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深圳湾红树林保护区土壤营养状况研究 预览 被引量:3

Study on the nutritional status of mangrove forest soils in Shenzhen Bay
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摘要 2009年11月至2011年10月期间每月对深圳湾红树林保护区6个采样点进行土壤样本采集,并对土壤的理化性质和营养元素含量进行测定,结果发现:土壤含水量高,存在一定的季节性变化;土壤pH值在6.5-7.5之间;土壤电导率高,含盐丰富;土壤粉粒含量所占比例最大;有机质含量极其丰富,各样点差异较大;各采样点速效氮含量在100mg/kg左右;有效磷含量在30mg/kg左右;速效钾含量在750mg/kg左右,比农田土壤丰富得多;说明流经市区的两条河流将丰富的营养物质带人深圳湾。在2011年年初,监测到的各项营养元素的含量骤然降低,与深圳筹备26届世界大学生运动会期间环境治理密切相关,而在2011年年底各项指标出现反弹。 Mangrove forest Soil samples in 6 points were tested monthly on Shenzhen Bay, for soil physical, chemical properties and nutrient elements contents from Nov. 2009 to Oct. 2011. The results showed that soil water contents was abundant and undulated seasonally. Soil pH was between 6.5 to 7.5, a potential acid sulfate soils; soil eonductivities were high and rich of salts; silt contents accounted for the largest proportion in soil texture; organic matter contents were extremely rich, and distributed uneven; Soil ammonia and nitrate nitrogen contents together valued about 100 mg/kg; soil available phosphorus contents were about 30mg/kg and available potassium contents were about 750 mg/kg; are fertile soils compared to ordinary agricultural soils. Soil nutrient contents in each sampling point were decreased significantly in early 2011 and rebounded in the end of 2011, because environment administer were taken place seriously during Shenzhen Universiade.
作者 李存焕 王庆 张文静 余皓 王博 史秀华 LI Cun-huan, WANG qing, ZHANG Wen-jing, YU Hao, WANG Bo, SHI Xiu-hua (Golf College, Shenzhen University, Shenzhen 518060, China)
出处 《广东农业科学》 CAS CSCD 北大核心 2013年第13期53-56,90共5页 Guangdong Agricultural Sciences
基金 国家林业局948项目(2008-4-38) 国家高技术研究发展计划项目(2006AA102236)
关键词 深圳湾 红树林 土壤 营养元素 Shenzhen Bay mangroves forest soil nutrient elements
作者简介 作者简介:李存焕(1964-),男,博士,副研究员,E-mail:golflee0727@126.com 通讯作者:史秀华(1959-),女,博士,教授,E—mail:shxh100@163.com
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