Potential Land Suitability for Development of Leucaena leucocephala

To get the actual area for the development of L.leucocephala, an obtained existing map of the potential land suitability has overlaid with land cover maps and land use maps in which a predetermined constraint factors that can not be violated. Here are the results of overlay of maps of potential land suitability with constraint factors. Table 12 Area of Potential Land Suitability and Constraint Class Area Km 2 Constraint 2,642.03 N 3.85 S1 371.61 S2 1907.85 S3 207.55 Determination of the location of development of L.leucocephala to be more specific with overlaid with the driving force factors, which is a distance of the location from the road network and the distance of the potential development location to the nearest livestock market. Figure 19 above show the potential land suitability that has been overlaid with the distance buffering range to road network and livestock market location. Constraint 51.5 N 0.08 S1 7.2 S2 37.2 S3 4 Figure 19 Pie Chart of Percentage of Actual Potential Land Suitability with Constraint in Kupang District The area of actual land suitability can only be obtained after the whole process of the overlay above. In more detail following the table that can show the data area of actual land suitability classes based on the driving factor that is a road network. Table 13 Actual land suitability class with constraint in each road range buffer Classes Range 1 st km 2 Range 2 nd km 2 Range 3 th km 2 S1 122.50 7.24 187.11 7.63 56.78 4.35 S2 573.21 37.17 945.48 38.54 371.83 28.50 S3 77.48 4.04 105.80 4.31 22.50 1.72 N - - 3.85 0.30 Constraint 536.11 51.47 1,214.63 49.51 849.88 65.13 1,309.31 2,453.01 1,304.84 The existence of the animal market as the driving factor may also be one of the deciding criteria in decision-making to the development process of cultivation of L. leucocephala. Coordinates of each point made animal market is a ring buffer which Figure 20 Road Buffer Range is assumed coverage of the service area of the animal market. The range used of each within 5 km, 10 km, 15 km and 20 km. Based on the overlaid results of actual land suitability map with livestock market buffer area, obtained an area are included in each class of land suitability; data may be seen in the table below. Table 14 Actual land suitability class with constraint in each livestock market range buffer Classes Range 1 st km 2 Range 2 nd km 2 Range 3 th km 2 Ring 4 th km 2 S1 45.75 11.96 45.98 5.62 37.09 5.52 57.16 13.28 S2 175.93 46.01 272.45 34.13 208.94 31.08 146.27 33.98 S3 22.43 5.87 44.60 5.45 22.57 3.36 38.27 8.88 N - - - - Constraint 138.26 36.16 448.78 54.81 403.57 60.04 188.73 43.85 382.37 818.81 672.18 430.42 Figure 21 Livestock Market Buffer

4.3 Increasing Capacity Population of Ruminant Cattle ICPRC

The important aspect of livestock development planning is based on the potential of farm zoning and adequate land carrying capacity for livestock enterprises. Resource potential of livestock and livestock in the form of the potential diversity of livestock species, the potential of human resources farmers and the potential of livestock area carrying capacity of land and land suitability should be the initial reference for planning future development. By considering some of the elements associated with the zoning plan, then the desired goals can be achieved by the Kupang District to devise strategies in accordance with regional characteristics. Rollinson and Nell 1974 method is a comparative method which limits themselves only to the sources listed forage area or size in the statistical report. The potential supply of forage from the source is converted to the potential of natural grasslands after a few empirical studies. In addition to forage grasses, forage taken into account the potential for agricultural output with the rest of the rational utilization coefficient. ICPRC processed data is the data statistic census results of 2009 combined with land cover maps of each district. ICPRC value show the number of ruminants that can be added to each location, the negative sign indicates number of livestock that at this sub-district has exceeded the carrying capacity so that policies need to be taken to make improvements to the producer of forage. The following are the results of calculations ICPRC for each sub-district in Kupang District. Land capability value in Kupang District for the provision of feed grass straw for livestock naturally without any effort to plant fodder in particular can be seen in Table RCC and ICPRC. With the planting efforts in particular animal forage, such as L leucocephala is expected to increase ICPRC values more than the 481,714 AU. Table 15 RCC and ICPRC No Sub-District Potential grass production 3,75 x sum of grass land area 1 Ruminant Carrying Capacity AU 12,55 ton 2 Real Population in 2009 AU 3 ICPRC AU 2 -3 1 Semau + South Semau 56,786 22,226 8,330 13,896 2 West Kupang + Nekamese 90,119 35,272 9,746 25,526 3 Central Kupang + Taebenu 59,494 23,285 6,405 16,880 4 Amarasi + South Amarasi + West Amarasi + East Amarasi 208,596 81,642 19,923 61,719 5 East Kupang + East Amabi Oefeto + Amabi Oefeto 156,421 61,222 36,060 25,162 6 Sulamu 64,762 25,347 8,146 17,201 7 Fatuleu + West Fatuleu + Central Fatuleu 312,348 122,250 17,829 104,421 8 Takari 140,732 55,081 16,212 38,869 9 South Amfoang +Southwest Amfoang 143,933 56,334 16,756 39,578 10 North Amfoang + Northwest Amfoang + East Amfoang 394,.231 154,298 15,835 138,463 636.956 155.242 481,714 3.75 Constanta; 2.55 = DM native grass daily intake by AU in 1 year Analysis Location Quotation LQ is used to determine whether an area is categorized as a base livestock area or non-base. If the numbers of Location Quotation more than 1 indicates that the location is a livestock base area, whereas if less than one the area has not become the basis of livestock. Table 16 Location Quotation LQ values No Sub-District Cattle Population in 2009 Location Quotient 1 Semau + South Semau 8,330 1.0 2 West Kupang + Nekamese 9,746 1.1 3 Central Kupang + Taebenu 6,405 1.0 4 Amarasi + South Amarasi + West Amarasi + East Amarasi 19,923 1.0 5 East Kupang + East Amabi Oefeto + Amabi Oefeto 36,060 1.0 6 Sulamu 8,146 0.9 7 Fatuleu + West Fatuleu + Central Fatuleu 17,829 1.0 8 Takari 16,212 1.1 9 South Amfoang + Southwest Amfoang 16,756 0.9 10 North Amfoang + Northwest Amfoang + East Amfoang 15,835 1.0 Base on LQ analysis of at 10 areas in Kupang District showed that most areas is the livestock base area, except in Sub-District Sulamu, Fatuleu, South Amfoang, and Southwest Amfoang are not be the base area, although the difference is only 0.1 compared to other regions. In both areas with values below 1 may be an area for local food advocates who have included the area surrounding the base; local government policy to increase the number of cattle population in the two areas will greatly assist in improving the status of the livestock base.

4.4 Model for Prediction of Feed Security

At a time when productivity is increases and the need of L.leucocephala for cattle as fodder been able to exceed the amount provided by the existing land, the expansion of land that is not L.leucocephala to become L.leucocephala field will be happen, of course with considering several policies that already exist like a constraint regions.