Towards Sustainable Management of Chena/Unirrigated Highland Cultivation in Sri Lanka
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Towards Sustainable Management of Chena/Unirrigated Highland Cultivation in Sri Lanka Introduction lowlands and the dry zone hill Dr.M.U.A. Tennakoon country of Sri Lanka too, when the Former Executive Director, his paper attempts to analyse country's population density was Central Bank of Sri Lanka, chena cultivation in Sri low. It is still being practised in Sri Presently, Visiting Research TLanka from its historical Lanka as chena cultivation which Fellow, Hector Kobbekaduwa evolution as shifting cultivation to is a shifting form of agriculture Agrarian Research and the present-day stabilised highland where once a patch of forest is Training Institute, Colombo. farming, aiming at making chosen, slashed it using ordinary recommendations for more implements (axes, bill-hooks sustainable land management in knives, etc.), debris are burnt and chenas. It is divided into five parts. the bared thin soil veneer is and g) the ability to rotate crops Part I explains what the chena scratched and seeds are sown from season to season as required. cultivation is and traces its during two or three seasons the The origin of chana cultivation can evolution and distribution, before most. With the progressive weed be traced back to the tail-end of the dealing with the types of chenas, infestation and the decline in soil Iron Age (1000 -500 B.C.) in Sri methods of farming and the fertility, the land is abandoned in Lanka, where the man has learnt first to use crude iron implements combinations of crops grown to favour of yet another patch of forest which were further improved withstand rainfall vagaries seeking for a fresh clearing for cultivation. enough subsequently to slash or food security in Part II. Then, Part When the population pressure on hack bushes and plants of soft III will address the government land was low, it took 10 to 15 years wood types to clear tiny patches of chena policy, physical expansion of or more to reopen a rejuvenated land. With the continued chenas as a supplementation of forest in an abandoned old chena improvement of such iron tools, by wetland rice production down the site for the cultivation of a new 400 B.C. (Deraniyagala 1992), the ages, ensuring food security, chena. With the reduction of forest hunter-gatherers were able to cut notably during the late nineteenth extents available for clearing, some even the tough hard-wooded trees and twentieth centuries. The of the old chenas, without in the dry zone forest to clear subsequent transformation of the abandonment, have been extents of forest land, sufficient for shifting nature of chena cultivation transformed in to a type of semi a family for chena cultivation into a form of stabilised upland permanent or permanent upland • (Panabokke, 2009). highland farming (UHF) with least highland farms (UHFs). care for the forest, soil and environment leading to The ancient hunter-gatherers would The subsistence and have temporarily stayed closer to a undesirable consequences in land supplementary advantages of this water hole - a rudimentary pond - management will be discussed in method of cultivation include: a) its because, like food, water was a life- Part IV. Finally, as a solution to the ability to provide food early and giver to them. They may have hunted dilemma faced by the government, spread over a long time; b) its animals, gathered edible roots, that is, whether to allow or not to significance in raising food from fruits and nuts within the periphery allow UHF, specific highland cultivation; c) its low cost of a limited forest range and when recommendations for the evolution of production; d) simplicity and the supplies dwindled there, due to of a sustainable land management affordability of its technology in natural causes or exhausted due use; e) its ability to adjust to a are made in Part V. to over exploitation of food variable rainfall environment where resources, they may have shifted Part I at least some crops are able to to yet another once familiar forest thrive and able to provide food environment also with a source of Slash and burn method of highland depending on the moisture needs water to meet their domestic food farming which once remained of the different crops; f) low labour and water needs. As hunter- widespread throughout the humid inputs required notably when labour gatherers,' they may have realised Tropics in Latin America, Africa and inputs are concurrently required for Asia (Gourou, 1953) was widely that their food leftovers of nuts, wetland rice farming elsewhere; practised mostly in the dry zone seeds and roots casually thrown 10 Economic Review: April/ May 2010 — into the nearby garbage heaps have settlement in association with 'subsistence affluence' with a germinated, rooted, grew up with reliable water storages, and it may dominancy over chena cultivation, the passage of time and fruited not have taken a very long time to making it only a supplementary adding some amounts of food to evolve a wetland rice