厦门市常见园林树种滞尘效应及生态特性研究
发布时间：2018-08-22 15:17
【摘要】：连续2年以厦门市区腊肠树、樟树和善提树3种园林树种为试材,研究比较了滞尘量的差异及其生态特性。结果表明:不同园林树种滞尘能力差异显著(P0.05),滞尘量基本表现为腊肠树樟树菩提树,腊肠树的滞尘量是菩提树的2倍左右;对叶面尘粒径分析表明,叶面尘中滞留的颗粒物中大多数是TSP(悬浮颗粒物),同时不同园林树种对PM_(10)和PM_(2.5)均有一定量的吸收,降尘物中PM_(2.5)PM_(10)和TSP相对含量均以腊肠树最高,樟树和菩提树较低,其中3种植物TSP差异并不显著(P0.05);不同树种降尘粒径主要分布在2.5-100μm,叶面降尘中颗粒物牲径集中分布在100μm以下(占99%以上),降尘物主要为在大气中经一定距离漂移的TSP;叶绿素a和叶绿素b赶含量呈现出一致的变化规律,依次表现腊肠树樟树菩提树,可溶性蛋白依次表现腊肠树樟树菩提树,可溶性糖表现为腊肠树菩提树樟树,且三者之间差异均显著(P0.05);不同园林树种比叶重(x)与叶片滞尘能力(y)之间的幂函数关系最佳(P0.001),即比叶重较大的植物滞尘能力则较大。相关性分析表明:厦门市不同园林树种滞尘量与叶片生态特性具有较强的相关性,其中叶绿素的影响较大。
[Abstract]:Three garden tree species, sausage tree, camphor tree and alpine tree in Xiamen urban area for 2 years, were used to study the difference of dust retention and its ecological characteristics. The results showed that the dust retention ability of different garden tree species was significantly different (P0.05). The dust retention amount of sausage tree camphor and sausage tree was about 2 times that of Bodhi tree, and the dust particle size of leaf dust was about 2 times of that of Bodhi tree. Most of the particles remaining in leaf dust were TSP (suspended particulate matter). At the same time, PM10 and PM2.5 were absorbed by different garden trees. The relative contents of PM _ (2.5) PM10 and TSP were the highest in sausages, but lower in camphor and bodhi trees. There was no significant difference in TSP among the three plants (P0.05), the particle size of different tree species was mainly distributed in 2.5-100 渭 m, and the diameter of particulate matter in leaf dust was less than 100 渭 m (more than 99%). The contents of chlorophyll a and chlorophyll b showed the same change rule. In turn, sausage tree camphor, soluble protein, sausage camphor, soluble sugar, sausage, camphor, There were significant differences among the three species (P0.05); the power function relationship between Ye Zhong (x) and leaf dust retention ability (y) was the best (P0. 001), that is, larger than Ye Zhong. The correlation analysis showed that there was a strong correlation between the dust retention of different garden tree species and the ecological characteristics of leaves in Xiamen, especially the effect of chlorophyll.
【作者单位】： 福州大学建筑学院;厦门大学建筑与土木工程学院;
【基金】：福建省自然科学基金面上项目“基于廊道优先理论的福厦城市绿地系统功能评价及其优化研究”(2016J01732)
【分类号】：S688;X513
[Abstract]:Three garden tree species, sausage tree, camphor tree and alpine tree in Xiamen urban area for 2 years, were used to study the difference of dust retention and its ecological characteristics. The results showed that the dust retention ability of different garden tree species was significantly different (P0.05). The dust retention amount of sausage tree camphor and sausage tree was about 2 times that of Bodhi tree, and the dust particle size of leaf dust was about 2 times of that of Bodhi tree. Most of the particles remaining in leaf dust were TSP (suspended particulate matter). At the same time, PM10 and PM2.5 were absorbed by different garden trees. The relative contents of PM _ (2.5) PM10 and TSP were the highest in sausages, but lower in camphor and bodhi trees. There was no significant difference in TSP among the three plants (P0.05), the particle size of different tree species was mainly distributed in 2.5-100 渭 m, and the diameter of particulate matter in leaf dust was less than 100 渭 m (more than 99%). The contents of chlorophyll a and chlorophyll b showed the same change rule. In turn, sausage tree camphor, soluble protein, sausage camphor, soluble sugar, sausage, camphor, There were significant differences among the three species (P0.05); the power function relationship between Ye Zhong (x) and leaf dust retention ability (y) was the best (P0. 001), that is, larger than Ye Zhong. The correlation analysis showed that there was a strong correlation between the dust retention of different garden tree species and the ecological characteristics of leaves in Xiamen, especially the effect of chlorophyll.
【作者单位】： 福州大学建筑学院;厦门大学建筑与土木工程学院;
【基金】：福建省自然科学基金面上项目“基于廊道优先理论的福厦城市绿地系统功能评价及其优化研究”(2016J01732)
【分类号】：S688;X513
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