Alley cropping tree lines alter temperature and light quantity and influence daily growth rates of grassland

Trees alter microclimate and radiation budget in alley cropping systems, which turn change physiological processes of the grassland component. The influence trees on growth depends climate zone as well possibly weather conditions during respective interval. proportion shade-tolerant species further modifies tree effect growth, number annual harvests. We studied distance orientation relative to line (tree South-West vs. North-East) rates adjacent with two cutting frequencies (frequent infrequent) an system different vegetation compositions (diverse grass-clover) willow clones. Microclimate parameters were measured at points where determined better characterize position line. Growth differed significantly (p < 0.05) depending biomass accumulation amounted 389 ± 13.5 g m−2 center 321 10.0 North-East 292 9.2 transect position. Lower occurred positions lower light quantities close trees, namely South-West. Temperature humidity differences between distances affected by line, but neither soil nor air temperatures rates. Vegetation composition mediates trees: difference was more pronounced diverse higher productivities alleys, also overall sward productivity.