Talk:Hectare

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I agree with and have added to seglea's comment on the usage of 'hectares'.

I have observed in several Wikipedia entries that Bobblewik has changed measurements in hectares to square metres, and in some instances to square kilometres, despite the general practice of describing such land areas in hectares. (Notably, equivalent measurements in acres have not been changed to square feet.) This is objectionable. It seems best to use metric measures in Wikipedia in the way that people who use the metric system use them; the point is to communicate clearly, after all.

In my experience (Australia) hectares are used for land measurement except for small (e.g. urban residential) properties when square metres are used as they are for describing floor areas of buildings. Square kilometres are used only to describe vast outback properties. However, many people are still more familiar with acres and most historical documents describe land areas using acres.

It would be more useful to work at ensuring that all land areas in entries are described in both hectares and acres, rather than conducting purges of the rather useful hectare.

R Jones 22 April 06

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Given that some people use acres, and some hectares, it might be an idea to state the relative areas of each in relation to each other. JTD 07:48 Jan 11, 2003 (UTC)

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The word "hectare" is a contraction of "hectametre squared".

Rather, I think, it is a contraction of hecto ("hundred") and are, just as hectolitre from hecto and litre.
Sebastjan

Will double check, but I think I was right with the first juncture....

-Chimpa

it's "hect + are" -- Tarquin 09:21 14 Jun 2003 (UTC)

it would also be helpful to have a conversion to square feet (107,639 sf/hectare) -- n8dunn@lycos.com

I have reinstated the information about the way in which hectares are used world wide. I know that user:Bobblewik objects to Wikipedia using them (though s/he seems to be in a minority of one on this), but I consider the information that everyone else does use them to be valid encyclopaedic material, and I request that this should not be deleted again without a consensus on this page. seglea 06:27, 28 August 2005 (UTC)

Contents 1 Definition 2 how many squared kilometers? 3 Purpose of Hectare (Explanation Section) 4 Canadian usage 5 BIPM SI 8th ed

[edit] Definition

The definition given is 10 000 m². That the hectare is 100 ares is mentioned in the conversions section. As the word "hectare" derives from "hecto-" plus "are", shouldn't this be the other way around? Isn't the hectare defined as 100 ares? Jimp 12Oct05

[edit] how many squared kilometers?

The article states that a hectare = 0.1 k^2. However, a hectare = (100 . 100)m^2 = 10^4 m2, while a squared kilometer = 1000^2 m2 = 10^6 m2. So I think a hectare is one hundreth of a squared kilometer. I'm going to change it into the article. S Sepp 17:41, 14 August 2006 (UTC)

Well spotted - it was recently wrongly changed to 0.1 by an anon (diff). Thanks for correcting it. -- ALoan (Talk) 17:58, 14 August 2006 (UTC)

Not necessarily vandalism though, might have been an honest confusion between 0.1 square kilometres and 0.1 kilometres square which mean different things. Femto 19:08, 14 August 2006 (UTC)

Perhaps. It is the area of a square of side 0.1 km, but "One hectare is equivalent to ... 0.01 square kilometres" is pretty clear, IMHO. -- ALoan (Talk) 19:18, 14 August 2006 (UTC)

[edit] Purpose of Hectare (Explanation Section)

The article suggests that the hectare is used in place of the square meter where it 'would be cumbersome and unnecessarily precise' to do so (added here). But surely units could be given as 270,000 sq m. rather than 27ha which is equally precise and not particularly cumbersome. My view, on the basis of no hard facts at all is that the hectare is a historical hangover used predominantly in countries which transitioned from the imperial acre to the quasi-metric hectare. But I could of course be totally wrong? orizon 03:09, 21 June 2007 (UTC)

It's fully metric, just not SI. Jɪmp 05:58, 5 September 2007 (UTC)

[edit] Canadian usage

Google search shows (1) that both "hectare" and "acre" are widely used in Canada, (2) "hectare" is slightly more common, (3) "hectare" is almost universally preferred in official (government) publications and widely preferred in journalism and education, (4) "acre" is widely used in commercial contexts, notably real estate. Avt tor 23:33, 30 July 2007 (UTC)

[edit] BIPM SI 8th ed

BIPM have moved on. The 8th edition of SI has brought the hectare in from the cold and includes it in a group of units that are accepted for use with SI. (Table 6). The article text as it stands reflects some of the 7th edition, has been edited several times and reads awkwardly. I intend to update the article to reflect the current standing of hectare in SI by BIPM. Bleakcomb (talk) 03:42, 2 April 2008 (UTC)