Understanding wetland plant dynamics in response to water table changes through ecohydrological modelling

Ecohydrology ◽  
2012 ◽  
Vol 6 (2) ◽  
pp. 287-296 ◽  
Author(s):  
Bakkiyalakshmi Palanisamy ◽  
Ting Fong May Chui
Keyword(s):  
Water Table ◽  
Wetland Plant ◽  
Plant Dynamics ◽  
Response To Water

Effect of Water Table Depth on the Yield of Seven Sugarcane Varieties in Puerto Rico

1969 ◽  
Vol 60 (2) ◽  
pp. 228-237
Author(s):  
Raúl Pérez Escolar ◽  
William F. Allison
Keyword(s):  
Puerto Rico ◽  
Water Table ◽  
Commercial Production ◽  
Water Table Depth ◽  
Field Conditions ◽  
Sugarcane Varieties ◽  
Effect Of Water ◽  
Actual Field ◽  
Response To Water

The effect of water table depth on yield of sugarcane varieties PR 980, PR 1028, PR 1059, PR 1141, PR 64-610, PR 61-632 and PR 64-2705 was studied in lysimeter tanks in the field. Using plastic drains at varying distances and depths, variety PR 980 was studied on a 5-ha farm. Results obtained show that varieties differ in their response to water table conditions. Varieties PR 980, PR 1059, PR 64-610, PR 61-632 and PR 64-2705 yielded significantly more cane and sugar when the water table was lowered. Varieties PR 1028 and PR 1141 did not show statistically significant differences among treatment differentials. Under actual field conditions, using perforated plastic drains, variety PR 980 yielded significantly more sugar than in undrained plots. The results obtained in the lysimeter tanks are in accord with those observed under commercial production.

Banana Plant Response to Water Table Levels

1976 ◽  
Vol 19 (4) ◽  
pp. 0675-0677 ◽  
Author(s):  
Massood Ghavami
Keyword(s):  
Water Table ◽  
Plant Response ◽  
Banana Plant ◽  
Response To Water

Temporal Hyporheic Zone Response to Water Table Fluctuations

Ground Water ◽  
2015 ◽  
Vol 54 (2) ◽  
pp. 274-285 ◽  
Author(s):  
Jonathan M. Malzone ◽  
Sierra K. Anseeuw ◽  
Christopher S. Lowry ◽  
Richelle Allen-King
Keyword(s):  
Water Table ◽  
Hyporheic Zone ◽  
Water Table Fluctuations ◽  
Response To Water

WETLAND PLANT DYNAMICS

2011 ◽  
pp. 47-68
Author(s):  
Norio Tanaka ◽  
S.K. Weragoda
Keyword(s):  
Wetland Plant ◽  
Plant Dynamics

scholarly journals Nitrogen Release in Pristine and Drained Peat Profiles in Response to Water Table Fluctuations: A Mesocosm Experiment

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Merjo P. P. Laine ◽  
Rauni Strömmer ◽  
Lauri Arvola
Keyword(s):  
Water Table ◽  
Dissolved Organic Nitrogen ◽  
Organic Nitrogen ◽  
Mesocosm Experiment ◽  
Nitrogen Release ◽  
Hydrological Conditions ◽  
Water Table Fluctuations ◽  
Drying And Rewetting ◽  
Response To Water ◽  
Artificial Water

In the northern hemisphere, variability in hydrological conditions was suggested to increase as a consequence of climate warming, which may result in longer droughts than the area has experienced before. Due to their predominately anoxic conditions, peatlands are expected to respond to changes in hydrological conditions, such as successive drying and rewetting periods. As peatlands are rich in organic matter, any major changes in water table may influence the decomposition of it. The hydrological conditions may also influence release of nutrients from peat profiles as well as affect their transport to downstream ecosystems. In our mesocosm experiment, artificial water table fluctuations in pristine peat profiles caused an increase in dissolved organic nitrogen (DON) and ammonium(NH4+-N)concentrations, while no response was found in drained peat profiles, although originating from the same peatland complex.

scholarly journals DOC and CO2-C Releases from Pristine and Drained Peat Soils in Response to Water Table Fluctuations: A Mesocosm Experiment

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Merjo P. P. Laine ◽  
Rauni Strömmer ◽  
Lauri Arvola
Keyword(s):  
Water Table ◽  
Dilution Effect ◽  
High Water ◽  
Mesocosm Experiment ◽  
Water Runoff ◽  
Peat Soils ◽  
High Water Table ◽  
Doc Load ◽  
Agricultural Areas ◽  
Response To Water

Hydrological conditions are considered to be among the main drivers influencing the export of dissolved organic carbon (DOC) from terrestrial to aquatic ecosystems, and hydrology is likely to alter due to climate change. We built a mesocosm experiment by using peat profiles from a pristine and from a drained (drained in 1978) peatland. A several-week-long low water table period followed by a high water table period, that is, a setting mimicking drought followed by flood, released relatively more DOC from pristine peat than from drained peat. From pristine peat profiles DOC was released into soil water in such quantities that the concentration of DOC remained stable despite dilution caused by added spring water to the mesocosms. In drained peat the DOC concentrations decreased during the high water table period indicating stronger dilution effect in comparison to pristine peat. At the landscape level DOC load from a drained peatland to the recipient water body may, however, increase during flooding because of high water runoff out of the peatland containing high DOC concentrations relative to the forest and agricultural areas. During the high water table period neither peat type nor water table had any clear impact on carbon dioxide (CO2-C) fluxes.

scholarly journals Iron-mediated soil carbon response to water-table decline in an alpine wetland

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Yiyun Wang ◽  
Hao Wang ◽  
Jin-Sheng He ◽  
Xiaojuan Feng
Keyword(s):  
Soil Carbon ◽  
Water Table ◽  
Alpine Wetland ◽  
Response To Water
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