川西高山峡谷区不同类型彩叶林枯落物和土壤生态化学计量特征

摘要/Abstract

摘要： 【目的】探讨川西高山峡谷区不同类型彩叶林生态系统的养分循环和系统稳定机制。【方法】采用野外调查与室内分析相结合的方法,研究了川西高山峡谷区不同类型彩叶林-针叶纯林（落叶松 Larix gmelinii）、针阔混交林（糙皮桦Betula utilis-岷江冷杉Abies faxoniana和白桦Betula platyphylla-云杉Picea asperata-川滇长尾槭Acer caudatum var. prattii）、阔叶纯林（橿子栎Quercus baronii）和阔叶混交林（亮叶桦Betula luminifera-青麸杨Rhus potaninii和橿子栎-白刺花Sophora davidii-黄栌Cotinus coggygria）中地表枯落物和土壤C、N、P的生态化学计量特征。【结果】结果表明,相较于土壤,6种彩叶林中枯落物C和N含量均较高,而P含量较低。不同彩叶林中,枯落物的C、N含量在针叶林中最低,而P含量在阔叶混交林中最低。土壤C、N含量在亮叶桦-青麸杨林中最高,P含量在白桦-云杉-川滇长尾槭林中最高。不同彩叶林间枯落物C/N无显著差异,而土壤C/N在糙皮桦-岷江冷杉林中最高,与其他林型均存在显著差异。枯落物和土壤的C/P和N/P均在亮叶桦-青麸杨林最高。另外,森林枯落物与土壤C、N和P含量间以及C/P和N/P之间存在显著正相关关系。【结论】白桦-云杉-川滇长尾槭林和亮叶桦-青麸杨林具有更丰富的养分含量,为该区域森林的生态建设以及彩叶林的生态效益评价提供了一定的参考依据。

关键词: 高山峡谷区, 枯落物, 土壤, 养分循环, 化学计量比

Abstract: 【Objective】 To investigate the carbon (C), nitrogen (N) and phosphorus (P) characteristics of litter and soil in different types of color-leaf forests in the alpine valley region of Western Sichuan. The results will contribute to a deeper understanding of nutrient cycling and stability mechanisms in forest ecosystems in Alpine Gorge Region. 【Method】 The field investigation and laboratory analysis was com-bined to study the litter and soil C, N, P stoichiometric characteristics in the pure coniferous forest (Larix gmelinii), coniferous and broad-leaved mixed forest (Betula utilis-Abies faxoniana and Betula platyphylla-Picea asperata-Acer caudatum var. prattii), pure broad-leaved forest (Quercus baronii) and broad-leave mixed forest (Betula luminifera-Rhus potaninii and Sophora davidii-Cotinus coggygria) during August 2018. 【Result】 The results showed that the contents of litter C and N in color-leaf forests were higher than that in the soil, while the content of P was lower than that in the soil. Among different types of color-leaf forest, the coniferous forests had the lowest litter C and N contents, while the broad-leaved mixed forests had the lowest litter P content. Betula luminifera-Rhus potaninii forest had the highest soil C and N contents, and Betula platyphylla-Picea asperata-Acer caudatum var. prattii forest had the highest soil P content. There was no significant difference in litter C/N ratio between different forest types. But the ratio of soil C/N in Betula utilis-Abies faxoniana forest was the highest, which was significantly different from other forest types. The Betula luminifera-Rhus potaninii forest had the highest ratio of C/P and N/P in both litter and soil. In addition,the C, N and P contents and C/P and N/P were significantly positively correlated between litter and soil. 【Conclusion】 The Betula platyphylla-Picea asperata-Acer caudatum var. prattii and Betula luminifera-Rhus potaninii have richer nutrient content than other forests. It provided scientific data for the regional forests construction and the ecological benefit evaluation system of colorful forests.

Key words: alpine valley, litter, soil, nutrient cycling, stoichiometry

中图分类号:

S718.5

赵伊博, 方皓月, 江光林, 昝燕, 刘思艺, 刘思凝, 王丽霞, 谭波, 李晗, 游成铭, 徐振锋, 张丽. 川西高山峡谷区不同类型彩叶林枯落物和土壤生态化学计量特征[J]. 四川农业大学学报, 2020, 38(06): 685-692.

