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Hydrologic impact of fire on the Croppers Creek paired catchment experiment

机译：火灾对Croppers Creek配对流域实验的水文影响

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摘要

The Croppers Creek paired catchment project was established in 1975 to examine the hydrologic effects of conversion of native eucalypt forest to pine plantation. In 1980, Clem Creek catchment was converted to radiata pine. In 2006, following prolonged severe drought, all catchments were burnt by wildfire. The pine plantation was killed and the eucalypt forests were scorched. These recovered by producing epicormic shoots. Flows from the eucalypt forest catchments were zero before the fire; small outflows post-fire may possibly be attributed to a cessation of transpiration. The diurnal variation in flow from the pine catchment ceased on burning, indicating a cessation of transpiration. The outflow from this burnt catchment was similar to the pre-burn catchment, despite the death of the pines. In all catchments there was a generation of occasional, high "spike" flows as a distinct fire effect. Vegetation and transpiration capacity appears to have recovered by one year. After three years, fire effects were no longer detectable. The data, together with satellite image analysis, suggested that the impact of the drought on the hydrology was severe and inseparable from the fire effects.
机译：克罗珀斯克里克（Croppers Creek）配对流域项目成立于1975年，目的是研究将原生桉木森林转化为松树人工林的水文影响。 1980年，克莱姆克里克（Clem Creek）流域改建为辐射松。 2006年，长期持续的严重干旱之后，所有集水区都被野火烧毁。松树种植园被杀死，桉树林被烧焦。这些通过产生表皮层的芽而恢复。火灾前，桉树林流域的流量为零；火灾后少量流出可能是由于蒸腾作用的停止。松树流域的流量昼夜变化在燃烧时停止，表明蒸腾停止。尽管松树死亡，但从烧毁的集水区流出的水与烧前的集水区相似。在所有流域中，都有不定期的高“尖峰”流量产生，这是一种独特的射击效果。植被和蒸腾能力似乎已经恢复了一年。三年后，火势不再可见。数据以及卫星图像分析表明，干旱对水文的影响是严重的，与火势密不可分。

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