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Position: Home > Articles > Structure and floristic composition of tree stand in tropical forest in the Eastern Ghats of northern Andhra Pradesh, India Journal of Forestry Research 2011,22 (4)

Structure and floristic composition of tree stand in tropical forest in the Eastern Ghats of northern Andhra Pradesh, India

作者：

C. Sudhakar Reddy;Shilpa Babar;Giriraj Amarnath;Chiranjibi Pattanai

单位：

Forestry and Ecology Division, National Remote Sensing Centre, Indian Space Research Organization, Hyderabad, India;MENRIS Division, International Centre for Integrated Mountain Development, Kathmandu, Nepal;Salim Ali Centre for Ornithology & Natural History, Deccan Regional Station, Tarnaka, Hyderabad, Indi

关键词：

altitude;conservation;diversity;Eastern Ghats;species compositio

摘要：

The changes in species composition, abundance and forest stand structure were analyzed across altitudinal regimes in tropical for- ests of Eastern Ghats of northern Andhra Pradesh, India. Three 1-ha plots were established with one each in low, medium and high altitudes. A total of 153 species, 2129 stems (709 stems ·ha -1 ) of ≥10 cm girth were enumerated. Species richness and diversity pattern varied along altitud- inal gradient and increased with the altitude. Species richness varied from 52 to 110 species·ha -1 and stand density from 639 to 836 stems·ha -1 with average basal area of 34.39 m 2 ·ha -1 . Shannon–Wiener index (H') ranged from 4.55 to 5.17. Low altitude (i.e., Site 1) is dominated by Xylia xylocarpa (59.22) and Lagerstroemia parviflora (23.90), medium altitude (i.e., Site 2) by Xylia xylocarpa (45.50) Bursera serrata (17.29), and high altitude (i.e., Site 3) has Schleichera oleosa (28.25) Pterocarpus marsu- pium (26.55) as predominant species. Taxonomically, Rubiaceae (12 species), Fabaceae (12), Euphorbiaceae (11), Rutaceae (7) and Lauraceae (7) were dominant families. Density-wise, Fabaceae, Combretaceae, Euphorbiaceae, Anacardiaceae and Myrtaceae were abundant. Thus, conservation assessment based on altitudinal regimes and the information on species structure and function can provide baseline information for monitoring and sustaining the biodiversity.

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Structure and floristic composition of tree stand in tropical forest in the Eastern Ghats of northern Andhra Pradesh, India

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