Titlebook: Neusiedlersee: The Limnology of a Shallow Lake in Central Europe; H. L?ffler Book 1979 Dr. W. Junk bv Publishers, The Hague 1979 benthic.c

過(guò)渡時(shí)期

EvaporationOne of the main goals of the International Hydrological Decade programme was the determination of the water and heat balance of the lake with .particular emphasis on the exact estimation of evaporation. For this purpose a number of meteorological stations were set up in the lake region (Fig. 6.1)..

壁畫(huà)

REIGN

Optical properties, colour and turbidityInsolation of the lake area varies little in consecutive years (Table 15.1) and is usually higher than in other parts of Austria (Chapter 5). The maximum .deviation from the average of this region was five per cent during the period 1967 to 1973.

FICE

滔滔不絕地說(shuō)

思想流動(dòng)

Origin and geohistorical evolution). It is of some interest that between the crystalline and the Pannonian cover, sediments of the earlier stages of the Paratethys (brackish Sarmatian and marine Badenian) are lacking, although they are present further west and east of the lake area. Their absence is thought to be due to the shallowness of the earlier stages within this area.

Insubordinate

Water balancethe other lakes of Austria. A natural input of water via small gulleys is either lacking or only poorly developed. The terrain is so flat that a difference in elevation of only 10 cm can be of greater consquence here than a difference of 100 m in a mountainous district.

一起平行

松軟無(wú)力

The catchment area, a geographical reviewxploitation of the region by man, and unfavourable soil conditions, the hot, dry summer, have led to the almost complete disappearance of forests except for small scattered woods. The following pages will give a short survey of the landscape itself, its economic exploitation and its inhabitants (Fig. 1.1).

HALO

0077-0639 rmous fluctuations in water level and the consequent threat to the livelihood of the local popula- tion, who lived chiefly from stock-farming. Practically no tourism touched the area until 1920, about a century later than Schubert‘s visit to the Salzkam- mergut lake district, the traditional resort