THE CONTINKNTAL FI.ORA OF SOUTH SWEDEN 261 



Tabic -r. The yearly average precipitation for certain parts of Middle Europe 

 and Southern Russia as well as for places in South Sweden (after Hann 



and Hamberg). 



(jothenburg 79 cm. 



Halmstad 72 



Lund 60 



I'lriceluiinn 7S * 



Viisteras 4S > 



Upsala 54 >> 



Skara 55 » 



1-inkoping 52 



Vaxio 58 



,Nyk6ping 56 



Vastervik 52 > 



Kalmar 39 



Visby 49 



Karlshamn 51 



evaporates directly from the surface or is collected and is carried away by the 

 watercourses. The evaporation depends inter alia on the temperature, cloudiness, 

 humidity, and motion of the air as well as on the properties of the soil, and 

 consequently, varies a good deal. Nevertheless this is probably not the case to 

 such an extent that the meteorological data become useless as relative measures. 



In connection with precipitation it is appropriate to mention Cloudiness. This 

 is of importance to the plants owing to its effect on evaporation and the supply of 

 light. Hamberg (1909) has published data on >-> Cloudiness and S7tnshine on the 

 Scandinavian Peninsula^ . 



Naturally enough these data present certain coincidences with the distribution 

 of precipitation. The western slope of the South Swedish highland thus shows 

 the highest values of cloudiness in South Sweden. They decrease rapidly towards 

 the Baltic. For Oland and Gotland, therefore, the values are very low. 



A comparison between the cloudiness in other parts of Europe gives Table 6 

 (according to Hann 1. c. and Schoenrock 1895). 



A summary of the above statements about the climate of South Sweden 

 assumes the following shape: 



I. Between the upland regions and the plains and coast regions surrounding 

 them considerable differences prevail with regard to temperature as well as to 

 precipitations and cloudiness. The contrast is specially striking between the 

 western parts of the South Swedish highland and the south-eastern coast regions. 



