img

官方微信

  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
高级检索
生物与土壤

祁连山青海云杉(Picea crassifolia)林浅层土壤碳、氮含量特征及其相互关系

  • 牛赟 ,
  • 刘贤德 ,
  • 赵维俊 ,
  • 张学龙
展开
  • 1. 甘肃农业大学 林学院, 甘肃 兰州 730070;
    2. 甘肃省祁连山水源涵养林研究院, 甘肃 张掖 734000
牛赟(1974—),男,甘肃通渭人,博士研究生,高级工程师,主要从事森林和湿地生态学方面的研究。Email:niuyun2028@163.com

收稿日期: 2013-07-29

  修回日期: 2013-10-09

  网络出版日期: 2014-03-20

基金资助

林业公益性行业科研专项(201104009-08);国家自然科学基金重大项目(91125012);国家科技支撑计划项目(2012BAC08B01)资助

Characteristics and Interrelation of Shallow Soil Organic and Total Nitrogen of Picea crassifolia Forest in the Qilian Mountain, Gansu, China

  • Niu Yun ,
  • Liu Xiande ,
  • Zhao Weijun ,
  • Zhang Xuelong
Expand
  • 1. College of Forestry, Gansu Agricultural University, Lanzhou 730070, China;
    2. Academy of Water Resources Conservation Forests in Qilian Mountains of Gansu Province, Zhangye 734000, Gansu, China

Received date: 2013-07-29

  Revised date: 2013-10-09

  Online published: 2014-03-20

摘要

为阐明祁连山青海云杉(Picea crassifolia)林分布带对其土壤碳、氮含量的影响,以分布在祁连山东段和西段的典型青海云杉林为研究对象,通过野外取样和室内分析,论述了青海云杉林浅层土壤碳、氮含量特征及其相互关系。结果表明:(1)祁连山东、西段土壤剖面有机碳含量均随土壤深度的增加而减小,但不同土层差异显著性不同,0~40 cm含量分别为73.57±17.17 g·kg-1和45.85±11.93 g·kg-1;东、西段土壤剖面有机碳储量没有明显的变化规律,0~40 cm有机碳储量分别为205.51±39.44 t·hm-2和134.93±25.80 t·hm-2。(2)祁连山东、西段土壤全氮含量随土层深度变化和不同土层差异显著性变化规律同土壤有机碳含量,0~40 cm全氮含量分别为4.56±0.88 g·kg-1和2.81±0.66 g·kg-1;东、西段土壤全氮储量亦同土壤有机碳储量变化规律,0~40 cm储量分别为12.77±2.08 t·hm-2和8.38±1.56 t·hm-2。(3)祁连山东、西段土壤剖面不同土层C/N比差异显著性变化规律相同,其C/N值分别为15.92±1.24和16.10±2.07;C/N比值大小主要取决于有机碳含量;线性分析表明,土壤有机碳与全氮含之间呈极显著的正相关关系,可用乘幂曲线模型 Y=aXb较好地描述(p<0.01)。上述研究结果可为祁连山水源涵养林建群种青海云杉林的经营和管理提供理论依据和数据支撑。

本文引用格式

牛赟 , 刘贤德 , 赵维俊 , 张学龙 . 祁连山青海云杉(Picea crassifolia)林浅层土壤碳、氮含量特征及其相互关系[J]. 中国沙漠, 2014 , 34(2) : 371 -377 . DOI: 10.7522/j.issn.1000-694X.2013.00278

Abstract

In order to clarify distribution areas of Picea crassifolia forest impact on its soil carbon and nitrogen in the Qilian Mountain through horizontal scale, we selected typical P. crassifolia forest which lives in the eastern and western of the Qilian Mountain as research objects. Through field sampling and laboratory analysis, this paper discussed characteristics and coupling relationships of shallow soil organic and total nitrogen of P. crassifolia forest in the Qilian Mountain. The results showed that: (1)Organic carbon content decreases with the increasing depth of soil profile in the eastern and western of the Qilian Mountain, but significant differences between the soil layers are not identical. The organic carbon content of the soil layer were 73.57±17.17 g·kg-1 and 45.85±11.93 g·kg-1 at 0-40 cm. The organic carbon reserves of soil profile had no obvious changes rule in the eastern and western of the Qilian Mountain, the organic carbon reserves of the soil layer were 205.51±39.44 t·hm-2 and 134.93±25.80 t hm-2 at 0-40 cm. (2) Soil total nitrogen content change with soil depth and different soil and the significant change rule is the same with the soil organic carbon content changes rule. The total nitrogen content of the soil layer were 4.56±0.88 g·kg-1 and 2.81±0.66 g·kg-1 at 0-40 cm. The soil total nitrogen reserves change rule is the same with the soil organic carbon reserves change rule. The total nitrogen reserves of the soil layer were 12.77±2.08 t·hm-2 and 8.38±1.56 t·hm-2 at 0-40 cm. (3) Different soil layer C/N ratio with different significant change rule is the same in the eastern and western of the Qilian Mountain. The C/N values were 15.92±1.24 and 16.10±2.07 and the C/N ratio size mainly depends on the organic carbon content. The linear analysis showed that the soil organic carbon and total nitrogen content were significant positive correlation relationship between them, the regression model Y=aXb(p<0.01) could be used to depict their correlations. The results are expected to provide theoretical basis and data to support the management and administration of water conservation forests edificators, P. crassifolia in the Qilian Mountain.

