Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Klaus-Peter Wittich"'
Autor:
Klaus-Peter Wittich
Publikováno v:
Meteorologische Zeitschrift, Vol 14, Iss 2, Pp 157-164 (2005)
Externí odkaz:
https://doaj.org/article/5b6efc50d8344d2792dd383930811203
Autor:
Klaus-Peter Wittich
Publikováno v:
Erwerbs-Obstbau. 63:25-36
As a response to strong radiative heating, the fruit temperature of apples may rise significantly above the air temperature. This may result in damage to the skin tissue and the epidermal and hypodermal cell layers. To avoid economic losses induced b
Publikováno v:
Journal of Agronomy and Crop Science. 203:117-130
The cup plant (Silphium perfoliatum L.) is discussed as an alternative energy crop for biogas production in Germany due to its ecological benefits over continuously grown maize. Moreover, a certain drought tolerance is assumed because of its intensiv
Autor:
Marco Liedtke, Klaus-Peter Wittich
Publikováno v:
International Journal of Climatology. 35:3991-4000
The study presented here examines the sensitivity of mid-spring, mid-summer and mid-autumn phenology to effective temperature in Germany for two divergent spatio-temporal scale arrangements: the regional long-term (50 years) scale and the nationwide
Publikováno v:
European Journal of Agronomy. 52:247-258
According to climate change projections, winter cereal production will likely be exposed to increasing air temperatures and prolonged summer droughts. During the 2009/10 and 2010/11 growing seasons at Braunschweig, Germany, four cultivars each of bar
Publikováno v:
Journal of Agronomy and Crop Science. 199:385-394
Canopy temperature has been recognised as an indicator of crop water status and may thus be a useful secondary trait in selecting for yield under dry conditions. The aim of this study was to test the suitability of canopy temperature depression (CTD
Autor:
Klaus-Peter Wittich
Publikováno v:
International Journal of Biometeorology. 55:313-318
The degree of grass curing, i.e. the proportion of dehydrated dead grass per unit grassland area, is one of the most important parameters affecting grassland fire risk and fire behaviour. The objective of the present study was to develop a simple rel
Publikováno v:
Chemosphere. 51:397-407
For the assessment of potential risks from total exposure to both spray drift and volatilised pesticides, field experiments in barley were carried out with insecticide application in May and June 2000. Pesticide concentrations in the air at the edge
Autor:
J. Siebers, Klaus-Peter Wittich
Publikováno v:
International Journal of Biometeorology. 46:126-135
Owing to legal provisions, pesticides have to be applied in such a way that there is no unacceptable influence on human health and the environment at nearby non-target areas. In order to quantify their concentration over and downwind of agricultural
Autor:
Klaus-Peter Wittich
Publikováno v:
International Journal of Biometeorology. 41:58-64
Simple equations are given which describe the relationships between the land-surface emissivity, the normalized difference vegetation index and the fractional vegetation cover. The empirical equations are validated using data taken from the literatur