Influence of agricultural practice on trace metals in soils and vegetation in the water conservation area along the East River (Dongjiang River), South China

2012 ◽  
Vol 431 ◽  
pp. 26-32 ◽  
Author(s):  
Chunling Luo ◽  
Renxiu Yang ◽  
Yan Wang ◽  
Jun Li ◽  
Gan Zhang ◽  
...  
Keyword(s):  
Trace Metals ◽  
South China ◽  
Water Conservation ◽  
Agricultural Practice ◽  
Conservation Area ◽  
East River ◽  
Dongjiang River ◽  
Water Conservation Area

Trace metals in the soils of Water Conservation Area of Florida Everglades: Considerations for ecosystem restoration

2016 ◽  
Vol 18 (2) ◽  
pp. 342-351 ◽  
Author(s):  
Salwinder S. Dhaliwal ◽  
Gurpal S. Toor ◽  
Ignacio A. Rodriguez-Jorquera ◽  
Todd Z. Osborne ◽  
Susan Newman
Keyword(s):  
Trace Metals ◽  
Water Conservation ◽  
Ecosystem Restoration ◽  
Florida Everglades ◽  
Conservation Area ◽  
Water Conservation Area

Linking soil water and solutes fluxes to soil properties and vegetation types: insights from a case-study in the high tropical Andes of Ecuador

2021 ◽  
Author(s):  
Sebastián Páez-Bimos ◽  
Veerle Vanacker ◽  
Marcos Villacis ◽  
Marlon Calispa ◽  
Oscar Morales ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Water Conservation ◽  
Water Flux ◽  
Water Fluxes ◽  
Vegetation Types ◽  
Tropical Andes ◽  
Conservation Area ◽  
Solute Fluxes ◽  
Doc Concentration ◽  
Water Conservation Area

<p>The high tropical Andes ecosystem, known as páramo, provides important hydrological services to densely populated areas in the Andean region. In order to manage these services sustainably, it is crucial to understand the biotic and abiotic processes that control both water quality and fluxes. Recent research in the páramo highlights a knowledge gap regarding the role played by soil-vegetation interactions in controlling soil-water processes and resulting water and solute fluxes.</p><p>Here, we determine the hydrological and geochemical fluxes in four soil profiles in the páramo of the Antisana´s water conservation area in northern Ecuador. Water fluxes were measured biweekly with field fluxmeters in the hydrological year Apr/2019- Mar/2020 under two contrasting vegetation types: tussock-like grass (TU) and cushion-forming plants (CU). Soil solution was collected in parallel with wick samplers and suction caps for assessing the concentrations of dissolved cations, anions and organic carbon (DOC). In addition, soil moisture was measured continuously in the upper meter of the soil profile, i.e. first three horizons (A, 2A and 2BC), using water content reflectometers. The vertical water flux in the upper meter of each soil profile was simulated using the 1D HYDRUS model. We carried out a Sobol analysis to identify sensitive soil hydraulic parameters. We then derived water fluxes by inverse modeling, based on the measured soil moisture. We validated the calculated water fluxes using the fluxmeter data. Solute fluxes were estimated by combining the water fluxes and the soil solution compositions.</p><p>Our preliminary results suggest that water fluxes and DOC concentration vary under different vegetation types. The fluxmeter data from the 2A horizon indicates that the cumulative water flux under TU (2.8 - 5.7 l) was larger than under CU (0.8 – 1.1 l) during the dry season (Aug-Sep and Dec-Jan). However, the opposite trend was observed in the wet season for maximum water fluxes. Moreover, the DOC concentration in the uppermost horizon was higher under CU (47.3 ±2.2 mg l<sup>-1</sup>) than under TU (3.1 ±0.2 mg l<sup>-1</sup>) vegetation during the monitoring period. We associate the water and solute responses under different vegetation types to the contrasting soil hydro-physical and chemical properties (e.g., saturated hydraulic conductivity and organic carbon content) in the uppermost soil horizon. Our study illustrates the existence of a spatial association between vegetation types, water fluxes and solute concentrations in Antisana´s water conservation area. By modelling the hydrological balance of the upper meter of the soil mantle, the water and solute fluxes will be estimated for soils with different vegetation cover.</p><p> </p>

scholarly journals Spatial Distribution of Soil Properties in Water Conservation Area 3 of the Everglades

2006 ◽  
Vol 70 (5) ◽  
pp. 1662-1676 ◽  
Author(s):  
Gregory L. Bruland ◽  
Sabine Grunwald ◽  
Todd Z. Osborne ◽  
K. Ramesh Reddy ◽  
Susan Newman
Keyword(s):  
Spatial Distribution ◽  
Soil Properties ◽  
Water Conservation ◽  
Conservation Area ◽  
Water Conservation Area

Calibration of modern pollen along a nutrient gradient in Everglades Water Conservation Area-2A

Wetlands ◽  
1999 ◽  
Vol 19 (3) ◽  
pp. 675-688 ◽  
Author(s):  
Jennifer E. Jensen ◽  
Sherri R. Cooper ◽  
Curtis J. Richardson
Keyword(s):  
Water Conservation ◽  
Conservation Area ◽  
Nutrient Gradient ◽  
Modern Pollen ◽  
Water Conservation Area

scholarly journals Difference assessment on ecological functions of artificial coniferous forests in water conservation area of Northwestern Hebei

2020 ◽  
Vol 35 (6) ◽  
pp. 1348
Author(s):  
SUN Fei-fei ◽  
ZHANG Zeng-xiang ◽  
ZUO Li-jun ◽  
ZHAO Xiao-li ◽  
PAN Tian-shi ◽  
...  
Keyword(s):  
Water Conservation ◽  
Coniferous Forests ◽  
Ecological Functions ◽  
Conservation Area ◽  
Water Conservation Area

scholarly journals Recent Changes in Soil Total Phosphorus in the Everglades: Water Conservation Area 3

2006 ◽  
Vol 129 (1-3) ◽  
pp. 379-395 ◽  
Author(s):  
Gregory L. Bruland ◽  
Todd Z. Osborne ◽  
K. R. Reddy ◽  
Sabine Grunwald ◽  
Susan Newman ◽  
...  
Keyword(s):  
Total Phosphorus ◽  
Water Conservation ◽  
Conservation Area ◽  
Water Conservation Area
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