Financial viability and conservation role of betel leaf based agroforestry： an indigenous hill farming system of Khasia community in Bangladesh  

基于槟榔叶农林复合系统的经济活力和保护作用：孟加拉Khasia部落原有的农耕系统

作　　者：Mizanur Rahman Mohammad Mahfuzur Rahman Mahmuda Islam 

机构地区：[1]Dept. of Forestry and Environmental Science, Shahjalal University of Science and Technology, Sylhet-3114, Bangladesh [2]lnstitute of Forestry and Environmental Science, University of Chittagong, Chittagong-4331, Bangladesh

出　　处：《Journal of Forestry Research》2009年第2期131-136,I0002,共7页林业研究（英文版）

摘　　要：A study was conducted to investigate the cultural and financial management techniques of betel leaf based agroforestry system practiced in or near homegardens of Khasia community in Jaintapur Upazila in the district of Sylhet, Bangladesh. The Khasia is an edu- cated community where 100% of Khasia people were literate, a stunning fact for this ethnic community in Bangladesh. The average family size in the study area was 7.68, with a ration of male and females of 141：100. The homegardens of the Khasia are rich in species composition, which 15 timber species, 22 horticultural species, six medicinal species, 13 annual crops including leafy vegetables, seven species of spices and five species of bamboo were identified along with betel leaf. The Khasia is an economically prosperous community with the minimum family incomes of Tk 4 000 per month （Tk. 70=1 US Dollar）. Betel leaf based agroforestry is very common being a prevalent source of income. About 95.45% of the households are involved in betel leaf husbandry. The mean annual income from one hectare of be- tel leaf plantation was estimated to be Tk. 80979. This practice was proven to be a profitable business where the benefit cost ratio was cal- culated to be 4.47. Moreover, the species composition in the betel leaf plantation area （the forest area once utilized by Khasia for shifting cultivation） was found to be very promising to play the significant role in conservation of biological diversity making the practice a sustainable agroforestry system.在孟加拉锡尔赫特地区Khasia部落家庭园地或其周围，对基于槟榔叶农林复合系统的文化产业与经济管理技术进行了调查研究。Khasia是一个受教育较普及的社区；该区家庭平均大小为7．68人，男女比率为141：100；家庭园地里物种丰富。在槟榔农林复合系统中共有15个木材品种，22个园艺种，6个药用植物种，以及13个一年生作物种（包括一些叶用蔬菜），7个香味料植物种和5个竹类种。Khasia也是一个经济繁荣区，最小家庭月收入57美元。槟榔收益是当地居民收入的重要来源。该区95．45％的家庭涉及槟榔农事。槟榔人工林年平均收入约为1157美元／公顷，此农林复合生产项目的收益．投入比率为4．47。槟榔人工林区内物种丰富度较高，对维持农林复合系统可持续性以及系统内生物多样性保护具有重要意义。图2表3参19。

关 键 词：AGROFORESTRY betel leaf CONSERVATION HOMEGARDEN Khasia 

分 类 号：S753.536[农业科学—森林经理学]