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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Biomass productivity and carbon stocks of farm forestry and agroforestry systems of leucaena and eucalyptus in Andhra Pradesh, India
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Biomass productivity and carbon stocks of farm forestry and agroforestry systems of leucaena and eucalyptus in Andhra Pradesh, India

机译：印度安得拉邦的白桦和桉树的农林业和农林业系统的生物量生产力和碳储量

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Increasing concentration of greenhouse gases in the atmosphere and the adverse effects associated with climate change have necessitated the need for identification of systems with high carbon sink as a mitigation strategy. Tree-based systems with short rotation species either as farm forestry or agroforestry systems have the potential to sequester carbon in a short period. Leucaena and eucalyptus-based systems, mostly planted at closer spacing, are widely distributed in several districts of Andhra Pradesh, India. The objective of this communication is to analyse the carbon storage of two land-use systems (farm forestry and agroforestry) with two short rotation tree species, viz. leucaena and eucalyptus, and to evaluate their carbon sequestration potential in degraded lands. Trees in farm forestry systems were close planted at 1 × 1 m and 3 × 2 m, whereas those in agroforestry systems were planted at wider spacing of 3 × 0.75 m and 7 × 1.5 m in paired rows, in leucaena and eucalyptus respectively. The carbon stock of leucaena farm forestry system was 62 Mg/ha, whereas in eucalyptus farm forestry system, it was 34 Mg/ha for a rotation of 4 years. Biomass and carbon accumulation were relatively higher in farm forestry systems and the rate of accumulation was highest during the third year. It is concluded that, leucaena and eucalyptus systems can play an important role as carbon sinks and contribute significantly to the removal of CO2 from the atmosphere.
机译：大气中温室气体浓度的增加以及与气候变化相关的不利影响，有必要确定具有高碳汇的系统作为缓解策略。轮作物种短的以树木为基础的系统（例如农林业或农林业系统）有可能在短期内隔离碳。基于Leucaena和桉树的系统，大多以较近的间距种植，广泛分布在印度安得拉邦的几个地区。本交流的目的是分析两种具有短轮伐树种的土地利用系统（农场林业和农林业）的碳存储。银合欢和桉树，并评估其在退化土地上的固碳潜力。农场林业系统中的树木密植在1×1 m和3×2 m上，而农林业系统中的树木则在成对的行中以3×0.75 m和7×1.5 m的较宽间距分别种植在白桦和桉树上。银合欢农场林业系统的碳储量为62 Mg / ha，而桉树农业林业系统中的碳储量为34 Mg / ha，连续4年。农田林业系统的生物量和碳积累相对较高，并且在第三年的积累速率最高。结论是，白蜡树和桉树系统可以作为碳汇发挥重要作用，并且对从大气中去除CO2起到重要作用。

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