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在滨海沙滩营造木麻黄防护林，林带老化后进行更新，部分林地改种潮州柑或芒果而成为果园，并于其间套种农作物或牧卓；结果表明，人为耕作活动对土壤的热化起到了明显的促进作用．在造林种果的同时，大量肥料的施入及优质客土改良了土壤，使＞１．０ｍｍ的砂粒比例明显减少，＜０．０１ｍｍ的粉粘粒及土壤养分含量明显增加，其中沙草地、防护林及果园，０—４０ｃｍ土壤粉粘粒含量分别为５６．４ｇ／ｋｇ、５９．６ｇ／ｋｇ和１０８．９ｇ／ｋｇ，土壤有机质为０．７１ｇ／ｋｇ、２．０２ｇ／ｋｇ和４．１１ｇ／ｋｇ；土壤氮素含量随有机质提高而提高，柑园速效磷和钾含量是沙草地的３７倍和３．５倍，然而防护林的种植对土壤速效磷和钾的影响却不明显；由于雨水淋洗，土壤盐分减少；又由于酸性化学肥料的大量施入，土壤ｐＨ值由８．３下降为５．３．果园的营建，明显改善了土壤的肥力状况及其保水保肥性能，提高了沙滩地的利用价值及生态经济效益．
The Casuarina equisetifolia shelterbelt was established on the sandy beaches of the coastal area. After the forest belts were aged, the forest belts were renewed. Some of the forest lands were converted into Chaozhou oranges or mangos and became orchards, interplanting crops or pastoral crops. The results showed that anthropogenic tillage activities played an obvious role in soil heating. enhancement. At the same time of afforestation and planting of fruit, a large amount of fertilizers were applied and the soil of high-quality soil was improved so that the proportion of sand> 1.0mm was obviously reduced. The content of <0.01mm clay and soil nutrients increased obviously, Shelterbelts and orchards, the contents of soil clay in 0-40cm soil were 56.4g / kg, 59.6g / kg and 108.9g / kg, soil organic matter 0.71g / kg, 2.02g / kg and 4.11g / Kg; soil nitrogen content increased with the increase of organic matter, available phosphorus and potassium content in citrus orchard was 37 times and 3.5 times that of sandy grassland, however, the effect of shelterbelts on soil available phosphorus and potassium was insignificant; Leaching, reducing soil salinity; and because of the large amount of acidic chemical fertilizers applied, soil pH decreased from 8.3 to 5.3. Orchard construction, significantly improved soil fertility conditions and water and fertilizer performance, improve the utilization of the value of the beach and ecological and economic benefits.