Abstract
Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist. Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units. Land suitability classification using the criteria of the Technical Guidelines for Evaluation of Land For Agricultural Commodities of Soil Research Institute (2003) is by matching between the haracteristics of the land with the requirements of growing plants was evaluated. Types of agricultural crops that are evaluated include plantation crops and food crops hotikultura fruits. Suitability actual land (land suitability based on survey data) are mostly classified as unsuitable (N), and marginally suitable (S3). Qualities/characteristics as the land that is the main limiting factor, among others: quality of land erosion, slope, water availability, temperature, rooting media (soil texture and coarse material). Sustainable land use planning can be recommended with agroforestry, accompanied by vegetative conservation measures because it is cheaper and easier to be carried out by farmers. Recommended cultivation effort is a combination of timber plants with horticultural crops of fruits with the provisions of at least 40% must be enclosed timber. Plant timber that can be developed between the other plants that are not too heavy canopy.
Highlights
Evaluation of land suitability to increase the productivity of degraded lands in the Unda watershed aims: providing a database of land suitability for land use planning in support of sustainable agricultural development, providing spatial information, and recommendations in accordance with the land use plan of inhibiting factors that exist
Identification of characteristic land quality evaluation survey carried out by the method of land with exploration area of research followed by soil sampling at some sample of land units
Sustainable land use planning can be recommended with agroforestry, accompanied by vegetative conservation measures because it is cheaper and easier to be carried out by farmers
Summary
Unda watershed is the largest mountainous, and there are development of watershed in Bali Province with 91,585 ha illegally C digging sites in some places. The provision of a database and quality of degraded agricultural land to on the potential and pattern of land support national food security, (2) Establish management in a larger scale is absolutely formulation of land-based area-specific necessary as a reference in land land-use management practices, (3) management in a watershed, especially in Develope a watershed-based land suitability the Unda watershed which is highly database for urban planning (4) Establish vulnerable to land degradation. The measures/land management are required to basic principle of drafting the land use plan be conducted on each surveyed land unit for used is increasing agricultural production the concerned Both physically and economically, The series of activities in this study sustainably, without damaging the include: collection and evaluation of environment. Ranges from moderate to somewhat high; And the erosion hazard rate of 87% is Land Suitability heavy to very severe
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