ZHAO Yibo, FANG Haoyue, JIANG Guanglin, ZAN Yan, LIU Siyi, LIU Sining, WANG Lixia, TAN Bo, LI Han, YOU Chengming, XU Zhenfeng, ZHANG Li. Stoichiometry Characteristics of Litter and Soil in Different Types of Color-Leaf Forests in the Alpine Valley Region of Western Sichuan[J]. Journal of Sichuan Agricultural University, 2020, 38(06): 685-692.

参考文献 41

[1]	STERNER R W, ELSER J J.Ecological Stoichiometry: The Biology of Elements from Molecules to the Biosphere[M]. Princeton:Princeton University Press, 2002: 440.
[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]	NIKLAS K J, OWENS T, REICH P B, et al.Nitrogen phosphorus leaf stoichiometry and the scaling of plant growth[J]. Ecology Letter, 2005, 8(6): 636-642.
[4]	REICH P B, TJOELKER M G, MACHADO J L, et al.Universal scaling of respiratory metabolism, size and nitrogen in plants[J]. Nature, 2006, 439(7075): 457-463.
[5]	HERBERT D A, WILLIAMS M, RASTETTER E B.A model analysis of N and P limitation on carbon accumulation in Amazonian secondary forest afteralternate land-use abandonmentv[J]. Biogeochemistry, 2003, 65(1): 121-150.
[6]	王维奇, 徐玲琳, 曾从盛, 等. 河口湿地植物活体-枯落物-土壤的碳氮磷生态化学计量特征[J]. 生态学报, 2011, 31(23):7119-7124.
[7]	向云, 程曼, 安韶山, 等. 延河流域不同立地条件下植物-枯落物-土壤生态化学计量学特征[J]. 自然资源学报,2015, 30(10): 1642-1652.
[8]	YANG X F, BAO X L, HU G Q, et al.C:N:P stoichiometry characteristics of litter and soil of forests in Great Xingan Mountains with different fire years[J]. The Journal of Applied Ecology, 2016, 27(5):1359-1367.
[9]	张萍, 章广琦, 赵一娉, 等. 黄土丘陵区不同森林类型叶片-凋落物-土壤生态化学计量特征[J]. 生态学报, 2018, 38(14): 5087-5098.
[10]	李明军, 喻理飞, 杜明凤, 等. 不同林龄杉木人工林植物-凋落物-土壤C、N、P化学计量特征及互作关系[J]. 生态学报,2018, 38(21): 7772-7781.
[11]	冯德枫, 包维楷. 土壤碳氮磷化学计量比时空格局及影响因素研究进展[J]. 应用与环境生物学报, 2017, 23(2): 400-408.
[12]	WILCKE W, OELMANN Y, SCHMITT A, et al.Soil properties and tree growth along an altitudinal transect in Ecuadorian tropical montane forest[J]. Journal of Plant Nutrition and Soil Science, 2008, 171(2): 220-230.
[13]	MOSER G, LEUSCHNER C, HERTEL D, et al.Elevation effects on the carbon budget of tropical mountain forests(S Ecuador): the role of the belowground compartment[J]. Global Chage Bilolgy, 2011,17(6): 2211-2226.
[14]	王琳, 欧阳华, 彭奎, 等. 贡嘎山东坡土壤有机质及氮素分布特征[J]. 地理学报(英文版), 2004, 14(4): 481-487.
[15]	薛晓娟, 李英年, 杜明远, 等. 祁连山东段南麓不同海拔土壤有机质及全氮的分布状况[J]. 冰川冻土, 2009, 31(4): 60-67.
[16]	许安妮, 王宸, 陈润芍, 等. 四川龙溪-虹口常绿阔叶林凋落物与土壤碳、氮、磷化学计量特征分析[J]. 中国农业科技导报, 2019, 21(4):164-173.
