Chemical Characteristics of Atmospheric Wet Deposition in Winter and Its Forestry Canopy Interception Mechanism in Red Soil Hilly Area

HAO Zhuo1,2 GAO Yang2 ZHANG Jin-zhong1 YU Gui-rui2

(1.College of Resources and Environment, Southwest University, Chongqing, China 400716)
(2.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China 100101)

【Abstract】In order to disclose the interception mechanism of forestry canopy to atmospheric wet deposition, the concentrations of nutrients (C, N, P, S) and trace elements (K, Ca, Na, Mg, Al, Fe, Mn, Zn) in wet deposition and through fall in winter were monitored in Subtropical Qianyanzhou basin. The results showed that the wet deposition in this area was mainly acid deposition, the pH of which ranged from 3.49 to 7.0. The major components of wet deposition were nitrate (NO3) and sulfate ions (SO42) , the monthly average deposition fluxes of which were 4.68 kg·hm−2and 0.36 kg·hm−2, and trace elements (Zn, K, Ca) with monthly average deposition fluxes of 1.72, 0.56 and 0.36 kg·hm−2, respectively. Non-metallic nutrients such as dissolved organic carbon (DOC), dissolved total nitrogen (DTN), total phosphorus (TP), Ca, Mg and Mn were easy to leach, the dilution rate could reach up to 64.69%, 206.75%, 301.38%, 137.94%, 405.25% and 1 226.60%, respectively. Moreover, the Zn and sulfate ion (SO42−) could be well absorbed by forests canopy, the absorption proportions of which were 73.50%and 12.51%, respectively.

【Keywords】 red soil; wet deposition; canopy interception; through fall; trace metal;

【DOI】

【Funds】 National Natural Science Foundation of China (31570465) Bingwei Young Talents Project of Chinese Academy of Sciences (2012RC202)

Download this article

    References

    [1] Anand M, Ma K M, Okonski A, et al. Characterising biocomplexity and soil microbial dynamics along a smelter damaged landscape gradient [J]. Science of the Total Environment, 2003, 311 (1–3): 247–259.

    [2] Tao Y P, Wu N, Luo P, et al. Study on the Function of Forest in Filtering Wet Deposition of Pollutants [J].Water Resources Protection, 2006, 22 (3): 16–19 (in Chinese).

    [3] Fu M, Zhao W H, Wang H T, et al. Contribution of Atmospheric Wet Deposition to Nutrients in the Yangtze Estuary [J]. Environmental Science, 2008, 29 (10): 2703–2709 (in Chinese).

    [4] Pan Y P, Wang Y S. Atmospheric wet and dry deposition of trace elements at 10 sites in Northern China [J]. Atmospheric Chemistry and Physics, 2015, 15 (2): 951–972.

    [5] Wu F H, Liu T W, Pei Z M, et al. Calcuim Depletion in Forest Ecosystem Induced by Acid Rain:a review [J]. Acta Ecologica Sinica, 2010, 30 (4): 1081–1088 (in Chinese).

    [6] Rodrigo A, Àvila A, RodàF. The chemistry of precipitation, throughfall and stemflow in two holm oak (Quercus ilex L.) forest sunder a contrasted pollution environment in NE Spain [J]. Science of the Total Environment, 2003, 305 (1–3): 195–205.

    [7] Chen Y R.Research of Rainfall Effects on Leaching of Nutrient Elements in the Artificial Splash Pine Forest at Qianyanzhou Experimental Station [J]. RESOURCES SCIENCE, 2000, 22 (1): 65–68 (in Chinese).

    [8] Dovey S B, du Toit B, De Clercq W. Nutrient fluxes in rainfall, throughfall and stemflow in Eucalyptus stands on the Zululand coastal plain, South Africa [J]. Southern Forests: a Journal of Forest Science, 2011, 73 (3–4): 193–206.

    [9] Bhat S, Jacobs J M, Bryant M L. The chemical composition of rainfall and throughfall in five forest communities: a case study in Fort Benning, Georgia [J]. Water, Air and Soil Pollution, 2011, 218 (1–4): 323–332.

    [10] Tao Y P, Wu N, Luo P, et al. Effect of Forest Interception on Wet Pollutant Deposition [J]. Chinese Journal of Eco-Agriculture, 2007, 15 (4): 9–12 (in Chinese).

