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木麻黄(Gasuarina eqnisetipolia L.)耐盐碱,抗风沙,是营造沿海防护林的理想树种。一九七五年以来,苍南县宜山区白沙公社在沿海堤塘上营造了木麻黄防护林带12609米,65940株,初步显示出防风抗沙,固堤保田的效能。一九八二年五月,由于人为破坏,使该公社七河大队312米的防护林带毁于一旦。翌年,被伐的防护林陆续长出萌条,与同等立地条件下营造的实生林相比,高、径生长量均占明显优势。为此,我们于一九八四年初进行了调查。
Casuarina (Gasuarina eqnisetipolia L.) Saline resistance, wind sand, is ideal for creating coastal shelterbelt species. Since 1975, Baisha Commune in Yingshan District of Cangnan County has built 12,609 meters and 65,940 trees of Casuarina equisetifolia shelterbelts on the coastal dikes and has initially shown the effectiveness of windbreak and sand resistance and solid embankment protection. In May 1982, a 312 meter-wide shelter belt of the Commune’s Seven Rivers unit was destroyed as a result of human destruction. In the following year, the deforested shelterbelt grew one after another. Compared with the planted forest under the same site conditions, the height and diameter of the shelter belts occupied obvious advantages. To this end, we conducted a survey in early 1984.