Microsoft Word - 6--王蒙_new_.doc

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1 土壤 (Soils), 2014, 46(6): 杭州湾滨海湿地 CH 4 排放通量的研究 * ( ) 藨 CH 4 0 ~ 30 cm CH 4 CH 4 CH 4 藨 CH 4 CH 4 CH 4 (1.589 mg/(m 2 h))> (0.722 mg/(m 2 h))> 藨 (0.218 mg/(m 2 h))> ( mg/(m 2 h)) CH 4 0 ~ 30 cm CH 4 (0.050 μg/(g d)> (0.042 μg/(g d))> (0.030 μg/(g d)> 藨 (0.027 μg/(g d)) CH 4 ( 0 ~ 5 cm ) CH 4 CH 4 10 ~ 20 cm 5 ~ 10 cm 3 0 ~ 5 cm CH 4 CH 4 藨 5 ~ 10 cm CH 4 20 ~ 30 cm CH 4 ph CH 4 CH 4 CH 4 Q149 CH 4 CO 2 CO 2 21 [1] CH 4 CH % [2] CH 4 CH 4 21% [3] CH 4 [4 6] [7] [8] [9] CH 4 [10] [11] [12] [13] CH 4 CH 4 CH 4 CH mm h 244 ( 1) 12 km ' ~ 30 19' N 121 5' ~ E ((bare mudflat BM) 藨 (Scirpus mariqueter SM) (Phragmites australis PA) (Spartina alterniflora SA) 4 ( ) ( ) (2012 BAC13B02-2) * (hangzhoubay@126.com) (1988 ) wangmngwm0416@126.com

1004 46 3 1 25 m 藨 53% 80% 82% 0.3 1.9 2.35 m 460.23 4 237 3 786.43 g/m 2 图 1 研究区地理位置 Fig. 1 Location of the study area 1.2 1.2.1 CH 4 ( 1 m ) 5 mm 0.5 0.

2 m 藨 53% 80% 82% m g/m 2 图 1 研究区地理位置 Fig. 1 Location of the study area CH 4 ( 1 m ) 5 mm m 1/2 (0.5 L ) m 15 cm 3 1 cm 3 cm 2 cm 30 min 1 10 min 1 30 min 4 5 cm 10 cm 10 cm 0 ~ 30 cm 3 10 cm 0 ~ 30 cm CH ~ 5 5 ~ ~ ~ 30 cm CH 4 [14] CH 4 10 g 150 ml ~ 20 min 3 ~ 5 min ml CH 4 Agilent 6820 FID N 2 30 ml/min H 2 30 ml/min 400 ml/min CH 4 FID Agilent /100 porapakq 2 m N 2 40 ml/min H 2 40 ml/min 400 ml/min ph ph [15] CH 4 [16] Mdc 273 F = H (1) V dt T F CH 4 (mg/(m 2 h)) M CH 4 (g) V 1 mol CH 4 (L) dc dt CH 4 H (m) T ( ) CH 4 [7] dc VH MW Tst P = (2) dt W MV ( T + T ) S st P CH 4 (μg/(g( ) d)) dc dt CH 4 (mg/(g d)) V H (L) W S (g)

