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Socio-economic and environmental impacts of casuarina shelterbelt in the Chittagong coast of Bangladesh

机译：孟加拉国吉大港海岸木麻黄防护林带的社会经济和环境影响

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The rapid growth of Casuarina equisetifolia , a popular tree species for shelterbelt plantation, attracts the world climate change practitioners for its potential for climate change mitigation and adaptation in the coastal zones. Storage of carbon in the rapidly grown biomass of this species creates special interest in the arena of climate change mitigation practices. To understand the public perceptions of the effect of the casuarina shelterbelt and carbon storage potential in the Bangladesh coast, a socio-biological study was conducted in the Parki beach area, where Casuarina equisetifolia is the major tree species. This study was conducted by a questionnaire survey to find out the observation of coastal people and to assess environmental, economic and social impacts of the casuarina shelterbelt. The study found that the shelterbelt reduced wind speed, increased the size of sand dunes, improved the aesthetic value, increased the protection facilities against cyclones, and enhanced the attractiveness of the beach for tourism. Although casuarina trees have inhibited the native species as undergrowth, the shelterbelt has increased the supply of fuel-wood for local people. The aboveground biomass density in the shelterbelt was found to be 162.58 ± 4.52 t ha~(?1) with a mean annual increment of 8.56 ± 0.24 t ha~(?1) yr~(?1), while the aboveground carbon density was found to be 73.16 ± 2.04 t ha~(?1) with a mean annual increment of 3.85 ± 0.11 t ha~(?1) yr~(?1). The study is expected to contribute to the field of climate change mitigation and adaptation in Bangladesh.
机译：木麻黄（Casuarina equisetifolia）是一种用于防护林种植的流行树种，其迅速生长吸引了世界气候变化实践者，因为它具有缓解和适应沿海地区气候变化的潜力。在该物种快速生长的生物质中的碳存储引起了气候变化缓解实践领域的特别关注。为了了解公众对孟加拉国海岸木麻黄防护林带的影响和碳存储潜力的认识，在帕西海滩地区进行了社会生物学研究，那里的木麻黄是主要的树种。这项研究是通过问卷调查进行的，目的是发现沿海人的情况并评估木麻黄防护林带的环境，经济和社会影响。研究发现，防护林带降低了风速，增加了沙丘的尺寸，提高了美学价值，增加了防飓风的保护设施，并提高了海滩对旅游业的吸引力。尽管木麻黄树抑制了当地树种的生长，但防护林带增加了当地人的薪柴供应。防护林地上生物量密度为162.58±4.52 t ha〜（？1），年平均增量为8.56±0.24 t ha〜（？1）yr〜（？1），而地上碳密度为实测值为73.16±2.04 t ha〜（？1），年平均增量为3.85±0.11 t ha〜（？1）yr〜（？1）。预计该研究将有助于孟加拉国缓解和适应气候变化领域。

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