Three green ecological barriers took shape in the city zone, the plain area and the mountain belt.

市区、平原地区、山区三道绿色生态屏障初具规模。

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The paper studies the problems in the work of prevention and supervising of soil and water conservation in the plain area.

笔者针对在平原区开展水土保持预防监督工作存在的各种问题展开讨论。

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Generally fruit fall rate was lower in the plain area and by the 16 years old trees than in the hill slope land and by the 6 years old trees.

但调查显示，不同树龄，不同地段果实受害率不同，总体上平地比坡地、16龄树比6龄树受害较轻。

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Established in 1997 to promote peace and conserve the DMZ's biodiversity, last year it embarked on a project to encourage North Korean farmers of the Anbyon plain to preserve the area so red-crowned cranes can return.

CNN: Beyond the barbed wire: the accidental paradise of the DMZ

Most of Nepal's national parks and protected areas are either in the Himalayan region or in the Tarai area, the southern plain land that border India.

BBC: Attacks prompt Nepal to cap wildlife growth

The lawsuit refers to the so-called 100-year flood plain, which maps the area that could be affected by the type of flooding that statistically can be expected to happen once in a century.

MSN: Hotel company accuses government of negligence