Study on the Soil Respiration and Its Components of the Second Rotation Eucalyptus Plantations in Subtropical China

HUANG Xue-man; LIU Shi-rong; YOU Ye-ming

Volume 27 Issue 5

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Study on the Soil Respiration and Its Components of the Second Rotation Eucalyptus Plantations in Subtropical China

1.
Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
2.
Ministry of Education Key Laboratory for Silviculture and Conservation, Beijing Forestry University, Beijing 100083, China

Received Date: 2013-06-28

Abstract

In order to determine the seasonal pattern of respiration and elucidate the contribution of respiration components and their control factors in Eucalyptus plantations, comparative experiments and the trenching plot method with LI-8100 automated CO2 flux system were used to quantify the components of soil respiration in three-4-year-old second rotation pure plantations (PP2) of Eucalyptus and three 4-year-old second rotation mixed Eucalyptus urophylla and Dalbergia odorifera plantations (MP2) in Guangxi Zhuang Autonomous Region, southern China. The results showed that there were similar seasonal dynamics for the respiration and its compoments in both the plantations. The total respiration (RS), heterotrophic respiration (RH), and autotrophic respiration (RR) varied markedly during the year with the highest rates between June to August, and the lowest rates between December to January. The soil temperature was the main factor that affected RS and its components, while there was no significant relationship between soil water content and soil respiration flux. The estimated RS, RR and RH values for PP2 were 1 147.41 g· m-2, 506.72 g·m-2 and 640.69 g·m-2 respectively in average, and the estimated RS, RR and RH values for MP2 were 844.07 g·m-2, 136.87 g·m-2 and 707.21 g· m-2 in average. The estimated RC increased from 56.03% in the PP2 to 83.94% in the MP2. There was significant correlation between litterfall mass, fine root biomass, C/N ratio of litterfall and RS and RR. However, there was just significant relationship between RH and total organic carbon of soil and litterfall.
- Eucalyptus plantation,
- nitrogen-fixing species,
- soil respiration,
- autotrophic respiration,
- heterotrophic respiration

