搜索结果: 1-8 共查到“环境科学技术 Stream”相关记录8条 . 查询时间(0.109 秒)
Stream pollution from mountaintop mining doesn’t stay put in the water（图）
Stream pollution mountaintop mining put in the water
2020/4/10
Since the 1980s, a sprawling mountaintop removal mining complex in southern West Virginia has been leaching pollutants -- such as selenium -- into nearby streams at levels deemed unsafe for aquatic li...
Estimating the Effective Number of Breeders of Brook Trout, Salvelinus fontinalis, Over Multiple Generations in Two Stream Systems
Breeders of Brook Trout Salvelinus fontinalis
2014/11/26
The use of genetic markers in monitoring populations has become increasingly important for conservation purposes, and can take many forms. While effective population size (Ne) is of great interest to ...
Impacts of Land Use, Fertilizer and Manure Application on the Stream Nutrient Loadings in the Salmon River Watershed, South-Central British Columbia, Canada
Model Landuse Nitrogen Phosphorus Fertilizer Manure
2013/3/11
Manure and fertilizer applications can increase soil productivity and land economic values, but the controversial result can be a decline of water quality due to the increased nutrient exports from so...
Differential Gene Expression in Zebrafish (Danio rerio) Following Exposure to Gaseous Diffusion Plant Effluent and Effluent Receiving Stream Water
Zebrafish gene expression metals ethoxyresorufin-o-deethylase
2010/12/22
Transcription of the biomarker enzyme cytochrome P4501A1 (CYP1A1) was significantly elevated in fish exposed to one plant effluent at both the 7 (16 fold) and 14 (10 fold) day time points. Sediment PC...
Research on Bottom Sediment and Water Quality of Samsun-Mert Stream at the Discharge into the Black Sea
Surface Sediment Mert Stream environmental Pollution Wastewater
2009/10/14
The aim of this study was to determine the sediment and the water quality of the Mert stream which has
a high amount of discharge to the Black Sea from Samsun and also the determination of the enviro...
Nitrate removal in stream ecosystems measured by 15N addition experiments: Denitrification
Nitrate removal stream ecosystems measured 15N addition experiments Denitrification
2014/4/18
We measured denitrification rates using a field 15NO3- tracer-addition approach in a large, cross-site study of nitrate uptake in reference, agricultural, and suburban-urban streams. We measured denit...
Nitrate removal in stream ecosystems measured by 15N addition experiments: Total uptake
Nitrate removal stream ecosystems measured 15N addition experiments Total uptake
2014/4/18
We measured uptake length of 15NO3- in 72 streams in eight regions across the United States and Puerto Rico to develop quantitative predictive models on controls of NO3- uptake length. As part of the ...
Treatment of Ammonia in Air Stream by Biotrickling Filter
Ammonia Nitrification Air pollution control Biotrickling filter
2016/3/30
A pilot-scale reactor, consisting of a set of two-stage-in-series biotrickling filters, an influent
gas supply system and a liquid recirculation system, was utilized to treat ammonia in an airstream....