土壤呼吸的温度敏感性和适应性研究进展

doi:10.11849/zrzyxb.2011.10.017

摘要/Abstract

摘要： 土壤呼吸的温度敏感性和适应性是影响生态系统碳、氮循环的两个关键指标。论文综述了土壤呼吸对温度变化响应的最新研究进展和存在的问题,指出土壤有机质的质量和水溶性碳含量、土壤微生物种群结构和酶活性等因素是影响土壤呼吸的温度敏感性和适应性的主要因素。这些因素对土壤呼吸温度敏感性和适应性影响的机理不同,土壤呼吸的温度敏感性主要受上述因素的状态影响,而土壤呼吸的温度适应性则主要取决于上述因素的变化过程。例如平均温度、微生物生物量、呼吸底物质量和酶活性是影响土壤呼吸温度敏感性的重要因素,而温度的变化幅度、微生物种群结构变化、呼吸底物有效性和酶的最适温度的改变则影响土壤呼吸对温度的适应性。鉴于土壤呼吸的温度敏感性和适应性是两个密切相关的生物学过程指标,建议在陆地生态系统碳循环的研究中综合考虑这两个过程的交互作用。

关键词: 有机质分解, 土壤微生物, 有机质质量, 土壤酶活性, 温度

Abstract: The temperature sensitivity and adaptability of soil respiration are the two key processes in the understanding of terrestrial ecosystem carbon and nitrogen cycle. Recently a growing body of literature sheds new light on the importance of the temperature sensitivity and adaptation of soil respiration in understanding terrestrial carbon cycling. It has been well known that small changes in Q₁₀ value will have great influence on soil CO₂ efflux, due to its nonlinear response to temperature, while the adaptation of soil biological processes could greatly reduce the extend of feedback between temperature and soil CO₂ efflux. In this paper, we reviewed recent advances and hotspots in temperature sensitivity and adaptability of soil respiration and pointed out the limitations in previous studies. The overall studies showed that there are three types of adaptation mechanisms and two kinds of temperature sensitivity theory. The adaptation mechanisms can be defined by combine considering basal respiration and its temperature sensitivity. Soil organic matter, microorganisms and enzyme are factors that have great influence on the temperature sensitivity and adaptability of soil respiration; however, the mechanisms of these effects on the temperature sensitivity and adaptability of soil respiration are different. The temperature sensitivity of soil respiration is mainly related to the state of the above mentioned factors, while the adaptability soil respiration is largely determined by the biological process. For example, mean temperature, enzyme activity, substrate quality and the amount of microbes are the factors determining temperature sensitivity of soil respiration. Whereas, the amplitude of temperature changes, enzyme optimum temperature, substrate quantity, and diversity of microbes control the adaptability of soil respiration. Finally we pointed out that the temperature sensitivity and adaptability of soil respiration are closely related, and both the temperature sensitivity and adaptability of soil respiration are crucial in deeper our understanding on biology process. Both the two processes should be considered in the future research of terrestrial carbon cycle. In the end the future research hotpots are discussed.

Key words: organic-matter decomposition, soil microorganism, quality of organic-matter, soil enzyme activities, temperature

中图分类号:

S154.3

杨毅, 黄玫, 刘洪升, 刘华杰. 土壤呼吸的温度敏感性和适应性研究进展[J]. 自然资源学报, 2011, 26(10): 1811-1820.

YANG Yi, HAUNG Mei, LIU Hong-sheng, LIU Hua-jie. The Interrelation between Temperature Sensitivity and Adaptability of Soil Respiration[J]. JOURNAL OF NATURAL RESOURCES, 2011, 26(10): 1811-1820.

