喀斯特原生乔木林和次生林土壤氮矿化特征

赵文君; 崔迎春; 吴鹏; 刘延惠; 丁访军; 侯贻菊; 舒德远

doi:10.3969/j.issn.1000-2006.201612014

喀斯特原生乔木林和次生林土壤氮矿化特征

赵文君，崔迎春，吴鹏，刘延惠，丁访军，侯贻菊，舒德远

南京林业大学学报（自然科学版） ›› 2017, Vol. 41 ›› Issue (05) : 13-17.

PDF(1424684 KB)

国家林草科技领军期刊
中国精品科技期刊
中国高校百佳科技期刊
江苏省新闻出版政府奖期刊奖
RCCSE林学权威期刊（A+）
CSCD核心期刊
Scopus数据库收录期刊
中文核心期刊
SCD核心期刊

作者加群：102861116

微信公众号：南京林业大学学报

高级检索

PDF(1424684 KB)

南京林业大学学报（自然科学版） ›› 2017, Vol. 41 ›› Issue (05) : 13-17. DOI: 10.3969/j.issn.1000-2006.201612014

专题报道

喀斯特原生乔木林和次生林土壤氮矿化特征

赵文君，崔迎春，吴鹏，刘延惠，丁访军，侯贻菊，舒德远

作者信息 +

Characteristics of soil nitrogen mineralization in a Karst primary forest and a secondary forest

ZHAO Wenjun, CUI Yingchun, WU Peng, LIU Yanhui, DING Fangjun^*, HOU Yiju, SHU Deyuan

Author information +

文章历史 +

摘要

【目的】探究喀斯特森林土壤氮矿化特征及供氮能力。【方法】以贵州喀斯特原生乔木林和次生林为研究对象,采用树脂芯法,原位连续培养测定土壤氮矿化/硝化动态特征。【结果】①喀斯特原生乔木林和次生林土壤无机氮含量随培养时间延长存在明显的变化,NH⁺₄-N含量呈先增加后减少再增加趋势,NO^-₃-N含量表现为总体增加趋势。NH⁺₄-N是土壤有效氮的主要存在形式,其含量占土壤无机氮的84.57%～94.31%。②两演替群落土壤氮矿化速率呈“V”形变化,范围分别为-0.43～0.97 mg/(kg·d)和-0.91～1.43 mg/(kg·d); 硝化速率呈波动上升趋势,范围分别为0.21～0.49 mg/(kg·d)和0.03～0.31 mg/(kg·d)。③原生乔木林土壤无机氮含量、矿化速率、氨化速率和硝化速率均高于次生林。④原生乔木林土壤氮全年净矿化总量170.82 kg/(hm²·a),是次生林的2.48倍,两种林分土壤净硝化氮分别占净矿化氮的95%和100%。【结论】喀斯特森林土壤供氮能力较强,但土壤氮矿化过程中氮硝化占主导,表明土壤中植物可利用的氮素易于淋溶或挥发损失。

Abstract

【Objective】This study explored the characteristics of nitrogen(N)mineralization and nitrogen supply capacity in a Karst primary forest and a secondary forest.【Method】A Karst primary forest and a secondary forest were chosen as study sites. Temporal variations in soil N mineralization and nitrification were determined in situ by continuous incubation by using the resin-core method.【Result】① With an increase in incubation time, the content of soil inorganic N in both the primary forest and the secondary forest showed pronounced variation. The NH⁺₄-N contents firstly increased, then decreased and finally increased, while NO^-₃-N contents generally increased. The NH⁺₄-N was the main form of inorganic N, and accounted for 84.57%-94.31% of the soil inorganic nitrogen. ② The mineralization rate had a ‘V' shape, and its ranges in primary forest and secondary forest were -0.43-0.97 mg/(kg·d)and -0.91-1.43 mg/(kg·d), respectively. Nitrification rates tended to increase, and were 0.21-0.49 mg/(kg·d), 0.03-0.31 mg/(kg·d), respectively. ③ The inorganic N content and rates of net nitrogen mineralization, nitrification, and ammonification in the primary forest were higher than those in the secondary forest. ④ The annual net amount of N mineralization was 170.82 kg/(hm²·a)in the Karst primary forest, 2.48 times that in the secondary forest. Nitrified N in the primary forest and the secondary forest were 95% and 100%, respectively, of mineralized N.【Conclusion】The soil in the Karst forest had a relatively high capacity for supplying N, and soil nitrification played a dominant role in the process of soil N mineralization, indicating that the available N was volatile or easy to leach.

