EVALUATION OF REGIONAL DIVERSIFICATION IN SOWN AREA STRUCTUREIN THE CONTEXT OF IMPACT ON THE NATURAL ENVIRONMENT

Abstract

In recent years many important changes have taken place in Polish agriculture. The aim of the paperwas to determine the diversity of the structure of sown area in the voivodships and its potential impacton the natural environment. Crop diversity was assessed by using the Shannon-Wiener (H) index. Withthe Pielou (J) index was also analyzed crop uniformity of the area under each species in sown area. Theanalysis shows that the least varied sowing area structure is characterized by Opolskie, Dolnośląskieand Podlaskie voivodships. On the other hand, the highest values of the assessed indicators were notedin the Świętokrzyskie, Lubuskie, Warmińsko-Mazurskie and Lubelskie voivodships. The cluster analysisallowed for the separation of three homogenous groups of voivodships. In the cluster I was the Opolskie,Dolnośląskie and Opolskie voivodships, which are characterized by the least environmentally-friendlystructure of sown area. In cluster II was the largest number of voivodships characterized by indirectvalues of the assessed indicators. In the cluster III were Lubelskie, Świetokrzyskie, Warmińsko-Mazurskie,Wielkopolskie and Lubuskie voivodships, which had the highest values of evaluated parameters.

Keywords

• structure of sown area
• crop diversity
• crop uniformity
• natural environment