IV. Central North Island pumice-land, Wairakei
نویسندگان
چکیده
منابع مشابه
Monitoring cobalt status - experiences in the central North Island
The requirement for ‘cobalt (Co) of ruminants grazing pastures on the pumice soils of the Central Plateau was established in the late 1930s and Co topdressing to increase the Co intake of animals became commonplace from the mid-1950s. An on-farm survey in 1978-79 indicated that Co inputs could be halved because of adequate reserves of soil Co accumulated since the 1950s. However, the economic d...
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New Zealand has a similar history of logging, followed by the plough or fire, or similar disturbances. In addition, since all the ungulates have been introduced in a short time, biologically speaking, the native plants are generally ill-adapted to maintain themselves under heavy browsing pressure. An inevitable imbalance between animal numbers and the amount of available food has resulted. The ...
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[1] Using a high-speed video camera, we studied oblique collisions of lapilli-size pumice cylinders (with no rotation before impact) on flat pumice targets. Our results show that the rebound angle, the ratios of the components of velocities and the energy loss vary with the impact angle. In particular, in collisions with an average yaw angle approximately equal to zero, we observed relatively l...
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Relationships between composition of secondary vegetation and environment were studied in central North Island, New Zealand. A classification procedure was used to identify broad compositional groups which included forest, broadleaved scrub, shrub-fernland, sclerophyllous scrub and shrubland, and tussock-shrubland. Generalised additive models (GAMs) were used to examine relationships between sp...
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ژورنال
عنوان ژورنال: New Zealand Journal of Experimental Agriculture
سال: 1979
ISSN: 0301-5521
DOI: 10.1080/03015521.1979.10426154