Palustrine

Palustrine – Inputs

 

The conceptual models were compiled by researchers in collaboration with a wide range of stakeholders from Natural Resource Management groups, universities and government agencies and based on available scientific information[4].

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• Overview
• Inputs
• Processes
• Stocks
• Outputs
• Effects
• Management
• Links and References

Inputs of nitrogen (N) to palustrine systems come from a variety of sources and depend on where the system is in the landscape. Much of the data used in these pages is sourced from Queensland Great Barrier Reef (GBR) sugarcane growing areas. The general sources and inputs may be found in the pressure pages and are listed below. Some information relating specifically to palustrine wetlands is listed on this page.

General

• Air
• Water
• Biota
• Anthropogenic (direct human impacts)

Palustrine specific

Palustrine wetlands in the Great Barrier Reef catchments receive between 200-500kg N/ha every year, mostly through surface (dissolved inorganic nitrogen (900 (400-1400) g/ha/day))^*[3][4] and groundwater flows (137 (58-222) g/ha/day)^*. High inputs are delivered during the first floods in the wet season, and continued lower inputs reach the wetlands through groundwater during the dry season[1].

Biota

Nitrogen inputs by animals are generally small (2.9 (1.9-3.8) g/ha/day)^*[2]. However, animal inputs, such as birds, could have a significant importance at regional scale (e.g. tree swamps or shallow ponds especially in cleared or urban areas).

^*_{Nitrogen quantities are displayed as an average followed by a minimum and maximum (range), e.g. “average (min. of range - max. of range) units”.}

References

1. ^ Davis, AM, Pearson, RG, Brodie, JE & Butler, B (2016), 'Review and conceptual models of agricultural impacts and water quality in waterways of the Great Barrier Reef catchment area', Marine and Freshwater Research, vol. 68, pp. 1-19.
2. ^ Hahn, S, Bauer, S & Klaassen, M (2008), 'Quantification of allochthonous nutrient input into freshwater bodies by herbivorous waterbirds', Freshwater Biology, vol. 53, pp. 181-193.
3. ^ Joo, M, Raymond, MAA, McNeil, VH, Huggins, R, Turner, RDR & Choy, S (2012), 'Estimates of sediment and nutrient loads in 10 major catchments draining to the Great Barrier Reef during 2006-2009', Marine pollution bulletin. [online], vol. 65, no. 4-9, pp. 150-166. Available at: Scopus.
4. ^ Karim, F, Kinsey-henderson, A, Wallace, J, Arthington, AH & Pearson, RG (2012), Modelling wetland connectivity during overbank flooding in a tropical floodplain in north Queensland, Australia, vol. 2723, pp. 2710-2723.

Last updated: 31 July 2021