|本期目录/Table of Contents|

[1]车明轩 吴强 方浩 康成芳 吕宸 许蔓菁 宫渊波**.海拔、坡向对川西高山灌丛草甸土壤氮、磷分布的影响[J].应用与环境生物学报,2021,27(02):1-12.[doi:10.19675/j.cnki.1006-687x.2020.04040]
 CHE Mingxuan,WU Qiang,Fang Hao,et al.Effect of elevation and slope aspect on soil nitrogen and phosphorus distribution of the shrub meadow soil in Western Sichuan Plateau[J].Chinese Journal of Applied & Environmental Biology,2021,27(02):1-12.[doi:10.19675/j.cnki.1006-687x.2020.04040]
点击复制

海拔、坡向对川西高山灌丛草甸土壤氮、磷分布的影响()
分享到:

《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
27卷
期数:
2021年02期
页码:
1-12
栏目:
研究论文
出版日期:
2021-04-25

文章信息/Info

Title:
Effect of elevation and slope aspect on soil nitrogen and phosphorus distribution of the shrub meadow soil in Western Sichuan Plateau
作者:
车明轩1 吴强12 方浩13 康成芳14 吕宸1 许蔓菁1 宫渊波1**
1四川农业大学林学院, 成都 611130
2泸州市水务局水利管理站, 泸州 646000
3剑阁县水利工程建设管理总站, 广元 628300
4甘肃省生态环境工程评估中心, 兰州 730000
Author(s):
CHE Mingxuan1 WU Qiang12 Fang Hao13 KANG Chengfang14 LV Chen1 XU Manjing1 GONG Yuanbo1**
1College of Forest, Sichuan Agricultural University, Chengdu 611130
2Water management station of Luzhou Water Authority, Luzhou 646000
3Jiange management station of water conservancy project construction, Guangyuan 628300
4Gansu?Appraisal?Center?for?Eco-Environment?&?Engineering, Lanzhou 730000
关键词:
灌丛草甸土海拔坡向空间分布
Keywords:
shrub-meadow soil elevation slope aspect nitrogen phosphorus spatial distribution
DOI:
10.19675/j.cnki.1006-687x.2020.04040
摘要:
土壤氮(N)、磷(P)是植被生长、发育过程中最重要的养分元素,对生态系统的稳定和植被资源利用的可持续发展有重要意义。为了解川西高山灌丛草甸土壤氮、磷组分的分布状况,对三个海拔梯度(3 800m, 4 000 m, 4 200 m),两个坡向(半阴坡和半阳坡)下的土壤氮、磷组分及土壤理化性质进行研究。结果表明:研究区土壤全氮含量(2.04 ± 0.92 g/kg )较为丰富且高于全国水平,而全磷含量(0.43 ± 0.12 g/kg)则较为缺乏且低于全国水平。与相似植被类型和环境的高山灌丛草甸土相比,较高的氮磷比(N/P, 4.85 ± 1.97 )可能说明磷是研究区内植被生产力的主要限制因子。随海拔升高,土壤含水量的增加和温度的降低有利于土壤有机质的积累,土壤全氮和全磷含量均呈现出增加的趋势。相关分析表明,土壤铵态氮(4.86 ± 1.65 m g/kg)、硝态氮(2.19 ± 1.78 m g/kg)和有效磷(3.18 ± 1.75 mg/kg)与土壤含水量均呈正相关,而与土壤pH均呈负相关。高海拔的硝态氮和有效磷含量显著高于低海拔,而土壤铵态氮在海拔间差异不显著,可能与温度、pH的分布有关。坡向显著改变了土壤水分和pH的分布,半阴坡土壤含有较高的土壤水分和较低的土壤pH,也含有更高的土壤矿质氮和有效磷含量,而土壤全氮和全磷在坡向间差异不显著。本研究表明川西高山灌丛草甸土壤氮、磷组分含量大体呈现出高海拔高于低海拔,阴坡的矿质氮和有效磷高于阳坡的规律;结果对今后高山灌丛草甸氮、磷养分的循环与调控研究提供一定的科学数据与理论依据。(图4 表2 参40 )
Abstract:
Soil nitrogen (N) and phosphorus (P) are the most important nutrient elements for vegetation growth and development, which are also of great significance to ecosystem stability and the sustainable development of the vegetation resources utilization . In order to understand the distribution of soil N and P of the shrub-meadow soil in Western Sichuan Plateau. Soil N and P fractions as well as soil physiochemical properties were investigated under 3 elevations ( 3 800m, 4 000 m, 4 200 m) and 2 slope aspects ( semi-sunny and semi-shady). The results showed that the TN content (2.04 ± 0.92 g/kg) was relatively rich and higher than the national level, whereas the TP content (0.43 ± 0.12 g/kg) was relatively deficient and lower than the national level in study area . Compared with the alpine shrub-meadow soils with similar vegetation types and environments, the higher N/P ratio (N/P, 4.85 ± 1.97) in our study may indicate that P was the main limiting factor for vegetation productivity. With elevation increasing , the increase of soil water content and the decrease of temperature were conducive to SOC accumulation. Both TN and TP trended to increase with increasing elevations. Correlation analysis showed that ammonium nitrogen (NH4+-N; 4.86 ± 1.65 mg/kg), nitrate nitrogen (NO3-N; 2.19 ± 1.78 mg/kg), and available phosphorus (AP; 3.18 ± 1.75 mg/kg) were positively correlated with soil water content, but negatively correlated with soil pH. The content of NO3-N and AP at high elevation was significantly higher than that at low elevation, while there were no significant difference of NH4+-N among elevation gradients, which may be related to the distribution of temperature and pH. The slope aspect significantly affected the distribution of soil water content and pH. The soil in NE slope aspect contained higher soil water content and lower soil pH than SW slope aspect, and also contained higher mineral nitrogen and available phosphorus contents, while the difference between TN and TP was not significant. Our results showed that the content of N and P fractions were generally higher in high elevation than that in low elevation, and the mineral nitrogen and available phosphorus in were higher in NE slope aspect than that in SW slope aspect in alpine shrub meadow soil in western Sichuan Plateau. This conclusion emphasized the influence of elevation and slope aspect on the distribution of soil N and P, and provides some scientific data and theoretical basis for future studies on the N and P cycling and regulation in alpine shrub meadow.

