Louisiana officials want to start building sand berms as barrier islands, to block oil from entering the fragile marsh ecosystems;

路易斯安那州官员希望开始建造作为屏障的沙堤来阻止石油侵入脆弱的沼泽生态系统；

youdao

In Louisiana, temporary sand berms are being built to protect barrier islands.

在路易斯安那州，人们已经用沙袋搭建起临时堤坝，来保护沿岸的岛屿。

youdao

The sand ground temperature is higher obviously than clay straw barrier ground and the leaf surface of natural desert plants under the same conditions of sunlight, time and the area.

在同一地区约同一时间相同的日照下，沙面温度明显高于粘土、麦草沙障表面和沙生植物叶面温度。

youdao

President Obama announced Thursday that the federal government was approving a small part of a plan by state and local officials in Louisiana to spray sand on gulf barrier islands to build them up as a defense against incoming oil.

WSJ: Gauging Harm to Ecosystem Could Take Years

Harvey Cedars, a narrow spit of sand in the northern part of the barrier Long Beach Island, has been battling with oceanfront homeowners for years over permission to construct protective sand dunes.

WSJ: Dunes vs. property rights in storm-battered NJ

Habitats in the biosphere reserve comprise barrier islands, beach and sand dunes, salt marshes, maritime forests, tidal creeks, fresh and brackish water impoundments and open water areas.

UNESCO: Biosphere Reserve Information