Answer:
I think it is supported by the map.
Explanation:
Let´s start with paddy field: a flooded parcel of arable land, used for growing crops like rice. So if East Asia is where the Japanese race can be cultivated we have to have a reservoir somewhere between Japan and East Asia.
Manchukuo (or the state of Manchuria) was created by the Japanese in 1932 as a puppet state, and it is situated in northeastern China.
Quote by George Mason
<span>"It is expected our doors will be shut, and communications upon the business of the Convention be forbidden during its sitting. This, I think, myself, a proper precaution to prevent mistakes and misrepresentation until the business shall have been completed, when the whole may have a very different complexion from that in which the several crude and indigested parts might, in their first shape, appear if submitted to the public eye."</span>
I'm sure it's the Tropical forest.
Hope this helps!