References

[1]	IPCC. Climate Change 2001: The Scientific Basis[M]. Cambridge University Press, Cambridge, UK.,2001.
[2]	Hanson P J, Edwards N T, Garten C T,et al. Separation root and soil microbial contributions to soil respiration: a review of methods and observations[J]. Biogeochemistry, 2000, 48: 115-146.
[3]	Jassal R S, Black T A, Estimating heterotrophic and autotrophic soil respiration using small-area trenched plot technique: theory and practice[J]. Agricultural and Forest Meteorology,2006, 140:193-202.
[4]	Kuzyakov Y, Bol R. Sources and mechanisms of priming effect induced in two grassland soils amended with slurry and sugar [J].Soil Biology and Biochemistry, 2006, 38:747-758.
[5]	Fang C, Moncrieff J B. The dependence of soil CO₂ efflux on temperature[J]. Soil Biology and Biochemistry, 2001, 33:155-165.
[6]	Fang C, Smith P, Moncrieff J B, et al. Similar response of labile and resistant soil organic matter pools to changes in temperature[J]. Nature, 2005, 433:57-59.
[7]	Hartley I P, Heinemeyer A, Evans S P. The effect of soil warming on bulk soil vs. rhizosphere respiration[J]. Global Change Biology, 2007, 13: 2654-2667.
[8]	Subke J A, Inglima I, Cotrufo M F. Trends and methodological impacts in soil CO₂ efflux partitioning: a metaanalytical review[J]. Global Change Biology, 2006, 12: 921-943.
[9]	Trumbore S. Carbon respired by terrestrial ecosystems-recent progress and challenges[J]. Global Change Biology, 2006, 12: 141-153.
[10]	Högberg P, Nordgren A, Buchmann N, et al. Large-scale forest girdling shows that current photosynthesis drives soil respiration[J]. Nature, 2001, 411:789-792.
[11]	Ryan M G, Law B E. Interpreting, measuring, and modeling soil respiration[J]. Biogeochemistry, 2005, 73: 3-27.
[12]	Borken W, Savage K, Davidson E A, et al. Effects of experimental drought on soil respiration and radiocarbon efflux from a temperate forest soil[J]. Global Change Biology, 2006, 12: 177-193.
[13]	Davidson E A, Janssens I. Temperature sensitivity of soil carbon decomposition and feedbacks to climate change[J]. Nature, 2006, 440: 165-173.
[14]	Scott-Denton L E, Rosenstiel T N, Monson R K. Differential controls by climate and substrate over the heterotrophic and rhizospheric components of soil respiration[J]. Global Change Biology, 2006, 12: 205-216.
[15]	Hartley I P, Heinemeyer A, Ineson P. Effects of three years of soil warming and shading on the rate of soil respiration: substrate availability and not thermal acclimation mediates observed response[J]. Global Change Biology, 2007, 3:1761-1770.
[16]	Brüggemann N, Gessler A, Kayler Z, et al. Carbon allocation and carbon isotope fluxes in the plant-soil-atmosphere continuum: a review[J]. Biogeosciences Discussions, 2011, 8: 3619-3695.
[17]	Taneva L, Gonzalez-Meler M A. Distinct patterns in the diurnal and seasonal variability in four components of soil respiration in a temperate forest under free-air CO₂ enrichment[J]. Biogeosciences, 2011, 8:3077-3092.
[18]	Davidson E A, Janssens I A, Luo Y. On the variability of respiration in terrestrial ecosystems: moving beyond Q₁₀[J]. Global Change Biology, 2006, 12:154-164.
[19]	Davidson E A, Verchot L V, Cattanio J H, et al. Effects of soil water content on soil respiration in forests and cattle pastures of eastern Amazonia[J]. Biogeochemistry, 2000, 48:53-69.
[20]	Raich J W, Tufekcioglu A. Vegetation and soil respiration: Correlation and controls[J]. Biogeochemistry, 2000, 48:71-90.
[21]	Curiel-Yuste J, Janssens I A, Carrara A,et al. Annual Q₁₀of soil respiration reflects plant phenological patterns as well as temperature sensitivity[J]. Global Change Biology, 2004, 10:161-169.
[22]	Rey A, Pegoraro E, Tedeschi V,et al. Annual variation in soil respiration and its components in a coppice oak forest in Central Italy[J]. Global Change Biology,2002, 8:851-866.
[23]	Kirschbaum M U F. Will changes in soil organic carbon act as a positive or negative feedback on global warming?[J]. Biogeochemistry, 2000, 48: 21-51.
[24]	Janssens I A, Lankreijer H, Matteucci G, et al. Productivity overshadows temperature in determining soil and ecosystem respiration across European forests[J]. Global Change Biology, 2001, 7:269-278.
[25]	Hibbard K A, Law B E, Reichstein M, et al. An analysis of soil respiration across northern hemisphere temperate ecosystems[J]. Biogeochemistry, 2005, 73:29-70.
[26]	Martin J G, Bolstad P V. Soil respiration in temperate forests: influence of soil moisture and site biological, chemical and physical characteristics[J]. Biogeochemistry, 2005, 73: 149-182.
[27]	Ryan M G,Law B E. Interpreting, measuring, and modeling soil respiration[J]. Biogeochemistry, 2005, 73: 3-27.
