新疆阿克苏市绿化树种滞尘能力及影响因素

阿丽亚&#183;拜都热拉, 玉米提&#183;哈力克, 塔依尔江&#183;艾山, 阿不都拉&#183;阿布力孜, Martin Welp

doi:10.7522/j.issn.1000-694X.2014.00023

中国沙漠 >

2015 , Vol. 35 >Issue 2: 322 - 329

DOI: https://doi.org/10.7522/j.issn.1000-694X.2014.00023

生物与土壤

新疆阿克苏市绿化树种滞尘能力及影响因素

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1. 新疆大学资源与环境科学学院/绿洲生态教育部重点实验室, 新疆乌鲁木齐 830046;
2. 埃希施塔特-因戈尔施塔特大学数学与地理学院, 德国埃希施塔特 85071;
3. 埃伯斯瓦尔德应用技术大学森林与环境学院, 德国埃伯斯瓦尔 16255

阿丽亚·拜都热拉(1986-),女(维吾尔族),新疆托克逊人,博士研究生,主要从事城市生态学研究。Email: aliya_12@163.com

收稿日期: 2013-12-11

修回日期: 2014-02-10

网络出版日期: 2015-03-20

基金资助

国家自然科学基金项目(31270742,31360200)

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Dust Retention Capacities of Urban Trees and the Influencing Factors in Aksu, Xinjiang, China

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1. College of Resources & Environmental Science/Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China;
2. Faculty of Mathematics and Geography, Catholic University of Eichstaett-Ingolstadt, Eichstaett 85071, Germany;
3. Faculty of Forest and Environment, Eberswalde University for Sustainable Development, Eberswalde 16255, Germany

Received date: 2013-12-11

Revised date: 2014-02-10

Online published: 2015-03-20

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摘要

干旱区城市绿化树种在截留沙尘、降低大气颗粒污染物浓度、改善城市生态环境方面发挥着不可替代的作用。本文对新疆南部典型绿洲城市——阿克苏市不同功能区的法国梧桐(Platanus acerifolia)、新疆杨(Populus alba var. pyramidalis)、圆冠榆(Ulmus densa)和小叶白腊(Fraxinus sogdiana)的叶片平均滞尘量进行了对比,量化了叶片自身因素、自然因素、人为因素对单位滞尘量的影响程度,并对这3个因素对滞尘量的影响进行了权重分析。结果表明:对同一功能区而言,树种平均滞尘量次序为法国梧桐(5.54 g·m^-2)、新疆杨(2.93 g·m^-2)、圆冠榆(2.50 g·m^-2)、小叶白腊(1.36 g·m^-2)。对不同功能区而言,水泥厂绿化树种叶片平均滞尘量最大,其次为居民区、公园区、交通区、工业区、城郊防护林区。影响树种滞尘能力的3个因素中,人为因素权重最大,贡献率为0.89; 自然因素其次,贡献率为0.45; 而叶片自身因素的影响最低,贡献率为-0.13。可见,在防止沙尘污染时应尽量减轻人为活动所引起的二次扬尘。

关键词： 沙尘污染; 绿化树种; 滞尘能力; 多元回归分析; 绿洲城市

本文引用格式

阿丽亚·拜都热拉, 玉米提·哈力克, 塔依尔江·艾山, 阿不都拉·阿布力孜, Martin Welp . 新疆阿克苏市绿化树种滞尘能力及影响因素[J]. 中国沙漠, 2015 , 35(2) : 322 -329 . DOI: 10.7522/j.issn.1000-694X.2014.00023

Abstract

Urban trees in arid land oasis cities have been playing very important purification role in capturing dust particles, reducing airborne pollutant concentrations and improving of urban ecological environment. In this paper, dust retention capacities of Platanus acerifolia (Ait.), Populus alba var. pyramidalis Bunge, Ulmus densa Litw., Fraxinus sogdiana Bunge at different functional areas of typical oasis city Aksu in Southern Xinjiang were examined under different weather conditions. Human factors, natural factors and tree's own factors which mainly determine the dust retention capacity of urban greening trees were quantitatively analyzed. The results showed that P. acerifolia (Ait.) performed strongest dust retention capacity (5.54 g·m^-2) for the same functional area, followed by P. alba var. pyramidalis Bunge (2.93 g·m^-2), U. densa Litw. (2.50 g·m^-2), F. sogdiana Bunge. (1.36 g·m^-2). For the different functional areas, urban trees in Cement Factory demonstrated highest dust retention capacities, followed by residential areas, parking areas, traffic areas, industrial areas, suburban shelterbelt areas. Among the three influencing factors, human factors was the greatest in contributing dust accumulation on tree leaves, contribution rate was 0.89, tree's own factors was the weakest, contribution rate was -0.13. This indicated that human-induced secondary dust pollution should be focused on dust prevention measurements.

Key words： dust pollution; urban trees; dust retention; multiple regression analyses; oasis city

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