Results 71 to 80 of about 457 (112)

Documenting Spatial and Temporal Variations of Subsurface Contaminates Using Tree Cores: Implications for the Design of Effective Waste Management Strategies [PDF]

open access: yes, 2016
Proper waste management has become a worldwide humanitarian topic, because of increased awareness of potential risks posed by unsound waste disposal to human health and the environment (El-Fadel et al., 1997; Rowe et al., 1997).
Fonkwe, Merline L. D.
core  

Study on Soil Acidity Reconstruction by Using Dendrochemistry in the Subalpine Forest Ecosystems of Western Sichuan [PDF]

open access: yes, 2011
酸沉降是全球面临的重大环境问题之一,已经造成了许多地区的环境破坏和生态恶化。为此,人们对酸雨的性质及环境效应进行了广泛的研究,已经有了越来越深刻的认识。而作为引起森林树种衰退和死亡的主要原因,由酸沉降导致的土壤酸化问题更是备受关注。在大多数地区,历史监测资料的缺乏却给长期土壤酸化的评估带来了很多的困难,但是树木年轮元素含量的径向变动提供了检测林区土壤化学历史变动的潜力,从而可以用来克服这一困难。 基于以上几点,本研究为获取重建川西亚高山森林生态系统土壤酸化历史变迁的最佳指标,选取该地区峨眉山(严重酸沉降)
陈磊
core  

Temporal variability of tungsten and cobalt in Fallon, Nevada. [PDF]

open access: yesEnviron Health Perspect, 2007
Sheppard PR   +3 more
europepmc   +1 more source

Methods of Soil Resampling to Monitor Changes in the Chemical Concentrations of Forest Soils. [PDF]

open access: yesJ Vis Exp, 2016
Lawrence GB   +16 more
europepmc   +1 more source

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