Paul C. Frost, Jes Vollertsen, Greta Minelgaite   +2 more
exaly   +2 more sources

Small ponds with major impact: The relevance of ponds and lakes in permafrost landscapes to carbon dioxide emissions

Global Biogeochemical Cycles, 2012
Although ponds make up roughly half of the total area of surface water in permafrost landscapes, their relevance to carbon dioxide emissions on a landscape scale has, to date, remained largely unknown.
Moritz Langer, Julia Boike, J Siemens
exaly   +2 more sources

Shallow Lakes and Ponds

, 2009
M. Meerhoff, E. Jeppesen
semanticscholar   +3 more sources

The Biology of Lakes and Ponds

2017
AbstractThe Biology of Lakes and Ponds focuses on the interactions between the abiotic frame, such as turbulence, temperature, pH and nutrients, and the organisms, including interactions with and among organisms at the individual, population and community level.
Christer Brönmark, Lars-Anders Hansson
openaire   +1 more source

Lakes and Ponds

1974
Biogeography of lakes and ponds is concerned with the study of the structure of aquatic ecosystems and functional processes in the freshwater habitat (Overbeck 1972). Lakes be divided, according to their biogeographical peculiarities into polar, temperate and tropical lakes. Polar lakes have their surface frozen for several months in the year and their
openaire   +1 more source

Liming acidified lakes and ponds [PDF]

, 2013
Louis A. Helfrich, Richard J.
Helfrich, Louis A., Neves, Richard J., Parkhurst, James A.   +2 more
openaire   +1 more source

Nitrogen cycling in Arctic lakes and ponds

SIL Proceedings, 1922-2010, 1988
Nitrogen cycle studies were carried out on two distinct systems in arctic Alaska. Research on the first, a series of small tundra thaw ponds near Barrow, was carried out as part of the International Biological Program Tundra Biome program. Research on the contrasting system, Toolik Lake, was done during the year following completion of the Barrow pond ...
V. Alexander, S. C. Whalen, K. M. Klingensmith   +2 more
openaire   +1 more source