Chin J Plan Ecolo ›› 2013, Vol. 37 ›› Issue (4): 296-305.doi: 10.3724/SP.J.1258.2013.00029

• Research Articles • Previous Articles     Next Articles

Effect of seasonal snow cover on litter decomposition in alpine forest

WU Qi-Qian1, WU Fu-Zhong1, YANG Wan-Qin1*, XU Zhen-Feng1, HE Wei1, HE Min1, ZHAO Ye-Yi1, and ZHU Jian-Xiao1,2   

  1. 1Key Laboratory of Ecological Forestry Engineering of Sichuan Province, Institute of Ecological & Forestry, Sichuan Agricultural University, Chengdu 611130, China;

    2Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
  • Received:2012-12-12 Revised:2013-02-13 Online:2013-04-09 Published:2013-04-01
  • Contact: YANG Wan-Qin


Aim Seasonal snow cover may play an important role in litter decomposition in subalpine forest, but little information has been available on the effects of different snow depths on litter mass loss. Therefore, our objective was to characterize the rate of mass loss during litter decomposition under different snow cover conditions.
Methods A field litterbag experiment was conducted in an alpine fir forest of western Sichuan, China from October 2010 to October 2012. Samples of air-dried leaf litter of fir (Abies faxoniana), larch (Larix mastersiana), cypress (Sabina saltuaria) and birch (Betula albosinensi) were placed in nylon litterbags (20 cm × 20 cm, 10 g per bag), and the edges were sealed. Mass loss rates were investigated at different critical stages (onset of freezing period, deep freezing period, thawing stage and growing season) during two years of decomposition.
Important findings Two years of decomposition resulted in mass loss of 33.98%–39.55% for fir, 46.49%–48.22% for birch, 42.30%–44.93% for larch and 40.34%–43.84% for cypress. Compared with no snow cover, thick snow cover marginally increased mass loss by 1.73%–5.57%. The k values from the Olson decomposition constant for three coniferous litters (fir, larch and cypress) were highest under thick snow cover and lowest under no snow cover. However, the k value for birch, a broad-leaved species, showed the ranked order of no snow cover﹥thin snow cover﹥thicker snow cover﹥thick snow cover﹥medium snow cover. Although snow cover did not significantly promote decomposition of birch litter during growing season in the second year, snow cover significantly promoted decomposition of fir, larch and cypress litters at all investigated stages in two years. Additionally, mass loss during snow cover period in the first year accounted for 42.5%–65.5% of the entire first year decomposition, indicating that seasonal snow cover dramatically changed the decomposition of leaf litters in winter, especially at the deep frozen stage. In conclusion, litter decomposition in this alpine forest would be delayed by the decrease of winter snow cover predicted with climate change. Compared with broad-leaved litter, coniferous litter could display stronger responses to such changes of snow cover.

CLC Number: 