引用本文

EndNote

Ris (Procite)

Bibtex

导出引用

赵文君，崔迎春，吴鹏，刘延惠，丁访军，侯贻菊，舒德远. 喀斯特原生乔木林和次生林土壤氮矿化特征[J]. 南京林业大学学报（自然科学版）. 2017, 41(05): 13-17 https://doi.org/10.3969/j.issn.1000-2006.201612014

ZHAO Wenjun, CUI Yingchun, WU Peng, LIU Yanhui, DING Fangjun, HOU Yiju, SHU Deyuan. Characteristics of soil nitrogen mineralization in a Karst primary forest and a secondary forest[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2017, 41(05): 13-17 https://doi.org/10.3969/j.issn.1000-2006.201612014

中图分类号： S714

参考文献

[1] REICH P B, GRIGAL D F, ABER J D, et al. Nitrogen mineralization and productivity in 50 hardwood and conifer stands on diverse soils[J]. Ecology,1997, 78(2): 335-347. DOI: 10.1890/0012-9658(1997)078[0335:nmapih]2.0.CO; 2.
[2] 殷睿,徐振锋,吴福忠,等.川西亚高山不同海拔3种森林群落土壤氮转化的季节动态[J].林业科学,2014,50(7):1-7.DOI:10.11707/j.1001-7488.20140701. DUAN R, XU Z F, WU F Z, et al. Seasonal dynamics of soil nitrogen transformation along subalpine elevational gradient of western Sichuan [J]. Scientia Silvae Sinicae,2014,50(7):1-7.
[3] 傅民杰,王传宽,王颖,等.四种温带森林土壤氮矿化与硝化时空格局[J]. 生态学报,2009,29(7):3747-3758.DOI:10.3321/j.issn:1000-0933.2009.07.036. FU M J, WANG C K, WANG Y, et al. Temporal and spatial patterns of soil nitrogen mineralization and nitrification in four temperate forests[J].Acta Ecologica Sinica, 2009,29(7):3747-3758.
[4] LUO Y Q,SU B,CURRIE W S, et al. Progressive nitrogen limitation of ecosystem responses to rising atmospheric carbon dioxide[J]. Bio Science, 2004,54(8):731-739. DOI:10.1641/0006-3568(2004)054[0731:pnloer]2.0.CO; 2.
[5] 周才平,欧阳华.长白山两种主要林型下土壤氮矿化速率与温度的关系 [J].生态学报,2001,21(9):1469-1473.DOI:10.3321/j.issn:1000-0933.2001.09.011. ZHOU C P, OUYANG H. Effect of temperature on nitrogen mineralization at optimum and saturated soil water content in two types of forest in Changbai Mountain[J].Acta Ecologica Sinica,2001,21(9):1469-1473.
[6] 陈伏生,余焜,甘露,等. 温度、水分和森林演替对中亚热带丘陵红壤氮素矿化影响的模拟实验 [J].应用生态学报,2009,20(7):1529-1535.DOI:10.13287/j.1001-9332.2009.0263. CHEN F S, YU K, GAN L,et al. Effects of temperature, moisture and forest succession on nitrogen mineralization in hillside red soils in mid-subtropical region, China [J]. Chinese Journal of Applied Ecology, 2009,20(7):1529-1535.
[7] ZAMAN M, CHANG S X. Substrate type, temperature and moisture content affect gross and net N mineralization and nitrification rates in agroforestry systems[J].Biology and Fertile of Soils,2004,39(4):269-279. DOI:10.1007/s00374-003-0716-0.
[8] INESON P,TAYLOR K, HARRISON A F, et al. Effects of climate change on nitrogen dynamics in upland soil.1: a transplant approach[J].Global Change Biology,1998,4(2):143-152.DOI:10.1046/j.1365-2486.1998.00118.x.
