Revisiting the REDD+ experience in Indonesia: Lessons from national, subnational and local implementation

Land elevation and slope exposition impacts on rubber wood production volume under agroforestry system

“…The air temperature and air humidity during the survey (Table 2) was normally recorded in the tropical area. These variables are slightly different from [10] i.e 26.1 (SE=1.9) o C and 71.4 (SE=1.7)% for the average of air temperature and air humidity respectively. The difference may be caused by the differences of range altitude both the area of research i.e from 349m to 1,788m ASL that lies in the parallel in between 05º48' -05º22' S The other possibility that made the differences was the time of conducting on of field research etc.…”

“…But both research were employed merely on the rubber seed nursery conditions, that may be give very different effect in case on applying at opened field area with various of environment factors including the terrain of land such as elevation and slope exposition. In relation to this matter, [10] reported that for every moved up a-100 m across the landscape there would be improvement in bean quality indices of a-1000 weight in one hand but worsen the indices of float bean in water soaking in the other hand. Further [10] also reported that the west ward slopes exposition had no effect significantly on the first indices but on the second indices respectively.…”

“…In relation to this matter, [10] reported that for every moved up a-100 m across the landscape there would be improvement in bean quality indices of a-1000 weight in one hand but worsen the indices of float bean in water soaking in the other hand. Further [10] also reported that the west ward slopes exposition had no effect significantly on the first indices but on the second indices respectively. We are interesting in revealing the effect of the two terrain land attributes on rubber wood volume production.…”

“…The first category is the slope exposition direction that prominent in accepting the morning solar beam radiation namely the east ward. According to [10] the east direction is the prominent face in accepting solar beam radiation in relation to photosynthesis for almost tropical crops as coffee robusta (Coffea canephora). So that we established the east ward as the reference for three other categories slope direction .…”