川西亚高山2种典型针叶林土壤碳氮磷和碳稳定同位素分布特征

doi:10.16036/j.issn.1000-2650.2021.03.011

摘要/Abstract

摘要： 【目的】为揭示川西亚高山针叶林土壤剖面碳、氮、磷和稳定碳同位素分布特征。【方法】以川西亚高山两种典型针叶林岷江冷杉林（Abies faxoniana）和粗枝云杉林（Picea asperata）为研究对象,分析其土壤剖面各层碳、氮、磷含量和稳定同位素组成特征。【结果】①川西亚高山岷江冷杉林土壤碳氮磷含量分别为35~400、2~13.5和0.2~0.6 g/kg,δ¹³C为-33.4‰~-24.1‰; 粗枝云杉林土壤碳氮磷含量分别为50~360、1~12和0.2~0.6 g/kg,δ¹³C为-37.0‰~-24.3‰;②两种林型土壤碳、氮含量均随土层深度增加而降低,磷含量在土壤有机层显著低于矿质层;③土壤碳含量与氮含量呈显著正相关,碳、氮含量均与δ¹³C呈显著负相关;④土层和林型均显著影响土壤碳、氮含量和¹³C的分布。【结论】川西亚高山针叶林土壤碳氮磷和碳稳定同位素分布特征均受到林型和土壤层次的显著影响,且碳稳定同位素组成与碳氮含量呈负相关。研究结果可为深入了解该区域针叶林森林生态系统碳和养分循环过程提供科学依据。

关键词: 针叶林, 碳氮磷, δ¹³C, 土壤, 亚高山

Abstract: 【Objective】 To understand the distribution characteristics of carbon, nitrogen, phosphorus and stable carbon isotopes in the soil profile of subalpine coniferous forests in Western Sichuan. 【Method】 Taking two typical coniferous forests in western Sichuan, Abies faxoniana and Picea asperata as the research objects, the content of carbon, nitrogen, phosphorus and stable isotopic composition of each layer of the soil profile were analyzed. 【Result】 ①The content of soil carbon, nitrogen and phosphorus in the Abies faxoniana forest in western Sichuan were 35-400, 2-13.5 and 0.2-0.6 g/kg, respectively the δ¹³C was -33.4‰--24.1‰; the content of soil carbon, nitrogen and phosphorus in the Picea asperata forest were 50-360, 1-12, and 0.2-0.6 g/kg, respectively, the δ¹³C is -37.0‰--24.3‰;②The soil carbon and nitrogen contents of the two forest types decreased with the increase of soil depth. Phosphorus content in the soil organic layer was significantly lower than that in the mineral layer;③Soil carbon content was significantly positively correlated with nitrogen content, and both carbon and nitrogen contents were significantly negatively correlated with δ¹³C;④Both soil layer and forest type significantly affected the soil carbon, nitrogen content and ¹³C distribution. 【Conclusion】 The distribution characteristics of soil carbon, nitrogen, phosphorus and stable carbon isotopes of subalpine coniferous forests in Western Sichuan were all significantly affected by forest types and soil layers, and the δ¹³C negatively correlated with carbon and nitrogen contents. The research results would provide scientific data for deeply understanding the carbon and nutrients cycling processes in subalpine coniferous forest ecosystems.

Key words: coniferous forest, CNP, δ¹³C, soil, subalpine

中图分类号:

S714.8

古韬, 王华, 刘瑞, 杨玉婷, 谭波, 张丽, 徐振锋, 李晗. 川西亚高山2种典型针叶林土壤碳氮磷和碳稳定同位素分布特征[J]. 四川农业大学学报, 2021, 39(3): 355-361.

GU Tao, WANG Hua, LIU Rui, YANG Yuting, TAN Bo, ZHANG Li, XU Zhenfeng, LI Han. Characteristics of C N P and Carbon Stable Isotope in Two Subalpine Coniferous Forests of Western Sichuan[J]. Journal of Sichuan Agricultural University, 2021, 39(3): 355-361.

