摘要
通过设置典型样地,对闽东滨海湿地不同起源秋茄林重金属元素Zn、Cd、Cu的吸收、累积与分布特征进行测定、分析和对比.结果表明:秋茄天然林植株Zn、Cd、Cu的平均含量分别为(19.21±0.039)、(1.30±0.111)和(30.07±0.042)mg.kg-1,依次是人工林的1.28、1.16、0.60倍;天然林表层(0-30 cm)土壤Zn、Cd、Cu的平均富集系数分别为0.767、0.339和1.464,依次是人工林的4.62、1.45、1.30倍;秋茄天然林Zn、Cd、Cu的现存累积量分别为304.33、21.78和396.86 mg.m-2,依次是人工林的4.78、2.06、1.58倍;而Zn、Cd、Cu在人工林林地土壤中的平均储量分别为9682.44、489.61和5287.46 mg.m-2,依次是天然林的1.10、1.18、1.54倍.
Distribution and accumulation of Zn, Cd and Cu in Kandelia candel mangrove community of Fuding were investigated between the natural forest and the monoculture plantations, the results showed that the average contents of the respective elements of natural/C candel plant were （ 19.21 ± 0.039 ） mg·kg^-1 of Zn, （ 1.30 ± 0.111 ） mg ·kg^-1 of Col and （ 30.07 ± 0.042 ） mg ·kg^-1 of Cu, which were 1.28 times, 1.16 times and 0.60 times as much as that in the monoculture plantations. The enrichment coefficient of plant to soil （0 -30 cm depth） were 0.767, 0. 339 and 1.464 respectively, which were 4.62 times, 1.45 times and 1.30 times as much as that of monoculture plantations. The storages of the natural forest were 304.33 mg·m^-2 of Zn, 21.78 mg·m^-2 of Cd and 396.86 mg·m^-2 of Cu, which were 4.78 times, 2.06 times and 1.58 times as much as that of monoculture plantations. The average d the respective element reserves of the monoculture plantations were 9682.44 mg·m^-2 of Zn, 489.61 mg·m^-2 of Cd and 5287.46 mg·m^-2 of Cu, which were 1.10 times, 1.18 times and 1.54 times as much as that in the natural forest.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2012年第2期187-192,共6页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
福建省科技厅重点资助项目(2009N0009)
教育部博士学科点专项基金项目(20103515110005)
福建省林业厅资助项目(闽林科(2006函7号)
福建省教育厅资助项目(JA07064)
关键词
秋茄
天然林
人工林
Zn、Cd、Cu重金属元素
闽东湿地
Kandelia candel
natural forest
plantations
heavy metals （Zn, Cd, Cu）
wetland in Eastern Fujian Province
