祁连山南坡不同土地利用方式下土壤碳氮含量及通径分析
收稿日期: 2021-03-25
修回日期: 2021-06-23
网络出版日期: 2021-09-24
基金资助
国家重点研发计划项目(2017YFC0404304);青海省自然科学基金项目(2018-ZJ-903);青海省“高端创新人才千人计划”(青人才字[2016]32号);祁连山国家公园青海研究中心开放课题(GKQ2019-1)
Soil carbon and nitrogen content and path analysis under different land use patterns on the southern slope of Qilian Mountains
Received date: 2021-03-25
Revised date: 2021-06-23
Online published: 2021-09-24
以祁连山南坡4种土地利用类型为研究对象,采用野外采样、实验室分析与单因素方差分析方法对不同土地利用方式下浅层（0~20 cm）和深层（20~50 cm）土壤TC（全碳）、TN（全氮）含量及差异显著性进行分析,使用通径分析方法揭示环境因子对土壤TC、TN的直接和间接作用效应。结果表明：（1） 环境因子间相互作用,共同影响土壤碳氮含量。直接作用效应：土壤碳氮相互作用显著,pH对土壤碳氮含量直接作用较小。间接作用效应：土壤含水量（SWC）主要通过TN对浅层土壤TC含量起间接正效应,而pH通过TN对深层土壤TC含量起间接负效应。温度（T）主要通过降水（P）对浅层土壤TN含量起间接负效应,而容重（Pb）通过TC对深层土壤TN含量起间接负效应。（2） 土壤碳氮含量具有明显的“表聚作用”。随土层深度的增加,土壤碳氮含量呈减少趋势。林地土壤碳氮含量最高,显著高于草地和耕地（P<0.05）,但与灌丛差异不显著（P>0.05）,研究区土壤氮含量较高,可为研究区植被生长提供较为充足的氮素养分元素。（3） 土壤碳氮含量受自然环境和人类活动综合影响。
刁二龙,曹广超,曹生奎,袁杰,虞敏,陈真,张卓,童珊,赵美亮 . 祁连山南坡不同土地利用方式下土壤碳氮含量及通径分析[J]. 干旱区研究, 2021 , 38(5) : 1346 -1354 . DOI: 10.13866/j.azr.2021.05.16
Taking the soils under four different land use types on the southern slope of Qilian Mountain as the research object, we used field sampling, laboratory analysis, and one-way ANOVA to analyze the TC and TN contents in surface (0-20 cm) and deep (20-50 cm) layers of soil. A path analysis method was used to reveal the direct and indirect effects of environmental factors on soil TC and TN. The results were as follows. (1) As a direct effect, the soil carbon and nitrogen interaction was significant, but pH had little direct effect on soil carbon and nitrogen content. As an indirect effect, soil water content had a positive effect on TC content in surface soil mainly through TN, whereas pH had an indirect negative effect on TC content in deep soil mainly through TN. Temperature had an indirect negative effect on soil TN content mainly through precipitation, whereas bulk density had an indirect negative effect on soil TN content mainly through TC. (2) Soil carbon and nitrogen content showed obvious “surface polymerization.” The content of soil carbon and nitrogen decreased as soil depth increased. The carbon and nitrogen content of forest soil was the highest; these contents were significantly higher than those found in soil from grassland and cultivated land(P<0.05) but were not significantly different from the contents in shrub soil(P<0.05). The soil nitrogen content in the study area was higher than the national soil nitrogen content grading standard, which could provide sufficient nitrogen nutrient elements for the growth of vegetation in this area. (3) Soil carbon and nitrogen content was affected by the natural environment and human activities. Although this study focused on the effects of natural environmental factors on soil carbon and nitrogen content, the effects of human activities on these contents were not considered; thus, the impact of human activities should be further analyzed future research.
