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<body class='hmmessage'><div dir='ltr'>Hi Blake,<div>sorry, while struggling to find the emails you mentioned I forgot to answer you </div><div>(<span style="font-size: 12pt;">I guess I was not receiving because I had selected digests).</span></div><div><br></div><div>As I answered before to Charlotte:</div><div><br></div><div><span style="background-color: rgb(255, 255, 255);">Y</span><span style="font-size: 12pt; background-color: rgb(255, 255, 255);">es, that area in </span><div style="background-color: rgb(255, 255, 255);"><a href="http://www.openstreetmap.org/edit?editor=id&#map=19/8.83837/-12.04526" target="_blank" style="color: rgb(17, 85, 204);">http://www.openstreetmap.org/<wbr>edit?editor=id&#map=19/8.<wbr>83837/-12.04526</a><br>actually is of manioc (cassava). Both green(new plants or grass coverture in the holes, it's not ) and brown(picked or dry remains) rounded shapes of 1-1,5m, as I've wrote in the post.</div><div style="background-color: rgb(255, 255, 255);">I would map it together since it's one same field, only that plantations are managed seasonally from side to side in the same uncovered field.</div><div style="background-color: rgb(255, 255, 255);">Beside it there are planted palm orchard (it's in more regular rows, so it's different from irregular palm woods).</div><div style="background-color: rgb(255, 255, 255);">I've tagged it by this way <span style="font-size: 12pt;">(there is still more to do in the area)</span><span style="font-size: 12pt;">:</span></div><div style="background-color: rgb(255, 255, 255);"><a href="http://www.openstreetmap.org/edit?editor=id&#map=18/8.83778/-12.04529" target="_blank" style="color: rgb(17, 85, 204);">http://www.openstreetmap.org/<wbr>edit?editor=id&#map=18/8.<wbr>83778/-12.04529</a></div><div style="background-color: rgb(255, 255, 255);"><span style="font-size: 12pt;">- - -</span></div><div style="background-color: rgb(255, 255, 255);"><span style="font-size: 12pt;">It's manioc/cassava land for sure:</span></div></div><div style="background-color: rgb(255, 255, 255);"><br></div><div style="background-color: rgb(255, 255, 255);">-The more green rounded shapes show some shadow (to the same side of palms, so they are not remain holes in the ground), it should be <span style="font-size: 12pt;">plants in growing or adults.</span></div><div style="background-color: rgb(255, 255, 255);"><span style="font-size: 12pt;">-</span><span style="font-size: 12pt;">The brown/dark rounded shapes should be only with soil or rotten remains of the plants (since only the roots are taken and the remains left in the same place; stem and leaves are toxic, </span><span style="font-size: 12pt;">some varieties very toxic</span><span style="font-size: 12pt;">).</span></div><div style="background-color: rgb(255, 255, 255);"><font size="3">They may use it one year planted in one side, the other year change to the other side to avoid soil be </font>exhausted<font size="3">.</font></div><div style="background-color: rgb(255, 255, 255);"><br></div><div style="background-color: rgb(255, 255, 255);"><span style="font-size: 12pt;">But take a look at this for example:</span></div><div style="background-color: rgb(255, 255, 255);"><a href="http://www.openstreetmap.org/edit?editor=id&#map=19/8.83944/-12.05939" target="_blank">http://www.openstreetmap.org/edit?editor=id&#map=19/8.83944/-12.05939</a></div><div style="background-color: rgb(255, 255, 255);"><br></div><div style="background-color: rgb(255, 255, 255);">You can see 3 green areas of manioc with three little different shapes <span style="font-size: 12pt;">(</span><span style="font-size: 12pt;">in Brazil, </span><span style="font-size: 12pt;">time between planting and picking manioc roots </span><span style="font-size: 12pt;">usually takes 1 to 1.5 year</span><span style="font-size: 12pt;">, but </span><span style="font-size: 12pt;">may take 6 months to 3 years):</span></div><div style="background-color: rgb(255, 255, 255);"><div><span style="font-size: 12pt;">1) above, one rounded with small shadows, max.1m indicating new individuals in growth;</span></div><div><span style="font-size: 12pt;">2) below, one rounded with a little bigger shadows, a little more spaced (</span><span style="font-size: 12pt;">some individuals may have been already taken)</span><span style="font-size: 12pt;">, around 1.5m indicating grown individuals;</span></div><div>3) in the middle, the other rounded, very shallow, with almost no shadow, probably recent remains or new grass, indicating probably seasonal renewal of soil.</div><div>The growing plants are distant from the adults to make it easier to manage both.</div><div><span style="font-size: 12pt;"><br></span></div><div><span style="font-size: 12pt;">And palms there are 3 to 4 times larger, top with 5 to 8m diameter, long shadows.</span></div><div><br></div><div><span style="font-size: 12pt;">Nigth time here. </span><span style="font-size: 12pt;">Not extending discussion for too long, but for me it's also one more example of m</span><span style="font-size: 12pt;">anioc/cassava land.