Bukit Barisan Selatan National Park Climate change Dipterocarpaceae Perception Persepsi Perubahan iklim climate kerentanan mangrove masyarakat pesisir phenology Banten Curah hujan dan marginal adaptation coastal community community forest customary forest customary law community hutan adat hutan kemasyarakatan impacts kesesuaian lereng masyarakat hukum adat social economic sosial ekonomi tapak vulnerability