Interception effect of riparian vegetation zone on floats and factors affecting it
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摘要: 河流中漂浮物的存在对水质以及船只的航行造成了严重威胁,而滨岸带植物对河流漂浮物可以起到很好的拦截过滤作用。通过对漓江桂林--阳朔段沿线调查,筛选出漓江岸滩上拦截漂浮物较多的3种典型植被,选择典型样地进行实地调查,对样地内植被形态参数及所拦截漂浮物进行研究,探讨3种植被对漂浮物的拦截效果,并定量分析影响漂浮物拦截效果的因素,对揭示漓江滨岸带非点源污染调控、提高水资源环境具有重要的理论意义和现实价值。结果表明:1)拦截的4类漂浮物中枯草类最多(85.32%),枯枝类其次(11.44%),塑料类第3(2.33%),其他类最少(0.91%)。2)3种植被拦截漂浮物能力表现为水杨梅一叶萩枫杨。3)柔韧性影响漂浮物的拦截效果,水杨梅枝条刚性最强,枝条刚性强时对拦截效果有增强效应。4)3种植被的漂浮物单株拦截量与其冠幅X、冠幅Y、冠幅面积、植被体积、迎水面积均显著相关(P0.01);与基径、高度、一级分枝数之间的相关关系种间差异较大,冠幅对漂浮物拦截量的多少起控制作用。5)在漓江滨岸带水流较缓、洪水压力较小、漂浮物较多的植被退化区域内优先考虑栽植水杨梅,可达到更好的植被恢复及漂浮物拦截效果。Abstract: The existence of floats in the rivers poses serious threats to water quality and ship navigation. Vegetation in riparian buffer play an important role in the interception and filter of floats. Based on the vegetation investigation along Li River from Guilin to Yangshuo, we screened out three typical vegetation which could intercept more floats. Then, we studied the morphological parameters of vegetation and the floats intercepted by them in the selected typical plots, investigated the interception effect of three vegetation on the floats, and quantitatively analyzed the factors affecting it. This has great significance for revealing the non-point pollution control of riparian buffer zones and improving the water resource environment. The results indicated that: 1) among the intercepted floats, the amount of dried grasses was the largest (85.32%), followed dried branches (11.44%), then plastics third (2.33%), and others the least (0.91%). 2) The interception effect of 3 vegetation ranked in Geum aleppicumSuffrutescent securinegaPterocarya stenoptera. 3) The pliability of branches affected interception effects. The rigidity of G. aleppicum’s branch was best, and high rigidity could enhance the interception effect. 4) The amount of floats intercepted by a single plant has significant correlations with crown width X, crown width Y, crown area, volume of vegetation, and riverside area of the plant (P0.01). The correlations of amount of floats with branch diameter, plant height, and number of the first grade branch were quite different by species. And crown width could determine the amount of intercepted floats. 5)It should be prioritized to plant G. aleppicum in the vegetation degradation area where has slower flow, less flood and more floats in riparian buffer zones of Lijiang River, which could achieve better vegetation restoration and interception effect on floats.
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Keywords:
- Lijiang River /
- vegetation /
- float /
- interception effect
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[1] 桂林市人民政府发展研究中心课题组.漓江保护与可持续发展对策研究[J].中共桂林市委党校学报,2011,11(2):23-27. [1] Task Force of Development and Research Center of People’s Government of Guilin. Conservation and sustainable development of Lijiang River[J]. Journal of The Party School of C.P.C Guilin Municipal Committee,2011,11(2):23-27.
[2] 许立巍,郭德钦.漓江水面漂浮物情况调查及处理方式分析[J].轻工科技,2013,6(6):128-129. [2] XU L W, GUO D Q. Lijiang surface float investigation and treatment analysis[J]. Light Industry Science and Technology,2013,6(6):128-129.
[3] 冯正鹏.三峡水库漂浮物问题研究初探[J].水力发电,2003,29(12):27-28. [3] FENG Z P. Preliminary study on the problems of the floating debris of Three Gorges Reservoir[J]. Journal of Hydroelectric Engineering,2003,29(12):27-28.
[4] 任远,王冬梅,信忠保.漓江流域水陆交错带植被配置型式分类及生态特征分析[J].生态学报,2014,34( 15):4423-4434. [4] REN Y, WANG D M, XIN Z B. Classification and ecological characteristics analysis of vegetation arrangement type in land-water ecotone of Li River[J]. Acta Ecologica Sinica,2014,34(15):4423-4434.
[5] 孙尔雨,杨文俊.三峡工程漂污物问题及其治理研究[J].水力发电,2000(4):12-15. [5] SUN E Y, YANG W J. The floating debris of Three Gorges Project and its treatment[J]. Water Power,2000(4):12-15.
[6] 陈鸿丽.三峡工程漂浮物调查及治理措施[J].人民长江,2007,8(5):7-8. [6] CHEN H L. Three Gorges Project floating debris survey and control measures[J]. Yangtze River,2007,8(5):7-8.
[7] 刘瑛,高甲荣,顾岚.基于植物柔韧性的土壤生物工程护岸材料选择[J].北京林业大学学报,2013,35(6):74-79. [7] LIU Y, GAO J R, GU L. Plant material selection for riverbank protection by using soil bioengineering based on plant flexibility[J]. Journal of Beijing Forestry University,2013,35(6):74-79.
[8] 屈志强,刘连友,吕艳丽,等.柔韧性概念在沙生植物中的应用[J].中国沙漠,2012,32(1):42-45. [8] QU Z Q, LIU L Y, LÜ Y L, et al. Application of concept of flexibility in psammophyte research [J]. Journal of Desert Research,2012,32(1):42-45.
[9] MAGDY I, BANA E I, IVAN N, et al. Microenvironmental and vegetation heterogeneity induced by phytogeneticnebk has in an arid coastal ecosystem[J]. Plant and Soil,2002,247:283-293.
[9] TANG Y, LIU L Y, HAS, et al. Comparison on morphology and sand trapping capability of three shrubs in south edge of Mu Us Sandland[J]. Research of Soil and Water Conservation,2008,15(2):44-48.
[10] WANG L, WANG Z, LIU L Y, et al. Field investigation on Salix psammophila plant morphology and airflow structure[J]. Chinese Journal of Applied Ecology,2005,16(11):2007-2011.
[10] 唐艳,刘连友,哈斯,等.毛乌素沙地南缘3种灌草丛形态与阻沙能力的对比研究[J].水土保持研究,2008,15(2):44-48. [11] 王蕾,王志,刘连友,等. 沙柳灌丛植株形态与气流结构野外观测研究[J].应用生态学报,2005,16(11):2007-2011. -
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