| [1] | 范全城, 柴娜, 李萍, 等. 湿地生态系统C、N、P生态化学计量学特征的研究进展[J]. 科学技术创新, 2019, 23(11): 46-47. |
| [1] | [ Fan Quancheng, Chai Na, Li Ping, et al. Research progress of C, N, P ecological stoichiometry in wetland ecosystem[J]. Scientific and Technological Innovation, 2019, 23(11): 46-47. ] |
| [2] | 王彦龙, 王晓丽, 马玉寿. 坡向对长江源区高寒草地植被生长和土壤养分特征的影响[J]. 草业科学, 2018, 35(10): 2336-2346. |
| [2] | [ Wang Yanlong, Wang Xiaoli, Ma Yushou. Effect of slope aspect on vegetation growth and soil nutrient characteristics of alpine grassland in the source region of Yangtze River[J]. Pratacultural Science, 2018, 35(10): 2336-2346. ] |
| [3] | Zhao Zhenzhen, Zhang Xiangfeng, Dong Shikui, et al. Soil organic carbon and total nitrogen stocks in alpine ecosystems of Altun Mountain National Nature Reserve in dry China[J]. Environmental Monitoring and Assessment, 2019, 191(1): 40. |
| [4] | 段中华, 乔有明, 全小龙, 等. 黄河源区湿地、草地土壤理化性质和碳氮组成及其稳定同位素特征分析[J]. 水土保持学报, 2015, 29(4): 247-252, 315. |
| [4] | [ Duan Zhonghua, Qiao Youming, Quan Xiaolong, et al. Analysis of nitrogen and carbon composition and stable isotope characteristics and physicochemical properties of wetland and grassland soil in source region of the Yellow River[J]. Journal of Soil and Water Conservation, 2015, 29(4): 247-252, 315. ] |
| [5] | 曹丽花, 刘合满, 赵世伟. 退化高寒草甸土壤有机碳分布特征及与土壤理化性质的关系[J]. 草业科学, 2011, 28(8): 1411-1415. |
| [5] | [ Cao Lihua, Liu Heman, Zhao Shiwei. Distribution of soil organic carbon and its relationship with soil physical and chemical properties on degraded alpine meadows[J]. Pratacultural Science, 2011, 28(8): 1411-1415. ] |
| [6] | Spain A V. Influence of environmental conditions and some soil chemical properties on the carbon and nitrogen contents of some tropical Australian rainforest soils[J]. Australian Journal of Soil Research, 1990, 28(6): 825-839. |
| [7] | Homann P S, Kapchinske J S, Boyce A. Relations of mineral-soil C and N to climate and texture: regional differences within the conterminous USA[J]. Biogeochemistry, 2007, 85(3): 303-316. |
| [8] | Sollins P, Homann P, Caldwell B. Stabilization and destabilization of soil organic matter: Mechanisms and controls[J]. Geoderma, 1996, 74: 65-105. |
| [9] | 王淑芳, 王效科, 欧阳志云. 环境因素对密云水库上游流域土壤有机碳和全氮含量影响的通径分析[J]. 生态环境学报, 2014, 23(8): 1378-1383. |
| [9] | [ Wang Shufang, Wang Xiaoke, Ouyang Zhiyun. Path analysis on environmental factors controlling soil organic carbon and total nitrogen contents in the upstream watershed of Miyun Reservoir, North China[J]. Ecology and Environmental Sciences, 2014, 23(8): 1378-1383. ] |
| [10] | 张光德, 赵传燕, 戎战磊, 等. 祁连山中部不同植被类型土壤生态化学计量特征研究[J]. 兰州大学学报(自然科学版), 2019, 55(4): 533-540. |
| [10] | [ Zhang Guangde, Zhao Chuanyan, Rong Zhanlei, et al. Ecological stoichiometry of soils with different vegetation types in the middle part of the Qilian Mountains[J]. Journal of Lanzhou University (Natural Sciences Edition), 2019, 55(4): 533-540. ] |
| [11] | 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. |
| [11] | [ Zhao Weijun, Liu Xiande, Jin Ming, et al. Ecological stoichiometric characteristics of carbon, nitrogen and phosphorus in leaf-litter-soil system of Picea crassifolia forest in the Qilian Mountains[J]. Acta Pedologica Sinica, 2016, 53(2): 477-489. ] |
| [12] | 高之仁. 数量遗传学[M]. 成都: 四川大学出版社, 1986: 198-226. |