cultivation source of food. their food-basket. This would have system downstream of those water convinced them that wild food storages with the use of simple Part II plants can be domesticated adding gravity-guided irrigation during the In the words of B.H.Farmer (1957), food to their food-basket collected dry spells, in addition to the already though "it cannot be doubted that in the wild. familiar chena cultivation. chena cultivation dates from ancient times," our chronicles and This conviction would have lead that rice cultivation was The notion inscriptions do not throw a clear them to take to orderly growing of introduced to Sri Lanka only by the light on this mode of cultivation such wild roots, grain-seeds and Aryan settlers who arrived here, during the Anuradhapura and fruit plants or seeds in small has been put into serious Polonnaruwa periods. It was only patches of forest cleared, closer to challenge, emphasising that even during the Dambadeniya period of where they temporarily camped. irrigated rice cultivation prevailed our medieval history, that, some When food supply from the grown in Sri Lanka before the advent of reference to chena cultivation has plants and seeds became more the Aryans. Supporting this reliable than uncertain collection been made by the monk-author of argument, Panabokke (2009) says, of wild food, these hunter- Saddharmaratanavaliya, a literary "it should be emphasised that gatherers would have gradually work.Thereafter, no known wetland rice cultivation in Its shifted to a rudimentary form of authentic references had been early form was purely an farming for which clearing small made to chena cultivation until the indigenous development and patches of land was necessary. British administration firmly not one introduced by early With the passage of time, the role established here in the early Aryan settlers as is often stated of that rudimentary farming might nineteenth century. by some historians and have become the principal source scholars". It may also be possible of food, but some hunting and It was certainly under the British that different varieties of rice were gathering may have continued as administration that proper secondary sources of food grown in highland chenas and in documentation of chena cultivation procurement. wetlands. Even today, el vee is practices have come into regarded as a variety of rain-fed existence.The British writers such highland paddy. This faming would have as Tennent (1859) and Forbes necessitated periods of longer stays (1840) and administrators of the near the rudimentary ponds that It could be seen in the evolution North Central Province like they camped and that would also process described above, that even R.W.levers (1899) have made many have necessitated improvement of before the Christian Era an authentic records on chena those rudimentary ponds to ensure advanced human civilisation cultivation in their diaries which more assured supplies of water to thrived in this country based on they preserved very carefully, meet their domestic needs permanent settlements besides levers, published his authentic uninterruptedly. Thus, Panabokke tank storages, being dependant on study of Manual of the North (2009) contends that by the second wetland rice farming and chena Central Province in 1899, having century B.C. the early prototype of cultivation for food security. The thoroughly studied the province the small village tanks evolved from uniqueness of chena cultivation in with painstaking field work these rudimentary pond Sri Lanka is that, unlike in other undertaken almost over a decade, improvements, and he further countries in the humid Tropics, which refers to many aspects of states that, "at this stage of there is a harmonious blend of both chena cultivation in the north evolution, it should be very clearly chena and wetland rice farming central dry zone. The British recognised that chena cultivation evolved by the early inhabitants of Government Agents' diaries with kurakkan [Eleucine coracana,) a permanent village settlements. In maintained in the Anuradhapura crop of antiquity, had been the the early period of hunter-gatherers Kachcheri, Final Village Plans main cereal component* in their transforming themselves into a (FVPP) prepared and the numerous farming. The significance of the farming livelihood, chena petitions filed by the villagers evolution of small tanks from cultivation seems to have been the in respect of their seeking rudimentary ponds and chena dominant food supplier. With permission to clear forest patches cultivation is that there evolved a subsequent irrigation development, for chena cultivation,complaints on system of more permanent wetland rice farming achieved a losses caused to the cultivation by 11 Economic Review: April/ May 2010 rampaging wild animals, drought kepeem, that is, pruning or lopping environment all round, pausing effects on chenas, methods of off the young tree-head branches serious threats to human forest clearing for chena cultivation each of the size of a human arm at survival have been retold by Government the eye level.