scholarly journals The relative influence of land cover, hydrology, and in‐stream processing on the composition of dissolved organic matter in boreal streams

2015 ◽  
Vol 120 (8) ◽  
pp. 1491-1505 ◽  
Author(s):  
Dolly N. Kothawala ◽  
Xing Ji ◽  
Hjalmar Laudon ◽  
Anneli M. Ågren ◽  
Martyn N. Futter ◽  
...  
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
Stream Processing ◽  
Relative Influence ◽  
Boreal Streams

scholarly journals Riparian land cover and hydrology influence stream dissolved organic matter composition in an agricultural watershed

2020 ◽  
Vol 717 ◽  
pp. 137165 ◽  
Author(s):  
Oliva Pisani ◽  
David D. Bosch ◽  
Alisa W. Coffin ◽  
Dinku M. Endale ◽  
Dan Liebert ◽  
...  
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
Agricultural Watershed ◽  
Organic Matter Composition

scholarly journals Effects of storm events on mobilisation and in-stream processing of dissolved organic matter (DOM) in a Welsh peatland catchment

2009 ◽  
Vol 99 (1-3) ◽  
pp. 157-173 ◽  
Author(s):  
Kari Austnes ◽  
Christopher D. Evans ◽  
Caroline Eliot-Laize ◽  
Pamela S. Naden ◽  
Gareth H. Old
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Stream Processing ◽  
Storm Events

scholarly journals Variation in dissolved organic matter (DOM) stoichiometry in U.K. freshwaters: Assessing the influence of land cover and soil C:N ratio on DOM composition

2019 ◽  
Vol 64 (6) ◽  
pp. 2328-2340 ◽  
Author(s):  
Christopher A. Yates ◽  
Penny J. Johnes ◽  
Alun T. Owen ◽  
Francesca L. Brailsford ◽  
Helen C. Glanville ◽  
...  
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
C:N Ratio ◽  
Dom Composition

Influence of land use and land cover on the spatial variability of dissolved organic matter in multiple aquatic environments

2017 ◽  
Vol 24 (16) ◽  
pp. 14124-14141 ◽  
Author(s):  
Shatrughan Singh ◽  
Padmanava Dash ◽  
Saurav Silwal ◽  
Gary Feng ◽  
Ardeshir Adeli ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
Spatial Variability ◽  
Aquatic Environments

The role of catchment soils and land cover on dissolved organic matter (DOM) properties in temperate lakes

2019 ◽  
Vol 570 ◽  
pp. 281-291 ◽  
Author(s):  
Margot Sepp ◽  
Toomas Kõiv ◽  
Peeter Nõges ◽  
Tiina Nõges
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
Temperate Lakes

Relationships Between Land Cover and Dissolved Organic Matter Change Along the River to Lake Transition

Ecosystems ◽  
2014 ◽  
Vol 17 (8) ◽  
pp. 1413-1425 ◽  
Author(s):  
James H. Larson ◽  
Paul C. Frost ◽  
Marguerite A. Xenopoulos ◽  
Clayton J. Williams ◽  
Ana M. Morales-Williams ◽  
...  
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter

Stormwater Dissolved Organic Matter: Influence of Land Cover and Environmental Factors

2013 ◽  
Vol 48 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Shawn P. McElmurry ◽  
David T. Long ◽  
Thomas C. Voice
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Land Cover ◽  
Dissolved Organic Matter

Phosphorus Enhances Uptake of Dissolved Organic Matter in Boreal Streams

Ecosystems ◽  
2017 ◽  
Vol 21 (4) ◽  
pp. 675-688 ◽  
Author(s):  
Audrey E. Mutschlecner ◽  
Jennifer J. Guerard ◽  
Jeremy B. Jones ◽  
Tamara K. Harms
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Boreal Streams

scholarly journals When Forests Take Over After Land Abandonment: Dissolved Organic Matter Response in Headwater Mountain Streams

2021 ◽  
Vol 3 ◽  
Author(s):  
Edurne Estévez ◽  
Jose M. Álvarez-Martínez ◽  
Thorsten Dittmar ◽  
José Barquín ◽  
Gabriel Singer
Keyword(s):  
Organic Matter ◽  
Land Cover ◽  
Dissolved Organic Matter ◽  
Soil Properties ◽  
Forest Cover ◽  
Secondary Forest ◽  
Freshwater Ecosystems ◽  
Mountain Streams ◽  
Land Cover Changes ◽  
Dom Composition

Dissolved organic matter (DOM) represents the largest pool of organic carbon in fluvial ecosystems. The majority of DOM in rivers is of terrigenous origin—making DOM composition highly dependent on vegetation cover and soil properties. While deforestation is still a worldwide anthropogenic phenomenon, current land cover change in temperate regions is often characterized by secondary succession processes following the abandonment of agricultural activities including grazing on pasturelands. This results in (secondary) forest expansion with a consequent, time-lagged transformation of soil properties. Predicting the time scale and spatial scale (i.e., location in the catchment: riparian vs. upslope areas) at which such land cover changes affect the terrestrial-aquatic carbon linkage and concomitantly alter properties of fluvial DOM as drivers of carbon cycling in freshwater ecosystems represents a new scientific challenge. In an attempt to identify potential legacy effects of land cover, i.e., reaction delays of fluvial DOM to changes in land cover, we here investigate the influence of specific current and historic (2 decade-old) land cover types on molecularly resolved fluvial DOM composition in headwater mountain streams. Our analysis is based on a scale-sensitive approach weighing in the distance of land cover (changes) to the stream and ultrahigh-resolution mass spectrometric analyses. Results identified the dominance of terrigenous DOM, with phenolic and polyphenolic sum formulae commonly associated to lignins and tannins, in all the studied streams. DOM properties mostly reflected present-day gradients of forest cover in the riparian area. In more forested catchments, DOM had on average higher molecular weight and a greater abundance of O-rich phenols and polyphenols but less aliphatics. Besides the modulation of the DOM source, our results also point to an important influence of photodegradation associated to variation in light exposition with riparian land cover in defining fluvial DOM properties. Despite expectations, we were unable to detect an effect of historic land cover on present-day DOM composition, at least at the investigated baseflow conditions, probably because of an overriding effect of current riparian vegetation.

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