3 6 CH 表 1 杭州湾湿地土壤基本理化性质 Table 1 Soil basic physical and chemical properties in Hangzhou Bay wetland (cm) ph (ms/cm) (g/kg) (g/kg) (g/kg) BM 0 ~ ± 0.10 a 1.70 ± 0.38 a ± 13.4 a 6.52 ± 1.03 b 0.53 ± 0.06 b 10 ~ ± 0.13 a 1.33 ± 0.42 a ± 5.44 a 6.44 ± 1.42 ab 0.49 ± 0.07 b 20 ~ ± 0.10 a 1.33 ± 0.18 a ± 7.75 a 6.44 ± 1.35 ab 0.52 ± 0.10 b SM 0 ~ ± 0.09 ab 1.97 ± 0.45 a ± 64.4 a 5.97 ± 0.78 b 0.51 ± 0.07 b 10 ~ ± 0.09 a 1.61 ± 0.45 a ± 30.0 a 5.79 ± 1.04 ab 0.47 ± 0.09 b 20 ~ ± 0.11 ab 1.51 ± 0.42 a ± 21.1 b 5.22 ± 0.87 b 0.46 ± 0.08 b PA 0 ~ ± 0.19 a 1.61 ± 0.59 a ± 32.5 a 5.89 ± 0.97 b 0.51 ± 0.03 b 10 ~ ± 0.13 a 1.20 ± 0.34 a ± 49.9 a 5.34 ± 0.85 b 0.48 ± 0.04 b 20 ~ ± 0.13 a 1.10 ± 0.28 a ± 38.8 b 5.62 ± 0.97 ab 0.50 ± 0.07 b SA 0 ~ ± 0.08 b 1.74 ± 0.68 a ± 65.2 a 7.95 ± 0.98 a 0.72 ± 0.10 a 10 ~ ± 0.08 b 1.35 ± 0.49 a ± 29.3 ab 6.91 ± 1.07 a 0.65 ± 0.08 a 20 ~ ± 0.07 b 1.35 ± 0.41 a ± 57.1 a 6.94 ± 1.18 a 0.65 ± 0.09 a P<0.05 MW CH 4 (g) MV 1 mol (L) T ( ) T st (K) 1.3 Excel SPSS18.0 LSD (P<0.05) Pearson CH 4 CH 4 2 BM CH 4 CH ~ mg/(m 2 h) mg/(m 2 h) CH SM CH 4 CH ~ mg/(m 2 h) mg/(m 2 h) CH CH 4 > > PA CH 4 CH ~ mg/(m 2 h) mg/(m 2 h) CH CH 4 > > SA CH 4 CH ~ mg/(m 2 h) mg/(m 2 h) CH 4 CH CH 4 > > CH 4 SA >PA >SM >BM 4 CH 4 (P<0.05) ( CH 4 (P<0.05)) 图 2 杭州湾湿地 CH 4 排放通量的季节变化 Fig. 2 Seasonal variations of CH 4 emission fluxes in Hangzhou Bay wetland CH 4 (P<0.05) 2.2 CH 4 3 CH 4 3 BM 10 ~ 20 cm CH μg/(g d) 5 ~ 10 cm μg/(g d) μg/(g d) 10 ~ 20 cm CH 4 0 ~ 5 cm 20 ~ 30 cm CH 4 5 ~ 10 cm CH 4 SM PA CH 4 0 ~ 5 cm μg/(g d) 5 ~ 10 cm μg/(g d) μg/(g d) SM 0 ~ 5 cm 10 ~ 20 cm 5 ~ 10 cm 20 ~ 30 cm CH 4

4 ( CH 4 (P<0.05)) 图 3 杭州湾湿地不同植被类型下的土壤 CH 4 产生潜力 Fig. 3 CH 4 production potentials of soil under different vegetation types in Hangzhou Bay wetland PA CH 4 SA CH 4 0 ~ 5 cm 20 ~ 30 cm μg/(g d) μg/(g d) 5 ~ 10 cm 10 ~ 20 cm SA 0 ~ 5 cm CH 4 CH 4 SA >PA >BM >SM BM SM PA SA (P<0.05) SM PA SA CH 4 BM CH CH 4 2 ph CH 4 (P<0.05) CH 4 (P<0.05) (P<0.01) CH cm CH 4 表 2 CH 4 排放通量与环境因子的相关关系 Table 2 Correlations between CH 4 emission flux and environment factors CH 4 ph 5 cm 10 cm CH 4 1 ph 0.454* * * ** ** * 0.788** 1 5 cm cm * ** 1 * P<0.05 ** P< CH 4 SM PA SA CH 4 [12,17 18] CH 4 CH 4 CH 4 [19] CH 4 [20] CH 4 [21] CH 4 [22] SM PA SA CH 4 CH 4 [23 24] CH 4 [25] CH 4 CH 4 [17] CH 4 CH 4 [12] CH 4 CH 4 [26] CH 4 [26 27] CH 4 [25] CH 4 BM CH 4