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[1]Aerts R (1997). Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystem: a triangular elationship. Oikos, 79, 439–449.
[2]Aerts R (2006). The freezer defrosting: global warming and litter decomposition rates in cold biomes. Journal of Ecology, 94, 713–724. Crossref
[3]Baptist F, Yoccoz NG, Choler P (2010). Direct and indirect control by snow cover over decomposition in alpine tundra along a snowmelt gradient. Plant and Soil, 328, 397–410. Crossref
[4]Brooks PD, Williams MW, Schmidt SK (1996). Microbial activity under alpine snowpacks, Niwot Ridge, Colorado. Biogeochemistry, 32, 93–113. Crossref
[5]Deng RJ, Yang WQ, Feng RF, Hu JL, Qin JL, Xiong XJ (2009). Mass loss and element release of litter in the subalpine forest over one freeze-thaw season. Acta Ecologica Sinica, 29, 5731–5735. (in Chinese with English abstract) [邓仁菊, 杨万勤, 冯瑞芳, 胡建利, 秦嘉励, 熊雪晶 (2009). 季节性冻融期间亚高山森林凋落物的质量损失及元素释放. 生态学报, 29, 5731–5735.] Crossref
[6]Gavazov KS (2010). Dynamics of alpine plant litter decomposition in a changing climate. Plant and Soil, 337, 19–32. Crossref
[7]Groffman PM, Driscoll CT, Fahey TJ, Hardy JP, Fitzhugh RD, Fierney GL (2001). Effects of mild winter freezing on soil nitrogen and carbon dynamics in a northern hardwood forest. Biogeochemistry, 56, 191–213. Crossref
[8]Hobbie SE (1996). Temperature and plant species control over litter decomposition in Alaskan tundra. Ecological Monographs, 66, 503–522. Crossref
[9]Hobbie SE, Chapin FS (1996). Winter regulation of tundra litter carbon and nitrogen dynamics. Biogeochemistry, 35, 327–338. Crossref
[10]Hu X, Wu N, Wu Y, Zuo WQ, Guo HX, Wang JN (2012). Effects of snow cover on the decomposition and nutrient dynamics of Sibiraea angustata leaf litter in western Sichuan Plateau, Southwest China. Chinese Journal of Applied Ecology, 23, 1226–1232. (in Chinese with English abstract) [胡霞, 吴宁, 吴彦, 左万庆, 郭海霞, 王金牛 (2012). 川西高原季节性雪被覆盖对窄叶鲜卑花凋落物分解和养分动态的影响. 应用生态学报, 23, 1226– 1232.]
[11]IPCC (2007). Climate Change 2007: the Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK. Crossref
[12]Keane RE (2008). Biophysical controls on surface fuel litterfall and decomposition in the northern Rocky Mountains, USA. Canadian Journal of Forest Research, 38, 1431–1445. Crossref
[13]Lemma B, Nilsson I, Kleja DB, Olssonb M, Knickerd H (2007). Decomposition and substrate quality of leaf litters and fine roots from three exotic plantations and a native forest in the southwestern highlands of Ethiopia. Soil Biology & Biochemistry, 39, 2317–2328. Crossref
[14]Lin B, Liu Q, Wu Y, He H (2004). Advances in the studies of forest litter. Chinese Journal of Ecology, 23, 60–64. (in Chinese with English abstract) [林波, 刘庆, 吴彦, 何海 (2004). 森林凋落物研究进展. 生态学杂志, 23, 60–64.] Crossref
[15]Liu B, Yang WQ, Wu FZ (2010). Advances in the subalpine forest ecosystem processes. Acta Ecologica Sinica, 30, 4476–4483. (in Chinese with English abstract) [刘彬, 杨万勤, 吴福忠 (2010). 亚高山森林生态系统过程研究进展. 生态学报, 30, 4476–4483.] Crossref
[16]Liu L, Wu FZ, Yang WQ, Wang A, Tan B, Yu S (2010). Soil bacterial diversity in the subalpine/alpine forests of western Sichuan at the early stage of freeze-thaw season. Acta Ecologica Sinica, 30, 5687–5694. (in Chinese with English abstract) [刘利, 吴福忠, 杨万勤, 王奥, 谭波, 余胜 (2010). 季节性冻结初期川西亚高山/高山森林土壤细菌多样性. 生态学报, 30, 5687–5694.] Crossref
[17]Lousier JD, Parkinson D (1976). Litter decomposition in a cool temperate deciduous forest. Canadian Journal of Botany, 54, 419–436. Crossref
[18]Melillo JM, Aber JD, Muratore JF (1982). Nitrogen and lignin control of hardwood leaf litter decomposition dynamics. Ecology, 63, 621–626. Crossref
[19]Nadelhoffer KJ, Giblin AE, Shaver GR, Linkins AE (1992). Microbial processes and plant nutrient availability in arctic soils. In: Chapin FS III, Jefferies RL, Reynolds JF, Shaver GR, Svoboda J eds. Arctic Ecosystems in A Changing Climate: an Ecophysiological Perspective. Academic Press, New York. 281–300. Crossref
[20]Olson JS (1963). Energy storage and the balance of producers and decomposers in ecological systems. Ecology, 44, 322–331. Crossref
