Release characteristics of carbon, nitrogen and phosphorus from withered leaves of dominant plants in Jiuzhaigou valley
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摘要: 通过对九寨沟水体中两种优势植物落叶的碳氮磷淋溶动态分析发现:初期总溶解碳氮磷释放在48 h内逐渐稳定,表明短期的淋溶过程就可以导致较大比例的元素释放;磷的短期平均可溶出比例为29.61%,表明淋溶是植物磷元素释放的重要途径;估算得出九寨沟植物叶片碳氮磷贡献总量分别可达20 577 t.a-1,2 101 t.a-1,1 402 t.a-1。研究表明九寨沟植物凋落物淋溶是水体碳氮磷的重要来源,也是影响钙华沉积的重要因素。分析凋落物养分溶出特征,可为九寨沟生态系统的健康发展提供数据支撑。Abstract: The dynamic analysis of C,N,and P leaching of the leaves of two dominant plants in Jiuzhaigou reveals that the release of initial total dissolved C,N,and P gradually stabilizes within 48 h,indicating that the short-term leaching process can lead to the release of a larger proportion of elements. The short-term average leaching ratio of phosphorus is 29.61%,indicating that leaching is an important way to release phosphorus from plants. The total contributions of carbon,nitrogen and phosphorus to plant leaves in Jiuzhaigou are estimated to be 20,577 t.a-1,2,101 t.a-1 and 1,402 t.a-1,respectively. Research suggests that the leachate of plant withered leaves is an important source of carbon,nitrogen and phosphorus,and an important factor affecting the deposition of travertine in Jiuzhaigou. The nutrient dissolution characteristics of litter presented above can provide data support for the healthy development of Jiuzhaigou ecosystem.
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Key words:
- withered leaf /
- leaching /
- carbon /
- nitrogen and phosphorus release /
- travertine deposition
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[1] 刘璐, 赵常明, 徐文婷, 等. 神农架常绿落叶阔叶混交林凋落物养分特征[J]. 生态学报, 2019, 39(20): 7611-7620. [2] Chapin F S, Matson P A, Mooney H A. Principles of Terrestrial Ecosystem Ecology[M]. Principles of Terrestrial Ecosystem Ecology. Springer, 2011. [3] 程志辉, 李法云, 李海燕,等. 辽东山地水源涵养林典型植被凋落物C、N、P溶出特征及其影响因素[J]. 生态学杂志, 2019, 38(4):107-116. [4] 邓远明. 九-黄景区典型人为与自然源碳氮磷贡献与钙华沉积特征研究[D]. 绵阳: 西南科技大学, 2020. [5] Lavery P S, McMahon, K, et al. Release of Dissolved Organic Carbon from Seagrass Wrack and Its Implications for Trophic Connectivity[J].Mar Ecol Prog Ser,2013(494): 121-133. [6] Fraysse F, Pokrovsky O S, Meunier J D. Experimental Study of Terrestrial Plant Litter Interaction With Aqueous Solutions[J]. Geochimica et Cosmochimica Acta, 2010, 74(1): 70-84. [7] Hernes P J, Spencer R G M, Dyda R Y, et al. The Genesis and Exodus of Vascular Plant DOM from an Oak Woodland Landscape[J]. Front Earth, 2017(5): 9. [8] Textor S R, Guillemette F, Zito P A, et al. An Assessment of Dissolved Organic Carbon Biodegradability and Priming in Blackwater Systems[J]. Journal of Geophysical Research: Biogeoences, 2018, 123(9): 2998-3015. [9] Audry S, Akerman A, Riotte J, et al. Contribution of Forest Fire Ash and Plant Litter Decay on Stream Dissolved Composition in A Sub-humid Tropical Watershed (Mule Hole, Southern India) [J]. Chemical Geology, 2014, 372: 144-161. [10] 朱成科. 