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

查看全文 作　　者：C. Sudhakar [1]Reddy;Shilpa [1]Babar;Giriraj [2]Amarnath;Chiranjibi [3]Pattanaik

机构地区：[1]Forestry and Ecology Division, National Remote Sensing Centre, Indian Space Research Organization, Hyderabad - 500 625, Andhra Pradesh, India.;[2]MENRIS Division, International Centre for Integrated Mountain Develop- ment, Kathmandu, Nepal;[3]Salim Ali Centre for Ornithology & Natural History, Deccan Regional Sta- tion, 12-13-588/B, Nagarjuna Nagar Colony, Tarnaka, Hyderabad-500 017,Andhra Pradesh, India.

出　　处：《Journal of Forestry Research》索引2011年第22卷第4期,共10页

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. 关键词：组成结构 SHANNON-WIENER指数热带森林植物区系山脉印度生物多样性保护高海拔地区

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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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