Results 21 to 30 of about 16,053 (267)

Influence of hydrological pathways on dissolved organic carbon fluxes in tropical streams

open access: yesEcology and Evolution, 2017
Water flow pathways and water balance are fundamental components for understanding the dynamics of C in the soil/water interface of small basins. The objective of this study was to describe the seasonal variations and estimate the annual balance of ...
Eline Nayara Dantas daCosta   +5 more
doaj   +1 more source

Linking landscape attributes to salmon and decision-making in the southern Kenai Lowlands, Alaska, USA

open access: yesEcology and Society, 2021
While Pacific salmon are economically and culturally important worldwide, Alaska, USA is one of the few remaining places on earth where sustainable management of salmon is possible, even in the face of wide-ranging threats, including overharvesting and ...
Coowe M. Walker   +9 more
doaj   +1 more source

Time lags in watershed-scale nutrient transport: an exploration of dominant controls

open access: yesEnvironmental Research Letters, 2017
Unprecedented decreases in atmospheric nitrogen (N) deposition together with increases in agricultural N-use efficiency have led to decreases in net anthropogenic N inputs in many eastern US and Canadian watersheds as well as in Europe.
K J Van Meter, N B Basu
doaj   +1 more source

Comparative analysis of classification algorithms for critical land prediction in agricultural cultivation areas

open access: yesJurnal Teknologi dan Sistem Komputer, 2020
Currently, the identification of critical land, that has been physically, chemically, and biologically damaged, uses a geographic information system. However, it requires a high cost to get the high resolution of satellite images.
Deden Istiawan
doaj   +1 more source

Environmental Impact Assessment of reservoir construction: new perspectives for restoration economy, and development: the Belo Monte Power Plant case study [PDF]

open access: yesBrazilian Journal of Biology, 2015
The Environmental Impact Assessment of reservoir construction can be viewed as a new strategic perspective for the economic development of a region. Based on the principles of a watershed approach a interdisciplinary and multidisciplinary systemic view ...
JG. Tundisi   +2 more
doaj   +1 more source

Ultrametric Watersheds [PDF]

open access: yes, 2009
We study hierachical segmentation in the framework of edge-weighted graphs. We define ultrametric watersheds as topological watersheds null on the minima. We prove that there exists a bijection between the set of ultrametric watersheds and the set of hierarchical edge-segmentations.
openaire   +2 more sources

Total Suspended Solids (TSS) Spatial Distribution of Manganese in Resident Well Impacted by Residential Activity: A Case Study of Medokan Ayu District-Surabaya

open access: yesParagraphs Environmental Design, 2023
TSS (Total Suspended Solid) is an optical turbidity parameter to assess water quality and provide essential information for the water environment. Particularly, the degradation of watersheds creates immense pressure on water quality, especially in arid ...
Taty Alfiah, Jenny Caroline
doaj   +1 more source

Evaluation of Hierarchical Watersheds [PDF]

open access: yesIEEE Transactions on Image Processing, 2018
This paper aims to understand the practical features of hierarchies of morphological segmentations, namely the quasi-flat zones hierarchy and watershed hierarchies, and to evaluate their potential in the context of natural image analysis. We propose a novel evaluation framework for the hierarchies of partitions designed to capture various aspects of ...
Perret, Benjamin   +3 more
openaire   +5 more sources

Financialization at a watershed in the USA [PDF]

open access: yesCompetition & Change, 2018
In the period following the Great Recession of 2007–2009 the financialization of the US economy reached a watershed characterized by stagnant financial profits, falling proportions of financial sector and mortgage debt, and rising proportion of public debt. The main macroeconomic indicators of financialization in the USA show structural breaks that can
Costas Lapavitsas, Ivan Mendieta-Muñoz
openaire   +2 more sources

A prediction model of soil organic carbon into river and its driving mechanism in red soil region

open access: yesScientific Reports
Soil erosion contributes to the irreversible loss of soil organic carbon (SOC) into rivers (SOCR), posing risks to food security and carbon cycle assessments.
Yanhu He   +3 more
doaj   +1 more source

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