Above-ground Biomass and the Growth of Giant Ipil-ipil [Leucaena leucocephala (Lam.) de Wit] Plantations in Northern Mindanao Island, Philippines

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト

 Above-ground biomasses of nine giant ipil-ipil plantations were surveyed in northern Mindanao Island, Philippines. The strain surveyed was K-8 of a Salvador type. The biomass of each part varied widely with the stand with 11-155 m3/ha for stem volume, 6-78 ton/ha for stem dry weight, and 8-96 ton/ha for total above-ground dry weight of tree layer. The leaf amount ranged from 0.7 to 3.6 ton/ha in dry weight or from 1.26 to 6.73 ha/ha in area, but the amount of closed stands was about 2.0-3.6 ton/ha or over 3.0 ha/ha. This amount agreed well with that of deciduous broadleaved forests in Japan. The apparent biomass density, the quotient of the above-ground biomass of tree layer divided by its average height, fell within a range between 0.46 and 0.72 kg/m3 in closed stands. These values were approximately half as small as those of forests in Japan. Since the mean stem increment of each stand fluctuated from 10 to 50 m3/ha/year, the wide variations of the biomass seemed to be due to stand age as well as to site quality. An estimation of the growth process showed that on a good site the stem volume reached 200 m3/ha 3-4 years after planting, but on a poor site only 40 m3/ha.

刊行年月日
作成者 YOICHI KANAZAWA AKIRA SATO ROGELIO S. ORSOLINO
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
15
3
開始ページ 209
終了ページ 217
言語 eng

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