KAJIAN NILAI BULK DENSITY TANAH PADA AREAL TANAMAN JATI (Tectona grandis), MAHONI (Swietenia mahagoni), dan LEGARAN (Alstonia spectabilis R.Br), PADA LOKASI PETAK UKUR PERMANEN (PUP) HUTAN WANAGAMA I
| Main Authors: | , REYHAN JATI BAYU .K, , Daryono Prehaten, S.Hut, M.Sc. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2014
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/132864/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=73409 |
Daftar Isi:
- Forest of Wanagama I is a forest that have many functions in ecology, socialeconomy, education, and others. In education field, forest of Wanagama I is become an education forest that have big role in forestry field. Then need existence of innovations into development and management, one of those that can be used within aid development of Wanagama I forest Gunungkidul is by make permanent measurement partition (PUP) in every partition in the forest of Wanagama I. PUP is make on the different tracks and stands so that can represent reality condition of Wanagama I. One of thing that can be researched on the PUP concern to one of physic land character that is bulk density. This research is aims to know and collect early data relationship of bulk density value on the hardwood plants (Tectona grandis. L.f) partition 6 and 7, Mahogany (Swietenia mahagony jacg) partition 16, and Legaran (Alstonia spectabilis) partition 15 at forest of Wanagama I. Research method that is used is 2 those are in the field and in the laboratory. 1) Field research is high and diameter measurement of three types of stands above and 2) laboratory research is done by drying sample in temperature 105o C until reaching constant weight and then calculated using formula BD=(W2-W3)/Volume (gr/m3) to get bulk density value on the land sample 4 locations above. From the result research is known that high and diameter of the four stands are about 0,5-4 m to the high and diameter is about 0,5 � 4,5 cm. it shows plants are still pale so those are very potential to be use as PUP area because the growth can be observed continually every year. Average value of bulk density in the whole location shows high values those are for hardwood plant (partition 7 and 6), Mahagony and Legaran in orderly 1,54 gr/cm3, 1,61 gr/cm3, 1,50 gr/cm3, and 1,62 gr/cm3. The matter shows high land density thus on the research location need to be done land management by mechanic instrument and add organic material to fix land density so that plant�s growth will be better.