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首页> 外文期刊>Journal of the American Water Resources Association >TAMARIX AND DIORHABDA LEAF BEETLE INTERACTIONS: IMPLICATIONS FOR TAMARIX WATER USE AND RIPARIAN HABITAT1
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TAMARIX AND DIORHABDA LEAF BEETLE INTERACTIONS: IMPLICATIONS FOR TAMARIX WATER USE AND RIPARIAN HABITAT1

机译：塔马里克斯和洋甲虫的叶甲相互作用：对塔马里克斯水的使用和日本人居的影响1

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Tamarix leaf beetles (Diorhabda carinulata) have been widely released on western United States rivers to control introduced shrubs in the genus Tamarix, with the goals of saving water through removal of an assumed high water-use plant, and of improving habitat value by removing a competitor of native riparian trees. We review recent studies addressing three questions: (1) to what extent are Tamarix weakened or killed by recurrent cycles of defoliation; (2) can significant water salvage be expected from defoliation; and (3) what are the effects of defoliation on riparian ecology, particularly on avian habit? Defoliation has been patchy at many sites, and shrubs at some sites recover each year even after multiple years of defoliation. Tamarix evapotranspi-ration (ET) is much lower than originally assumed in estimates of potential water savings, and are the same or lower than possible replacement plants. There is concern that the endangered southwestern willow flycatcher (Empidonax trailli extimus) will be negatively affected by defoliation because the birds build nests early in the season when Tamarix is still green, but are still on their nests during the period of summer defoliation. Affected river systems will require continued monitoring and development of adaptive management practices to maintain or enhance riparian habitat values. Multiplatform remote sensing methods are playing an essential role in monitoring defoliation and rates of ET on affected river systems.
机译：Tamarix叶甲虫（Diorhabda carinulata）已在美国西部河流中广泛释放，以控制Tamarix属中引入的灌木，其目的是通过去除假定的高耗水量植物来节水，并通过去除被污染的高耗水植物来提高栖息地价值。本地河岸树木的竞争对手。我们回顾了针对以下三个问题的最新研究：（1）落叶循环的反复循环在多大程度上削弱了Tamarix的致死力； （2）可以预期从落叶中获得大量的水； （3）落叶对河岸生态，特别是对鸟类习性有什么影响？落叶在很多地方都是零星的，即使经过多年的落叶，每年在某些地方的灌木也会恢复。柳蒸发蒸腾量（ET）远低于最初在潜在节水估算中所假设的水平，并且与可能的替代植物相同或更低。令人担忧的是，濒临灭绝的西南柳fly（Empidonax Trailli extimus）会受到脱叶的不利影响，因为鸟类在Tamarix仍为绿色的季节早些时候筑巢，但在夏季脱叶期间仍在巢中。受影响的河流系统将需要继续监测和发展适应性管理方法，以维持或提高河岸生境的价值。多平台遥感方法在监测受影响河流系统的ET的落叶和速率方面起着至关重要的作用。

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