九寨沟核心景区湖泊水环境与藻类相关性研究[D]. 重庆:西南大学, 2007. [11] Mili?a M, Belan?i? A, Kep?ija R M, et al. Calcite Deposition in Karst Waters Is Promoted by Leaf Litter Breakdown and Vice Versa. Annales de Limnologie-International Journal of Limnology, 2010. 46(4): 225-232. [12] Plant L J, House W A. Precipitation of Calcite in The Presence of Inorganic Phosphate[J]. Colloids &Surfaces A Physicochemical & Engineering Aspects, 2002, 203(1): 143-153. [13] 乔雪, 江丽君, 唐亚, 等. 九寨沟大气氮、磷和硫沉降的通量及水环境意义[J]. 山地学报, 2014(5):633-640. [14] 党政, 任锦海, 安超, 等. 7.0级地震对九寨沟核心景观和水化学影响[J]. 中国岩溶, 2019, 38(2): 186-192. [15] 杨俊义, 万新南, 范晓, 等. 九寨沟水环境系统动态模拟[J]. 四川地质学报, 2002(1): 16-20. [16] 鄢春华, 王蓓, 邹振东, 等. 九寨沟针阔混交林的夜间液流及其分配特征研究[J]. 北京大学学报(自然科学版), 2020, 56(4): 732-738. [17] 蓝振江, 蔡红霞, 曾涛, 等. 九寨沟主要植物群落生物量的空间分布[J]. 应用与环境生物学报, 2004, 10(3): 299-306. [18] 周涛, 史培军, 贾根锁,等. 中国森林生态系统碳周转时间的空间格局[J]. 中国科学:地球科学, 2010(5):632-644. [19] 文凤娟, 张辉, 王全兰. 九寨沟县近30年气候特征分析[J]. 农家参谋, 2019(12): 179. [20] 李蕾. 九寨沟亚高山流域汞的迁移转化特征[D]. 成都:四川师范大学, 2020. [21] Liu S, Jiang Z, Zhou C, et al. Leaching of Dissolved Organic MatterFrom Seagrass Leaf Litter and Its Biogeochemical Implications[J]. 海洋学报(英文版), 2018, 37(8): 84-90. [22] Halima M, Biyanzi P, Ibrahima A. Changes in Organic Compounds During Leaf Litter Leaching:Laboratory Experiment on Eight Plant Species of The Sudano-guinea Savannas of Ngaoundere,Cameroon[J]. Iforest Biogeoences Forestry, 2008, 1(1): 27-33. [23] 豆鹏鹏, 王芳, 马瑜, 等. 叶凋落物碳、氮和磷元素对模拟淋溶的响应[J]. 科学通报, 2018, 63(30):63-72. [24] Marks, JC. Revisiting the Fates of Dead Leaves That Fall into Streams. Annual Review of Ecology, Evolution, and Systematics, 2019, 50(1): 547-568. [25] 冯峰, 王辉, 方涛,等. 东湖沉积物中微生物量与碳、氮、磷的相关性[J]. 中国环境科学, 2006(3): 88-91. [26] 张金流, 鲍祥. 溶解有机碳对黄龙钙华沉积的影响[J]. 安庆师范大学学报(自然科学版), 2017, 23(1): 78-82. [27] Vorobyev S N, Pokrovsky O S, Kolesnichenko L G, et al. Biogeochemistry of Dissolved Carbon, Major and Trace Elements During Spring Flood Periods on The Ob River[J]. Hydrological Processes, 2019, 33(11): 1579-1594. [28] Moss, B. Nitrogen, Macrophytes, Shallow Lakes and Nutrient Limitation: Resolution of ACurrent Controversy? [J]. Hydrobiologia, 2013, 710(1): 3-21. [29] Scott J T, Cotner J B, Lapara T M. Variable Stoichiometry and Homeostatic Regulation of Bacterial Biomass Elemental Composition. Frontiers in Microbiology, 2012(3): 42.
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