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Spatial distribution of phytomass carbon in Indian forests

机译：印度森林中植物碳素的空间分布

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A spatial analysis of phytomass carbon (C) in Indian forests for the period (1988-94) at the district-level is reported. District-level forest phytomass C (1988,1994) was computed by combining remote sensing-based forest area inventories on 1:250 000 scale, field inventories of growing stock volume by the Forest Survey of India (FSI), and crown density-based biomass expansion factors. The estimates of forest area inventory, forest phytomass C density, and forest phytomass C pools (1988-94) were linked to the district boundary coverage of India in ARC/INFO Geographic Information System (GIS). Of the total 386 districts examined, only 17 districts had more than 75% forest cover (as percent of their geographic area) in 1988. Estimated district-level forest phytomass C densities ranged from 4.3 to 206.8 MgC ha(-1)*. At the national level, forest phytomass C pool was estimated to be 3871.2 and 3874.3 TgC# in 1988 and 1994, respectively. Although the aggregated national estimates were similar, the district-level change analysis indicated a decrease of 77.8 TgC and an increase of 81 TgC (1988-94). The highest decrease of 10.4 TgC was observed in Vishakapatnam district (Andhra Pradesh) while largest increase of 9.8 TgC in Bastar district (Madhya Pradesh) resulting from deforestation and afforestation activities, respectively. At the national level, the total forest cover decreased by similar to0.6 Mha, however, the district-level spatial analysis indicated an increase of 1.07 Mha, and decrease of 1.65 Mha forest cover during 1988-94 period. Although, this is the first district level phytomass C analysis of Indian forests, the aggregated results at state-level were close to the earlier estimates. The spatial analysis identified the districts that have undergone significant changes in their forest phytomass C during the study period. This improved understanding of forest phytomass C pools is important to sustainable development and conservation of forests, mitigation strategies for C sequestration, and accurate estimation of contribution of land use changes to C emission in India. [References: 41]
机译：据报道，在区域一级（1988-94年）期间，印度森林的植物碳（C）的空间分析。通过将基于遥感的1：250 000规模的森林面积清单，印度森林调查局（FSI）的种群增长实地清单和基于树冠密度的清单相结合，来计算区级森林phytomass C（1988,1994）。生物质膨胀因子。在ARC / INFO地理信息系统（GIS）中，森林面积清单，森林植物C密度和森林植物C池的估计值与印度的区域边界范围相关。在1988年检查的386个地区中，只有17个地区的森林覆盖率超过了75％（占其地理区域的百分比）。估计的地区级森林植物C密度范围为4.3至206.8 MgC ha（-1）*。在国家一级，1988年和1994年森林植物气态碳库估计分别为3871.2 TgC＃和3874.3 TgC＃。尽管全国的总估算值是相似的，但地区级变化分析表明，降低了77.8 TgC，增加了81 TgC（1988-94年）。在维沙卡帕特南地区（安得拉邦）观察到最高的10.4 TgC降低，而在Bastar区（中央邦）的9.8 TgC的最大增加分别是由于森林砍伐和造林活动。在国家一级，森林总覆盖量减少了约0.6 Mha，但是，地区级的空间分析表明，在1988-94年期间，森林覆盖量增加了1.07 Mha，减少了1.65 Mha。尽管这是首次对印度森林进行区级植物碳C分析，但州级的合计结果与之前的估计相近。空间分析确定了在研究期间其森林植物C发生了显着变化的地区。对森林植物碳库的这种更好的了解对于印度的可持续发展和森林保护，减缓碳封存的战略以及准确估算土地用途变化对碳排放的贡献至关重要。 [参考：41]

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