A natural hybrid betweenRaoulia bryoidesandR. grandiflora(Compositae‐Gnaphalieae) from Mt St Patrick, Canterbury, New Zealand
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چکیده
منابع مشابه
Groundwater Recharge Interface and Nitrate Discharge: Central Canterbury, New Zealand
Regional surveys of groundwater quality in Central Canterbury, from 1977 to the present, show widespread occurrence of nitrate contamination primarily from agricultural land use. Two reported analyses of these surveys, in 1984 and 2002, describe a general decrease of nitrate concentration with depth from the groundwater table to uncontaminated water at about 50-80 m. This high quality water is ...
متن کاملFossil isopod and decapod crustaceans from the Kowai Formation (Pliocene) near Makikihi, South Canterbury, New Zealand
Small concretions and specimens embedded in the matrix have yielded a new Pliocene crustacean fauna from the Kowai Formation near Makikihi, South Canterbury, New Zealand. The fauna is relatively robust, with five identifiable taxa. Three new species are named herein, including the isopod Cirolana makikihi and the decapods Upogebia kowai and Austrohelice manneringi. one new genus and species of ...
متن کاملTrend in Bare Ground from Tussock Grassland Surveys, Canterbury, New Zealand
Trend in the proportion of bare ground in some Canterbury tussock grasslands is analysed using records of vegetative cover from Fox Peak, South Opuha River (1963-1985); Porter River (1976-1984); Waimakariri Basin (1962-1978); and central Waimakariri River (1947-1981). The overall proportion of bare ground changed little in all four surveys. The lowest altitude site at Fox Peak and a low altitud...
متن کاملAmmonium removal from wastewaters using natural New Zealand zeolites
Ammoniacal nitrogen (ammonia and ammonium) in agricultural wastewaters can promote eutrophication of receiving waters and be potentially toxic to fish and other aquatic life. Zeolites, which are hydrated aluminum-silicate minerals, have an affinity for ammonium ions (NH4"") and are, therefore, potentially useful in removing this contaminant from wastewaters. The major objectives of this study w...
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ژورنال
عنوان ژورنال: New Zealand Journal of Botany
سال: 2003
ISSN: 0028-825X,1175-8643
DOI: 10.1080/0028825x.2003.9512882