参考文献

[1] 方精云,王娓.作为地下过程的土壤呼吸:我们理解了多少？[J] 植物生态学报,2007,31(3):345-347. [2] Raich J W, Schlesinger W H. The global carbon dioxide flux in soil respiration and its relationship to vegetation and climate [J]. Tellus,1992,44(2):81-99. [3] Davidson E A, Janssens I A, LuoY Q. On the variability of respiration in terrestrial ecosystems: Moving beyond Q₁₀ [J]. Global Change Biology,2006,12(2):154-164. [4] 刘立新,董云社,等.内蒙古锡林河流域土壤呼吸的温度敏感性[J].中国环境科学,2007,27(2):226-230. [5] 刘洪升,刘华杰,王智平,等.土壤呼吸的温度敏感性[J].地理科学进展,2008, 27(4):51-60. [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(7021):57-59. [7] Cornelissen J H, et al. Global negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes [J]. Ecology Letters,2007,10(7):619-627. [8] Koch O, Tscherko D, Kandeler E. Temperature sensitivity of microbial respiration, nitrogen mineralization, and potential soil enzyme activities in organic alpine soils [J]. Global Biogeochemical Cycles,2007,21(4),GB4017, doi: 10.1029/2007GB002983. [9] Davidson E A, Janssens I A. Temperature sensitivity of soil carbon decomposition and feedbacks to climate change [J]. Nature, 2006,440(7081):165-173. [10] Conant R T, Steinweg J M, Haddix M L, et al. Experimental warming shows that decomposition temperature sensitivity increases with soil organic matter recalcitrance [J]. Ecology,2008, 89(9):2384-2391. [11] Balser T C, Wixon D L. Investigating biological control over soil carbon temperature sensitivity [J]. Global Change Biology,2009, 15(12):2935-2949. [12] Atkin O K, Scheurwater I, Pons T L. High thermal acclimation potential of both photosynthesis and respiration in two lowland Plantago species in contrast to an alpine congeneric [J]. Global Change Biology,2006,12(3):500-515. [13] Bradford M A, Davies C A, Frey S D, et al. Thermal adaptation of soil microbial respiration to elevated temperature [J]. Ecology Letters,2008,11(12):1316-1327. [14] Atkin O K, Tjoelker M G. Thermal acclimation and the dynamic response of plant respiration to temperature [J]. Trends in Plant Science,2003,8(7):343-351. [15] Yuste J C, Ma S, et al. Plant-soil interactions and acclimation to temperature of microbial-mediated soil respiration may affect predictions of soil CO₂ efflux [J]. Biogeochemistry,2010, 98(1/3):127-138. [16] Jarvis P , Linder S. Constraints to growth of boreal forests [J]. Nature,2000,405(6789):904-905. [17] Oechel W C, Vourlitis G L, Hastings S J, et al. Acclimation of ecosystem CO₂ exchange in the Alaskan Arctic in response to decadal climate warming [J]. Nature,2000,406(6799):978-981. [18] Luo Y Q, Wu L H, et al. Elevated CO₂ differentiates ecosystem carbon processes: Deconvolution analysis of Duke Forest FACE data [J]. Ecological Monographs,2001,71(3):357-376. [19] Rustad L E, Campbell J L, Marion G M, et al. A meta-analysis of the response of soil respiration, net nitrogen mineralization, and aboveground plant growth to experimental ecosystem warming [J]. Oecologia,2001,126(4):543-562. [20] Melillo J M, Steudler P A, Aber J D, et al. Soil warming and carbon-cycle feedbacks to the climate system [J]. Science,2002, 298(5601):2173-2176. [21] Eliasson P E, McMurtrie R E, Pepper D A, et al. The response of heterotrophic CO₂ flux to soil warming [J]. Global Change Biology,2005,11(1):167-181. [22] Misson L, et al. Partitioning forest carbon fluxes with overstory and understory eddy-covariance measurements: A synthesis based on FLUXNET data [J]. Agricultural and Forest Meteorology,2007,144(1/2):14-31. [23] Grogan P, Jonasson S. Temperature and substrate controls on intra-annual variation in ecosystem respiration in two subarctic