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广东海岸长达7,800公里,有320多万亩滨海沙地,占全省林地面积约1.5%,是一片巨大的土地资源。解放后,在沙滩上营造了一道道的海岸防护林带,对于防风固沙、扩大耕地、保障农业稳产高产,提供用材和燃料,都起到显著作用。木麻黄是沿海防护林的主要树种,但经过二、三代纯林更新之后,出现生长衰退、病虫害严重等不良现象;并有一些沙地不适应木麻黄的生长,造
The coast of Guangdong is 7,800 kilometers long and has more than 3.2 million mu of coastal sandy land, accounting for about 1.5% of the total forest area in the whole province. It is a huge land resource. After the liberation, a series of coastal shelterbelts were set up on the beach, playing a significant role in windbreak and sand fixation, expanding cultivated land, ensuring stable and high-yield agriculture, providing timber and fuel. Casuarina is the main species of coastal shelterbelt, but after the second and third generation of pure forest renewal, the growth recession, serious pests and diseases and other undesirable phenomena; and some sandy land does not meet the growth of Casuarina, making