| [12] | [ Gao Zhiren. Quantitative Genetics[M]. Chengdu: Sichuan University Press, 1986: 198-226. ] |
| [13] | 刘芳, 曹广超, 曹生奎, 等. 祁连山南坡水体氢氧稳定同位素特征研究[J]. 干旱区研究, 2020, 37(5): 1116-1123. |
| [13] | [ Liu Fang, Cao Guangchao, Cao Shengkui, et al. Hydrogen and oxygen isotope characteristics of water bodies on the southern slope of Qilian Mountains[J]. Arid Zone Research, 2020, 37(5): 1116-1123. ] |
| [14] | Zhao Zhenzhen, Zhang Xiangfeng, Dong Shikui, et al. Soil organic carbon and total nitrogen stocks in alpine ecosystems of Altun Mountain National Nature Reserve in dry China[J]. Environmental Monitoring and Assessment, 2019, 191(1): 40. |
| [15] | 鲍士旦. 土壤农化分析[M]. 第三版. 北京: 中国农业出版社, 2000. |
| [15] | [ Bao Shidan. Soil Agrochemical Analysis[M]. 3rd. Beijing: China Agriculture Press, 2000. ] |
| [16] | 曹生奎, 陈克龙, 曹广超, 等. 草地退化对青海湖流域小蒿草草甸土壤碳密度的影响[J]. 水土保持研究, 2014, 21(1): 71-75. |
| [16] | [ Cao Shengkui, Chen Kelong, Cao Guangchao, et al. Influence of grassland degradation on the soil carbon density of the Kobresia pygmaea meadow in the Qinghai Lake Basin[J]. Research of Soil and Water Conservation, 2014, 21(1): 71-75. ] |
| [17] | 张洋洋. 白龙江流域土壤碳氮磷含量及空间分布特征研究[D]. 兰州: 兰州大学, 2017. |
| [17] | [ Zhang Yangyang. Study on Contents and Spatial Distribution Characteristics of Soil Carbon, Nitrogen and Phosphorus in BailongRiver Basin[D]. Lanzhou: Lanzhou University, 2017. ] |
| [18] | 宋小园, 朱仲元, 刘艳伟, 等. 通径分析在SPSS逐步线性回归中的实现[J]. 干旱区研究, 2016, 33(1): 108-113. |
| [18] | [ Song Xiaoyuan, Zhu Zhongyuan, Liu Yanwei, et al. Application of path analysis in stepwise linear regression SPSS[J]. Arid Zone Research, 2016, 33(1): 108-113. ] |
| [19] | 周艳翔, 吕茂奎, 谢锦升, 等. 深层土壤有机碳的来源、特征与稳定性[J]. 亚热带资源与环境学报, 2013, 8(1): 48-55. |
| [19] | [ Zhou Yanxiang, Lyu Maokui, Xie Jinsheng, et al. Sources, characteristics and stability of organic carbon in deep soil[J]. Journal of Subtropical Resources and Environment, 2013, 8(1): 48-55. ] |
| [20] | 胡亚伟, 孙若修, 申明爽, 等. 晋西黄土区土地利用方式对土壤C: N: P化学计量特征及土壤理化性质的影响[J/OL]. 干旱区研究: 1-12[2021-06-23]. http://kns.cnki.net/kcms/detail/65.1095.X.20210610.1309.003.html. |
| [20] | Hu Yawei, Sun Ruoxiu, Shen Mingshuang, et al. Effects of land use types on the stoichiometric characteristics of soil C: N: P and the physical and chemical properties of soil[J]. Arid Zone Research, 1-12[2021-06-23]. http://kns.cnki.net/kcms/detail/65.1095.X.20210610.1309.003.html. ] |
| [21] | 牛赟, 刘贤德, 赵维俊, 等. 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. |
| [21] | [ Niu Yun, Liu Xiande, Zhao Weijun, et al. Characteristics and interrelation of shallow soil organic and total nitrogen of Picea crassifolia forest in the Qilian Mountain, Gansu, China[J]. Journal of Desert Research, 2014, 34(2): 371-377. ] |
| [22] | 孔君洽, 杜泽玉, 杨荣, 等. 荒漠绿洲农田垦殖过程中耕层土壤碳储量演变特征[J]. 应用生态学报, 2019, 30(1): 180-188. |
| [22] | [ Kong Junqia, Du Zeyu, Yang Rong, et al. Evolutionary characteristics of soil organic carbon storage in soil plough layer under a cropland reclamation process in desert oasis[J]. Chinese Journal of Applied Ecology, 2019, 30(1): 180-188. ] |
| [23] | 崔静, 陈云明, 黄佳健, 等. 黄土丘陵半干旱区人工柠条林土壤固碳特征及其影响因素[J]. 中国生态农业学报, 2012, 20(9): 1197-1203. |
| [23] | [ Cui Jing, Chen Yunming, Huang Jiajian, et al. Soil carbon sequestration characteristics of Caragana microphylla plantations and influencing factor in loess hilly semiarid region[J]. Chinese Journal of Eco-Agriculture, 2012, 20(9): 1197-1203. ] |
