搜索结果: 1-8 共查到“headwater streams”相关记录8条 . 查询时间(0.083 秒)
An Assessment of Environmental DNA as a Tool to Detect Fish Species in Headwater Streams
eDNA qPCR lotic stream
2014/11/26
Recent years have seen an explosion of interest in the use of freely available DNA present in aquatic systems, otherwise known as environmental DNA (eDNA), as a tool for monitoring aquatic organisms. ...
Carbon cycling within epilithic biofilm communities across a nutrient gradient of headwater streams
Carbon cycling within epilithic biofilm communities across a nutrient gradient headwater streams
2014/4/17
Primary production (PP), nutrient uptake, and carbon (C) cycling within epilithic biofilm communities were assessed in four headwater streams in the Arkansas Ozarks, U.S.A., representing a hundred-fol...
Effects of seasonality and resource limitation on organic matter turnover by Chironomidae (Diptera) in southern Appalachian headwater streams
seasonality resource limitation Chironomidae in southern Appalachian headwater streams
2014/4/17
Despite their high abundance, secondary production, and known reliance on detrital material, the role of chironomids (Diptera) in fine particulate organic matter (FPOM) dynamics has not been well quan...
Characteristics of Nitrate Concentration of Headwater Streams Located in the Northwest of Tokyo Metropolitan Area
air pollutant NO3-N concentration stream water the nitrogen saturation
2009/8/28
Nitrate nitrogen (NO3-N) concentrations of stream water have been observed in the headwater catchments within Gunma Prefecture located in northwest of Metropolitan area Japan. Large differences of NO3...
Dynamics of river sediments in forested headwater streams：Plynlimon
river sediments Plynlimon British upland catchments forest cycle
2009/6/8
Long term studies of fluvial sediment processes in the Plynlimon catchments have contributed to the assessment and quantification of plantation forestry impacts in British upland catchments, at all s...
An assessment of nitrogen removal from headwater streams in an agricultural watershed, northeast Ohio, U.S.A.
An assessment of nitrogen removal headwater streams agricultural watershed northeast Ohio U.S.A.
2014/4/21
The objective of this project was to assess in-stream nitrogen removal capacity in a fragmented agricultural landscape and to compare removal capacities in streams with agricultural or residential (he...
An assessment of nitrogen removal from headwater streams in an agricultural watershed, northeast Ohio, U.S.A.
nitrogen removal headwater streams an agricultural watershed northeast Ohio U.S.A.
2014/4/18
The objective of this project was to assess in-stream nitrogen removal capacity in a fragmented agricultural landscape and to compare removal capacities in streams with agricultural or residential (he...
Controls on spatial and temporal variation of nutrient uptake in three Michigan headwater streams
Controls on spatial nutrient uptake
2014/4/22
We measured whole-stream uptake of ammonium (NHz
4
), nitrate (NO{
3
), and phosphate (as soluble reactive
phosphorus [SRP]) in two reaches of three forested headwater streams eight times from Ma...