Agroforestry in land;ground conservation and water [is] how influence of[is condition of vegetasi a[n farm carpet in arranging to arrange water improve;repair fertility of farm. How solidarity of pattern plant and kolaborasi between kinds of economic activity being based on agroforestry which [is] flange repair of environmental condition, so that benefit of multi function can be felt.
Influence of tree tutupan to current [is] in the form of ( Noordwijk, al et. 2004 :
1. Rainwater Intersepsi. During occurence of rain, tree coronet earn and mengintersepsi of menyimpan a number of rainwater in the form of flimsy coat [of] water.
2. ( waterfilm) [at] surface of bar and leaf later on will experience of evaporation before down to the ground. To the number of water able to evaporation and diintersepsi depend on wide [of] index [of] leaf ( LAI), characteristic surface of leaf, and rain characteristic. Intersepsi represent important component if amount of low rainfall, but can be disregarded [by] if high rainfall. If high rainfall, role of important tree intersepsi in its bearing with reduction of floods.
3. Energy beat rainwater. Vegetasi and coat as anxious as protecting surface of land;ground of direct blow [of] raindrop able to break land;ground aggregate, so that happened condensation of land;ground. Fall to pieces land;ground particle will cause gagging of macro land;ground pore so that pursue to infiltrate ground water, as a result surface limpasan will mount. Role of coat as anxious as in protecting surface of land;ground very influenced by its resilience to decay; as anxious as high with quality ( containing hara, especially high N) will easy to moulder so that function closing of surface of land;ground [do] not go along way.
4. Infiltrate water. Process infiltrate depend on land;ground structure [at] surface coat and various coat in land;ground profile. Land;Ground structure [is] also influenced by activity of biota which [is] its source [of] him depended to materials of organic ( as anxious as on the surface of, organic eksudasi by root, and dead roots). Availibility of food to biota ( especially earth-worm), important to anticipate the existence of process of peluruhan and gagging of macro pore [of] land;ground.
5. Water absorption. During the year absorbent crop [of] water from various geology to support process of transpirasi [at] surface of leaf. Factor– factor influencing the amount of absorption irrigate by tree [is] tree fenologi, distribution grow on and tree physiology respon to grasp of parsial available water. Absorption irrigate by tree among occurence of rain will influence the amount of water able to be kept from occurence of next rain, so that hereinafter will influence process infiltrate and surface stream. Absorption irrigate [at] dry season, specially from geology under will influence the amount of water available to ‘ tardy stream’ ( flow slow).
6. drainage of Lansekap. Level of drainage a[n lansekap ( unfold farm) influenced by some factor for example crudity of surface of land;ground, relief surface of conducive land;ground [of] water live in surface of longer land;ground so that push the happening of infiltrateing, formed channel type effect of stream surface of which can trigger the happening of ‘ stream quickly ground water’ ( flow quick).
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