The Effectiveness of Some Herbaceous Species for Montane and Subalpine Revegetation
نویسنده
چکیده
The low level of plant nutrients in exposed high-altitude subsoils, aod the effects of soil frost and needle ice on plants attempting to colonise these subsoils combine to make natural revegetation very difficult. Artificial revegetation trials established in 1965 at three sites in the Canterbury mountains tested the effect of a fertiliser mixture \vhich suppJied a wide range of nutrients, and compared ten herbaceous species as providers of an initial protective covcr, and of a cover that would persist. Fertiliser proved essential to survival of sown species. and Yc.rkshire fog showed greatest ability to provide quick ground cover. In the absence of further fertiliser over five seasons browntop and Chcwings fescue provided the most persistent cover. Several species sown in the trials reseeded, and browntop, Yorkshire fog and white clc.ver showed most ability in re-establishing as volunteers. There were few volunteer native species.
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