5 6 CH [28] BM CH 4 CH 4 CH 4 CH 4 CH 4 CH 4 CH 4 CH 4 CH 4 CH CH 4 CH 4 SA > PA >SM >BM CH 4 CH 4 [29] PA SA CH 4 [30] PA SA CH 4 CH 4 SM CH 4 CH 4 CH 4 CH 4 [31] CH 4 CH 4 BM CH 4 CH 4 CH 4 BM CH 4 PA SA CH CH 4 CH 4 CH 4 CH 4 CH 4 [29] 3 0 ~ 5 cm CH 4 0 ~ 5 cm CH 4 9 CH 4 CH 4 [32] BM CH 4 [33] CH 4 BM CH 4 BM CH 4 CH 4 Dasselaar Oenemaa [4] 0 ~ 5 cm CH 4 70% CH 4 Avery [34] 0 ~ 10 cm CH 4 Bergman [5] 5 ~ 10 cm CH CH 4 CH 4 藨 CH 4 CH 4 > > 藨 > ph CH 4 0 ~ 30 cm CH 4 > > > 藨 CH 4 CH 4 [1] IPCC. Climate Change 2007: The Physical Science Basis[M]. New York: Cambridge University Press, 2007 [2] Kapoor D Sources and Sinks of Methane: Future Concentrations and Impact on Global Warming(Master s thesis) [D]. Oakland: University of Pittsburgh, 2005 [3] Bartlett KB, Harriss RC. Review and assessment of methane emissions from wetland[j]. Chemosphere,1993,26 (1/2/3/4): [4] Dasselaar A, Oenemaa O. Methane production and carbon mineralization of size and density fractions of peat soils[j]. Soil Biology and Biochemistry, 1999, 31(6): [5] Bergman I, Klarqvist M, Nilsson M. Seasonal variation in rates of methane production from peat of various botanical origins: Effects of temperature and substrate quality[j]. FEMS Microbiology Ecology, 2000, 33(3):

6 [6] Putkinen A, Juottonen H, Juutinen S, Tuittila ES, Fritze H, Yrjälä K. Archaeal rrna diversity and methane production in deep boreal peat[j]. FEMS Microbiology Ecology, 2009,70(1): [7] Wassmann R, Neue HU, Bueno C, Lantin RS, Alberto MCR, Buendia LV, Bronson K, Papen H, Renenberg H. Methane production capacities of different rice soils derived from inherent and exogenous substrates[j]. Plant and Soil,1998, 203(2): [8] Sutton-Grier AE, Megonigal JP. Plant species traits regulate methane production in freshwater wetland soils[j].soil Biology and Biochemistry, 2011,43(2): [9] Gonsalves MJ, Fernandes CEG, Fernandes SO, Kirchman DL, Bharathi PAL. Effects of composition of labile organic matter on biogenic production of methane in the coastal sediments of the Arabian Sea[J]. Environmental Monitoring and Assessment, 2011, 182(1/2/3/4): [10],,,,. CH 4 N 2 O [J]., 2003, 14(11): [11],,,,,. CH 4 [J]., 2004, 18(3): [12],,,,. [J]., 2009, 29(1): [13],,. CH 4 [J]., 2000, 24(3): [14] Yuan JJ, Ding WX, Liu DY, Xiang J, Lin YX. Methane production potential and methanogenic archaea community dynamics along the Spartina alterniflora invasion chronosequence in a coastal salt marsh[j]. Applied Microbiology and Biotechnology, 2014, 98(4): [15]. [M]. :, 2000: [16],,. CH 4 [J]., 2003, 1(1): [17] Duan XN, Wang XK, Mu Y, Ouyang ZY. Seasonal and diurnal variations in methane emissions from Wuliangsu Lake in arid regions of China[J]. Atmospheric Environment, 2005, 39(25): [18] 祎,,,,. [J]., 2011, 22(5): [19] Schimel JP, Gulledge J. Microbial community structure and global trace gases[j]. Global Change Biology, 1998, 4(7): [20],,,,,. [J]., 2006, 12(5): [21],,. [J]., 2005, 25(12): [22] Ding WX, Cai ZC, Wang DX. Preliminary budget of methane emissions from natural wetlands in China [J]. Atmospheric Environment, 2004, 38(5): [23],. [J]., 2003, 14(4): [24],,. [J]., 2007, 16(6): [25] Kohl JG, Henze R, Kühl H. Evaluation of the ventilation resistance to convective gas-flow in the rhizomes of natural reed beds of Phragmites australis (Cav.) Trin.ex Steud[J]. Aquatic Botany, 1996, 54(2/3): [26] Minoda T, Kimura M, Wada E. Photosynthates as dominant source of CH 4 and CO 2 in soil water and CH 4 emitted to the atmosphere from paddy fields[j]. Journal of Geophysical Research: Atmospheres, 1996,101(D15): [27] Chanton JP, Whiting GJ,Showers WJ, Crill PM. Methane flux from Peltandra virginica: Stable isotope tracing and chamber effects[j]. Global Biogeochemical Cycles, 1992, 6(1): [28],,,. CO 2 CH 4 N 2 O [J]., 2010, 29(5): [29]. ( )[D]. :, 2003 [30],. CH 4 [J]., 2003, 14(8): [31],,. CH 4 [J]., 2008, 45(1): [32],,,,,. [J]., 2012, 10(4): [33]. [D]. :, 2010 [34] Avery GB, Shannon RD,White JR,Martens CS,Alperin MJ.Controls on methane production in a tidal freshwater estuary and a peatland: Methane production via acetate fermentation and CO 2 reduction[j]. Biogeochemistry, 2003, 62(1): 19 37

