forest conservation

Referring to quality of farm physical, efficacy a[n system management of dry la¬han ( like for example conservation usahatani) [is] also limited by conditions- conditions of agroekologis ( especially according to land;ground and availability of water). Concord of condition of agroeko¬logis become the basis for fundamental in development of commodity agriculture of dry farming. Deviation of this conditions not merely of economic loss menimbul¬kan, but also will result biaya-sosial which in the form of kemero- sotan of[is quality of farm sumberdaya ( Brinkman and of Smyth, 1973). [In] certain locations, like farm of kering-kritis [in] part of pate;upstream of DAS, the social cost can have the character of internal like apparition of critical land;grounds and have the character of eksternal like sedi¬mentasi [in] various territorial water facility ( Rauschkolb, 1971). Soekardi and of Eswaran ( 1991) telling some process and characteristic that goes on in mountain ekosistem ( areas highland) which can become constraint or supporter of system development of going concern agriculture. Three characteristic of ekosistem very important [is] ( 1) climate, ( 2) landform, and ( 3) land;ground sumberdaya. While two process which related to the marking [is] process of geomorfik processs and of pedologis. Condition of climate distinguished by height of place more than 800 dpl m, annual rainfall more 2000 mm, temperature of rataan 15-29oC with land;ground temperature regime of isothermik or of isohiperthermik. [At] condition of like this usually clammy regime variation [of] [of] land;ground [is] Backwoods and Ustik. Condition of mountain ekosistem like this have excellence of comparability to development of type berba¬gai usage of agriculture farm with many system choice of pertanaman ( systems cropping). Potency like this practically inviting many invesment from outside area to " tilling" farm morely intensive. In the end this matter will be able to result appearance " difference" ever greater [among/between] intensity penggu¬naan of sumberdaya with characteristic of sumberdaya. If this abysmal difference [of] energy support sumberdaya