| [24] | Jobbágy Esteban G, Jackson, Robert B. The vertical distribution of soil organic carbon and it’s relation to climate and vegetation[J]. Ecological Applications, 2000, 10(2): 423-436. |
| [25] | 何介南, 谢寄托, 肖毅峰, 等. 莽山土壤有机碳及其空间分布格局[J]. 中南林业科技大学学报, 2014, 34(4): 72-76. |
| [25] | [ He Jienan, Xie Jituo, Xiao Yifeng, et al. Studies of soil organic carbon and its spatial distribution in mountain Mangshan[J]. Journal of Central South University of Forestry & Technology, 2014, 34(4): 72-76. ] |
| [26] | 王卫霞, 杨光, 王振锡. 更新方式对天山云杉林土壤碳氮的影响[J]. 新疆农业科学, 2020, 57(8): 1474-1483. |
| [26] | [ Wang Weixia, Yang Guang, Wang Zhenxi. Effects of regeneration patterns on soil carbon and nitrogen in Picea schrenkiana var tianshanica[J]. Xinjiang Agricultural Sciences, 2020, 57(8): 1474-1483. ] |
| [27] | 朱凤武, 徐彩瑶, 濮励杰, 等. 苏北滩涂围垦区土壤碳氮磷含量及其生态化学计量特征[J]. 中国土地科学, 2017, 31(12): 77-83. |
| [27] | [ Zhu Fengwu, Xu Caiyao, Pu Lijie, et al. Effects of reclamation activity on soil C, N and P contents and the stoichiometric characteristics of coastal wetland in Northern Jiangsu Province[J]. China Land Science, 2017, 31(12): 77-83. ] |
| [28] | 张少凤. 锡林郭勒羊草草原不同利用方式下群落与土壤碳氮特征研究[D]. 呼和浩特: 内蒙古大学, 2018. |
| [28] | [ Zhang Shaofeng. Study on the Carbon and Nitrogen Characteristics of Community and Soil for Leymus chinensis Grassland under Different Utilization Ways in Xilingol Steppe[D]. Hohhot: Inner Mongolia University, 2018. ] |
| [29] | 黄郡, 马瑞福, 崔守斌, 等. 不同恢复方式下七星河湿地土壤碳氮磷含量及其生态化学计量特征[J/OL]. 山西大学学报(自然科学版): 1-16[2020-10-11]. |
| [29] | [ Huang Jun, Ma Ruifu, Cui Shoubin, et al. Soil carbon, nitrogen, and phosphorus concentrations and stoichiometry under different wetland restoration methods in Qixing River[J/OL]. Journal of Shanxi University(Natural Science Edition): 1-16[2020-10-11]. ] |
| [30] | 姚拓, 龙瑞军. 天祝高寒草地不同扰动生境土壤三大类微生物数量动态研究[J]. 草业学报, 2006, 15(2): 93-99. |
| [30] | [ Yao Tuo, Long Ruijun. Dynamics of soil microbial population under disturbance in Tianzhu Alpine grassland[J]. Acta Prataculturae Sinica, 2006, 15(2): 93-99. ] |
| [31] | 张瑶瑶. 甘南州草地土壤有机碳、全氮空间分布特征及影响因素分析[D]. 兰州: 兰州大学, 2019. |
| [31] | [ Zhang Yaoyao. Spatial Distribution Characteristics and Influencing Factors of Soil Organic Carbon and Total Nitrogen in Gannan Pastoral Area[D]. Lanzhou: Lanzhou University, 2019. ] |
| [32] | 苟照君. 黄河上游高寒草地土壤碳、氮、磷、pH值分布特征及影响因素[D]. 西宁: 青海师范大学, 2019. |
| [32] | [ Gou Zhaojun. Nitrogen, Study on Distribution Characteristics and Influencing Factors of Soil Carbon, Nitrogen, Phosphorus and pH Value in Alpine Grassland of Upper Yellow River[D]. Xining: Qinghai Normal University, 2019. ] |
| [33] | 白军红, 邓伟, 朱颜明, 等. 霍林河流域湿地土壤碳氮空间分布特征及生态效应[J]. 应用生态学报, 2003, 14(9): 1494-1498. |
| [33] | [ Bai Junhong, Deng Wei, Zhu Yanming, et al. Spatial distribution characteristics and ecological effects of carbon and nitrogen of soil in Huolin River catchment wetland[J]. Chinese Journal of Applied Ecology, 2003, 14(9): 1494-1498. ] |
| [34] | 苗娟, 周传艳, 李世杰, 等. 不同林龄云南松林土壤有机碳和全氮积累特征[J]. 应用生态学报, 2014, 25(3): 625-631. |
| [34] | [ Miao Juan, Zhou Chuanyan, Li Shijie, et al. Accumulation of soil organic carbon and total nitrogen in Pinus yunnanensis forests at different age stages[J]. Chinese Journal of Applied Ecology, 2014, 25(3): 625-631. ] |
/
| 〈 |
|
〉 |