This article presents a methodology for the valuation of agroforestry with respect to fuelwood supply for cooking and its opportunity cost. The share of fuelwood consumption declined gradually from 78 to 67% and 30 to 14% for cooking in rural and urban India, during 1993–94 to 2011–12, respectively. However, the total consumption of fuelwood increased significantly from 106 to 130 million tonnes (Mt) in the corresponding period due to population growth. Fuelwood and chips are in the process of substitution with Liquefied Petroleum Gas (LPG) gradually and many LPG-adopter households continued to use fuelwood as well. The results verified that the maximum quantity of fuelwood for cooking was obtained from agroforestry systems (64%), followed by forests (24%), and from common property resources (12%) during 2011–12. The annual total calorific energy generated from agroforestry through fuelwood, was estimated at 1297.4 PJ, valued at US$ 4053 million. Around 103 Mt of dry dung cake needs to be burnt to generate the same amount of energy. It is estimated that by replacing dung cake by fuelwood derived from agroforestry systems, could save US$ 1116.6 million annually, sparing the dung cake for use as farmyard manure. In another scenario, if entire energy derived from fuelwood obtained from the agroforestry system is to be replaced by LPG, it would require over 196.4 million additional domestic LPG connections that would incur an expenditure of about US$ 36,487.5 million at the country level for the year 2011–12.

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从农林业系统评估薪材：方法论视角

本文介绍了一种评估农林业与用于烹饪的薪材供应及其机会成本相关的方法。在 1993-94 年至 2011-12 年期间，印度农村和城市用于烹饪的薪材消费份额分别从 78% 降至 67% 和 30% 至 14%。然而，由于人口增长，同期薪材的总消费量从 1.06 亿吨大幅增加至 1.3 亿吨（Mt）。薪材和木片正逐渐被液化石油气（LPG）替代，许多采用液化石油气的家庭也继续使用薪材。结果证实，2011-12 年期间，用于烹饪的最大数量的薪材来自农林业系统 (64%)，其次是森林 (24%) 和公共财产资源 (12%)。每年农林业通过薪材产生的总热量估计为 1297.4 PJ，价值 40.53 亿美元。大约 103 公吨的干粪饼需要燃烧才能产生相同数量的能量。据估计，通过用农林业系统产生的薪材代替粪饼，每年可节省 11.166 亿美元，将粪饼用作农家肥。在另一种情况下，如果从农林业系统中获得的薪材所产生的全部能源都被 LPG 替代，则将需要超过 1.964 亿个额外的国内 LPG 连接，这将在国家层面产生约 364.875 亿美元的年度支出2011-12。大约 103 公吨的干粪饼需要燃烧才能产生相同数量的能量。据估计，通过用农林业系统产生的薪材代替粪饼，每年可节省 11.166 亿美元，将粪饼用作农家肥。在另一种情况下，如果从农林业系统获得的薪材所产生的全部能源都被液化石油气取代，则需要超过 1.964 亿个额外的国内液化石油气连接，这将在国家层面产生约 364.875 亿美元的年度支出2011-12。大约 103 公吨的干粪饼需要燃烧才能产生相同数量的能量。据估计，通过用农林业系统产生的薪材代替粪饼，每年可节省 11.166 亿美元，将粪饼用作农家肥。在另一种情况下，如果从农林业系统获得的薪材所产生的全部能源都被液化石油气取代，则需要超过 1.964 亿个额外的国内液化石油气连接，这将在国家层面产生约 364.875 亿美元的年度支出2011-12。