vegetation types [J]. Global Change Biology,2005,11(3):465-475. [24] Denton M D, Sasse C, et al. Root distributions of Australian herbaceous perennial legumes in response to phosphorus placement [J]. Functional Plant Biology,2006,33(12):1091-1102. [25] Ågren G I, Wetterstedt J Å M. What determines the temperature response of soil organic matter decomposition? [J] Soil Biology & Biochemistry,2007,39(7):1794-1798. [26] Hartley I P, Ineson P. Substrate quality and the temperature sensitivity of soil organic matter decomposition [J]. Soil Biology & Biochemistry,2008,40(7): 1567-1574. [27] Hall M, Stueckler C, et al. Asymmetric bioreduction of C=C bonds using enoate reductases OPR1, OPR3 and YqjM: Enzyme-based stereocontrol [J]. Advanced Synthesis & Catalysis,2008, 350(3):411-418. [28] Appel H M. Phenolics in ecological interactions: The importance of oxidation [J]. Journal of Chemical Ecology,1993,19(7): 1521-1552. [29] Fenner N, Freeman C, Reynolds B. Observations of a seasonally shifting thermal optimum in peat land carbon-cycling processes: Implications for the global carbon cycle and soil enzyme methodologies [J]. Soil Biology & Biochemistry,2005,37(10): 1814-1821. [30] Hurry V M, Keerberg O, Parnik T, et al. Cold-hardening results in increased activity of enzymes involved in carbon metabolism in leaves of winter rye (Secale cereale L) [J]. Planta,1995,195(4):554-562. [31] Malcolm G M, Lopez-Gutierrez J C, Koide R T, et al. Acclimation to temperature and temperature sensitivity of metabolism by ectomycorrhizal fungi [J]. Global Change Biology,2008,14(5):1169-1180. [32] Lange O L, Green T G A. Lichens show that fungi can acclimate their respiration to seasonal changes in temperature [J]. Oecologia,2005,142(1):11-19. [33] 孙晓敏,温学发,于贵瑞,等.中亚热带季节性干旱对千烟洲人工林生态系统碳吸收的影响[J].中国科学D辑:地球科学,2006, 36(增刊1):103-110. [34] 王小国,朱波,王艳强,等.不同土地利用方式下土壤呼吸及其温度敏感性[J].生态学报,2007(5),27:1960-1968. [35] Liu H S, Li L H, Han X G, et al. Respiratory substrate availability plays a crucial role in the response of soil respiration to environmental factors [J]. Applied Soil Ecology,2006,32(3):284–292. [36] Kirschbaum M U F. Will changes in soil organic matter act as a positive or negative feedback on global warming? [J] Biogeochemistry,2000,48(1):21-51. [37] Bond-Lamberty B, Thomson A. Temperature-associated increases in the global soil respiration record [J]. Nature,2010,464(7288): 579-582. [38] Wetterstedt J A M, Persson T, et al. Temperature sensitivity and substrate quality in soil organic matter decomposition: results of an incubation study with three substrates [J]. Global Change Biology,2010,16(6):1806-1819. [39] Bosatta E, Ågren G I. Soil organic matter quality interpreted thermodynamically [J]. Soil Biology & Biochemistry,1999,31(13): 1889-1891. [40] Ågren G I. Temperature dependence of old soil organic matter [J]. AMBIO,2000,29(1):56-57. [41] Ågren G I, Bosatta E. Reconciling differences in predictions of temperature response of soil organic matter [J]. Soil Biology & Biochemistry,2002,34(1):129-132. [42] Knorr W, Prentice I C, House J I, et al. Long-term sensitivity of soil carbon turnover to warming [J]. Nature,2005,433(7023): 98-301. [43] Fierer N, Craine J M, Mclauchlan K, et al. Litter quality and the temperature sensitivity of decomposition [J]. Ecology,2005, 86(2): 320-326. [44] Davidson E A, Belk E, Boone R D. Soil water content and temperature as independent or confounded factors controlling soil respiration in a temperate mixed hardwood forest [J]. Global Change Biology,1998,4(2):217-227. [45] Giardina C P, Ryan M G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature [J]. Nature,2000, 404(6780):858-861. [46] Conen F, Karhu K, Leifeld J, et al. Temperature sensitivity of young and old soil carbon-Same soil, slight differences in ¹³C natural abundance method, inconsistent results [J]. Soil Biology & Biochemistry,2008,40(10):2703-2705. [47] Fang C, Smith P, Smith J U. Is resistant soil organic matter more sensitive to temperature than the labile organic matter? [J] Biogeochemistry,2006,3(1):65-68. [48] Gershenson A, Bader N, Cheng W. Effects of substrate availability on the temperature sensitivity of soil organic matter decomposition [J]. Global Change Biology,2009,15(1):176-183. [49] Fisk M C, Ruether K F, Yavitt J B. Microbial activity and functional composition among northern peat land ecosystems [J]. Soil Biology & Biochemistry, 2003, 35(4):591-602. [50] Kemmitt S J, Lanyon C V, Waite L S, et al. Mineralization of native soil organic matter is not regulated by the size, activity or composition of the soil microbial biomass—A new perspective [J]. Soil Biology & Biochemistry, 2008, 40(1):61-73. [51] Chapin F S, Matson P A, Mooney H A. Principles of Terrestrial Ecosystem Ecology [M]. Springer, New York,2002. [52] Biasi R. Temperature-dependent shift from labile to recalcitrant carbon sources of arctic heterotrophs [J]. Rapid Communications in Mass Spectrometry,2005,19(11):1401-1408. [53] Kätterer T, Reichstein M, Andrén O, et al. Temperature dependence of organic matter decomposition: A critical review using literature data analyzed with different models [J]. Biology and Fertility of Soils,1998,27(3):258-262. [54] Cleveland C C, Nemergut D R, Schmidt S K, et al. Increase in soil respiration following labile carbon additions linked to rapid shifts in soil microbial community composition [J]. Biogeochemistry,2006,doi 10.1007/ s10533- 006-9065-z. [55] Janssens I A, Pilegaard K. Large seasonal changes in Q10 of soil respiration in a beech forest [J]. Global Change Biology, 2003, 9(6):911-918. [56] Jassal R S, Black T A, Novak M D, et al. Effect of soil water stress on soil respiration and its temperature sensitivity in an 18-year-old temperate Douglas-fir stand [J]. Global Change Biology,2008,14(6):1305-1318. [57] Almagro M, Lopez J, Querejeta J I, et al. Temperature dependence of soil CO2 efflux is strongly modulated by seasonal patterns of moisture availability in a Mediterranean ecosystem [J]. Soil Biology and Biochemistry, 2009, 41(3):594-605. [58] McCulley R L, Boutton T W, Archer S R. Soil respiration in a subtropical savanna parkland: Response to water additions [J]. Soil Science Society of America Journal,2007,71(3):820-828. [59] Gaumont-Guay D, Black T A, Griffis T J, et al. Interpreting the dependence of soil respiration on soil temperature and water content in a boreal aspen stand [J]. Agricultural and Forest Meteorology,2006,140(1/4):220-235. [60] Wang C K, Yang J Y, Zhang Q Z. Soil respiration in six temperate forests in China [J]. Global Change Biology,2006,12(11): 2103-2114. [61] Smith V R. Moisture, carbon and inorganic nutrient controls of soil respiration at a sub-Antarctic island [J]. Soil Biology and Biochemistry,2005,37(1):81-91. [62] Conant R T, Dalla-Betta P, Klopatek C C, et al. Controls on soil respiration in semiarid soils [J]. Soil Biology and Biochemistry, 2004, 36(6):945-951. [63] Bowden R D, Newkirk K M, Rullo G M. Carbon dioxide and methane fluxes by a forest soil under laboratory-controlled moisture and temperature conditions [J]. Soil Biology and Biochemistry,1998,30(12):1591-1597. [64] 周涛,史培军.土地利用变化对中国土壤碳储量变化的间接影响[J].地球科学进展,2006,21(2):138-143.