Increase [of] Face water go out to sea besides resulting change [of] current go out to sea [at] coastal area region also result to destroy mangrove ekosistem, just which is on in this time its condition have very is. Wide [of] [of] mangrove forest in Indonesia continue to experience of degradation from 5.209.543 ha ( 1982) downhill become 3.235.700 ha ( 1987) and downhill again till 2.496.185 ha ( 1993). In range of time 10 year ( 1982-1993), have happened degradation [of] mangrove forest ± 50% from totalizeing luasan initialy. If existence [of] indefensible mangrove again, hence : coastal abrasi will be frequent happened for no hold him waving. contamination from river to sea will mount for no polutan filter him, and aquaculture conducting zona even also will be threatened by itself " The wide-speading of water intrusi go out to sea besides resulted from the happening of increase [of] water face go out to sea [is] also triggered by the happening of subsidence land effect (pengaruh/ akibat)of exploitation [of] ground water redundantly. For example, estimated [by] [at] period [among/between] 2050 till 2070, hence sea water intrusi will include;cover 50% wide [of] [of] Jakarta North region " Trouble to condition of society sosial-ekonomi that happened among others [is] : ( a) trouble to by-pass network and train [in] Pantura Java and Timur-Selatan Sumatra ; ( b) pond to setlement [of] resident [at] coastal area town residing in [at] Pantura Java region, Sumatra part of East, Kalimantan part of South, Southwestern Sulawesi, and some coastal area spot [in] Papua ; ( c) the loss of conducting farm like rice field, brackish, fishpond, and mangrove for the width of 3,4 million hectare or equivalent with US$ 11,307 million ; this picture even become more is ' blur' if related to existence [of] sentra-sentra produce food which only gyrating 4 % [is] just the than wide [of] [of] national region, and ( d) degradation [of] farm productivity [at] food sentra-sentra, as in DAS Citarum, Brantas, and very Saddang [of] krusial to continuity of self sufficiency in food in Indonesia. As for area in Indonesia which is [is] potential to be hit [by] impact increase [of] sea water.
