生物土壤结皮碳释放对水热因子的响应
Response of Biological Soil Crusts Carbon Release to Hydrothermic Factors
DOI: 10.12677/HJSS.2018.61001, PDF,    国家自然科学基金支持
作者: 吴玉哲, 林庆功：兰州铁路局中卫工务段，宁夏 中卫；张志山, 赵洋*：中国科学院西北生态环境资源研究院，沙坡头沙漠研究试验站，甘肃 兰州
关键词: 生物土壤结皮；碳释放；土壤含水量；温度；腾格里沙漠；Biological Soil Crusts； Carbon Release； Soil Water Content； Temperature； Tengger Desert
摘要: 在室内控制条件下，以腾格里沙漠东南缘1964年人工固沙植被区藻类、混生和藓类结皮为对象，研究了3个温度梯度(15℃、25℃和35℃)和7个水分梯度(3%、5%、10%、15%、20%、25%和30%质量含水量)条件下其碳释放特征。在相同水分条件下，BSCs和流沙呼吸速率随着温度的增加而增加，35℃时BSCs和流沙呼吸速率达到最大值。藓类结皮的呼吸速率显著高于其他土壤类型土壤呼吸。藓类结皮Q10为1.40~3.17，藻类结皮为0.81~3.07，混生结皮为0.55~3.84，流沙为1.19~2.16。BSCs类型、水分和温度显著影响BSCs碳释放量(P < 0.001)。水分含量较高的条件下，藻类和混生结皮的呼吸速率受到了明显抑制，而对藓类结皮的呼吸速率影响不显著。
Abstract: The carbon release of different types of biological soil crusts (BSC) covered soil was measured under different temperatures condition (15˚C, 25˚C and 35˚C) and different soil water content conditions (3%, 5%, 10%, 15%, 20%, 25% and 30%) in fixed sand dunes at the re-vegetated area in Tengger Desert, Northern China. In the same soil water content condition, the carbon release rate of BSCs and sand were increased with temperature increasing, the highest carbon release rate occurred at 35˚C. The carbon release rate of moss crust was significantly higher than other soil types. Q10 value of moss crust was 1.40 - 3.17, algae crust was 0.81 - 3.07, mixed crust was 0.55 - 3.84 and sand was 1.19 - 2.16. BSCs types, soil water content and temperature were significantly affected on carbon release rate (P < 0.001). The results showed that the respiration rate of the algal crust and mixed crust were significantly restrained by higher soil water content; however, moss crust was not significantly influenced.
文章引用：吴玉哲, 林庆功, 张志山, 赵洋. 生物土壤结皮碳释放对水热因子的响应[J]. 土壤科学, 2018, 6(1): 1-10. https://doi.org/10.12677/HJSS.2018.61001

