文献类型：期刊文献

中文题名：嘉兴市化工区土壤-植物-大气连续体硫氟含量水平变异特征

英文题名：Horizontal Variation of Sulfur and Fluorine Contents within Soil-Plant-Atmosphere Continuum in Chemical Industry Zone of Jiaxing City

作者：颉洪涛[1] 顾沈华[2] 刘丽月[2] 吴小双[2] 虞木奎[1]

第一作者：颉洪涛

机构：[1]华东沿海防护林生态系统国家定位观测研究站//中国林业科学研究院亚热带林业研究所;[2]嘉兴市林特技术推广总站

年份：2017

卷号：26

期号：3

起止页码：473-478

中文期刊名：生态环境学报

外文期刊名：Ecology and Environmental Sciences

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：中国林业科学研究院与浙江省合作项目(16204002);嘉兴市科学技术局公益性应用技术研究计划项目(2014AY21019);浙江省林科院应用技术研究(14204005)

语种：中文

中文关键词：化工区;硫氟污染;SPAC;水平变异;环境修复

外文关键词：chemical industry area; sulfur and fluorine; SPAC; horizontal variation; environmental remediation

分类号：X53;X51

摘要：采用典型设点调查法对嘉兴市北部化工区污染源正西方向上3条样带(分别距污染源100、600和1 200 m)和无污染区(距污染源8 000 m)的土壤、28种绿化树种叶片和空气进行取样分析,以明确该区域土壤-植物-大气连续体(SPAC)硫、氟含量在水平方向上的变异特征。结果表明:土壤硫质量分数随水平距离增加而减少,而土壤氟质量分数先增加后减少;表层土壤硫质量分数最高(0.036%),而20 cm深处土壤氟质量分数最高(35.7 mg?kg^(-1))。乔木、小乔木和灌木叶片硫浓度均随水平距离增加而降低,但叶片氟浓度先增加后降低;各样带上乔木叶片硫浓度均高于小乔木和灌木,而氟浓度则比较接近,灌木叶片硫、氟浓度在水平方向上的变异均大于乔木和小乔木。空气中SO_2质量浓度峰值(0.176 mg?m^(-3))出现在100 m样带上,随水平距离增加而持续减小,但HF质量浓度的峰值(1.487μg?m^(-3))出现在600 m样带上,二者浓度呈现不同的水平变异特征。对土壤、树木叶片和空气硫、氟含量的相关性分析表明:空气中的SO2和HF可能是土壤中的硫和氟的主要来源,凋落物的贡献次之。总体上,研究区SPAC系统硫、氟含量水平变异特征是统一的,3种介质通过相互作用共同调节SPAC系统硫、氟的动态平衡。对于SPAC系统硫、氟含量水平变异特征的认识有利于更好地控制城市工业区硫、氟污染,采取相应的土壤和植物修复措施,营造更加美好的城市生态人居环境。
The field survey method based on typical points was used to conduct the sampling of soil,air and leaves of28tree species along three transects(100,600and1200m away from pollution source separately)in chemical zone of northern Jiaxing and non-polluted area(8000m away from pollution source)to analyze the horizontal variation of sulfur(S)and fluorine(F)contents within Soil-Plant-Atmosphere Continuum(SPAC)in this area.The results showed that soil S mass fraction decreased with increasing horizontal distance while soil F mass fraction increased firstly and then decreased.The S mass fraction reached the highest level in topsoil while F mass fraction came to the maximum at20cm depth profile.Meanwhile leaf S concentrations for arbor,small arbor and shrub decreased with increasing horizontal distance,but F concentrations increased firstly and then decreased.Moreover leaf S concentrations for the arbor were higher than that of small arbors and shrubs on each transect,while leaf F concentrations were comparatively close to each other.Particularly horizontal variations of leaf S and F concentrations of the shrub were both greater than that for arbors and small arbors.And the peak of S〇2concentration appeared at the100m5s transect and continued to decrease with increasing horizontal distance,but HF appeared at the600m5s transect,which showed different horizontal variation characteristics.Through correlation analysis on S and F contents among soil,tree leaves and air it illustrated that the S〇2and HF in air might be the main source of soil S and F while litters contributed secondarily.Overall,the horizontal variation characteristics of S and F within SPAC were basically synchronous in the test area,and the three media jointly regulated the dynamic balance of S and F within SPAC system.The deeper understandings on horizontal variation characteristics of S and F contents within SPAC system is helpful to better control S and F pollution in urban industrial areas,and to take corresponding soil and plant remediation measures to create a much more beautiful urban ecological environment for residents.