Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Gretchen M. Gettel"'
Publikováno v:
Frontiers in Environmental Science, Vol 11 (2023)
Externí odkaz:
https://doaj.org/article/53608109773c48839bc1542cce506f9b
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Although several studies have investigated the relationships between water quality in rivers and the types of land use within their catchments, many aspects of these relationships remain unclear in Afromontane-savanna rivers, especially the interacti
Externí odkaz:
https://doaj.org/article/b7aff72c6d7944cf993026feaefcb756
Autor:
Susan Namaalwa, Anne A. van Dam, Gretchen M. Gettel, Rose C. Kaggwa, István Zsuffa, Kenneth Irvine
Publikováno v:
Frontiers in Environmental Science, Vol 8 (2020)
The Namatala Wetland in Uganda faces severe degradation from agricultural development and urbanization. Besides the Namatala River and tributary rural streams, the wetland receives surface water from Mbale town and wastewater from two sets of wastewa
Externí odkaz:
https://doaj.org/article/901be1cbe3414b7fa4c03ebaa44fc56b
Autor:
Md Ataul Gani, Gretchen M. Gettel, Johannes van der Kwast, Anne van Dam, Michael E. McClain, Kenneth Irvine
The present investigation was carried out over a 50 km reach, the Padma River of Bangladesh, downstream of the confluence of the Ganges and Brahmaputra rivers. The study area is highly dynamic, with diverse geomorphic units, with high rates of bank e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32c1b3c9ecc36178478efd1c85160446
https://doi.org/10.5194/egusphere-egu23-16321
https://doi.org/10.5194/egusphere-egu23-16321
Autor:
Yiming Zhao, Li Wan, Klaus Butterbach-Bahl, Shan Lin, Gretchen M. Gettel, Haofeng Lv, Waqas Qasim
Publikováno v:
Plant and Soil. 471:157-174
Background About 30 % of vegetables in China are produced in intensively managed greenhouses comprising flood irrigation and extreme rates of nitrogen fertilizers. Little is known about denitrification N losses. Methods Soil denitrification rates wer
Autor:
Elisa, Calamita, Annunziato, Siviglia, Gretchen M, Gettel, Mário J, Franca, R Scott, Winton, Cristian R, Teodoru, Martin, Schmid, Bernhard, Wehrli
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance Hydroelectric reservoirs emit substantial amounts of CO2, especially in the tropics. Since many such systems exist and many more will be built within decades, it is important to assess their role in the carbon cycle. A major source of em
Autor:
Mário J. Franca, R. Scott Winton, Martin Schmid, Cristian R. Teodoru, Elisa Calamita, Bernhard Wehrli, Gretchen M. Gettel, Annunziato Siviglia
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 118(25)
Proceedings of the National Academy of Sciences of the United States of America, 118 (25)
Proceedings of the National Academy of Sciences of the United States of America, 118 (25)
Recent studies show that tropical hydroelectric reservoirs may be responsible for substantial greenhouse gas emissions to the atmosphere, yet emissions from the surface of released water downstream of the dam are poorly characterized if not neglected
Economic development and food insecurity are an important drivers of land use change in tropical ecosystems. In sub-Saharan Africa, forest and wetland conversion to agriculture and zero-grazing policies are common in highland systems, while livestock
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f410b20bbb9f0b0b3de526f082067316
https://doi.org/10.5194/egusphere-egu2020-22566
https://doi.org/10.5194/egusphere-egu2020-22566
Greenhouse gas (GHG) emission estimates from tropical African rivers are underrepresented in global datasets, resulting in uncertainties in their contributions to global emissions. To better constrain the contribution of rivers and streams to GHG emi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3816dba7161dd79d27d292629fb60233
https://doi.org/10.5194/egusphere-egu2020-20112
https://doi.org/10.5194/egusphere-egu2020-20112
Autor:
Steven Bouillon, Gretchen M. Gettel, Michael E. McClain, Kátya G. Abrantes, Kenneth Irvine, Frank O. Masese
Publikováno v:
Freshwater biology, 63(11):1365-1380
1. Knowledge of trophic structure is important to understand sources and pathways of energy resources in community ecology and to identify determinants of ecosystem changes. Yet, little is known from rivers of African savanna receiving large inputs o