参考文献

[1] 尹飞虎,李晓兰,董云社,等.干旱半干旱区CO2浓度升高对生态系统的影响及碳氮耦合研究进展[J].地球科学进展,2011,26(2):235-240.
[2] 张鹏,陈年来,张涛.黑河上游山地青海云杉林土壤有机碳特征及其影响因素[J].中国沙漠,2009,29(3):445-450.
[3] 赵维俊,刘贤德,金铭,等.祁连山青海云杉林群落结构特征分析[J].干旱区研究,2012,29(4):615-620.
[4] 解宪丽,孙波,周慧珍,等.不同植被下中国土壤有机碳的储量与影响因子[J].土壤学报,2004,41(5):687-699.
[5] Xu Z F,Hu R,Xiong P,et al.Initial soil responses of to experimental warming in two contrasting forest ecosystems,Eastern Tibetan Plateau,China:nutrient availabilities,microbial properties,and enzyme activities[J].Applied Soil Ecology,2010,46(2):291-299.
[6] 牛瑞雪,赵学勇,刘继亮.黑河中游不同土地覆被土壤水文环境及植被特征[J].中国沙漠,2012,32(6):1590-1595.
[7] 肖以华.冰雪灾害导致的凋落物对亚热带森林土壤碳氮及温室气体通量的影响[D].北京:中国林业科学研究院,2012.
[8] 项文化,黄志宏,闫文德,等.森林生态系统碳氮循环功能耦合研究综述[J].生态学报,2006,26(7):2365-2372.
[9] Knops J M H,Bradley K L,Wedlin D A.Mechanisms of plant species impacts on ecosystem nitrogen cycling[J].Ecology Letters,2002,5:454-466.
[10] Tateno M,Chapin Ⅲ F S.The logic of carbon and nitrogen interactions in terrestrial ecosystems[J].The American Naturalist,1997,149(4):723-744.
[11] 杨全生,刘建泉,汪有奎.甘肃祁连山国家级自然保护区——综合科学考察报告[M].兰州:甘肃科学技术出版社,2008.
[12] 张存杰,郭妮.祁连山区近40年气候变化特征[J].气象,2002,28(12):33-40.
[13] 张鹏,张涛,陈年来.祁连山北麓山体垂直带土壤碳氮分布特征及影响因素[J].应用生态学报,2009,20(3):518-524.
[14] 胡其武,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.
[15] 何志斌,赵文智,刘鹄,等.祁连山青海云杉林斑表层土壤有机碳特征及其影响因素[J].生态学报,2006,26(8):2572-2577.
[16] 常宗强,冯起,司建华,等.祁连山不同植被类型土壤碳储量和碳通量[J].生态学杂志,2008,27(5):681-685.
[17] 李效雄,刘贤德,赵维俊.祁连山青海云杉林动态监测样地群落特征[J].中国沙漠,2013,33(1):94-100.
[18] 国家林业局.LY/T 1952-2011森林生态系统长期定位观测方法[S].南京:凤凰出版社,2011.
[19] 解丽娟,王伯仁,徐明岗,等.长期不同施肥下黑土与灰漠土有机碳储量的变化[J].植物营养与肥料学报,2012,18(1):98-105.
[20] 马帅,赵世伟,李婷,等.子午岭林区不同植被恢复阶段土壤有机碳变化研究[J].水土保持学报,2011,31(3):94-98.
[21] 金铭,李毅,刘贤德,等.祁连山黑河中上游季节冻土年际变化特征分析[J].冰川冻土,2011,33(5):1068-1073.
[22] 徐华君,殷志刚.阿尔泰山区土壤有机碳组成及分布规律研究[J].干旱地区农业研究,2008,26(1):39-42.
[23] 解宪丽,孙波,周慧珍,等.不同植被下中国土壤有机碳的储量与影响因子[J].土壤学报,2004,41(5):687-699.
[24] 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.
[25] Jia G M,Cao J,Wang C,et al.Microbial biomass and nutrients in soil at the different stages of secondary forest succession in Ziwulin,northwest China[J].Forest Ecology and Management,2005,217(1):117-125.
[26] 张祖荣,古德洪.重庆四面山次生植被不同演替阶段土壤理化性质的比较研究[J].林业科学研究,2008,33(6):21-25.
[27] Knops J M H,Tilman D.Dynamics of soil nitrogen and carbon accumulation for 61 years after agricultural abandonment[J].Ecology,2000,81(1):88-98.
文章导航

/