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1981年省科委下达海岸滩涂资源综合开发利用任务,选定响水县头砧堤防管理所至套子口长1000米堤段,进行海堤防护林造林技术研究。该堤南北走向,东、西坡宽各6米,面积18亩。因常年受两面海水侵袭,土壤含盐量比较高,西坡土壤含盐量达0.3—0.5％,东坡土壤含盐量高达1—2％。植被品种稀少,除散生少量芦苇、獐毛草、盐蒿等外,大都为光板地。1980年前曾栽过几次树,由于土壤盐份重,都没有成活。几年来,我们采取挖坑、淋盐换烂草土、植草种绿肥压盐、“盐下树上”的方法,取得了初步效果,为沿海重盐地防护林营造,提供了科学依据。
1981 provincial science and Technology Commission issued a comprehensive coastal beach resources development and utilization of tasks, selected Xiangshu head anvil embankment dredging management to 1000 meters long embankment embankment, seawall shelterbelts afforestation technology research. The dike south to the east, west slope width of 6 meters, an area of 18 acres. Due to perennial affected by two seawater, soil salt content is relatively high, the soil salt content in the west slope reaches 0.3-0.5%, and the soil salt content in the east slope reaches 1-2%. Vegetation species sparse, in addition to scattered a small amount of reeds, Burr grass, salt Artemisia, etc., mostly for light board. Several trees were planted before 1980 and did not survive due to heavy salt soils. In recent years, we have taken the method of digging holes, leaching salt for rotten soil, planting green manure and pressing salt, and “getting on trees under salt”. The preliminary results have been obtained, which provides a scientific basis for the construction of coastal heavy salt shelterbelt.