Results 161 to 170 of about 14,993 (300)

Economic Appraisal of Profitability and Sustainability of Peri-Urban Agriculture in Bangkok [PDF]

Promoters of urban and peri-urban agriculture generally stress its positive role in terms of food security, income, employment and improvement of the urban environment.
Vagneron, I.
core  

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

River Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +1 more source

Stream channel storage: Closing the watershed total phosphorus budget. [PDF]

J Environ Qual
Beck WJ, Kovar JL, Isenhart TM, Moore PL, Rahutomo S, Schilling KE, Schultz RC, Thompson ML, Wolter CF, Streeter MT, Cole KJ, Tomer MD.   +11 more
europepmc   +1 more source

Hydrology

, 1998
This chapter describes the hydrology of the Great Lakes within the Main Ethiopian Rift Valley. Their size is analysed and a projection of future scenarios is made including the implication of the smaller lakes to dry up with a ...
BILLI, Paolo, P.
core  

Assessing Spatial Riverbed Clogging and Its Dynamics at the Reach Scale: A Coupled Approach Combining Field Measurements and 1D Hydro‐Sedimentary Numerical Modeling

River Research and Applications, EarlyView.
ABSTRACT Assessing spatial and temporal variability of clogging in gravel‐bed rivers is challenging because field methods typically rely on labor‐intensive measurements of fine‐sediment content, porosity, or hydraulic conductivity. Clogging is also highly dynamic, driven by hydro‐sedimentary conditions; yet few studies have examined it at large scales ...
D. Hernandez, B. Camenen, A. Bonnefoy
wiley   +1 more source

Critical zone agrohydrology: An integrative paradigm for agricultural water sustainability. [PDF]

PNAS Nexus
Zhao Y, Guo L, Liu J, Xue J, Liu J, Chen Y, Cai X, Carroll KC, Jobbagy E, Loheide SP, Boomer KMB, Li Y.   +11 more
europepmc   +1 more source

Experimental Study on Fine Sediment Infiltration (FSI) Processes in Different Gravel Mixtures

River Research and Applications, EarlyView.
ABSTRACT Fine sediment infiltration (FSI) can lead to riverbed clogging, thereby degrading important habitats for aquatic biota in the hyporheic interstitial zone of gravel‐bed rivers (e.g., by reducing oxygen availability). This stress on rivers may increase from anthropogenic influences and can be counteracted by artificial gravel augmentation to ...
Michael Paster, Gábor Fleit, Helmut Habersack, Christoph Hauer   +3 more
wiley   +1 more source

Hydrological seasonality drives a predictable reversal in anthropogenic pollution dominance in mountain watersheds. [PDF]

iScience
Yang H, Zhao Y, Hou X, Li Z, Cao J.
europepmc   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

Integrating soil health and manure practices to advance sustainability for US dairy farms. [PDF]

J Environ Qual
Cloutier ML, Zipper S, Liptzin D, Adair EC, Auvermann BW, Bell JM, Bock B, Brandani CB, Busch D, Clark NE, Czymmek KJ, Faulkner JW, von Haden AC, Horwath WR, Jackson RD, Ketterings QM, Khalsa SDS, Meyer D, Sanford GR, Wallace J, Afshar RK, Morgan CLS.   +21 more
europepmc   +1 more source