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Impacts of floods on forest trees and their coping strategies in Bangladesh

机译:孟加拉国洪水对林木的影响及其应对策略

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During recent years, the Government of Bangladesh, Non-Government Organizations (NGOs), semi-government organizations, private organizations and individuals have established a large number of plantations under different programs viz. social forestry, agro-forestry and avenue plantations with indigenous and exotic tree species without considering their habit and habitats. Along with the indigenous species like Albizia procera, Albizia lebbeck, Mangifera indica, Azadirachta indica, Gmelina arborea, Trewia nudiflora and Artocapus heterophyllus and many exotic species e.g. Swietenia macrophylla, Albizia saman, Dalbergia sissoo, Eucalyptus camaldulensis, Acacia auriculiformis, Melia sempervirens, Acacia mangium etc. have been planted randomly. With increasing trend of climate-induced floods, millions of trees have been dying due to floods and water-logging. The most affected species are Dalbergia sissoo, Albizia saman, Acacia auriculiformis, Acacia mangium and Artocarpus heterophyllus etc. This situation has caused severe impacts on socio-economic conditions of Bangladesh. The impacts involved a significant loss in terms of investment, biodiversity and afforestation program. Little investigations have been conducted to find out the causes of the deaths and also to find out the suitable adaptation practices to reduce impacts of floods on trees. This synthesis focused on the impacts of floods on plantations and also assessed the potential role of traditional forest management practices in addressing the effects flooding on forests in Bangladesh. The study added important information and revealed knowledge gaps on the causes of large forest deaths. It also provided recommendations for policy on the establishment of frequent floods resilient tree crop plantations.
机译:近年来,孟加拉国政府,非政府组织(NGOs),半政府组织,私人组织和个人根据不同的计划建立了许多种植园。社会林业,农林业和林场,种植土著和外来树种,而不考虑其习性和栖息地。除了本地物种外,如白花海棠,白花海棠,印度芒果,阿扎迪拉赫塔,阿梅尔(Gmelina arborea),T(Trewia nudiflora)和太子参(Artocapus heterophyllus)等许多外来物种。随机种植了Swietenia macrophylla,Albizia saman,Dalbergia sissoo,cameoulensis Eucalyptus camaldulensis,acacia auriculiformis,sempervirens,Acacia mangium等。随着气候导致洪水泛滥的趋势,数以百万计的树木因洪水和涝灾而死亡。受影响最严重的物种是黄檀,西洋参,金合欢,马占相思和面包果等。这种情况对孟加拉国的社会经济状况造成了严重影响。影响包括投资,生物多样性和造林计划方面的重大损失。很少进行调查以找出造成死亡的原因,也没有找到适当的适应措施以减少洪水对树木的影响。该综述着重于洪水对人工林的影响,还评估了传统森林管理做法在解决洪水对孟加拉国森林的影响方面的潜在作用。这项研究增加了重要的信息,并揭示了有关造成大量森林死亡的原因的知识空白。它还为建立频繁抗洪抗灾林木种植园的政策提供了建议。

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