THE STRUCTURE OF LOWLAND RAIN-FOREST AFTER SELECTIVE LOGGING IN WEST KALIMANTAN, INDONESIA
THE STRUCTURE OF LOWLAND RAIN-FOREST AFTER SELECTIVE LOGGING IN WEST KALIMANTAN, INDONESIA
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DOI：
10.1016/0378-1127(94)90007-8
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发表时间：
1994-08-01
影响因子：
3.7
通讯作者：
KARTAWINATA, K
中科院分区：
文献类型：
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作者：
CANNON, CH;PEART, DR;KARTAWINATA, K
为了量化森林结构后，机械化选择性采伐在印度尼西亚西加里曼丹的龙脑香林，我们比较了未采伐的森林和网站记录6个月，1年和8年前采样。 总面积的41%是沼泽森林，与低地森林交错。 小块的低地森林（占低地面积的15%）和85%的沼泽森林逃脱了伐木干扰。 76%的低地森林的树冠中度至重度干扰伐木，45%是在开放的差距或先锋植被。 只有有限的证据冠层发展后8年。 在低地网站记录6个月或1年前采样，森林地面被干扰的道路，拖拉机的轨道和滑道面积的16%。 局部冠层干扰增加，但在减少的速度，与断面积提取量。 胸径大于50 cm的龙脑香树占采伐前断面积的70%。 收获除去了62%的预切割的龙脑香断面积和43%的预切割的总断面积。 小型龙脑香树（直径小于50厘米，低于可收获的大小）遭受高死亡率，由于伐木，可能会限制未来的木材生产。 伐木造成森林类型和干扰程度的复杂空间镶嵌，提出了养护和管理的备选办法。 传统机械化伐木无法采伐的沼泽森林木材资源可能由当地村民手工采伐，从而增加村民的收入和特许权的收入。 成片的未砍伐森林可以维持一些脊椎动物和树木物种。 本研究报告对森林结构的详细分析提供了评估管理备选办法可持续性所需的部分基本资料。 为了建立印度尼西亚龙脑香林生态健全管理系统所需的林分发展模型，需要关于再生、树木生长和存活率的更多数据。
To quantify forest structure following mechanized selective logging in a dipterocarp forest in West Kalimantan, Indonesia, we compared unlogged forest and sites logged 6 months, 1 year and 8 years prior to sampling. Forty-one percent of the total area was in swamp forest, interdigitated with lowland forest. Small patches of lowland forest (15% of lowland area) and 85% of swamp forest escaped logging disturbance. The canopy of 76% of lowland forest was moderately to heavily disturbed by logging; 45% was in open gap or pioneer vegetation. There was only limited evidence of canopy development after 8 years. In lowland sites logged 6 months or 1 year before sampling, forest floor was disturbed in 16% of area by roads, tractor tracks and skid trails. Local canopy disturbance increased, but at a decreasing rate, with the amount of basal area extracted. Dipterocarp trees over 50 cm in diameter at breast height (DBH) comprised 70% of total basal area before logging. The harvest removed 62% of pre-cut dipterocarp basal area and 43% of pre-cut total basal area. Small dipterocarp trees (less than 50 cm DBH, below harvestable size) suffered high mortality due to logging, possibly limiting future wood production. Logging resulted in a complex spatial mosaic of forest types and disturbance levels, suggesting options for conservation and management. Swamp forest timber resources, unharvested by conventional mechanized logging, could potentially be hand-logged by local villagers, increasing both villagers' incomes and revenue to concessions. Patches of unlogged forest may sustain some vertebrate and tree species. The detailed analysis of forest structure in this study provides part of the essential information needed to assess sustainability of management options. For the modeling of stand development that is necessary to develop an ecologically sound management system for dipterocarp forests in Indonesia, additional data on regeneration, tree growth and survival rates are required.