芦苇

The limitless bulrush field which produces over 30,000 ton bulrush is a natural park on the lake.

无限芦苇场生产的三点〇万吨芦苇是一个自然公园的湖。

And further more, calculate the area of bulrush based on the changes of time-serials MODIS-NDVI. The numerical value is close to realistic value.

在此基础上，利用基于时序的芦苇植被指数变化，提取了洞庭湖芦苇的生长范围，最后与TM 和实测数据对比，结果比较一致。

At the last part, achieve the MODIS-NDVI to monitor the growth of bulrush of DongTing Lake, and infer the growing range of bulrush.

在本文最后部分，利用MODIS-NDVI 植被指数对洞庭湖的芦苇长势进行了监测，并对洞庭湖的芦苇生长范围进行了提取。

The result indicates that the changes of the MODIS-NDVI accord with the changes of bulrush in the whole year, it proves that using the MODIS-NDVI to monitoring the bulrush of DongTing Lake is possible.

实验结果表明，年际MODIS-NDVI 的变化规律和洞庭湖芦苇的生长规律非常的吻合，说明利用MODIS-NDVI 植被指数监测洞庭湖芦苇的长势是可行的。

I do not know bulrush comes from where up to now, it is one individual plant, two individual plant, or; of countless individual plant also does not know is the bird in sky the losing in the mouth, still lead a wandering life from the canalage of from a great distance so far, bulrush with epic like grand present alive person before.

我至今不知道芦苇从何处来，是一株、两株，还是无数株；也不知道是空中鸟儿嘴里的遗失，还是从千里迢迢的水路漂泊至此，芦苇以史诗般的壮观呈现在世人的面前。

The Pn of Phragmites communis is higher than that of Phalaris arundinacea L, meanwhile Phragmites communis has the higher diurnal photosynthetic capacity, which shows that the Phragmites communis could grow more rapidly, and have higher biomass, so the Phragmites communis could be one of the priority implemental plant.

芦苇的Pn比虉草的Pn高，同时芦苇较虉草有更大的日光合量，说明芦苇相比较长势更快，生物量更高，当年栽植当年见效，在湿地生态系统人工修复中可作为优选工具植物之一。

Any of several perennial reeds of the genus Phragmites in the grass family, found worldwide in marshes and wetlands and having stems up to nearly6 meters(20 feet) long.

芦苇属禾本科禾本科中的一种芦苇属多年生的芦苇，在世界各地的沼泽和湿地都有发现，有近六米（合20英尺）长的茎

The main resultsshowed that the average removal efficiency on Total Nitrogen with planted Phragmites communis and Canna indica were higher than 90% for 1 day and 3 days, but the removal efficiency with planted Scirpus validus and Acorus calamus changed from 51.90% for 1 day to 90.90% for 3 days; The removal efficiency was not significantly different from each other on Total Phosphorus except for Phragmites communis; The combination of Phragmites communis and Canna indica, Typha orientalis and Acorus calamus were good at removing COD; the removal efficiency on NH_4~+-N was the highest with planted Acorus calamus.

结果显示，芦苇和美人蕉组合对总氮的去除率在停留1天和3天时均达到90％以上，而水葱—菖蒲组合变幅较大，从停留1天的51.90％增加到停留3天的90.90％；植物对TP的去除率除了芦苇组合偏低以外，其它植物差别不明显；芦苇—美人蕉组合和香蒲—菖蒲组合对COD去除较好；菖蒲组合对NH_4~+-N去除效果最好。

Two ecotypes of reed (Phragmites communis Trin.), swamp reed and heavy salt meadow reed growing in the desert regions of Hexi Corridor are ideal materials for mechanism study on salinity-resistance/tolerance of plants.

分布于甘肃省河西走廊沙漠地区的不同生态型芦苇（水生芦苇和重度盐化草甸芦苇）是研究植物抗/耐盐机制的良好材料。

The results show that, the nitrate-N concentration in groundwater in the reed area was 0.2~0.8mg/L and significantly lower than that in surrounding wells (more than 20mg/L), and the reed wetland can remove nitrate pollution in shallow groundwater. The distribution of denitrifying bacteria showed obvious rhizosphere effect, and the higher biodenitrification in natural reed wetland was related to the distribution of denitrifying bacteria. There was a negative relationship between the nitrate-N concentration and the number of denitrifying bacteria in groundwater.

结果表明：芦苇区浅层地下水中硝酸盐氮仅为0.2~0.8mg/L，远低于湿地周围井水中硝酸盐氮质量浓度（大于20mg/L），芦苇湿地能够去除浅层地下水中硝酸盐污染；反硝化细菌在土壤中的分布呈现明显的根际效应；野生芦苇湿地较强的生物脱氮作用与反硝化细菌分布有关，地下水中硝酸盐氮含量与反硝化细菌分布呈负相关。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。