搜索结果: 1-7 共查到“水文学 harvesting”相关记录7条 . 查询时间(0.062 秒)
Modelling the response of soil and runoff chemistry to forest harvesting in a low deposition area (Kangasvaara, eastern Finland)
soil runoff chemistry low deposition area maximum feasible reduction
2009/6/5
A simple dynamic soil model developed to analyse the effects of atmospheric deposition and nutrient cycling on terrestrial ecosystems, SMART 2, was applied to the Kangasvaara catchment in eastern Finl...
Assessing soil calcium depletion following growth and harvesting of Sitka spruce plantation forestry in the acid sensitive Welsh uplands
soil calcium depletion Welsh uplands plantation forestry
2009/6/5
A simple mass balance has been used to estimate soil calcium depletion during the growth of a 50 year old Sitka spruce crop on acid, base-poor peaty podzol soils in upland Wales. Growth of the crop wi...
The impacts of conifer harvesting on runoff water quality：a regional survey for Wales
runoff water quality Wales regional survey
2009/6/5
Major, minor and trace element chemistry of runoff at stormflow and baseflow from 67 catchments (2 to 5 ha in area) has been determined to investigate the effects of clear felling and replanting of co...
Analysis of the impacts of major anion variations on surface water acidity particularly with regard to conifer harvesting：case studies from Wales and Northern England
surface water acidity Wales Northern England
2009/6/5
Data on the water quality of streams draining a range of acidic and acid sensitive, mainly afforested, upland catchments in mid- and north-Wales and northern-England are described to investigate the a...
Effects of forest harvesting on summer stream temperatures in New Brunswick, Canada: an inter-catchment, multiple-year comparison
terrain attributes solar radiation
2009/3/24
This paper presents a pre- and post-harvest comparison of stream temperatures collected in five neighbouring streams (sub-catchments) over a period of five years (1994-1998). The aim of the study was ...
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...
The impact of conifer harvesting on stream water quality: the Afon Hafren, mid-Wales
deforestation water quality acidification pH nitrate alkalinity aluminium
2009/3/5
Results for long term water quality monitoring are described for the headwaters of the principal headwater stream of the River Severn, the Afon Hafren. The results are linked to within-catchment infor...