Carbon uptake and water use of vegetation

Macinnis-Ng, CM; Eamus, D

Carbon uptake and water use of vegetation

Macinnis-Ng, CM Eamus, D

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Publisher:: Land & Water Australia
Publication Type:: Report
Citation:: 2009, pp. 1 - 15
Issue Date:: 2009-01

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Field	Value	Language
dc.contributor.author	Macinnis-Ng, CM	en_US
dc.contributor.author	Eamus, D https://orcid.org/0000-0003-2765-8040	en_US
dc.date.issued	2009-01	en_US
dc.identifier.citation	2009, pp. 1 - 15	en_US
dc.identifier.isbn	978-0-9806611-4-9	en_US
dc.identifier.uri	http://hdl.handle.net/10453/16729
dc.description.abstract	Accumulation and storage of carbon in trees is one method of sequestration which may help offset increasing atmospheric CO2 concentrations. However, for every molecule of CO2 absorbed by a leaf, up to a thousand molecules of water are released as transpiration, water that has moved out of the soil into the atmosphere. Therefore, simply planting more trees to absorb more CO2 is not as risk-free as may originally be thought, especially in the dry continent that is Australia. The location for planting trees is also an important factor when considering their impact on water supplies. Trees use more water than grasses and shrubs and the productivity of trees is strongly influenced by water availability. Sites with more rainfall have faster rates of carbon accumulation and store more carbon. Whether trees should be planted in groundwater discharge zones or recharge zones is an important consideration when planting trees. Water use of a stand of trees changes as it ages. The period of greatest water use coincides with the period of most rapid carbon accumulation.Water is a scarce resource in Australia so any climate mitigation schemes involving reforestation must also consider the environmental, social and economic cost of water used by the new plantation	en_US
dc.publisher	Land & Water Australia	en_US
dc.title	Carbon uptake and water use of vegetation	en_US
dc.type	Report
utslib.location	Canberra, Australia	en_US
utslib.for	0502 Environmental Science and Management	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.confidential	false	en_US
pubs.place-of-publication	Canberra, Australia	en_US

Abstract:

Accumulation and storage of carbon in trees is one method of sequestration which may help offset increasing atmospheric CO2 concentrations. However, for every molecule of CO2 absorbed by a leaf, up to a thousand molecules of water are released as transpiration, water that has moved out of the soil into the atmosphere. Therefore, simply planting more trees to absorb more CO2 is not as risk-free as may originally be thought, especially in the dry continent that is Australia. The location for planting trees is also an important factor when considering their impact on water supplies. Trees use more water than grasses and shrubs and the productivity of trees is strongly influenced by water availability. Sites with more rainfall have faster rates of carbon accumulation and store more carbon. Whether trees should be planted in groundwater discharge zones or recharge zones is an important consideration when planting trees. Water use of a stand of trees changes as it ages. The period of greatest water use coincides with the period of most rapid carbon accumulation.Water is a scarce resource in Australia so any climate mitigation schemes involving reforestation must also consider the environmental, social and economic cost of water used by the new plantation

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http://hdl.handle.net/10453/16729