[28]	Bahn M, Schmitt M, Siegwolf R, et al. Does photosynthesis affect grassland soil-respired CO₂ and its carbon isotope composition on a diurnal time scale?[J]. New Phytologist, 2009, 182: 451-460.
[29]	Qi S X. Eucalyptus in China[M]. Beijing, China Forestry Publishing House. 2002, 517.
[30]	Binkley D, Senock R, Bird S,et al. Twenty years ofstand development in pure and mixed stands of Eucalyptus saligna and nitrogen-fixing Facaltaria mollucana[J]. Forest Ecology and Management,2003, 182:93-102.
[31]	Bauhus J, Khanna P K, Menden N. Aboveground and belowground interactions in mixed plantations of Eucalyptus globulus and Acacia mearnsii[J].Canadian Journal of Ferest Research, 2000, 30:1886-1894.
[32]	Bauhus J, van Winden A P, Nicotra A B. Above-ground interactions and productivity in mixed-species plantations of Acacia mearnsii and Eucalyptus globulus[J]. Canadian Journal of Ferest Research, 2004, 34: 686-694.
[33]	Hendricks J J, Hendrick R L, Wilson C A, et al. Assessing the Patterns and Controls of Fine Root Dynamics: an Empirical Test and Methodological Review [J]. Journal of Ecology, 2006, 94: 40-57.
[34]	Nelson D W, Sommers L E. Total Carbon, Organic Carbon, and Organic Matter[M]//Methods of Soil Analysis. American Society of Agronomy Inc, Madison, Wisconsin, 1996, 961-1010.
[35]	Bremner J M. Nitrogen-total[M]//Sparks D L. Methods of Soil Analysis [M]. SSSA Book Ser, Madison, Wisconsin, 1996, 1085-1122.
[36]	Bond-Lamberty B, Wang C K, Gower S T. A global relationship between the heterotrophic and autotrophic components of soil respiration?[J]. Global Change Biology. 2004a, 10: 1756-1766.
[37]	Lee M S, Nakane K, Nakatsubo T,et al. Seasonal changes in the contribution of root respiration to total soil respiration in a cool-temperate deciduous forest[J]. Plant Soil, 2003, 255:311-318.
[38]	Forrester D I, Bauhus J, Khanna P K. Growth dynamics in a mixed-species plantation of Eucalyptus globulus and Acacia mearnsii[J], Forest Ecology and Management, 2004, 193:81-95.
[39]	Forrester D I, Bauhus J, Cowie A L, et al. Mixed-species plantations of Eucalyptus with nitrogen fixing trees: a review[J]. Forest Ecology and Management, 2006, 233: 211-230.
[40]	Matteucci G, Dore S, Rebmann C, et al. Soil respiration in beech and spruce forests in Europe: trends, controlling factors, annual budgets and implications for the ecosystem carbon balance[M]//Schulze.Carbon and Nitrogen Cycling in European Forest Ecosystems. Springer-Verlag, Berlin. 2000, 217-236.
[41]	Tang J, Baldocchi D D. Spatial-temporal variation in soil respiration in an oak-grass savanna ecosystem in California and its partitioning into autotrophic and heterotrophic components[J]. Biogeochemistry, 2005, 73:183-207.
[42]	Takahashi A, Hiyama T, Takahashi H A, et al. Analytical estimation of the vertical distribution of CO₂ production within soil application to a Japanese temperate forest[J]. Agricultural and Forest Meteorology, 2004, 126: 223-235.
[43]	张东秋,石培礼,张宪洲. 土壤呼吸主要影响因素的研究进展[J].地球科学进展, 2005, 20(7): 778-785.
[44]	杨玉盛,陈光水,董彬,等. 格氏拷天然林和人工林土坡呼吸对干湿交替的响应[J].生态学报, 2004, 24(5): 953-958.
[45]	刘世荣,李春阳. 落叶松人工养分循环过程与潜在地力衰退趋势的研究[J]. 东北林业大学学报. 1993, 21(2):19-24.
[46]	李香真,曲秋皓.蒙古高原草原土壤微生物量碳氮特征[J].土壤学报, 2002, 39(l):97-104.
[47]	Raich J W, Tufekciogul A. Vegetation and soil respiration: correlations and controls[J]. Biogeochemistry, 2000, 48:71-90.
[48]	Priess J A, Koning G H, Veldkamp A. Assessment of interactions between land use change and carbon and nutrient fluxes in Ecuador[J]. Agriculture Ecosystems & Environment, 2001, 85: 269-279.
[49]	Xu M, Qi Y. Soil-surface CO₂ efflux and its spatial and temporal variations in a young ponderosa pine plantation in northern California[J]. Global Change Biology, 2001, 7:667-677.
[50]	Kang S Y, Doh S, Lee D, et al. Topgraphic and climatic controls on soil respiration in six temperate mixed-harwood forest slopes, Korea[J]. Global Change Biology, 2003, 9:1427-1437.
[51]	Scott-Denton L E, Rosenstiel T N, Monson R K. Differential controls by climate and substrate over the heterotrophic and rhizospheric components of soil respiration[J]. Global Change Biology, 2006, 12: 205-216.
[52]	Frank A B, Liebig M A, Hanson J D. Soil carbon dioxide fluxes in northern semiarid grasslands[J]. Soil Biology and Biochemistry, 2002, 34:1235-1241.
[53]	张小全, 吴可红.森林细根生产和周转研究[J], 林业科学, 2001, 37(3):126-138.
[54]	Chapman S J, Thurlow M. The influence of climate on CO₂and CH₄ emission from organic soils[J]. Agricultural and Forest Meteorology, 1996, 79:205-217.
[55]	耿远波,章申,董云社,等.草原土坡的碳氮含量及其与温室气体通量的相关性[J].地理学报,2001, 56(1): 44-53.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Study on the Soil Respiration and Its Components of the Second Rotation Eucalyptus Plantations in Subtropical China

1. Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China

2. Ministry of Education Key Laboratory for Silviculture and Conservation, Beijing Forestry University, Beijing 100083, China

Received Date: 2013-06-28

Abstract: In order to determine the seasonal pattern of respiration and elucidate the contribution of respiration components and their control factors in Eucalyptus plantations, comparative experiments and the trenching plot method with LI-8100 automated CO2 flux system were used to quantify the components of soil respiration in three-4-year-old second rotation pure plantations (PP2) of Eucalyptus and three 4-year-old second rotation mixed Eucalyptus urophylla and Dalbergia odorifera plantations (MP2) in Guangxi Zhuang Autonomous Region, southern China. The results showed that there were similar seasonal dynamics for the respiration and its compoments in both the plantations. The total respiration (RS), heterotrophic respiration (RH), and autotrophic respiration (RR) varied markedly during the year with the highest rates between June to August, and the lowest rates between December to January. The soil temperature was the main factor that affected RS and its components, while there was no significant relationship between soil water content and soil respiration flux. The estimated RS, RR and RH values for PP2 were 1 147.41 g· m-2, 506.72 g·m-2 and 640.69 g·m-2 respectively in average, and the estimated RS, RR and RH values for MP2 were 844.07 g·m-2, 136.87 g·m-2 and 707.21 g· m-2 in average. The estimated RC increased from 56.03% in the PP2 to 83.94% in the MP2. There was significant correlation between litterfall mass, fine root biomass, C/N ratio of litterfall and RS and RR. However, there was just significant relationship between RH and total organic carbon of soil and litterfall.

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Reference (55)

