Climate change effects on crop evapotranspiration in the Carpathian Region from 1961 to 2010

Meteorological applications

article

Mărgărit-Mircea Nistor¹  Alessandro F. Gualtieri¹  Sorin Cheval²  Ştefan Dezsi³  Vanessa Elena Boţan⁴ 

[1] Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia;National Meteorological Administration;Faculty of Geography, Babeş-Bolyai University;Department of Psychology, University of Sussex, United Kingdom

关键词: crop evapotranspiration;    climate change;    land cover;    seasonal;    Carpathian Region;   

DOI  :  10.1002/met.1570

学科分类：社会科学、人文和艺术（综合）

来源: Wiley

【 摘 要 】

In this study, the annual and seasonal crop evapotranspiration at the spatial level of the Carpathian Region were evaluated over 1961–2010. The temperature, precipitation and actual evapotranspiration grid monthly climate data and land cover were analysed and processed on a seasonal basis to compute the annual crop evapotranspiration. The land cover evapotranspiration rate was assigned through evapotranspiration coefficients from the literature. Geographical Information System (GIS) techniques, such as conversions from vector to raster data and the ‘Raster Calculator’ function, were used to assess the spatial distribution of the crop evapotranspiration at a regional scale. In particular, two datasets from different periods (1961–1990 and 1990–2010) were used to compute the seasonal and annual crop evapotranspiration for the Carpathian region. The results of climate parameters indicate a rise in temperature and crop evapotranspiration values between the first and the second period. In addition, significant spatial changes were observed with a shift of maximum values from south to north.

【 授权许可】

CC BY|CC BY-NC|CC BY-NC-ND