Evaluation Of Land Suitability For Jati Trees (Tectona grandhis L. F) In Watershed At 2011 (Study of implementation one milion planting program in wonogiri regency at 2009)

Abstract The aims of the research are : (1) to find out the level of actual land suitability and potencial land suitability for jati trees in Tirtomoyo river flowing area and (2) to find out the match level of jati’s seed attempting towards of land suitability level in upper course Tirtomoyo river flowing area. This research uses descriptive methods approach with type and research realization methods used the survey’s methods. The Summarize of this research as follows divided at two : Tirtomoyo upper course river flowing area has 12 subclass of actual land suitability for jati trees who has variation of land suitability class, at first permanently not suitable (N2), marginally suitable (S3) and sufficiently suitable (S2). That one has retard factors which following different as one as other. Match of attempt jati’s seed planting toward class of land suitability divided in 2 class, namely match (T) with large 3402 Ha or 32,56 % and unmatch (TT) with large 5.242 Ha or 48,89 %