[1]	IPCC. Climate Change 2001: The Scientific Basis[M]. Cambridge University Press, Cambridge, UK.,2001.
[2]	Hanson P J, Edwards N T, Garten C T,et al. Separation root and soil microbial contributions to soil respiration: a review of methods and observations[J]. Biogeochemistry, 2000, 48: 115-146.
[3]	Jassal R S, Black T A, Estimating heterotrophic and autotrophic soil respiration using small-area trenched plot technique: theory and practice[J]. Agricultural and Forest Meteorology,2006, 140:193-202.
[4]	Kuzyakov Y, Bol R. Sources and mechanisms of priming effect induced in two grassland soils amended with slurry and sugar [J].Soil Biology and Biochemistry, 2006, 38:747-758.
[5]	Fang C, Moncrieff J B. The dependence of soil CO₂ efflux on temperature[J]. Soil Biology and Biochemistry, 2001, 33:155-165.
[6]	Fang C, Smith P, Moncrieff J B, et al. Similar response of labile and resistant soil organic matter pools to changes in temperature[J]. Nature, 2005, 433:57-59.
[7]	Hartley I P, Heinemeyer A, Evans S P. The effect of soil warming on bulk soil vs. rhizosphere respiration[J]. Global Change Biology, 2007, 13: 2654-2667.
[8]	Subke J A, Inglima I, Cotrufo M F. Trends and methodological impacts in soil CO₂ efflux partitioning: a metaanalytical review[J]. Global Change Biology, 2006, 12: 921-943.
[9]	Trumbore S. Carbon respired by terrestrial ecosystems-recent progress and challenges[J]. Global Change Biology, 2006, 12: 141-153.
[10]	Högberg P, Nordgren A, Buchmann N, et al. Large-scale forest girdling shows that current photosynthesis drives soil respiration[J]. Nature, 2001, 411:789-792.
[11]	Ryan M G, Law B E. Interpreting, measuring, and modeling soil respiration[J]. Biogeochemistry, 2005, 73: 3-27.
[12]	Borken W, Savage K, Davidson E A, et al. Effects of experimental drought on soil respiration and radiocarbon efflux from a temperate forest soil[J]. Global Change Biology, 2006, 12: 177-193.
[13]	Davidson E A, Janssens I. Temperature sensitivity of soil carbon decomposition and feedbacks to climate change[J]. Nature, 2006, 440: 165-173.
[14]	Scott-Denton L E, Rosenstiel T N, Monson R K. Differential controls by climate and substrate over the heterotrophic and rhizospheric components of soil respiration[J]. Global Change Biology, 2006, 12: 205-216.
[15]	Hartley I P, Heinemeyer A, Ineson P. Effects of three years of soil warming and shading on the rate of soil respiration: substrate availability and not thermal acclimation mediates observed response[J]. Global Change Biology, 2007, 3:1761-1770.
[16]	Brüggemann N, Gessler A, Kayler Z, et al. Carbon allocation and carbon isotope fluxes in the plant-soil-atmosphere continuum: a review[J]. Biogeosciences Discussions, 2011, 8: 3619-3695.
[17]	Taneva L, Gonzalez-Meler M A. Distinct patterns in the diurnal and seasonal variability in four components of soil respiration in a temperate forest under free-air CO₂ enrichment[J]. Biogeosciences, 2011, 8:3077-3092.
[18]	Davidson E A, Janssens I A, Luo Y. On the variability of respiration in terrestrial ecosystems: moving beyond Q₁₀[J]. Global Change Biology, 2006, 12:154-164.
[19]	Davidson E A, Verchot L V, Cattanio J H, et al. Effects of soil water content on soil respiration in forests and cattle pastures of eastern Amazonia[J]. Biogeochemistry, 2000, 48:53-69.
[20]	Raich J W, Tufekcioglu A. Vegetation and soil respiration: Correlation and controls[J]. Biogeochemistry, 2000, 48:71-90.
[21]	Curiel-Yuste J, Janssens I A, Carrara A,et al. Annual Q₁₀of soil respiration reflects plant phenological patterns as well as temperature sensitivity[J]. Global Change Biology, 2004, 10:161-169.
[22]	Rey A, Pegoraro E, Tedeschi V,et al. Annual variation in soil respiration and its components in a coppice oak forest in Central Italy[J]. Global Change Biology,2002, 8:851-866.
[23]	Kirschbaum M U F. Will changes in soil organic carbon act as a positive or negative feedback on global warming?[J]. Biogeochemistry, 2000, 48: 21-51.
[24]	Janssens I A, Lankreijer H, Matteucci G, et al. Productivity overshadows temperature in determining soil and ecosystem respiration across European forests[J]. Global Change Biology, 2001, 7:269-278.
[25]	Hibbard K A, Law B E, Reichstein M, et al. An analysis of soil respiration across northern hemisphere temperate ecosystems[J]. Biogeochemistry, 2005, 73:29-70.
[26]	Martin J G, Bolstad P V. Soil respiration in temperate forests: influence of soil moisture and site biological, chemical and physical characteristics[J]. Biogeochemistry, 2005, 73: 149-182.
[27]	Ryan M G,Law B E. Interpreting, measuring, and modeling soil respiration[J]. Biogeochemistry, 2005, 73: 3-27.
[28]	Bahn M, Schmitt M, Siegwolf R, et al. Does photosynthesis affect grassland soil-respired CO₂ and its carbon isotope composition on a diurnal time scale?[J]. New Phytologist, 2009, 182: 451-460.
