Abstract
In 1963, 1964 and 1965, a comparative ecological study was made of the distribution of mineral elements in the soil and phytomass of some Stipa species, viz.Stipa capillata L., S. pulcherrima C. Koch,S. joannis Celak.,S. dasyphylla Cerň.,and S. stenophylla Cerň. in various locations of Central Europe. In all species and sites studied, chemical analyses of the soil, fresh phytomass (shoots and roots) and dead phytomass were made, together with relevant statistical evaluation. IndividualStipa species differ according to their mineral composition. In comparison with fresh green plant material, the old dead plant material shows a marked increase in ash, calcium, and natrium content. Potassium, nitrogen, and phosphorus show a decrease in the dead plant material. The mineral composition of the roots differs considerably from that of green plant parts: the roots have much higher ash, phosphorus, calcium and natrium content, and lower organic matter, nitrogen, and potassium content. On the basis of the data collected, an attempt was made to estimate cycling of the individual mineral elements.
Published Version
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