[21]Song XZ, Jiang H, Ma YD, Yu SQ, Zhou GM, Peng SL, Dou RP, Guo PP (2009). Litter decomposition across climate zone in Eastern China: the integrated influence of climate and litter quality. Acta Ecologica Sinica, 29, 5219–5226. (in Chinese with English abstract) [宋新章, 江洪, 马元丹, 余树全, 周国模, 彭少麟, 窦荣鹏, 郭培培 (2009). 中国东部气候带凋落物分解特征——气候和基质质量的综合影响. 生态学报, 29, 5219–5226.]
[22]Stanton ML, Rejmánek M, Galen C (1994). Changes in vegetation and soil fertility along a predictable snowmelt gradient in the Mosquito Range, Colorado, USA. Arctic and Alpine Research, 26, 364–374. Crossref
[23]Stieglitz M, Déry SJ, Romanovsky VE, Osterkamp TE (2003). The role of snow cover in the warming of arctic permafrost. Geophysical Research Letters, 30, 1–4. Crossref
[24]Tan B, Wu FZ, Yang WQ, Liu L, Yu S (2010). Characteristics of soil animal community in the subalpine/alpine forests of western Sichuan during onset of freezing. Acta Ecologica Sinica, 30, 93–99. Crossref
[25]Tomaselli M (1991). The snow-bed vegetation in the Northern Apennines. Vegetatio, 94, 177–189. Crossref
[26]Vossbrinck CR, Coleman DC, WooHey TA (1979). Abiotic and biotic factors in litter decomposition in a semiarid grassland. Ecology, 60, 265–271. Crossref
[27]Wu FZ, Yang WQ, Zhang J, Deng RJ (2010). Litter decomposition in two subalpine forests during the freeze-thaw season. Acta Oecologica, 36, 135–140. Crossref
[28]Xia L, Wu FZ, Yang WQ (2011). Contribution of soil fauna to mass loss of Abies faxoniana leaf litter during the freeze-thaw season. Chinese Journal of Plant Ecology, 35, 1127–1135. (in Chinese with English abstract) [夏磊, 吴福忠, 杨万勤 (2011). 季节性冻融期间土壤动物对岷江冷杉凋落叶质量损失的贡献. 植物生态学报, 35, 1127–1135.] Crossref
[29]Yang WQ, Deng RJ, Zhang J (2007a). Forest litter decomposition and its responses to global climate change. Journal of Plant Ecology (Chinese Version), 18, 2889–2895. (in Chinese with English abstract) [杨万勤, 邓仁菊, 张健 (2007a). 森林凋落物分解及其对全球气候变化的响应. 植物生态学报, 18, 2889–2895.] Crossref
[30]Yang WQ, Feng RF, Zhang J, Wang KY (2007b). Carbon stock and biochemical properties in the organic layer and mineral soil under three subalpine forests in Western China. Acta Ecologica Sinica, 27, 4157–4165. (in Chinese with English abstract) [杨万勤, 冯瑞芳, 张健, 王开运 (2007b). 中国西部3个亚高山森林土壤有机层和矿质层碳储量和生化特性. 生态学报, 27, 4157–4165.] Crossref
[31]Yang YL, Wu FZ, He ZH, Xu ZF, Liu Y, Yang WQ, Tan B (2012). Effects of snow pack removal on soil microbial biomass carbon and nitrogen and the number of soil culturable microorganisms during wintertime in alpine Abies faxoniana forest of western Sichuan, Southwest China. Chinese Journal of Applied Ecology, 23, 1809–1816. (in Chinese with English abstract) [杨玉莲, 吴福忠, 何振华, 徐振锋, 刘洋, 杨万勤, 谭波 (2012). 除雪对川西高山冷杉林冬季土壤微生物生物量碳氮和可培养微生物数量的影响. 应用生态学报, 23, 1809–1816.] Crossref
[32]Zhu JX, He XH, Wu FZ, Tan B (2012). Decomposition of Abies faxoniana litter varies with freeze-thaw stages and altitudes in subalpine/alpine forests of southwest China. Scandinavian Journal of Forest Research, 27, 586–596. Crossref
[33]Zlotin RI (1971). Invertebrate animals as a factor of the biological turnover. Annales de Zoologie: Ecologie Animale, (Hors Ser.), 455–462. Crossref
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[1] . [J]. Chin Bull Bot, 1994, 11(专辑): 19 .
[2] Xiao Xiao and Cheng Zhen-qi. Chloroplast 4.5 S ribosomol DNA. II Gene and Origin[J]. Chin Bull Bot, 1985, 3(06): 7 -9 .
[3] CAO Cui-LingLI Sheng-Xiu. Effect of Nitrogen Level on the Photosynthetic Rate, NR Activity and the Contents of Nucleic Acid of Wheat Leaf in the Stage of Reproduction[J]. Chin Bull Bot, 2003, 20(03): 319 -324 .
[4] SONG Li-Ying TAN Zheng GAO Feng DENG Shu-Yan. Advances in in vitro Culture of Cucurbitaceae in China[J]. Chin Bull Bot, 2004, 21(03): 360 -366 .
[5] Shi Jian ming;Gui Yao-lin and Zhu Zhi-qing. Observation on Amitosis of Sugarbeet (Beta vulgaris) Petiole during Dedifferentiation in Vitro[J]. Chin Bull Bot, 1989, 6(03): 155 .
[6] . [J]. Chin Bull Bot, 1994, 11(专辑): 76 .
[7] LI Jun-De YANG Jian WANG Yu-Fei. Aquatic Plants in the Miocene Shanwang Flora[J]. Chin Bull Bot, 2000, 17(专辑): 261 .
[8] XU Jing-Xian WANG Yu-Fei YANG Jian PU Guang-Rong ZHANG Cui-Fen. Advances in the Research of Tertiary Flora and Climate in Yunnan[J]. Chin Bull Bot, 2000, 17(专辑): 84 -94 .
[9] Sun Zhen-xiao Xia Guang-min Chen Hui-min. Karyotype Analysis of Psathyrostachys juncea[J]. Chin Bull Bot, 1995, 12(01): 56 .
[10] . [J]. Chin Bull Bot, 1994, 11(专辑): 8 -9 .