[29]	Qi S X. Eucalyptus in China[M]. Beijing, China Forestry Publishing House. 2002, 517.
[30]	Binkley D, Senock R, Bird S,et al. Twenty years ofstand development in pure and mixed stands of Eucalyptus saligna and nitrogen-fixing Facaltaria mollucana[J]. Forest Ecology and Management,2003, 182:93-102.
[31]	Bauhus J, Khanna P K, Menden N. Aboveground and belowground interactions in mixed plantations of Eucalyptus globulus and Acacia mearnsii[J].Canadian Journal of Ferest Research, 2000, 30:1886-1894.
[32]	Bauhus J, van Winden A P, Nicotra A B. Above-ground interactions and productivity in mixed-species plantations of Acacia mearnsii and Eucalyptus globulus[J]. Canadian Journal of Ferest Research, 2004, 34: 686-694.
[33]	Hendricks J J, Hendrick R L, Wilson C A, et al. Assessing the Patterns and Controls of Fine Root Dynamics: an Empirical Test and Methodological Review [J]. Journal of Ecology, 2006, 94: 40-57.
[34]	Nelson D W, Sommers L E. Total Carbon, Organic Carbon, and Organic Matter[M]//Methods of Soil Analysis. American Society of Agronomy Inc, Madison, Wisconsin, 1996, 961-1010.
[35]	Bremner J M. Nitrogen-total[M]//Sparks D L. Methods of Soil Analysis [M]. SSSA Book Ser, Madison, Wisconsin, 1996, 1085-1122.
[36]	Bond-Lamberty B, Wang C K, Gower S T. A global relationship between the heterotrophic and autotrophic components of soil respiration?[J]. Global Change Biology. 2004a, 10: 1756-1766.
[37]	Lee M S, Nakane K, Nakatsubo T,et al. Seasonal changes in the contribution of root respiration to total soil respiration in a cool-temperate deciduous forest[J]. Plant Soil, 2003, 255:311-318.
[38]	Forrester D I, Bauhus J, Khanna P K. Growth dynamics in a mixed-species plantation of Eucalyptus globulus and Acacia mearnsii[J], Forest Ecology and Management, 2004, 193:81-95.
[39]	Forrester D I, Bauhus J, Cowie A L, et al. Mixed-species plantations of Eucalyptus with nitrogen fixing trees: a review[J]. Forest Ecology and Management, 2006, 233: 211-230.
[40]	Matteucci G, Dore S, Rebmann C, et al. Soil respiration in beech and spruce forests in Europe: trends, controlling factors, annual budgets and implications for the ecosystem carbon balance[M]//Schulze.Carbon and Nitrogen Cycling in European Forest Ecosystems. Springer-Verlag, Berlin. 2000, 217-236.
[41]	Tang J, Baldocchi D D. Spatial-temporal variation in soil respiration in an oak-grass savanna ecosystem in California and its partitioning into autotrophic and heterotrophic components[J]. Biogeochemistry, 2005, 73:183-207.
[42]	Takahashi A, Hiyama T, Takahashi H A, et al. Analytical estimation of the vertical distribution of CO₂ production within soil application to a Japanese temperate forest[J]. Agricultural and Forest Meteorology, 2004, 126: 223-235.
[43]	张东秋,石培礼,张宪洲. 土壤呼吸主要影响因素的研究进展[J].地球科学进展, 2005, 20(7): 778-785.
[44]	杨玉盛,陈光水,董彬,等. 格氏拷天然林和人工林土坡呼吸对干湿交替的响应[J].生态学报, 2004, 24(5): 953-958.
[45]	刘世荣,李春阳. 落叶松人工养分循环过程与潜在地力衰退趋势的研究[J]. 东北林业大学学报. 1993, 21(2):19-24.
[46]	李香真,曲秋皓.蒙古高原草原土壤微生物量碳氮特征[J].土壤学报, 2002, 39(l):97-104.
[47]	Raich J W, Tufekciogul A. Vegetation and soil respiration: correlations and controls[J]. Biogeochemistry, 2000, 48:71-90.
[48]	Priess J A, Koning G H, Veldkamp A. Assessment of interactions between land use change and carbon and nutrient fluxes in Ecuador[J]. Agriculture Ecosystems & Environment, 2001, 85: 269-279.
[49]	Xu M, Qi Y. Soil-surface CO₂ efflux and its spatial and temporal variations in a young ponderosa pine plantation in northern California[J]. Global Change Biology, 2001, 7:667-677.
[50]	Kang S Y, Doh S, Lee D, et al. Topgraphic and climatic controls on soil respiration in six temperate mixed-harwood forest slopes, Korea[J]. Global Change Biology, 2003, 9:1427-1437.
[51]	Scott-Denton L E, Rosenstiel T N, Monson R K. Differential controls by climate and substrate over the heterotrophic and rhizospheric components of soil respiration[J]. Global Change Biology, 2006, 12: 205-216.
[52]	Frank A B, Liebig M A, Hanson J D. Soil carbon dioxide fluxes in northern semiarid grasslands[J]. Soil Biology and Biochemistry, 2002, 34:1235-1241.
[53]	张小全, 吴可红.森林细根生产和周转研究[J], 林业科学, 2001, 37(3):126-138.
[54]	Chapman S J, Thurlow M. The influence of climate on CO₂and CH₄ emission from organic soils[J]. Agricultural and Forest Meteorology, 1996, 79:205-217.
[55]	耿远波,章申,董云社,等.草原土坡的碳氮含量及其与温室气体通量的相关性[J].地理学报,2001, 56(1): 44-53.

Study on the Soil Respiration and Its Components of the Second Rotation Eucalyptus Plantations in Subtropical China

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通讯作者: 陈斌, bchen63@163.com

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Study on the Soil Respiration and Its Components of the Second Rotation Eucalyptus Plantations in Subtropical China

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