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首页> 外文会议>International Conference on Wetlands amp; Remediation Salt Lake City, Utah, November 16-17, 1999 >Spartina pectinata: a candidate species for constructed treatment wetlands
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Spartina pectinata: a candidate species for constructed treatment wetlands

机译：Spartina pectinata：人工处理湿地的候选物种

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摘要

Spartina pectinata, prairle cordgrass, is one of several inland fresh water cordgrasses and is native and widespread in North America. This aquatic macrophyte species, which has the characteristics of a potentially useful species for growth in constructed treatment wetlands, was examined in a titanium (III) citrate buffer to measure oxygen release for the root systems in an anaerobic substrate. In addition, pilot wetlands were investigated under greenhouse conditions to determine the nitrogen removal performance of S. pectinata. Typha latifolia, common cattail, was used as a reference species. The higher amount of oxygen release under the experimental conditions by cordgrass on a per unit area basis, approximately 0.6 g/m~2/day, as compared to cattail, approximately 0.04 g/m~2/day demonstrated that this species has the ability to aerate the anaerobic substrate. Also, the higher nitrogen removal rate of the wetland planted with cordgrass, 9.16 g/m~2/day, as compared to that planted with cattail, 4.39 g/m~2/day, suggests that prairie cordgrass has excellent potential for use in constructed treatment wetlands.
机译：Spartina pectinata是原产于北美洲的数种内陆淡水脐带草之一。在柠檬酸钛（III）缓冲液中检查了这种水生植物物种，该物种具有可能在人工处理的湿地中生长的潜在有用物种的特征，以测量厌氧基质中根系的氧释放量。此外，在温室条件下对试验湿地进行了研究，以确定果胶链球菌的脱氮性能。香蒲，普通香蒲，被用作参考物种。在实验条件下，草皮在单位面积上释放的氧气量更高，约为0.6 g / m〜2 /天，而香蒲则约为0.04 g / m〜2 /天，这表明该物种具有给厌氧底物充气。另外，与香蒲种植的湿地相比，香草种植的湿地脱氮率更高，为9.16 g / m〜2 /天，这表明草原香草具有极好的应用潜力。人工处理湿地。

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