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Reading: Land suitability for sustainable rubber cultivation in Moneragala district

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Land suitability for sustainable rubber cultivation in Moneragala district

Authors:

L Samarappuli,

Export Development Board, Colombo, LK
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W Wijesuriya ,

Rubber Research Institute of Sri Lanka, Dartonfield, Agalawatta, LK
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D M A P Dissanayake,

Rubber Research Institute of Sri Lanka, Telewala Road, Ratmalana, LK
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S B Karunaratne,

Wayamba University of Sri Lanka, Makandura, Gonawila, LK
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H M L K Herath

Wayamba University of Sri Lanka, Makandura, Gonawila, LK
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Abstract

With respect to rainfall, the current rubber growing areas are suitable for rubber planting. However, the DS divisions, Kataragama, Tanamalwila and Siyambalanduwa are relatively drier. Nearly, 97 % of the land extent in the district has a mean annual temperature between 230C to 270C, which is desirable for rubber. Majority of the land area (67%) belongs to the elevation category below 200 m above mean sea level. Most of the lands belong to the slope category of less than 20% which is desirable and only 1% of the lands belong to greater than 45% slope. There is no limitation with respect to rockiness in the selected sites of Moneragala district. Water tables less than 1 m were not observed in any of the locations. The soil depth is found in the desirable range (>1 m). The pH levels are well within the desirable range of 4 to 6. Yet, the observed organic matter content (OMC) was found in the limiting range. The study identified the available lands, viz. barren lands, grasslands, shrub lands and under- utilized lands through GIS approach and nearly 6% (34,752 ha) of the identified land can be categorized under most suitable lands for cultivation of rubber in the Moneragala district.

DOI: http://dx.doi.org/10.4038/jepsl.v3i1.7313

Journal of Environmental Professionals Sri Lanka, Vol. 3 No. 1 2014, 48-61

Keywords: Land suitability Rubber GIS 
How to Cite: Samarappuli, L. et al., (2014). Land suitability for sustainable rubber cultivation in Moneragala district. Journal of Environmental Professionals Sri Lanka. 3(1), pp.48–61. DOI: http://doi.org/10.4038/jepsl.v3i1.7313
Published on 21 Aug 2014.
Peer Reviewed

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