红树林宜林滩涂土壤理化性质及造林修复适宜性分析——以北海市红树林为例  

Analysis of Soil Physical and Chemical Properties and Adaptability of Mangrove Afforestation and Restoration in the Tidal Flats:Taking Mangroves in Beihai City as An Example

作　　者：耿婉璐 张秋丰 于硕 管卫兵 邢永泽 GENGWanlu;ZHANG Qiufeng;YU Shuo;GUAN Weibing;XING Yongze(Key Laboratory of Tropical Marine Ecosystem and Bioresource,Fourth Institute of Oceanography,Ministry of Natural Resources,Beihai 536015,Guangxi Zhuang Autonomous Region,P.R.China;College of Marine Ecology and Environment,Shanghai Ocean University,Shanghai 201306,P.R.China)

机构地区：[1]自然资源部热带海洋生态系统与生物资源重点实验室,自然资源部第四海洋研究所,广西北海536015 [2]上海海洋大学海洋生态与环境学院,上海201306

出　　处：《湿地科学》2023年第6期907-917,共11页Wetland Science

基　　金：国家自然科学基金项目(42141016);自然资源部第四海洋研究所基本科研业务费专项资金资助项目(202005);北海市科技计划项目(202082034和201995076)资助。

摘　　要：在北海市周边的红树林宜林滩涂采集土壤样品,通过测定土壤理化性质,研究不同土壤条件下红树林造林修复的适宜性。研究结果表明,各造林地块土壤粒径的垂直分布规律较为一致,以砂和粉砂为主,含量大小依次为砂、粉砂、黏土和细砾;随着土壤深度的增加,不同地块土壤各理化性质指标总体上呈逐渐降低趋势,土壤有机质质量比为5.83~17.68 g/kg,处于中等养分水平;土壤全氮、全磷和全钾含量都较低,在五级到六级养分水平;土壤碱解氮、有效磷和速效钾含量都较高,满足造林所需营养条件。对红树植物生长特性的综合分析结果表明,黄金村和镇西村滨海滩涂仅适宜种植白骨壤(Avicennia marina),那潭村和那江村滨海滩涂适宜种植秋茄(Kandelia obovate)和红海榄(Rhizophora stylosa),和荣村、广西壮族自治区合浦儒艮国家级自然保护区和上新村滨海滩涂适宜种植白骨壤、秋茄和红海榄。Soil samples were collected from the tidal flats suitable for mangroves in Beihai,and the adaptability of mangrove afforestation and restoration under different soil conditions was studied by measuring soil physicochemical properties.The results showed that the vertical distribution of soil particle size in each afforestation plot was consistent,mainly sand and silt,and the content was sand,silt,clay,fine gravel in order.With the increase of soil depth,the physical and chemical properties of soils in different plots generally showed a decreasing trend.The soil organic matter contents varied from 5.83 g/kg to 17.68 g/kg,which was at a medium level.The contents of total nitrogen,total phosphorus and total potassium in soils were relatively low,at levels 5 to 6.However,the contents of available nitrogen content,available phosphorus and available potassium were relatively high,which met the nutritional conditions required for afforestation.The results of comprehensive analysis of the growth characteristics of mangrove plants showed that,the flats in Huangjin Village and Zhenxi Village were only suitable for planting Avicennia marina,the flats in Natan Village and Najiang Village were suitable for planting Kandelia obovate and Rhizophora stylosa,and the flats in Herong Village,Hepu Dugong National Nature Reserve and Shangxin Village were suitable for planting Avicennia marina,Kandelia obovata and Rhizophora stylosa.

关 键 词：红树林 造林修复 土壤理化性质 光滩 

分 类 号：X14[环境科学与工程—环境科学]