</span></div><div><span style="font-size: 12pt;">Better if someone else could confirm.</span></div><div>It's the 2nd major production and 1st in tons, it's everywhere:</div><div><a href="https://en.wikipedia.org/wiki/Agriculture_in_Sierra_Leone" target="_blank">https://en.wikipedia.org/wiki/Agriculture_in_Sierra_Leone</a></div><div><br></div></div><div style="background-color: rgb(255, 255, 255);">Rice is the 1st, but I don't know how to find it (perhaps only by color), so it may be in wetlands but not visible.</div><div style="background-color: rgb(255, 255, 255);"><br></div><div style="background-color: rgb(255, 255, 255);">Here in Brazil both are widespread too.</div><div style="background-color: rgb(255, 255, 255);"><br></div><div style="background-color: rgb(255, 255, 255);"><div><div><span style="font-size: 12pt;">Regards,</span></div><div>Sergio</div></div><div><br></div></div><div><br></div><div><br><div><br><div>> Date: Tue, 21 Oct 2014 14:05:23 -0400<br>> From: bgirardot@gmail.com<br>> To: svolk2@hotmail.com<br>> CC: hebolz@web.de<br>> Subject: Re: [HOT] HOTOSM #699: About identification of plantations (HOTOSM #699: About identification of plantations in Africa (as for cassava, manioc)<br>> <br>> Hi Sergio,<br>> <br>> We do not get copies of emails we send to the list, that is a "feature" <br>> that I do not like either :(<br>> <br>> Your follow up email to the list did get through to the list and the <br>> example was great.<br>> <br>> Did you happen to see email to the list with the subject: "[HOT] <br>> cultivated areas in ETC sections?"<br>> <br>> That looks a lot like cassava, what do you think?<br>> <br>> Cheers,<br>> Blake<br>> <br>> <br>> <br>> On 10/21/2014 1:58 PM, S Volk wrote:<br>> > Hi Blake and Henning, thanks.<br>> > I dont know if I send it well to hot@openstreetmap.org, because I can't<br>> > find the post there.<br>> > So I send this post below to you if it this would be useful.<br>> > Regards from Brazil,<br>> > Sergio.<br>> ><br>> > - - -<br>> > Some more about Africa plantations:<br>> ><br>> > Sometimes images shows cassava plantations like rounded light green<br>> > patterns, planted in not very regular rows (new plants).<br>> > Sometimes shows only brown rounded holes, but in the exact place where<br>> > there were plants that were already picked.<br>> > It only changes from sides to sides of same uncovered lands seasonally.<br>> > Anyway mostly it will be planted again soon, so its allotments usually<br>> > are permanent.<br>> > So it keeps being the same farmland landcover.<br>> ><br>> > Since it's planted in small strips or areas (once it's a kind of manual<br>> > plantation by few individuals, usually not large areas managed by<br>> > machines), they are sometimes isolated, sometimes following river<br>> > margins or wetland.<br>> ><br>> > Intending not to complicate too much, I think it will be more useful to<br>> > map it continuously when brown and green areas are together, since being<br>> > the same seasonal plantation area (not in many disconnected strips, I<br>> > did it before, but I think it's unnecessary perfectionism). Only when<br>> > it's not disconnected by remarkable different features as portions of<br>> > forest or rivers or non-used grassland, it may be mapped continuously).<br>> ><br>> > Paths can be found going though it by many ways. Plantation borders<br>> > usually almost sure are ways for paths, if found straight paterns.<br>> ><br>> > Also, I think it's better to tag cassava plantation as farmland (not<br>> > orchard, since orchard is more propper for permanent plants, that are<br>> > not removed in the harvest, like apple trees, pepper, etc).<br>> > Cassava plant is entirely removed, since it is a tuberous root.<br>> > In this area can be seen both green and brown areas of cassava planted<br>> > and removed:<br>> ><br>> > http://www.openstreetmap.org/edit?editor=id&#map=18/8.78502/-12.00690<br>> > <http://www.openstreetmap.org/edit?editor=id&%20#map=18/8.78502/-12.00690><br>> ><br>> > In that area can be seen also a plantation of palms, recognized by its<br>> > long leaves and some regular pattern, not being random. Most times I see<br>> > it tagged as forest. Few times as orchard. So I followed tagging as<br>> > forest (Wood only for natural groups). But now I guess, if to be more<br>> > precise, it would be more proper for "orchard" when palms are found<br>> > planted in regular patterns, since it's for picking its fruits (not<br>> > mostly for cut it to use its wood, as landuse tag for forest). But guess<br>> > it's not worth for changing all done around Africa. It makes no much<br>> > remarkable difference for practice, and there are still much more<br>> > unidentified features to be done.<br>> ><br>> > Also about Sierra Leone plantations:<br>> > https://en.wikipedia.org/wiki/Agriculture_in_Sierra_Leone<br>> ><br>> > Regards, Sergio. Brazil.<br></div></div></div> </div></body>
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