[HOT] RICE - HOTOSM - identification of plantations

Sérgio A. J. Volkmer sergioajv at gmail.com
Sat Oct 25 06:26:52 UTC 2014


Hi Blake,
I've been comparing these rice fields:

Location of Gbedin Rice Station according to:
http://www.liberianobserver.com/commentaries/can-liberia-answer-agriculture-challenge

Photos of rice paddies and its features in Liberia:
-in the middle: http://www.skyscrapercity.com/showthread.php?t=1365769
-Rice paddie showing central canal: http://www.aims-liberia.org/saclepea.php

Location you asked before:
https://www.openstreetmap.org/edit#map=19/6.65587/-9.37013

Gbedin Rice Station according to a previous mapping made by you:
https://www.openstreetmap.org/edit#map=19/7.27753/-8.82474
There are both orthogonal and irregular fields of rice.

It's said that Gbedin is the site of Liberian major rice project.
Structures of canals are very permanent.

Comparing both fields: they are in the same river basin (that place you
asked is 100km down the river from Gbedin), same landscape, same structures.
I guess there can't be another culture with identical features in the same
context.

For me, what you had shown must be rice.

Regards,


     Sérgio Augusto Jardim Volkmer
           Arquiteto - CAU/RS A26532-2

Curriculum: lattes.cnpq.br/5493500986307113

2014-10-23 18:20 GMT-02:00 Blake Girardot <bgirardot at gmail.com>:

> Hi Sergio,
>
> You mentioned in a previous email about rice paddys.
>
> Andrew Buck, one of the Ebola coordinators, is pretty sure this is rice
> paddys in W. Africa. He is not 100% sure it is rice, but it is for sure a
> central water canal with fields on each side. They are built in a natural
> river or stream bed.
>
> https://www.openstreetmap.org/#map=18/6.654361/-9.371611
>
> If you think this is rice growing for sure, please let us know.
>
> Best wishes,
> Blake
>
>
>
> On 10/21/2014 3:48 PM, Sérgio A. J. Volkmer wrote:
>
>> Hi Charlotte,
>> I'm Sergio of the post HOTOSM #699: About identification of plantations,
>> I'm having problem to see the list of posts with my hotmail account, but
>> have contacted the manager.
>> This is my current gmail.
>>
>> Yes, that area in
>> http://www.openstreetmap.org/edit?editor=id&#map=19/8.83837/-12.04526
>> <http://www.openstreetmap.org/edit?editor=id&#map=19/8.83837/-12.04526>
>> actually is of manioc (cassava). Both green(new) and brown(picked)
>> rounded shapes of 1-1,5m, as I've wrote in the post.
>> I would map it together since it's one same field, only that plantations
>> are managed seasonally from side to side ni the same uncovered field.
>> Beside it there are planted palm orchard (it's in more regular rows, so
>> it's different from irregular palm woods).
>> I've tagged it by this way:
>> http://www.openstreetmap.org/edit?editor=id&#map=18/8.83778/-12.04529
>> <http://www.openstreetmap.org/edit?editor=id&#map=18/8.83778/-12.04529>
>>
>> Regards,
>> Sergio
>>
>>
>>
>>   On 10/21/2014 12:43 PM, Charlotte Wolter wrote:
>>>  > Hello all,
>>>  >
>>>  > I am mapping one of the ETC sections, and am seeing what looks like
>>>  > small dots or circles, especially clustered around the low-lying
>>>  > areas that seem to be used for farming. Does anyone know if these
>>>  > dots represent farming, perhaps something like manioc? We've been
>>>  > asked to Here's a link to one area:
>>>  >
>>>
>> http://www.openstreetmap.org/edit?editor=id&#map=19/8.83837/-12.04526
>> <http://www.openstreetmap.org/edit?editor=id&#map=19/8.83837/-12.04526>
>>
>>>  >
>>>  > Charlotte
>>>  >
>>>  >
>>>
>>
>>
>>
>>       Sérgio Augusto Jardim Volkmer
>>             Arquiteto - CAU/RS A26532-2
>>
>> Curriculum: lattes.cnpq.br/5493500986307113
>> <http://lattes.cnpq.br/5493500986307113>
>>
>
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