Zobrazeno 1 - 10
of 146
pro vyhledávání: '"M.R. Ashmore"'
Autor:
M. Mohammadian, M.R. Ashmore
Publikováno v:
Journal of Mazandaran University of Medical Sciences, Vol 16, Iss 54, Pp 67-74 (2006)
Background and purpose: High concentrations of respirable particles may cause high incidence of respiratory diseases and mortality. Epidemiological exposure assessment is based on fixed site measurements in ambient air. However, major studies reporte
Externí odkaz:
https://doaj.org/article/3daa72c90d3546a58eb7eda4268640ea
Publikováno v:
The Scientific World Journal, Vol 1, Pp 714-721 (2001)
Atmospheric nitrogen deposition has been shown to affect both the structure and the function of heathland ecosystems. Heathlands are semi-natural habitats and, as such, undergo regular management by mowing or burning. Different forms of management re
Externí odkaz:
https://doaj.org/article/288fbe61ffda4e78b72a10f0dd063640
Autor:
G.H Stribley, M.R Ashmore
Publikováno v:
Forest Ecology and Management. 157:191-204
Quantitative analysis of twig growth patterns (TA) from the upper canopy of 40 year old beech trees, in two compartments at Wytham Wood near Oxford, was carried out for the growth years 1987–1996. Annual growth of leader, or primary, shoots and lat
Publikováno v:
Indoor and Built Environment. 10:209-213
Publikováno v:
Environmental Science & Policy. 3:249-262
Understanding how environmental policy decisions were reached in the past might help predict policy development in the future. This paper evaluates how well two existing frameworks for decision analysis fit acid rain policy development of the UK Cent
Autor:
M.R. Ashmore, K.A Ling
Publikováno v:
Forest Ecology and Management. 119:77-88
The aim of this study was to investigate whether changes in crown condition associated with decline in the health of beech (Fagus sylvatica) stands are affecting the species composition of the woodland ground flora. Forty-three woods in the Chilterns
Publikováno v:
Chemical Speciation & Bioavailability. 10:61-75
The concept of critical loads, previously applied to acidifying substances, is currently being extended, within the Convention on Long Range Transboundary Air Pollution (CLRTAP), to several metals: Cd, Cu, Hg, Pb and Zn. Receptors in the soil, such a
Publikováno v:
Forstwissenschaftliches Centralblatt. 112:128-132
The relative growth, rates of two aphid species feeding on Sitka spruce (Picea sitchensis) and one species on Scots pine (Pinus sylvestris) were measured on two year old trees prefumigated with either ozone (O3 or nitrogen dioxide (NO2) and compared
Publikováno v:
Forest Ecology and Management. 51:187-193
Elevated concentrations of ozone tend to be associated with periods of water deficit in plants. Ozone is highly episodic in its occurrence in the UK but plant responses to intermittent exposure to ozone and water deficit are poorly understood. Fagus
Autor:
M.R. Ashmore, N. Ainsworth
Publikováno v:
Forest Ecology and Management. 51:129-136
Ethylenediurea (N-[2-(2-xo-1-imidazolidinyl)ethyl]-N′-phenylurea; EDU), is known to protect a wide range of plants against ozone-induced injury. Stem injection of EDU may eventually allow ozone effects on large trees to be assessed in the field. Th