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首页> 外文会议>Conference on Humanitarian Technology: Science, Systems and Global Impact >Organic carbon stock and their dynamics in rehabilitation ecosystem areas of post open coal mining at tropical region
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Organic carbon stock and their dynamics in rehabilitation ecosystem areas of post open coal mining at tropical region

机译：热带地区后开放式煤矿勘探生态系统地区有机碳储备及其动力学

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Exploitation of open coal mining in tropical forest ecosystem is drastically leading to land degradation and damages. Rehabilitation of extremely degraded areas through re-vegetation by fast growing species is expected to speedily recover their dynamic of organic-carbon stocks.The purposes of the study were to compare carbon stock in the aboveground biomass, understorey, litters, and soil organic under land use changes areas of open coal mining areas. The study was conducted in the coal mine concession area of PT. Berau Coal, at Site Binungan in Berau, East Kalimantan, Indonesia from September 2013 to October 2014. Data were collected from 10 plots representing ecosystem dynamics of coal mining land, consisting of: secondary forest, degraded forest; non-active mining pits; backfilling post-mining; re-vegetation forest by 2 years-old Johar (Senna siamea) stand; 1, 3 and 7 years-old Sengon (Paraserianthes falcataria); mixed forest 7 years-old Sengon (Paraserianthes falcataria) and 3 years-old meranti (Shorea sp.), and mixed forest of 9 years-old mangium (Acacia mangium) and 2.6 years-old Shorea sp. Allometric method was used to calculate the aboveground biomass and their carbon stocks. Destructive method was used to obtain the biomass of understorey, litters, and soil organic carbon. The re-vegetation programs with fast growing species after 9 year rehabilitation at post-open-mining land in tropical areas were able to restore aboveground biomass at two-thirds of previous secondary forest ecosystem. Understorey biomass in the 1-9 years-old of fast growing species were ranges at 0.19-0.95 Mg C.ha~(-1). Carbon stocks in the litter of 7-years-old sengon re-vegetation area were higher than that of natural forest, because of their supply from litterfall and understorey. Soil organic carbon in re-vegetation areas of 9-years-old Acacia mangium stand was 23.2 Mg.ha~(-1), almost equal to the value at the former secondary forest (28.5 Mg.ha~(-1)), whereas its value during land clearing just only 4.3 Mg.ha~(-1). Environmental restoration in open coal mining areas through re-vegetation by fast growing plantation will restore their biomass and carbon stocks, nearly similar to their former secondary forest conditions.
机译：热带森林生态系统开放煤炭开采的开采急剧导致土地退化和损害赔偿。预计通过快速生长物种重新植被重新植被的恢复速度将迅速恢复其对有机碳股的动态。该研究的目的是比较地上生物质，下层生物量，下层，窝水和土壤有机物的碳储量使用开放式煤矿区的变化区域。该研究是在PT的煤矿特许区进行的。 Berau煤炭于2013年9月至2014年9月至10月的印度尼西亚BiNungan的BiNungan。从10月到10月的数据来自代表煤矿土地的生态系统动态，包括：二级森林，退化森林;非活跃的采矿坑;回填后挖掘;重新植被森林2岁的约翰（Senna Siamea）立场; 1,3和7岁的Sengon（Paraserianthes falcataria）;混合森林7岁的Sengon（Paraserianthes Falcataria）和3岁的Meranti（Shorea Sp。），9岁的曼尼伊（acacia mangium）和2.6岁的Shorea sp。使用各种方法计算地上生物质及其碳储量。破坏性方法用于获得人物，窝和土壤有机碳的生物质。在热带地区开放式土地后9年康复后，具有快速生长物种的重新植被计划能够恢复前期二级森林生态系统的三分之二的地上生物量。在1-9岁的快速生长物种中，下层生物质在0.19-0.95mg C.ha〜（-1）的范围内。 7岁的Sengon重新植被区域的垃圾股较高于天然森林，因为他们的落下和人物的供应。在9岁的Acacia Mangium Stack的重新植被区域中的土壤有机碳是23.2毫克〜（-1），几乎等于前次林（28.5 mg.ha〜（-1））的价值，而它在陆地上仅仅只有4.3 mg.ha〜（-1）。通过快速增长的种植园重新植被在开放式煤矿区环境恢复将恢复其生物质和碳股，几乎类似于其前次林条件。

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