南亚选定地区陡峭山区农业系统的气候适应能力

Thusitha Bandara, B. Marambe, G. Pushpakumara, Pradeepa Silva, R. Punyawardena, S. Premalal, L. Manawadu, M. G. Miah, K. Dahal
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引用次数: 2

摘要

本研究评估了南亚丘陵地区陡峭地形下现有农业系统的气候适应能力和特征。所考虑的农业系统位于海拔(cid:21) 300米的山区,分别位于斯里兰卡(哈顿和威利马达)的两个地点,以及孟加拉国(吉大港)和尼泊尔(吉库科拉)的一个地点。根据适应能力(ADC)、吸收能力(ABC)和转换能力(TC)下的31个参数,计算每个家庭的气候适应指数(CRI)得分,从0(可忽略的恢复能力)到1(非常高的恢复能力)不等。利用GIS的IDW插值技术对4个研究点进行了空间表征。424户家庭的CRI得分均在0.36 ~ 0.76之间,其中哈顿的平均CRI最高(0.67),其次是威利马达(0.60)、吉库霍拉(0.59)和吉大港(0.48)。不同的人口、社会经济和环境参数对农业系统单元的气候适应能力水平有影响。确定适应气候变化的农业系统的良好管理做法,并在脆弱的系统中实施这些做法,将提高南亚陡峭山区农业社区的适应能力和福祉。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Climate resilience of farming systems in steep mountain terrain of selected regions in South Asia
This study assessed the climate resilience and characterized the existing farming systems in steep terrain in the hilly regions in South Asia. The farming systems considered were at an elevation (cid:21) 300 m in the mountain regions of two sites from Sri Lanka (Hatton and Welimada) and one site each from Bangladesh (Chittagong) and Nepal (Jhikhu Khola). A Climate Resilient Index (CRI i ) score, varying from 0 (negligible resilience) and 1 (very high resilience), was calculated for each household using 31 parameters under Adaptive Capacity (ADC), Absorptive Capacity (ABC) and Transfor-mative Capacity (TC). To spatially represent the CRI i , the four study locations were mapped using Inverse Distance Weighted (IDW) interpolation technique of GIS. All 424 households in the study sites scored a CRI i between 0.36 and 0.76, while the average CRI was the highest in Hatton (0.67), followed by Welimada (0.60), Jhikhu Khola (0.59) and Chittagong (0.48). Different demographic, socioeconomic and environmental parameters have contributed to the level of climate resilience of farming system units. Iden-tification of good management practices of the climate-resilient farming systems and implementing those practices in vulnerable systems would increase the resilience and well-being of farming communities in steep terrain of mountain regions in south Asia.
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