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首页> 外文期刊>Journal of Tropical Forest Science >EFFECT OF LOGGING ON THE STRUCTURE AND REGENERATION OF IMPORTANT FRUIT BEARING TREES IN A WET EVERGREEN FOREST, SOUTHERN WESTERN GHATS, INDIA
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EFFECT OF LOGGING ON THE STRUCTURE AND REGENERATION OF IMPORTANT FRUIT BEARING TREES IN A WET EVERGREEN FOREST, SOUTHERN WESTERN GHATS, INDIA

机译：采伐对印度西南高止山脉湿性常绿森林中重要果树的结构和再生的影响

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摘要

The effect of selective and clearcut logging on stem density and regeneration of six important resource trees, namely, Cullenia exarillata, Aglaia bourdittonii, Artocarpus heterophyllus, Myristica dactyloides, Gomphandra coriacea and Palaquium ellipticum, were studied Forests logged 24 years ago were compared with an unlogged forest Belt transects (10 x 100 m) were established to enumerate adult trees (>10 cm dbh). Subplots (10 x 10 m) along the belt transects at 0-10, 40-50 and 90-100 m were enumerated for saplings (1-10 cm dbh). Adult stem density was significantly lower in both selectively logged and clearcut logged sites for all species except A. heterophyllus, Palaquium ellipticumwas missing in clearcut logged sites. The higher dbh class (>50 cm) remained missing in the logged forests after 24 years. Sapling densities of A, heterophyllus and P. ellipticumweie significantly reduced in the selectively logged forests. In the clearcut logged forest, other species had significantly reduced saplingdensity except A, bourdillonii. Palaquium ellipticum had no saplings in the clearcut logged forest The adultisapling ratios were generally high in the unlogged forest Low adult density and reduced regeneration potential of these species in the logged sites suggest that the medium elevation evergreen forest at Kalakad-Mundanthurai Tiger Reserve, Agasthyamalai Range, is degraded by logging
机译：研究了选择性砍伐伐木对六种重要资源树的生长密度的影响，这六种重要资源树分别是白花草柏，白花苜蓿，异果面包果，肉豆蔻，Gomphandra coriacea和Palaquium ellipticum。建立森林带样带（10 x 100 m）来枚举成年树木（> 10 cm dbh）。沿树状样带在0-10、40-50和90-100 m的子样（10 x 10 m）被列举为小树苗（1-10 cm dbh）。在除伐木采伐场以外的所有杂种中，除杂叶盲曲草以外，所有物种的选择性伐木和伐木采伐处的成年茎密度均显着降低。 24年后，伐木林中仍缺少较高的dbh级（> 50 cm）。在选择性采伐的森林中，A，太子参和P. ellipticumweie的树苗密度显着降低。在未砍伐的伐木森林中，除了伯德罗伊虫（A. bourdillonii）以外，其他物种的树苗密度显着降低。原始伐木森林中没有椭圆形的树苗。未伐木森林中成虫的成虫率通常很高。伐木场中这些物种的成年密度低，再生潜力降低，这表明Agasthyamalai山脉Kalakad-Mundanthurai老虎保护区的中海拔常绿森林，由于记录而降级

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