    [11] Zhan M, Dou Y P, Guo P P, et al. Canopy Buffering of Different Forest Types under Acid Rain in Tianmu Mountain [J]. Journal of Zhejiang Forestry Science and Technology, 2010, 30 (2): 26–30 (in Chinese).

    [12] Sun S Q, Wang Y J, Wang Y Q, et al. Rainfall Process and Nitrogen Input in Three Typical Forests of Jinyun Mountain [J]. Environmental Science, 2014, 35 (3): 1081–1090 (in Chinese).

    [13] Dohnal M, , VotrubováJ, et al. Rainfall interception and spatial variability of throughfall in spruce stand [J]. Journal of Hydrology and Hydromechanics, 2014, 62 (4): 277–284.

    [14] Zhang N, Qiao Y N, Liu X Z, et al. Nutrient Characteristics in Incident Rainfall, Throughfall, and Stemflow in Monsoon Evergreen Broad-leaved Forestat Dinghushan [J]. Journal of Tropical and Subtropical Botany, 2010, 18 (5): 502–510 (in Chinese).

    [15] Burbano-Garcés M L, Figueroa-Casas A, Peña M. Bulk precipitation, throughfall and stemflow deposition of N-NH+4, NNH3 and N-NO3 in an Andean Forest [J]. Journal of Tropical Forest Science, 2014, 26 (4): 446–457.

    [16] Liang X D, Sun X H, Sun Z H, et al. Nutrient Characteristics of Throughfall in Larixolgensis Plantation [J]. Journal of Northeast Forestry University, 2010, 38 (7): 22–24 (in Chinese).

    [17] Hao Z, Gao Y, Zhang J Z, et al. Characteristics of Atmospheric Nitrogen Wet Deposition and Associated Impact on N Transport in the Watershed of Red Soil Area in Southern China [J]. Environmental Science, 2015, 36 (5): 1630–1638 (in Chinese).

    [18] Huang Y X, Liao B H, Wang Z K. Effects of Simulated Acid Rains on Al Release and Acidity Changes in Different Horizons in Forest Red Soils [J]. Ecology and Environment, 2005, 14 (4): 478–482 (in Chinese).

    [19] Cai Y L, Li F, Li J Y. A Study on Rainfall Chemistry of Artificial Forests in Red Earth Hilly Area [J]. Journal of Natural Resources, 2003, 18 (1): 99–104 (in Chinese).

    [20] Ren X L, He H L, Liu M, et al. Modeling of Carbon and Water Fluxes of Qianyanzhou Subtropical Coniferous Plantation Using Model-data Fusion Approach [J]. Acta Ecologica Sinica, 2012, 32 (23): 7313–7326 (in Chinese).

    [21] Chen J P, Li Y, Dong S H, et al .Study on N pollution of Water Environment of Agricultural Ecosystem in Qianyanzhou, Jiangxi Province [J].J ournal of Water Resources and Water Engineering, 2012, 23 (6): 51–54 (in Chinese).

    [22] Tu J, Liu Q J, Wang H M. Dynamics of Sap Flow Velocities and its Relationship with Meteorological Factors of Schima Superba Forest in Qianyanzhou Experimental Station [J]. Resources and Environment in the Yangtze Basin, 2014, 23 (2): 267–273 (in Chinese).

    [23] Sheng H C, Cai T J, Zhu D G, et al. Nutrient Characteristics of Through-all and Stem-flow in Virgin Forest of Pinus koraiensis [J]. Journal of Soil and Water Conservation, 2008, 22 (5): 47–51 (in Chinese).

    [24] Chen S J, Tian D L, Yan W D, et al. Hydrochemical Characteristics of Through-fall in Different Layers of Cinnamomum Camphora Plantation [J]. Chinese Journal of Ecology, 2006, 25 (7): 747–752 (in Chinese).

    [25] Bao W, Bao W K, Ding D R, et al. Effects of Forest Vegetation on Water Chemistry of Precipitation [J]. Ecology and Environment, 2004, 13 (1): 112–115 (in Chinese).

This Article

ISSN:0250-3301

CN: 11-1895/X

Vol 36, No. 12, Pages 4403-4413

December 2015

Downloads:2

Share
Article Outline

Abstract

  • 1 Data and method
  • 2 Results and analysis
  • 3 Discussion
  • 4 Conclusion
  • References