搜索结果: 1-11 共查到“理学 acid deposition”相关记录11条 . 查询时间(0.265 秒)
Modelling the Effects of Acid Deposition:Estimation of Long-Term Water Quality Responses in Forested Catchments in Finland
Acid Deposition Long-Term Water Quality Responses Forested Catchments
2009/10/27
A modelling study has been undertaken to investigate long-term changes in
surface water quality in two contrasting forested catchments; Yli-Knuutila, with
high concentrations of base cations and sul...
Comparison of simulated forest soil response to acid deposition reduction with two models of differing complexity
forest soil \acid deposition reduction
2009/6/5
Great effort has been dedicated to developing soil acidification models for use on different scales. This paper focuses on the changes in model performance of a site scale soil acidification model (NU...
Acid deposition, land-use change and global change：MAGIC 7 model applied to Aber, UK (NITREX project) and Risdalsheia, Norway (RAIN and CLIMEX projects)
Acid deposition MAGIC (version 7) global change
2009/6/5
Nitrogen processes are now included in a new version of MAGIC (version 7), a process-oriented catchment-scale model for simulating runoff chemistry. Net retention of nitrogen (N) is assumed to be cont...
Effects of decreasing acid deposition and climate change on acid extremes in an upland stream
climate change upland stream acid deposition
2009/4/29
This study assesses the major chemical processes leading to acid extremes in a small, moorland stream in mid-Wales, UK, which has been monitored since 1979. Results suggest that base cation (mainly ca...
Modelling the effects of acid deposition: refinements, adjustments and inclusion of nitrogen dynamics in the MAGIC model
process-based model acid deposition
2009/3/24
The MAGIC model of the responses of catchments to acidic deposition has been applied and tested extensively over a 15 year period at many sites and in many regions around the world. Overall, the model...
Modelling effects of acid deposition and climate change on soil and run-off chemistry at Risdalsheia, Norway
elevated carbon dioxide temperature
2009/3/24
Elevated carbon dioxide levels, caused by anthropogenic emissions of carbon dioxide to the atmosphere, and higher temperature may lead to increased plant growth and uptake of nitrogen, but increased t...
The impact of acid deposition and forest harvesting on lakes and their forested catchments in south central Ontario: a critical loads approach
acid deposition calcium critical loads forests harvesting
2009/3/17
The impact of acid deposition and tree harvesting on three lakes and their representative sub-catchments in the Muskoka-Haliburton region of south-central Ontario was assessed using a critical loads a...
Long-term development of acid deposition (1880–2030) in sensitive freshwater regions in Europe
acid deposition historic depositions sensitive lake regions
2009/3/12
Time series of the deposition of acidifying substances are a pre-requisite for the study of the acidification and recovery of ecosystems such as surface waters. This paper reports the derivation and c...
Studies of acid deposition and its effects in two small catchments in Hunan, China
N. Xue H. M. Seip B. Liao R. D. Vogt
2009/3/12
Acid deposition and its effects were studied by analysing the chemistry in precipitation, stream water, soil water and soils in two catchments in Hunan. One site, Linkesuo (denoted LKS), is on the out...
Long-term patterns in dissolved organic carbon in boreal lakes: the role of incident radiation, precipitation, air temperature, southern oscillation and acid deposition
dissolved-organic-carbon lakes climate solar-radiation
2009/3/12
Both lake-specific (e.g. pH) and regional (e.g. precipitation) factors affect DOC concentration and pattern. Using annual DOC concentration in nine boreal lakes in the ice-free season, the potential i...
Effects of Dietary Algal Docosahexaenoic Acid Oil Supplementation on Fatty Acid Deposition and Gene Expression in Laying Tsaiya Ducks*
Laying Tsaiya Ducks Dietary Docosahexaenoic Acid SREBP1 SREBP2 Fatty Acid Composition
2016/4/21
The current study was designed to determine the effects of dietary docosahexaenoic acid (DHA) on fatty acid deposition in egg yolk and various tissues of laying Tsaiya ducks, and on the mRNA concentra...