Abstract:
Results of researches on assessment of a water regime of leaves and water-retaining ability of some woody
and shrubby plants in the conditions of the city of Zhezkazgan relating to three ecological groups in relation
to moistening conditions are given in article. Results have shown that the greatest water-retaining ability xerophytes
plants, the smallest to mesophytes possess. Following the results of researches all species have been
divided into 3 groups: with low (from 0 to 40 %), average (from 40 to 70 %) and high (over 70 %) waterretaining
ability. Syringa josikaea has entered into the first group; in the second — Populus alba, Malus
sieversii; in a third — Berberis vulgaris, Elaeagnus oxycarpa, Amygdalus nana, Betula pendula, Crataegus
sanguinea, Acacia alba, Pinus sylvestris, Juniperus sabina, Juniperus vulgaris. It should be noted that among
mesophytes one species — Syringa josikaea has entered into group with low indicators of the water mode,
then Amygdalus nana has entered into the second groups and Crataegus sanguinea — in the third the steadiest.
Among mesoxerophytes in the 2nd group of stability are Malus sieversii and Populus alba, the others
have entered into the third group. Among xerophytes all species have appeared in the third group of stability.
We recommend to enter plants from the third group into mass gardening of the Zhezkazgan region, the second
group — it is limited on condition of regular watering, the first group — only for private gardening on
plentiful watering.
