Rough notes on slash and burn in Srilanka

It is notes on a slash-and-burn of Sri Lanka ...... As I mentioned at the very end, I think that the slash-and-burn field of Sri Lanka is parallel to and linked with paddy field cultivation and agroforestry, and has a great suggestion for what we are going to do in Okuzumo,Japan It was. Yes. Either way I would like to summarize a little more, but before memories get diminished, I will memorize it in a while.
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It is said that Sri Lanka is in a sharp population increase phase, and the slash-and-burn agricultural practice called Chena in Sri Lanka has become unsustainable due to shortening of fallow season. There are places where soil erosion has occurred in some places where conversion to farmers' field instead of the trees starts, and there are places where soil erosion is occurring, some of which are attributed to slash-and-burn farming. Sinhala? Although the slash-and-burn field called Chena in Chena also heard that there is a place remaining in the eastern region where the influence of the civil war was great, in most areas it has been banned from the 1970s to the 1980s.
Interestingly, Chena planted grains in the middle by mixing, vegetables on the periphery, how to build a fence with burned branches and vines to circumvent wildlife on the outside.
And that Chena's main cereal was Finger millet (local name is Kurakkan). Although the use of Shikoku beer has declined sharply, it is still in the market · cafeteria (I was interested in trying to eat, I am interested in what form is being served, it seems that I used to make it dango in old days). What is important as a health food.
◆ Not only forests, there are different Chena depending on the vegetation, such as rainforests, meadows, etc. Each name is different. It seems that there are some which are mainly classified into 4, some of which create a reservoir.
◆ Chena is merely one of many land use, basically thousands of years of irrigation paddy field cultivation, (currently) home garden called agroforestry ranging from 5 ridges to 2 towns, and Chena. It has sustainability even in the plantation era under British rule, but it has come to have big and complicated problems in the course of postwar agricultural modernization .
◆ In conjunction with home gardens, we are trying to hedge biodiversity and risk by taking the mosaic of vegetation. Besides animals, birds and insects (including bees), bats, and other birds' useful consciousness are quite high. Is the name such as "a tree that eats a bird"?

◆ It should also be noted that Chena's role is not limited to food supply, as it coexists with paddy field cultivation and home garden.
For example, it is conscious as a buffer zone of animal damage.
This point of view is hard to be noticed, but it is extremely important as our aim.