参考文献

[1] AERTS R, BERENDSE F.Above-ground nutrient turnover and net primary production of an evergreen and a deciduous species in a heathland ecosystem[J]. Journal of Ecology, 1989, 77(2): 343-356.
[2] 曾冬萍, 蒋利玲, 曾从盛, 等. 生态化学计量学特征及其应用研究进展[J]. 生态学报, 2013, 33(18): 5484-5492.
[3] WANG Y P, LAW R M, PAK B.A global model of carbon, nitrogen and phosphorus cycles for the terrestrial biosphere[J]. Biogeosciences, 2010, 7(7): 2261-2282.
[4] 李贵才, 韩兴国, 黄建辉, 等. 森林生态系统土壤氮矿化影响因素研究进展[J]. 生态学报, 2001, 21(7): 1187-1195.
[5] 王庆仁, 李继云, 李振声. 高效利用土壤磷素的植物营养学研究[J]. 生态学报, 1999, 19(3): 129-133.
[6] 赵耀, 王百田, 李萌, 等. 晋西吕梁山区3种森林碳氮磷生态化学计量特征[J]. 应用与环境生物学报, 2018, 24(3): 518-524.
[7] 刘微, 吕豪豪, 陈英旭, 等. 稳定碳同位素技术在土壤-植物系统碳循环中的应用[J]. 应用生态学报, 2008, 19(3): 674-680.
[8] BALESDENT J, GIRARDIN C, MARIOTTI A.Site-related δ¹³C of tree leaves and soil organic-matter in a temperate forest[J]. Ecology, 1993, 74(6): 1713-1721.
[9] 陈庆强, 沈承德, 孙彦敏, 等. 土壤有机碳含量与同位素特征[J]. 生态学杂志, 2007, 26(9): 1327-1334.
[10] FANF H J, CHENG S L, YU G R, et al.Nitrogen deposition impacts on the amount and stability of soil organic matter in an alpine meadow ecosystem depend on the form and rate of applied nitrogen[J]. European Journal of Soil Science, 2014, 65(4): 510-519.
[11] DEL G I, SIX J, PERESSOTTI S, et al.Assessing the impact of land-use change on soil C sequestration in agricultural soils by means of organic matter fractionation and stable C isotopes[J]. Global Change Biology, 2003, 9(8): 1204-1213.
[12] 于贵瑞, 王绍强, 陈泮勤, 等. 碳同位素技术在土壤碳循环研究中的应用[J]. 地球科学进展, 2005, 20(5), 568-577.
[13] 冯瑞芳, 杨万勤, 张健, 等. 模拟大气CO₂浓度和温度升高对亚高山冷杉林土壤酶活性的影响[J]. 生态学报, 2007, 27(10): 4019-4026.
[14] 谭波, 吴福忠, 杨万勤, 等. 冻融末期川西亚高山/高山森林土壤水解酶活性特征[J]. 应用生态学报, 2011, 22(5): 1162-1168.
[15] 杨万勤, 邓仁菊, 张健. 森林凋落物分解及其对全球气候变化的响应[J]. 应用生态学报, 2007, 18(12): 2889-2895.
[16] ZHANG L, REN Y Z, YANG K J, et al.Immediate and legacy effects of snow exclusion on soil fungal diversity and community composition[J]. Forest Ecosystems, 2021, 8(22): 1-11.
[17] REN Y, ZHANG L, YANG K, et al.Short-term effects of snow cover manipulation on soil bacterial diversity and community composition[J]. Sci Total Environ, 2020, 741(1): 140454.
[18] WU F, PENG C, YANG W, et al.Admixture of alder (Alnus formosana) litter can improve the decomposition of eucalyptus (Eucalyptus grandis) litter[J]. Soil Biol Biochem, 2014, 73(1): 115-121.
[19] 张远东, 刘彦春, 顾峰雪, 等. 川西亚高山五种主要森林类型凋落物组成及动态[J]. 生态学报, 2019, 39(2): 502-508.
[20] 国家林业和草原局. LY/T1237-1999 森林土壤有机质的测定及碳氮比的计算[S].
[21] 国家林业和草原局. LY/T1228-1999 森林土壤全氮的测定[S].
[22] 国家林业和草原局. LY/T1232-1999 森林土壤全磷的测定[S].
[23] 吴丹丹, 葛晨东, 高抒, 等. 长江口沉积物碳氮元素地球化学特征及有机质来源分析[J]. 地球化学, 2001, 41(3): 207-215.
[24] 金鑫鑫, 汪景宽, 孙良杰, 等. 稳定¹³C 同位素示踪技术在农田土壤碳循环和团聚体固碳研究中的应用进展[J]. 土壤, 2017, 49(2): 217-224.
[25] 刁浩宇, 王安志, 袁凤辉, 等. 长白山阔叶红松林演替序列植物-凋落物-土壤碳同位素特征[J]. 应用生态学报, 2019, 30(5): 1435-1444.
[26] 贺若阳, 杨万勤, 杨开军, 等. 川西亚高山3种森林土壤碳氮磷及微生物生物量特征[J]. 应用与环境生物学报, 2016, 22(4): 606-611.
[27] 谌贤, 刘洋, 邓静, 等. 川西亚高山森林凋落物不同分解阶段碳氮磷化学计量特征及种间差异[J]. 植物研究, 2017, 37(2): 216-226.
[28] 邓仁菊, 杨万勤, 张健, 等. 川西亚高山森林土壤有机层碳、氮、磷储量特征[J]. 应用与环境生物学报, 2007, 13(4): 492-496.
[29] 白小芳, 徐福利, 王渭玲, 等. 华北落叶松人工林土壤碳氮磷生态化学计量特征[J]. 中国水土保持科学, 2015, 13(6): 68-75.
[30] 文丽, 雷丕锋, 戴凌. 不同林龄樟树林土壤碳氮贮量及分布特征[J]. 中南林业科技大学学报, 2014, 34(6): 106-111.
[31] 彭佩钦, 张文菊, 童成立, 等. 洞庭湖湿地土壤碳、氮、磷及其与土壤物理性状的关系[J]. 应用生态学报, 2005, 16(10): 1872-1878.
[32] 王长庭, 龙瑞军, 王启基, 等. 高寒草甸不同海拔梯度土壤有机质氮磷的分布和生产力变化及其与环境因子的关系[J]. 草业学报, 2005, 14(4): 15-20.
[33] 周正虎, 王传宽, 张全智. 土地利用变化对东北温带幼龄林土壤碳氮磷含量及其化学计量特征的影响[J]. 生态学报, 2015, 35(20): 6694-6702.
[34] 吕金林, 闫美杰, 宋变兰, 等. 黄土丘陵区刺槐、辽东栎林地土壤碳、氮、磷生态化学计量特征[J]. 生态学报, 2017, 37(10): 3385-3393.
[35] 曹娟, 闫文德, 项文化, 等. 湖南会同3个林龄杉木人工林土壤碳、氮、磷化学计量特征[J]. 林业科学, 2015, 51(7): 1-8.