鲜婷,董廷发,邓东周,潘红丽,刁元彬,刘玉平
XIAN Ting,DONG Tingfa,DENG Dongzhou,PAN Hongli,DIAO Yuanbin,LIU Yuping

• 1:西华师范大学生命科学学院
• 2:四川省林业科学研究院森林和湿地生态恢复与保育四川省重点实验室

摘要(Abstract)：

通过比较自然恢复、人为恢复及与自然植被的土壤碳氮化学计量特征,以期为九寨沟地震受损滑坡体快速恢复提供理论依据。结果表明:(1)与未受损植被的土壤相比,受损植被滑坡体的土壤有机碳、总氮、可利用氮含量均更低,但pH值和碳氮比均更高。(2)人为恢复下的植被总盖度、土壤有机碳、总氮、可利用氮含量均高于自然恢复。(3)土壤有机碳含量与总氮或可利用氮含量呈现正相关、而与pH值或碳氮比呈显著负相关。短期的结果表明人为恢复措施比自然恢复更有利于九寨沟震损坡体植被的快速恢复。此外,建议在未来植被恢复中注意栽植固氮植物。
According to the comparison of soil carbon and nitrogen stoichiometry characteristics between natural restoration after earthquake(NR), artificial restoration after earthquake(AR) and natural vegetation without earthquake(CK) in Jiuzhaigou country, it could provide theoretical basis for rapid restoration of landslide damaged by Jiuzhaigou earthquake. The results showed that:(1) Compared with the soil without earthquake damage, the contents of soil organic carbon(SOC), total nitrogen(TN), available nitrogen(AN) in landslides with earthquake-damaged vegetation were lower than that on CK, but the p H value and C/N were higher.(2) The total vegetation coverage, SOC, TN and AN contents under artificial restoration were higher than those under natural restoration.(3) SOC was positively correlated with TN or AN, but negatively correlated with p H or C/N. These short-term results indicated that artificial restoration was better for vegetation recovery of earthquake-stricken landslides than natural restoration. In addition, it is suggested that nitrogen-fixing plants should be planted in the future vegetation restoration.

关键词(KeyWords)： 碳氮化学计量学;植被恢复;九寨沟;滑坡体
Carbon and nitrogen stoichiometry;Vegetation restoration;Jizhaigou;Landslide

Abstract:

Keywords:

基金项目(Foundation): 九寨沟地震灾区珍稀动物受损栖息地林草植被快速恢复模式研究与示范

作者(Author): 鲜婷,董廷发,邓东周,潘红丽,刁元彬,刘玉平
XIAN Ting,DONG Tingfa,DENG Dongzhou,PAN Hongli,DIAO Yuanbin,LIU Yuping

参考文献(References)：

• [1]贺金生，韩兴国.生态化学计量学:探索从个体到生态系统的统一化理论[J].植物生态学报，2010,34(1):2-6.
• [2]王绍强，于贵瑞.生态系统碳氮磷元素的生态化学计量学特征[J].生态学报，2008,28(8):3937-3947.
• [3]张佳慧，王兴昌，王传宽.帽儿山温带森林演替初期土壤碳、氮、磷计量特征的变化[J].应用生态学报，2016,27(10):3189-3195.
• [4] Xiong X, Zhang H, Deng Q, et al. Soil organic carbon turnover following forest restoration in south China:Evidence from stable carbon isotopes[J]. Forest Ecology and Management, 2020, 462:117988.
• [5] Myers N, Mittermeier RA, Mittermeier CG, et al. Biodiversity hotspots for conservation priorities[J]. Nature, 2000, 403(6772):853-858.
• [6] Lin W-T, Lin C-Y, Chou W-C. Assessment of vegetation recovery and soil erosion at landslides caused by a catastrophic earthquake:a case study in Central Taiwan[J]. Ecological Engineering, 2006, 28(1):79-89.
• [7]曾剑峰，罗鹏，牟成香，等.岷山地震带山地坡面的植被演替[J].应用与环境生物学报，2014,20(1):1-7.
• [8] Ma H, Wang Y, Yue H, Zhong B. The threshold between natural recovery and the need for artificial restoration in degraded lands in Fujian Province, China[J]. Environmental Monitoring and Assessment, 2013, 185(10):8639-8648.
• [9]庞学勇，包维楷，江元明，等.九寨沟和黄龙自然保护区原始林与次生林土壤物理性质比较[J].应用与环境生物学报，2009,15(6):768-773.
• [10]鲍士旦.土壤农化分析[M].北京:中国农业出版社, 2000.
• [11] Bing HJ, Wu YH, Zhou J, et al. Stoichiometric variation of carbon, nitrogen, and phosphorus in soils and its implication for nutrient limitation in alpine ecosystem of Eastern Tibetan Plateau[J]. Journal of Soils and Sediments, 2016, 16:405-416.
• [12]吴聪，王金牛，卢涛，等.汶川地震对龙门山地区山地土壤理化性质的影响[J].应用与环境生物学报，2012,18(6):911-916.
• [13] Cookson WR, Abaye DA, Marschner P, et al. The contribution of soil organic matter fractions to carbon and nitrogen mineralization and microbial community size and structure[J]. Soil Biology and Biochemistry, 2005, 37(9):1726-1737.
• [14] Zuo X, Zhao X, Zhao H, et al. Spatial heterogeneity of soil properties and vegetation–soil relationships following vegetation restoration of mobile dunes in Horqin Sandy Land, Northern China[J]. Plant and Soil, 2009, 318(1-2):153-167.
• [15] Hobbie SE, Gough L. Foliar and soil nutrients in tundra on glacial landscapes of contrasting ages in northern[J]. Oecologia, 2016, 131(3):453-462.
• [16] Don A, Schumacher J, Scherer-Lorenzen M. Spatial and vertical variation of soil carbon at two grassland sites-implications for measuring soil carbon stocks[J]. Geoderma, 2007, 141(3-4):272-282.
• [17] Tian HQ, Chen GS, Zhang C, et al. Pattern and variation of C:N:P ratios in China’ s soils:A synthesis of observational data[J].Biogeochemistry, 2010, 98:139-151.
• [18] Zhou W, Han G, Liu M, et al. Effects of soil pH and texture on soil carbon and nitrogen in soil profiles under different land uses in Mun River Basin, Northeast Thailand[J]. PeerJ, 2019, 7:e7880.
• [19] Kemmitt SJ, Wright D, Goulding KW, et al. pH regulation of carbon and nitrogen dynamics in two agricultural soils[J]. Soil Biology and Biochemistry, 2006, 38(5):898-911.
• [20]魏强，凌雷，柴春山，等.甘肃兴隆山森林演替过程中的土壤理化性质[J].生态学报，2012,32(15):4700-4713.