The hectare has its exact equivalent in Argentina by the name manzana, in China by the name gong qing, in Iran by the name jerib, in the Netherlands by the name bunder and in Turkey by the name djerib. capita km2 Wet Dry Shallow (0-30 cm) Intermediate (30-100 cm) (ha) (km2). The International Committee for Weights and Measures has classified hectare as a 'non-SI unit accepted for use with the international system of units'.Īmong the geographies where this land measurement unit is most commonly used are Australia, Burma, Canada, the European Union, India, the US, the UK, etc. Although not a unit of SI, hectare is the only named unit of area that is accepted for use with SI units. 1 Square Meters to common area units 1 m2, sq m 1 square meters (m2, sq m) 1 m2, sq m 10000 square centimeters (cm2, sq cm) 1 m2, sq m 1.0E-6 square kilometers (km2, sq km) 1 m2, sq m 10.763915051182 square feet (ft2, sq ft) 1 m2, sq m 1550.0031000062 square inches (in2, sq in) 1 m2, sq m 1. Also note here that while acre is also widely used to measure land across the world, the hectare and the acre are different in the sense that the acre is a unit of area and hectare is a metric unit of area.Ĭounted among the most commonly used land measurement units by the farming communities across countries, both these units are used to measure large areas of land.Ī metric unit of area equal to a square with 100-metre sides, hectare is used in the measurement of land across the world. Even though the are is the primary metric unit of land measurement, the hectare has become more common. An are is equal to 100 square metres while a hectares is equal to 100 ares. It is about the size of a European football field.Ī metric unit of square measure, the term hectare is derived by adding the standard metric prefixes to the original base unit of area, the are. To give the understanding of the area a visual perspective, it would be better to equate a hectare with a football field.
Consequently, a farm with 200 ha of fields has 2 square kilometers of fields. In many of the medieval cities of Europe, the area that was protected. A 100 ha is equal to one square kilometre. This measure is equivalent to one million square meters, or even to one hundred hectares. Invented in the year 1795, the term hectare is a conjunction of the Latin words area and hect.Ī hectare is equal to 10,000 square meters and 2.471 acres in the British Imperial System. Finally, some observations are made about the most original species of the Azorean hepatic flora, which seems today not to be severely threatened, thanks to recent conservation measures on most of the islands, although they should be seriously reinforced.Hectare, a commonly used unit of the metric system that is used to measure land and plots all across the world, goes by the symbol ha. The tropical affinity of the Azorean hepatic flora is especially examined with a table including 41 species with neotropical, paleotropical or pantropical distribution or affinity, showing the dominance of the neotropical element among them (13.7% of the hepatics). The list of Azorean endemics is critically updated and reduced to 5 species, among which 3 are probably conspecific with Neotropical or African taxa. The species richness of the different islands is discussed briefly. Lists enumerate the 153 hepatics presently known with certitude on the Azores and 28 species erroneously recorded or not documented by original specimens.
After a short introduction to the main geographical, geological and climatic features of the Azores, an historical outline of the hepaticological research on these islands is given.
0 kommentar(er)
