n.森林防護帶

The shelter forest in the region looks like a ribbon. 這一帶的防護林呈帶狀分布。

The circumlittoral shelter forest system is divided into two stages. 山東沿海防護林體系建設(shè)主要目標分為兩個階段。

Study on the Techniques of Plot Remaking Casuarina equisetifolia Shelter Forest and Planting Dimoarpus longane Lour. 木麻黃防護林塊狀改造種植龍眼的技術(shù)。

In 1995, China and Germany also launched a joint "project of ecological shelter forest at the eastern foot of Mt.Helan. 1995年，中德兩個國家又開始合作實施“賀蘭山東麓生態(tài)防護林工程”項目。

From 1997 to 2006, with the implementation of the pasture fence project and construction of shelter forest, the grassland ecology resumed and improved low grass was instead by high grass in most area. 1997-2006年，草地實行圍欄工程并建設(shè)人工防護林，草地生態(tài)恢復(fù)，大部分低草轉(zhuǎn)化為高草，低草處于最大的“落勢”，高草處于最大的“漲勢”。