参考文献

[1] West, N.E. (1990) Structure and Function of Micro-Phytic Soil Crusts in Wild-Land Ecosystems of Arid to Semi-Arid Regions. Ad-vances in Ecological Research, 20, 179-223. [Google Scholar] [CrossRef] 
[2] Eldridge, D.J. and Greene, R.S.B. (1994) Micro-Biotic Soil Crusts: A View of Their Roles in Soil and Ecological Processes in the Rangelands of Australia. Aus-tralian Journal of Soil Research, 32, 389-415. [Google Scholar] [CrossRef] 
[3] Belnap, J. and Lange, O.L. (2003) Biological Soil Crusts: Structure, Function, and Management. Springer-Verlag, Berlin. [Google Scholar] [CrossRef] 
[4] 李新荣. 荒漠生物土壤结皮生态与水文学研究[M]. 北京: 高等教育出版社, 2012.
[5] 李新荣, 张元明, 赵允格. 生物土壤结皮研究: 进展、前沿与展望[J]. 地球科学进展, 2009, 24(1): 11-25.
[6] Wolfgang, E., Bettina, W., Burrows, S., et al. (2012) Contribution of Cryptogamic Covers to the Global Cycles of Carbon and Nitrogen. Nature Geoscience, 3, 1-4.
[7] Elbert, W., Weber, B., Büdel, B., et al. (2009) Microbiotic Crusts on Soil, Rock and Plants: Neglected Major Players in the Global Cycles of Carbon and Nitrogen. Biogeosciences Discuss, 6, 6983-7015. [Google Scholar] [CrossRef] 
[8] 贾荣亮, 李新荣, 谭会娟, 等. 沙埋干扰去除后生物土壤结皮光合生理恢复机制[J]. 中国沙漠, 2005, 30(6): 1299- 1305.
[9] Castillo-Monroy, A.P., Maestre, F.T., et al. (2011) Biological Soil Crust Mi-cro-Sites Are the Main Contributor to Soil Respiration in a Semiarid Ecosystem. Ecosystems, 14, 835-847. [Google Scholar] [CrossRef] 
[10] Evans, R.D. and Lange, O.L. (2001) Biological Soil Crusts and Ecosystem Nitrogen and Carbon Dynamics. Biological Soil Crusts: Characteristics and Distribution. In: Belnap, J. and Lange, O.L., Eds., Biological Soil Crusts: Structure, Function, and Management, Springer-Verlag, New York, 263-279. [Google Scholar] [CrossRef] 
[11] Grote, E.E., Belnap, J., Housman, D.C., et al. (2010) Carbon Exchange in Biological Soil Crust Communities under Differential Temperatures and Soil Water Content: Implications for Global Change. Global Change Biology, 16, 2763- 2774. [Google Scholar] [CrossRef] 
[12] Kirschbaum, M.U.F. (1995) Temper-ature Dependence of Soil Organic Matter Decomposition, and the Effect of Global Warming on Soil Organic C Storage. Soil Biology & Biochemistry, 27, 753-760. [Google Scholar] [CrossRef] 
[13] Li, X.R., Tian, F., Jia, R.L., et al. (2010) Do Biological Soil Crusts Deter-mine Vegetation Changes in Sandy Deserts? Implications for Managing Artificial Vegetation. Hydrological Processes, 24, 3621-3630. [Google Scholar] [CrossRef] 
[14] Huxman, T., Snyder, K., Tissue, D., et al. (2004) Precipitation Pulses and Carbon Fluxes in Semiarid and Arid Ecosystems. Oecologia, 141, 254-268. [Google Scholar] [CrossRef] [PubMed]
[15] Sponseller, R.A. (2007) Precipitation Pulses and Soil CO2 Flux in a Sonoran Desert Ecosystem. Global Change Biology, 13, 426-436. [Google Scholar] [CrossRef] 
[16] 卫伟, 陈利顶, 傅伯杰, 等. 黄土丘陵沟壑区极端降雨事件及其对径流泥沙的影响[J]. 干旱区地理, 2007, 30(6): 896-901.
[17] 张红星, 王效科, 冯宗炜, 等. 干湿交替格局下黄土高原小麦田土壤呼吸的温湿度模型[J]. 生态学报, 2009, 28(6): 6189-6196.
[18] McIntyre, R.E.S., Adams, M.A., Ford, D.J., et al. (2009) Rewetting and Litter Addition Influence Mineralisation and Microbial Communities in Soils from a Semi-Arid Intermittent Stream. Soil Biology and Biochemistry, 41, 92-101. [Google Scholar] [CrossRef] 
[19] Norton, U., Mosier, A.R., Morgan, J.A., et al. (2008) Moisture Pulses, Trace Gas Emissions and Soil C and N in Cheat Grass and Native Grass-Dominated Sage-Brush-Steppe in Wyoming, USA. Soil Biology and Biochemistry, 40, 1421-1431. [Google Scholar] [CrossRef] 
[20] Kursar, T.A. (1989) Elevation of Soil Respira-tion and Soil CO2 Concentration in a Low Land Moist Forest in Panama. Plant and Soil, 113, 21-29. [Google Scholar] [CrossRef] 
[21] Phillips, R. and Fahey, T. (2007) Fertilization Effects on Fineroot Biomass, Rhizo-sphere Microbes and Respiratory Fluxes in Hardwood Forest Soils. New Phytologist, 176, 655-664. [Google Scholar] [CrossRef] [PubMed]
[22] Thomas, A.D. and Hoon, S.R. (2010) Carbon Dioxide Fluxes from Biologically-Crusted Kalahari Sands after Simulated Wetting. Journal of Arid Environments, 74, 131-139. [Google Scholar] [CrossRef] 
[23] Sjögersten, S. and Wookey, P.A. (2002) Climatic and Resource Quality Controls on Soil Respiration across a Forest-Tundra Ecotone in Swedish Lapland. Soil Biology & Biochemistry, 34, 1633-1646. [Google Scholar] [CrossRef] 
[24] Nadelhoffer, K.J., Giblin, A.E., Shaver, G.R., et al. (1991) Effects of Temperature and Substrate Quality on Element Mineralization in Six Arctic Soils. Ecology, 72, 242-253. [Google Scholar] [CrossRef] 
[25] Howard, D.M. and Howard, P.J.A. (1993) Relationships between CO2 Evolution, Mois-ture Content and Temperature for a Range of Soil Types. Soil Biology & Biochemistry, 25, 1537-1546. [Google Scholar] [CrossRef] 
[26] Jia, R.L., Li, X.R., Liu, L.C., et al. (2008) Responses of Biological Soil Crusts to Sand Burial in Vegetated Area of the Tengger Desert, Northern China. Soil Biology and Biochemistry, 40, 2827-2834. [Google Scholar] [CrossRef] 
[27] Smith, V.R. (2005) Moisture, Carbon and Inorganic Nutrient Controls of Soil Respiration at a Sub-Antarctic Island. Soil Biology &Biochemistry, 37, 81-91. [Google Scholar] [CrossRef] 
[28] Conant, R.T., Dalla-Betta, P., Klopatek, C.C., et al. (2004) Controls on Soil Respiration in Semiarid Soil. Soil Biology &Biochemistry, 36, 945-951. [Google Scholar] [CrossRef] 
[29] 张志山. 固沙植被生态系统演替中的土壤生物学和呼吸特征研究[D]. 北京: 中国科学院研究生院, 2009.

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