| Comparison of structural diversity of tree-crop associations in Peripheral and Buffer zones of Gachabari Sal forest area, Bangladesh |
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| 作者单位： | Institute of Silviculture University of Natural Resources and Applied Life Sciences，Vienna，Austria，Institute of Silviculture，University of Natural Resources and Applied Life Sciences，Vienna，Austria，Department of Agronomy，Bangladesh Agricultural University，Mymensingh-2202. Bangladesh，IUCN，Bangladesh，Department of Agroforestry，Bangladesh Agricultural University，Mymensingh-2202. Bangladesh |
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| 摘 要： | The structural diversity of different tree-crop associations were studied at Gachabari Sal forest area of Madhupur Garh on Buffer and Peripheral Zone during 2006. The total density, basal area of trees in the Buffer and Peripheral Zone were 155.5 trees·hm^-2, 795.4 trees·hm^-2 and 3.9 m^2·hm^-2, 5.8 m^2·hm^-2, respectively. No regeneration and natural trees were found in Peripheral Zone and the Zone is totally occupied by exotic species where the Buffer Zone comprised of both natural and exotic trees. The Peripheral Zone belonged to younger and smaller trees whereas the Buffer Zone belonged to mixture of smaller, taller, younger and mature trees simultaneously. For the practicing of different agroforestry systems both Zones have lost their original characters of Sal forest.
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| 关 键 词： | 孟加拉国 天然林区 周边地区 缓冲区 林木-作物群丛 结构多样性 立木结构 |
| 收稿时间： | 2006-12-30 |
| 修稿时间： | 2007-01-21 |
Comparison of structural diversity of tree-crop associations in Peripheral and Buffer zones of Gachabari Sal forest area,Bangladesh |
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| Authors: | M M Rahman H Vacik F Begum A Nishad K K Islam |
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| Institution: | (1) Institute of Silviculture, University of Natural Resources and Applied Life Sciences, Vienna, Austria;(2) Department of Agronomy, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh;(3) IUCN, Bangladesh;(4) Department of Agroforestry, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh |
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| Abstract: | The structural diversity of different tree-crop associations were studied at Gachabari Sal forest area of Madhupur Garh on Buffer and Peripheral Zone during 2006. The total density, basal area of trees in the Buffer and Peripheral Zone were 155.5 tree·hm-2,795.4 trees·bm-2 and 3.9 m2·hm-2, 5.8 m2·hm-2, respectively. No regeneration and natural trees were found in Peripheral Zone and the Zone is totally occupied by exotic species where the Buffer Zone comprised of both natural and exotic trees. The Peripheral Zone belonged to younger and smaller trees whereas the Buffer Zone belonged to mixture of smaller, taller, younger and mature trees simultaneously. For the practicing of different agroforestry systems both Zones have lost their original characters of Sal forest. |
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| Keywords: | Structural diversity Tree-crop associations Sal Peripheral and Buffer Zone |
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