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首页> 外文期刊>Journal of Arboriculture >Effect of basement sump pump effluent on the growth and physiology of urban black ash and green ash ornamental trees.
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Effect of basement sump pump effluent on the growth and physiology of urban black ash and green ash ornamental trees.

机译：地下污水泵出水对城市黑灰和绿灰观赏树木生长和生理的影响。

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摘要

The effect of basement sump pump effluent discharge in proximity to boulevards and ornamental trees was studied at several sites near Edmonton, Alberta, Canada throughout the summer of 1996. The growth, leaf petiole water potentials, and gas exchange of black ash (Fraxinus nigra) and green ash (F. pennsylvanica) trees were measured at sites with and without nearby sump pump effluent discharge. Black ash trees had higher mortality, altered water relations, and significantly lower caliper increase atthe site with sump pump effluent discharge compared to trees at the site without effluent discharge. Green ash trees situated away from sump pump effluent discharge had significantly greater caliper increase than trees situated near effluent discharge.Furthermore, salt injury symptoms were observed on both species of trees located at sites with nearby effluent discharge. Our results demonstrate the importance of monitoring sump pump effluent discharge and its effects on boulevard ornamental trees in areas where soils are poorly drained or contain high levels of salts. It is recommended that basement sump pump effluent discharge hoses should be positioned away from boulevards and ornamental trees.
机译：整个1996年夏季，在加拿大艾伯塔省埃德蒙顿附近的几个地点研究了林荫大道和观赏树木附近的地下集水泵污水排放的影响。黑灰（Fraxinus nigra）的生长，叶柄水势和气体交换在有和没有附近的污水泵污水排放的地方，对绿树和绿灰（F. pennsylvanica）树进行了测量。与没有污水排放场所的树木相比，在有污水泵排放场所的地方，黑灰树具有更高的死亡率，改变的水关系和显着更低的厚度增加。远离污水泵污水排放处的绿灰树比来自污水排放处附近的树具有更大的厚度增加;此外，在附近污水排放处的两种树种都观察到了盐害症状。我们的结果表明，在土壤排水不畅或盐分含量较高的地区，监测污水泵废水排放的重要性及其对林荫大道观赏树木的影响。建议将地下污水泵的污水排放软管放置在远离林荫大道和观赏树木的位置。

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