[9] 高建梅,董丽媛,胡古,等.哀牢山中山湿性常绿阔叶林土壤氮转化的海拔效应[J].生态学杂志,2011,30(10):2149-2154.DOI:10.13292/j.1000-4890.2011.0285. GAO J M, DONG L Y, HU G, et al. Attitude effect of soil nitrogen transformation in a montane evergreen broadleaved forest in Ailao Mountains of Southwest China[J]. Chinese Journal of Ecology,2011,30(10):2149-2154.
[10] 苏波,韩兴国,渠春梅,等.东灵山油松纯林和油松-辽东栎针阔混交林土壤氮素矿化/硝化作用研究[J].植物生态学报,2001,25(2):195-203.DOI:10.3321/j.issn:1005-264X.2001.02.009. SU B, HAN X G, QU C M, et al. Net nitrogen mineralization and nitrification in one pure(Pinus tabulaeformis)forest and pine-oak mixed forest in Dongling Mountainous region[J]. Chinese Journal of Plant Ecology,2001,25(2):195-203.
[11] 刘星岑,魏江生,周梅,等.兴安落叶松林土壤的无机态氮及氮矿化速率[J].东北林业大学学报,2014,42(4):60-64.DOI:10.3969/j.issn.1000-5382.2014.04.013. LIU X C, WEI J S, ZHOU M, et al.Inorganic nitrogen content and nitrogen mineralization rates in Larix gmelinii forest soil[J]. Journal of Northeast Forestry University, 2014, 42(4):60-64.
[12] 段伟,闫文德,王光军,等.樟树与马尾松群落净土壤氮矿化速率的比较 [J].中南林业科技大学学报,2010,30(3):12-17.DOI:10.3969/j.issn.1673-923X.2010.03.002. DUAN W, YAN W D, WANG G J,et al. Comparison of net nitrogen mineralization in soils of Cinnamomum camphora and Pinus massoniana communities[J]. Journal of Central South University of Forestry & Technology, 2010,30(3):12-17.
[13] 孟盈,薛敬意,沙丽清,等.西双版纳不同热带森林下土壤铵态氮和硝态氮动态研究[J].植物生态学报,2001,25(1):99-104.DOI:10.3321/j.issn:1005-264X.2001.01.016. MENG Y, XUE J Y, SHA L Q,et al. Variations of soil NH⁺₄-N, NO^-₃-N and N mineralization under different forests in Xishuangbanna, Southwest China [J].Chinese Journal of Plant Ecology,2001, 25(1):99-104.
[14] 赵文君,吴鹏,崔迎春,等.喀斯特原生乔木林和次生林土壤呼吸研究[J].林业科技开发,2015,29(2):105-110.DOI:10.13360/j.issn.1000-8101.2015.02.026. ZHAO W J, WU P, CUI Y C, et al. Study on the soil respiration under Karst primary forest and secondary forest[J]. China Forestry Science and Technology, 2015,29(2):105-110.
[15] 吴鹏,崔迎春,赵文君,等.改变凋落物输入对喀斯特森林主要演替群落土壤呼吸的影响[J].北京林业大学学报,2015,37(9):17-27.DOI:10.13332/j.1000-1522.20150052. WU P, CUI Y C, ZHAO W J, et al. Effects of litter exclusion and addition on soil respiration of major forest communities at two successional stages in Maolan Karst forest of southwestern China [J]. Journal of Beijing Forestry University, 2015, 37(9):17-27.
[16] HUBNERC,REDL G,WURST F. In situ methodology for studying N mineralization in soils using anion exchange resins[J]. Soil Biology and Biochemistry,1991,23(7):701-702.DOI:10.1016/0038-0717(91)90086-Y.
[17] 吴鹏,崔迎春,杨婷,等.茂兰喀斯特森林主要演替群落土壤呼吸研究[J].南京林业大学学报(自然科学版),2013,37(4):57-62.DOI:10.3969/j.issn.1000-2006.2013.04.011. WU P, CUI Y C, YANG T, et al. Soil respiration of major successional communities in the Maolan Nature Reserve of Karst areas [J].Journal of Nanjing Forestry University(Natural Sciences Edition), 2013,37(4):57-62.
