9th INTECOL International Wetlands Conference
Hernández M.E., Marín-Muñiz, J.L and MorenoCasasola P.
Studies of carbon sequestration in freshwater wetlands
26
17
16
12
11
22
15
1
20
3
4, 5
9
7, 8 10
18
9, 12, 14
21
25
24
3
6
1
2
3
4
5
6
7
8
9
10
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Brevik & Homburg 2004
Saunders et al. 2007
Xionan et al. 2003
Mitsch et al. 2010
Bernal & Mitsch 2012
Bernal & Mitsch 2008
Craft & Cassey 2000
Loomis & Craft 2010
Craft et al. 2008
Bridghan & Richardson 1993
Zehetner et al. 2009
2, 23
19
12
13
14
15
16
Hendriks et al. 2007
Reddy et al 1993
Craft % Richardson 1993
Graham et al. 2005
Brix et al. 2001
17 Turunen et al. 2002
18 Choi & Wang 2004
19 Webb 2002
20 Zhao et al. 2002
21 Wang et al. 2003
22 Gleason et al. 2005
23
24
25
26
Saunders et al. 2012
Zhong & Qiguo 2001
Sugihara et al. 2004
Thomas 2010
P.
How much carbon is stored in the soils of
these wetlands?
LAND USE CHANGE
SWAMPS
What happen with the
carbon stored in the
soils when land use
change ?
FLOODED GRAZING LANDS
Objectives
 To compare soil carbon sequestration in
freshwater wetlands with different plant
community (swamps vs. marshes) in the
coastal plain of Veracruz, Mexico.
 To investigate the lost of soil carbon when
freshwater swamps are changed to flooded
grasslands
STUDY SITES
Estero Dulce
Laguna Chica
STUDY SITES
Santander
Boquilla de oro
La Mancha
La Mancha (LM)
Municipality: Actopan, Ver
Typha domingensis
19o35’45´´N 96o23’05´´W
Anona glabra
Boquilla de Oro (BO)
Municipality: Alto Lucero, Ver.
Location:19º49'47''N,
96º26'59''W
Ficus sp
Cyperus sp
Pontederia sagitatta
Santander (ST)
Municipality- Alto Lucero, Ver.
19º91’25’’N 96º52’77’’W
Typha domingensis
Ficus insipida
Laguna Chica (LCH)
Municipality- Vega de Alatorre.
Location: 20º05’47.8” N
96°41’23.8” W
Pachira aquatica Hippocratea celastroides
Typha domingensis
Cyperus gigantus
Estero Dulce (ED)
Municipality- Tecolutla, Ver.
Location 20º17’53” N
96°52’19” W
Pachira aquatica
Thalia geniculata
Cyperus gigantus
METHODS
Soil cores 0-90 cm (aproximately)
18 cores in each site ( 9 swamps, 19
marshes)
3 composite soil samples in 1m2
Cut in layers of 2 cm
% of organic matter (LOI)
Bulk density
Short-term vertical accretion rate
Accretion plots (0.25 m-2)
Glitter
Sand
Glitter
Sand
3 plots in each type of wetland
1. Russian
peat b orer
2. Freezing
profiles
3. Cryogenization
Carbon concentration g C kg-1
Soil depth cm
De
Boquilla de Oro
Laguna Chica
Estero Dulce
La Mancha
Santander
Carbon density Kg C m-2
40
b
35
30
a
25
20
15
10
5
0
Marshes
Swamps
Carbon density in different wetlands
Study site
Wetland type
Reference
Marshes
Carbon density
(kgC m-2)
13-29
USA.
Mexico.
Japan
USA.
Mangrove swamps
Mangrove swamps
Marshes and swamps
47.2-82.2
5.73
17.6
Moreno et al. (2002)
Khan et al. (2007)
Bernal & Mitsch (2008)
Costa Rica.
Marshes and swamps
9.7
Bernal & Mitsch (2008)
Australia
Mexico.
Mangrove swamps
Mangrove swamps
9.42
23.16
Mexico.
Mangrove swamps
23.08
Mexico.
Mangrove swamps
1.2-22.2
Coastal plain of the Gulf of
Mexico.
Swamps
Marshes
34.96
25.85
Howe et al. (2009)
Moreno-May et al.
(2010)
Moreno-May et al.
(2010)
Cerón-Bretón et al.
(2011)
This study
This study
Yonghoon et al. (2001)
Soil carbon sequestration in different wetlands
Wetland site
California, USA
Carbon sequestration rate Wetland type
(kgC m-2 yr-1)
0.033
Marshes
Africa
0.48
Marshes
China
0.028-0.44
Swamps
Costa Rica
0.255
Swamp
Ohio, USA.
0.16
Marshes
Ohio, USA
0.47
Swamp
Ohio, USA
0.21
Marshes
Georgia USA.
0.107
Swamp
Florida, USA
0.056
Marshes
Georgia, USA.
0.124
Marshes
Veracruz, Mexico
0.30
0.66
Marsh
Swamp
Reference
Brevik &
Homburg (2004)
Saunders et al.
(2007)
Xiaonan et al.
(2008)
Mitsch et al.
(2010)
Mitsch et al.
(2010)
Bernal & Mitsch
(2012)
Bernal & Mitsch
(2012)
Craft &Casey
(2000)
Craft & Casey
(2000)
Loomis & Craft
(2010)
This study
Carbon concentration g C kg-1
Soil depth cm
ESTERO DULCE
BOQUILLA DE ORO
b
40
Carbon density g C kg-1
35
30
25
a
20
15
10
5
0
FLOODED GRASSLANDS
SWAMPS
Conclusions
 In these tropical region, soil carbon sequestration was
higher in swamps than marshes
 Soil carbon density found in these tropical freshwater
wetlands, indicate that they are important carbon sinks
in the planet
 Carbon density found in flooded grasslands was only
58% of the carbon density found in swamps, indicating
that land use change of swamps decrease the
environmetal service of carbon sequestration.
THANK YOU !!
Funding provided by
Lamberto Aragón
Ranulfo Del Moral
Arith Selene
Ana Patricia Villa
Arizbeth Garduño