[17]	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.
[18]	YANG W Q, WANG K Y, KELLOMKI S, et al.Litter dynamics of three subalpine forests in western Sichuan[J]. Pedosphere, 2005,5(5): 653-659.
[19]	段斐, 吴福忠, 杨万勤, 等. 川西高山峡谷区暗针叶林粗木质残体金属元素贮量特征[J]. 应用与环境生物学报, 2016, 22(4): 623-630.
[20]	张远东, 赵常明, 刘世荣. 川西米亚罗林区森林恢复的影响因子分析[J]. 林业科学, 2005, 41(4): 189-193.
[21]	陈林武, 刘兴良, 牟克华, 等. 川西米亚罗天然林保护区封山育林效果研究[J]. 四川林业科技, 2002, 23(1): 7-14.
[22]	刘一霖, 温娅檬, 李巧玉, 等. 川西高山峡谷区6种森林枯落物的持水与失水特性[J]. 水土保持学报, 2019, 33(5):151-156;162.
[23]	中国林业科学研究院林业研究所. LY/T 1237-1999 森林土壤有机质的测定及碳氮比的计算[S]. 北京: 中国标准出版社,1999: 106-108.
[24]	中国林业科学研究院林业研究所. LY/T 1228-1999 森林土壤全氮的测定[S]. 北京: 中国标准出版社, 1999: 75-77.
[25]	中国林业科学研究院林业研究所. LY/T 1232-1999 森林土壤全磷的测定[S]. 北京: 中国标准出版社, 1999: 88-90.
[26]	TIAN H, CHEN G, 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(1-3): 139-151.
[27]	郭剑芬, 杨玉盛, 陈光水, 等.森林凋落物分解研究进展[J],林业科学, 2006, 42(4): 93-100.
[28]	ASHAGRIE Y, ZECH W, GUGGENBERGER G.Transformation of a Podocarpus falcatus,dominated natural forest into a monoculture Eucalyptus globulus, plantation at Munesa, Ethiopia:soil organic C,N and S dynamics in primary particle and aggregate-size fractions[J]. Agriculture, Ecosystems and Environment, 2005, 106(1):89-98.
[29]	马文济, 赵延涛, 张晴晴, 等. 浙江天童常绿阔叶林不同演替阶段地表凋落物的C ∶ N ∶ P 化学计量特征[J]. 植物生态学报, 2014, 38(8): 833-842.
[30]	郭培培, 江洪, 余树全, 等. 亚热带6 种针叶和阔叶树种凋落叶分解比较[J]. 应用与环境生物学报, 2009, 15(5): 655-659.
[31]	李雪峰, 张岩, 牛丽君, 等. 长白山白桦(Betula platyphlla)纯林和白桦山杨(Populus davidiana)混交林凋落物的分解[J]. 生态学报, 2007, 27(5): 1782-1790.
[32]	宾振钧, 王静静, 张文鹏, 等. 氮肥添加对青藏高原高寒草甸6个群落优势种生态化学计量学特征的影响[J]. 植物生态学报, 2014, 38(3): 231-237.
[33]	李志安, 邹碧, 丁永祯, 等. 森林凋落物分解重要影响因子及其研究进展[J]. 生态学杂志, 2004, 23(6): 77-83.
[34]	张春娜, 延晓冬, 杨剑虹. 中国森林土壤氮储量估算[J]. 西南农业大学学报(自然科学版), 2004, 26(5):572-579.
[35]	胡启武, 欧阳华, 刘贤德. 祁连山北坡垂直带土壤碳氮分布特征[J]. 山地学报, 2006, 24(6):654-661.
[36]	赵维俊, 刘贤德, 金铭, 等. 祁连山青海云杉林叶片-枯落物-土壤的碳氮磷生态化学计量特征[J]. 土壤学报, 2016, 53(2): 477-489.
[37]	赵畅, 龙健,李娟, 等. 茂兰喀斯特原生林不同坡向及分解层的凋落物现存量和养分特征[J]. 生态学杂志, 2018, 37(2): 295-303.
[38]	MCGRODDY M E, DAUFRESNE T, HEDIN L O.Scaling of C∶N∶P stoichiometry in forests worldwide: implications of terrestrial redfield-type ratios[J]. Ecology, 2004, 85(9): 2390-2401.
[39]	张春华, 王宗明, 居为民, 等.松嫩平原玉米带土壤碳氮比的时空变异特征[J]. 环境科学, 2011, 32(5): 1407-1414.
[40]	李丹维, 王紫泉, 田海霞, 等. 太白山不同海拔土壤碳、氮、磷含量及生态化学计量特征[J]. 土壤学报, 2017, 54(1):160-170.
[41]	杜满义, 范少辉, 漆良华, 等. 不同类型毛竹林土壤碳、氮特征及其耦合关系[J]. 水土保持学报, 2010, 24(4): 198-202.