[18] 国家林业局.LY/T 1231—1999,1230—1999,1215—1999. 森林土壤分析方法[S]. 北京:中国标准出版社,1999:22-23,82-83,85-86.
[19] 莫江明,彭少麟,方运霆,等. 鼎湖山马尾松针阔叶混交林土壤有效氮动态的初步研究 [J].生态学报,2001,21(3):492-497.DOI:10.3321/j.issn:1000-0933.2001.03.024. MO M J, PENG S L, FANG Y T, et al.A preliminary study on the dynamics of bio-available nitrogen in soils of pine-broadleaf mixed forest in Dinghushan Biosphere Reserve[J]. Acta Ecologica Sinica,2001,21(3):492-497.
[20] 刘方,王世杰,罗海波,等.喀斯特森林生态系统的小生境及其土壤异质性[J].土壤学报,2008,45(6):1055-1062.DOI:10.3321/j.issn:0564-3929.2008.06.007. LIU F, WANG S J, LUO H B,et al. Micro-habitats in Karst forest ecosystem and variability of soils [J]. Acta Pedologica Sinica, 2008,45(6):1055-1062.
[21] FARLEY R A, FITTER A H. Temporal and spatial variation in soil resources in a deciduous woodland [J]. Journal of Applied Ecology, 1999, 87(4): 688-696.DOI:10.1046/j.1365-2745.1999.00390.x.
[22] 段伟. 亚热带樟树和马尾松林土壤氮矿化的动态研究[D].长沙: 中南林业科技大学,2010. DOI:10.7666/d.Y1848781. DUAN W. Dynamic of soil nitrogen mineralization in the subtropoical forest of Cinnamomu camphora and Pinus massoniana [D]. Changsha: Central South University of Forestry and Technology, 2010.
[23] 刘艳玲. 长白山森林生态系统土壤氮矿化的研究[D].北京:北京林业大学,2008. LIU Y L. A study on the nitrogen of Chanbai Mountain forest ecosystems[D]. Beijing: Beijing Forest University, 2008.
[24] 李铭,朱利川,张全发,等.不同土地利用类型对丹江口库区土壤氮矿化的影响[J].植物生态学报,2012,36(6):530-538.DOI:10.3724/SP.J.1258.2012.00530. LI M, ZHU L C,ZHANG Q F, et al. Impacts of different land use types on soil nitrogen mineralization in Danjiangkou Reservoir Area, China[J]. Chinese Journal of Plant Ecology,2012,36(6):530-538.
[25] ODUM E P. The strategy of ecosystem development[J]. Science, 1969,164(3877):262-270. DOI:10.1126/science.164.3877.262
[26] 李检舟,沙丽清,王君,等.云南哀牢山中山湿性常绿阔叶林土壤氮矿化季节变化[J].山地学报,2006,24(2):186-192.DOI:10.3969/j.issn.1008-2786.2006.02.011. LI J Z, SHA L Q, WANG J, et al. Seasonal variation of soil nitrogen mineralization in a mountane moist evergreen broad-leaved forest in Ailao Mountains, SW China[J]. Mountain Research, 2006, 24(2):186-192.
[27] 方运霆,莫江明,GUNDERSEN P,等.森林土壤氮素转换及其对氮沉降的响应[J].生态学报,2004,24(7):1523-1531.DOI:10.3321/j.issn:1000-0933.2004.07.030. FANG Y T, MO J M,GUNDERSON P, et al. Nitrogen transformations in forest soils and its responses to atmospheric nitrogen deposition:a review[J].Acta Ecologica Sinica,2004,24(7):1523-1531.

基金

基金项目:贵州省林业厅青年人才基金项目(黔林科合J字[2014]09号,黔林科合J字[2015]14号); 贵州省重大基础研究项目(黔科合JZ字[2014]200212); 贵州森林生态效益监测与评价科技创新人才团队项目(黔科合人才团队[2014]4004号); 贵州省林业科学研究院院士工作站项目(黔科合院士站[2014]4006) 第一作者:赵文君(236135040@qq.com)。*通信作者:丁访军(ding3920034@163.com),研究员。