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首页> 外文期刊>Catena: An Interdisciplinary Journal of Soil Science Hydrology-Geomorphology Focusing on Geoecology and Landscape Evolution >Development of Technosol properties and recovery of carbon stock after 16 years of revegetation on coal mine degraded lands, India
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Development of Technosol properties and recovery of carbon stock after 16 years of revegetation on coal mine degraded lands, India

机译：煤矿煤矿退化土地煤矿后16年后煤炭特性及碳储存的发展

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摘要

Surface mining is recognized as one of the essential anthropogenic activities which drastically disturbs the ecosystem. To offset the impacts of surface mining, revegetation is widely used to restore the disturbed landscape. The present field study was carried out to assess the status of an ecosystem structure, soil quality and C pool of the 16-years old revegetated post-mining site and compared to an undisturbed forest site. For this, physicochemical, biological and hydrological properties of Technosols were analyzed, and differences in these parameters were quantified. Vertical distribution of soil nutrients (NPK), soil organic carbon (SOC) and soil inorganic carbon (SIC) were assessed in the upper 100 cm (at an interval of 20 cm) of Technosols and forest soils. After 16-years of revegetation, autochthonous tree species comprise 17% of the total tree population on the reclaimed site. Technosol quality was increased in terms of accumulation of SOC, available nitrogen (N), and available phosphorus (P). SOC and total N stock recovered in Technosols were 70% and 47% of the reference forest soils, respectively. Likewise, after 16-years of revegetation, ecosystem C pool was 33% of the undisturbed forest site. Increase in C pool can be attributed to the development of plant biomass C, accretion of SOC and litter C pool. The study provides an insight into the magnitude of nutrient content and development of ecosystem C pool in a reconstructed ecosystem and importance of revegetation of post-mining sites to offset CO2 emission. The study concluded that plantation of multipurpose tree (MPT) species will improves Technosol quality, facilitates natural colonization of native tree species and increases ecosystem C pool along the age of revegetation.
机译：表面挖掘被认为是彻底扰乱生态系统的基本人为活动之一。为了抵消表面挖掘的影响，重新植被广泛用于恢复受扰动的景观。进行了本田间研究，以评估16岁的森林矿地矿床的生态系统结构，土壤质量和C池的地位，并与未受干扰的森林现场相比。为此，分析了术的物理化学，生物学和水文特性，量化了这些参数的差异。在高于100厘米（以20厘米）的技术醇和森林土壤中，评估土壤营养素（NPK），土壤有机碳（SOC）和土壤无机碳（SiC）的垂直分布。经过16年的再训练后，自身的树木物种包括再生网站上的17％的树木人口。在SoC，可用氮气（N）和可用磷（P）的积累方面增加了Technosol品质。 Soc和Techosols中的N总量分别为70％和47％的参考森林土壤。同样，经过16年的再训练，生态系统C池是未受干扰的森林现场的33％。 C池中的增加可归因于植物生物质C的开发，SoC和垃圾C池的增强。该研究介绍了在重建的生态系统中的生态系统C池的营养含量和发展的大小见深度，以及将挖掘部位的再培育场所的重新定义为抵消二氧化碳排放的重要性。该研究得出结论，多用途树（MPT）物种的种植园将提高Technosol Quality，促进天然树种的自然定植，并增加了沿着植物时代的生态系统C池。

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