您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Social-Ecological Patterns of Soil Heavy Metals Based on a Self-Organizing Map ( SOM): A Case Study in Beijing, China

文献类型： 外文期刊

作者： Wang, Binwu 1 ; Li, Hong 3 ; Sun, Danfeng 1 ;

作者机构： 1.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China

2.Minist Land & Resources, Key Lab Agr Land Qual, Beijing 100193, Peoples R China

3.Beijing Acad Agr & Forestry Sci, Inst Agr Integrated Dev, Beijing 100097, Peoples R China

关键词： social-ecological patterns;soil heavy metals management;geographical information system;self-organizing map;Beijing

期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH （ 影响因子：3.39； 五年影响因子：3.789 ）

ISSN： 1660-4601

年卷期： 2014 年 11 卷 4 期

页码：

收录情况： SCI

摘要： The regional management of trace elements in soils requires understanding the interaction between the natural system and human socio-economic activities. In this study, a social-ecological patterns of heavy metals (SEPHM) approach was proposed to identify the heavy metal concentration patterns and processes in different ecoregions of Beijing (China) based on a self-organizing map (SOM). Potential ecological risk index (RI) values of Cr, Ni, Zn, Hg, Cu, As, Cd and Pb were calculated for 1,018 surface soil samples. These data were averaged in accordance with 253 communities and/or towns, and compared with demographic, agriculture structure, geomorphology, climate, land use/cover, and soil-forming parent material to discover the SEPHM. Multivariate statistical techniques were further applied to interpret the control factors of each SEPHM. SOM application clustered the 253 towns into nine groups on the map size of 12 x 7 plane (quantization error 1.809; topographic error, 0.0079). The distribution characteristics and Spearman rank correlation coefficients of RIs were strongly associated with the population density, vegetation index, industrial and mining land percent and road density. The RIs were relatively high in which towns in a highly urbanized area with large human population density exist, while low RIs occurred in mountainous and high vegetation cover areas. The resulting dataset identifies the SEPHM of Beijing and links the apparent results of RIs to driving factors, thus serving as an excellent data source to inform policy makers for legislative and land management actions.

  • 相关文献

[1]Integration of large scale fertilizing models with GIS using minimum unit. Tianhong, L,Yanxin, S,An, X.

[2]Looking Forward to Beijing Agricultural Informationization in the 13th five years plan. Qing-feng WEI,Yan TANG,Chang-shou LUO. 2016

[3]Strategy for renewable energy development in rural areas of Beijing. Zhou, Zhongren,Zhou, Liandi. 2013

[4]Distribution characteristics and law of negative air ions in typical garden flora areas of Beijing. Li, Shaoning,Lu, Shaowei,Pan, Qinghua,Zhang, Yuping,Chen, Bo,Yang, Xinbing. 2013

[5]Beijing Agricultural Scientific Technical Information Counseling Service Status and Countermeasure on the New Situations. Luo, C. S.,Wei, Q. F.,Li, Z. M.,Cao, C. Z.,Zheng, Y. M.,Guo, Q.,Luo, C. S.,Wei, Q. F.,Li, Z. M.,Cao, C. Z.,Zheng, Y. M.,Guo, Q.. 2016

[6]Study on the Production and Consumption of Strawberry in Beijing. Wang, L. N.,Zhang, Y. T.,Zhong, C. F.,Wang, G. X.,Dong, J.,Chang, L. L.. 2014

[7]The Development of Agricultural Informatization in Beijing. Tan, C. P.,Sun, S. F.,Zhang, J. F.,Zheng, H. G.. 2015

[8]Seasonal size distribution of airborne culturable bacteria and fungi and preliminary estimation of their deposition in human lungs during non-haze and haze days. Gao, Min,Jia, Ruizhi,Qiu, Tianlei,Han, Meilin,Wang, Xuming,Jia, Ruizhi,Song, Yuan,Gao, Min,Wang, Xuming,Gao, Min. 2015

[9]Current Situation of Eco-environment Construction, Effectiveness, and Study of Development Path in Economically Weak Beijing Rural Area. Zhou, Zhong-Ren,Zhou, Zhu-Jun. 2015

[10]Looking Forward to Beijing Agricultural Informationization in the 13th five years plan. Wei, Qing-feng,Luo, Chang-shou,Wei, Qing-feng,Luo, Chang-shou,Tang, Yan. 2016

[11]Variation of correlations between factors and culturable airborne bacteria and fungi. Gao, Min,Qiu, Tianlei,Han, Meilin,Wang, Xuming,Yan, Xu,Gao, Min.

[12]Development of Biogas Industry in Beijing. Zhang, Huizhi,Li, Hong,Huang, Baorong. 2015

[13]High-throughput sequencing-based analysis of the composition and diversity of endophytic bacterial community in seeds of "Beijing" hybrid maize planted in China. Liu, Yang,Wang, Ronghuan,Chen, Chuanyong,Xu, Tianjun,Zhao, Jiuran,Liu, Yang,Cao, Yanhua,Bai, Feirong,Zhang, Xin,Cheng, Chi,Li, Yinhu,Qiu, Chuangzhao,Dai, Wenkui.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台