7 6 CH Study on CH 4 Emission Fluxes in Hangzhou Bay Coastal Wetland WANG Meng, WU Ming *, SHAO Xue-xin, SHENG Xuan-cai (Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Wetland Ecosystem Research Station of Hangzhou Bay, State Forestry Administration, Fuyang, Zhejiang , China) Abstract: CH 4 emission fluxes from communities of Scirpus mariqueter, Phragmites australis, Spartina alterniflora and bare mudflat in Hangzhou Bay coastal wetland were monitored in situ using the static chamber-gas chromatography method from April to September of CH 4 production potentials of the 0 30 cm soil depth from the wetlands were also measured by the indoor anaerobic incubation method. The results indicated that there were remarkable seasonal variations of CH 4 emission fluxes for all the studied wetlands during the observation period. Overall, the bare mudflat wetland was an absorption source of CH 4, and the CH 4 emission flux was higher in spring than that in summer. The other wetlands were emission sources of CH 4. The CH 4 emission flux was higher in summer than in spring and autumn in all the wetlands with vegetation. The average CH 4 emission flux was mg/(m 2 h) for the S. alterniflora wetland, mg/(m 2 h) for the P. australis wetland, mg/(m 2 h) for the S.mariqueter wetland and mg/(m 2 h) for the bare mudflat wetland. CH 4 emission flux was higher from the S. alterniflora wetland than any of the other wetlands in all the months. The average CH 4 production potential from 0 30 cm soil depth from all the studied wetlands was μg/(g d) for the S. alterniflora wetland, μg/(g d) for the P. australis wetland, μg/(g d) for the bare mudflat wetland and μg/(g d) for the S.mariqueter wetland. CH 4 production potential of soil from the S.alterniflora wetland was significantly higher than those of the other wetlands among all soil layers (except for 0 5 cm layer). In the bare mudflat wetland, the highest and lowest values of CH 4 production potential were found in the cm and 5 10 cm soil layers, and no obvious spatial vertical changing trend was detected in all the soil layers. Generally, the CH 4 production potential in the three wetlands with vegetation decreased with soil layer depths with the largest value in the 0 5 cm soil layer. The lowest CH 4 production potential was found in the cm soil layer for the S. alterniflora wetland, the 5 10 cm soil layer for the P. australis wetland and the S. mariqueter wetland. Soil ph, soil organic carbon and total nitrogen were the important factors affecting the CH 4 emission significantly in all of the wetlands studied. Key words: Hangzhou Bay wetland, CH 4 emission flux, CH 4 production potential, Soil

mm 400 mm 15 mm EOF mm/10a Fig. 1 Distributions

mm 400 mm 15 mm EOF mm/10a Fig. 1 Distributions 7 2 2011 3 ADVANCES IN CLIMATE CHANGE RESEARCH Vol. 7 No. 2 March 2011 1673-1719 (2011) 02-0097-07 1961 2007 77 5 5 6 2 3 8 11 1980 1980 1990 2015 8 11 P426.6 A 7.86% 4 50 0.35 5 6 19 7 8 9 1 1906 2005

Microsoft Word - 6--王 蒙_new_.doc

Microsoft Word - 6--王蒙_new_.doc