煤炭开采对沙蒿根系生长的影响及其自修复能力

Effect of Coal Mining on Root Growth of Artemisia Sphaerocephala and its Self-repairing Ability

为保护神东矿区生态环境,以补连塔矿区野生沙蒿为研究对象,通过CI-600植物根系生长监测系统对沙蒿的根系进行观测,分析煤炭开采对不同规格沙蒿根系生长的影响以及沙蒿根系的自修复能力。结果表明:煤炭开采会影响沙蒿根系的生长,开采初期,大、中、小3种不同规格沙蒿的根系各项指标都处于降低状态;4个月后,采煤塌陷地已趋于稳定,沙蒿根系也恢复生长状态;1年后,沙蒿根系生长可不受煤炭开采的影响。以上3种规格的沙蒿根系都具有自修复能力,其恢复速度从大到小依次为中沙蒿、小沙蒿、大沙蒿。

In order to protect ecological environment in Shendong Mining Area, taking wild artemisia sphaerocephala in Bulianta Mining Ar- ea as an example, the paper analyzed the effects of coal mining on the roots growth of different specifications artemisia sphaerocephala and its self-repairing ability by CI-600 plant roots monitoring system.The results showed that coal mining would affect the roots growth of arte- misia sphaerocephala.During initial coal mining period, roots growth indicators of three kinds of different specifications artemisia sphaero- cephala were in a reduced stage.After four months ,when the coal mining subsidence area had tend to stable ,the roots growth of artemisia sphaerocephala started to resume.After one year, the effect of coal mining on roots growth of artemisia sphaerocephala disappeared.The roots of three kinds of different specifications artemisia sphaeroeephala all had self-repairing ability, the recovery speed of moderate artemisia sphaerocephala from large to small was medium, small, big artemisia sphaerocephala.