相似文献/References:

[1]范秀华,卢文敏,方晓雨,等.长白山不同海拔岳桦(Betula ermanii)的光合生理[J].应用与环境生物学报,2012,18(04):553.[doi:10.3724/SP.J.1145.2012.00553]
 FAN Xiuhua,LU Wenmin,FANG Xiaoyu,et al.Photosynthetic Physiology of Betula ermanii Along the Altitudes in Changbai Mountains, China[J].Chinese Journal of Applied & Environmental Biology,2012,18(02):553.[doi:10.3724/SP.J.1145.2012.00553]
[2]王晓明,赵秀海,高露双,等.长白山北坡沿海拔梯度岳桦径向生长对气候的响应[J].应用与环境生物学报,2013,19(06):929.[doi:10.3724/SP.J.1145.2013.00929]
 WANG Xiaoming,ZHAO Xiuhai,GAO Lushuang,et al.Climatic Response of Betula ermanii Tree-ring Growth Along an Altitudinal Gradient on the Northern Slope of the Changbai Mountains[J].Chinese Journal of Applied & Environmental Biology,2013,19(02):929.[doi:10.3724/SP.J.1145.2013.00929]
[3]高露双,唐景毅,柳静臣,等.去趋势方法对建立不同海拔鱼鳞云杉-气候关系的影响[J].应用与环境生物学报,2014,20(01):128.[doi:10.3724/SP.J.1145.2014.00128]
 GAO Lushuang,TANG Jingyi,LIU Jingchen,et al.Effect of detrending methods on the relationship establishment between chronologies of Picea jezoenssis var. komarovii and climate factors along altitudinal gradient[J].Chinese Journal of Applied & Environmental Biology,2014,20(02):128.[doi:10.3724/SP.J.1145.2014.00128]
[4]孔维静,夏会娟,张远,等.辽河保护区及其支流河岸草本植物群落数量分析[J].应用与环境生物学报,2015,21(05):904.[doi:10.3724/SP.J.1145.2015.04016]
 KONG Weijing,XIA Huijuan,ZHANG Yuan,et al.Quantitative analysis of riparian herbaceous community in Liaohe River Conservation Area and its tributaries[J].Chinese Journal of Applied & Environmental Biology,2015,21(02):904.[doi:10.3724/SP.J.1145.2015.04016]
[5]李 强,陈 诚 李小林 金 鑫 熊 川,郑林用 黄文丽**.松茸的适宜生态因子[J].应用与环境生物学报,2016,22(06):1096.[doi:10.3724/SP.J.1145.2016.01004]
 LI Qiang,CHEN Cheng,et al.The optimal ecological factors for Tricholoma matsutake[J].Chinese Journal of Applied & Environmental Biology,2016,22(02):1096.[doi:10.3724/SP.J.1145.2016.01004]
[6]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.[doi:10.3724/SP.J.1145.2016.04018]
 FENG Defeng,& BAO Weikai**.Review of the temporal and spatial patterns of soil C:N:P stoichiometry and its driving factors[J].Chinese Journal of Applied & Environmental Biology,2017,23(02):400.[doi:10.3724/SP.J.1145.2016.04018]
[7]孙志鹏,蒲擎宇,尚鹏程,等.云南红豆杉活性成分10-DAB累积分布规律[J].应用与环境生物学报,2019,25(05):1161.[doi:10.19675/j.cnki.1006-687x.2019.01006]
 SUN Zhipeng,Pu Qingyu,SHANG Pengcheng,et al.Cumulative distribution regularities of the active component 10-DAB of Taxus yunnanensis[J].Chinese Journal of Applied & Environmental Biology,2019,25(02):1161.[doi:10.19675/j.cnki.1006-687x.2019.01006]

备注/Memo

备注/Memo:
收稿日期 Received: 2020-04-17 接受日期 Accepted: 2020-06-18
四川省科技厅重点课题(2015FZ0022)和四川省高校重点实验室建设项目
**通讯作者 Corresponding author (E- mail: gyb@sicau.edu.cn)
点击摘要页题目后的“PDF”可下载阅读全文;本文为已录用的作者修定稿,尚未经编辑全面修改。
引用本文请注明出处本刊;发表刊期和页码将以正式出版时的安排为准,但DOI确定不变。
更新日期/Last Update: 2020-07-03