摘要
探讨了福建九龙江口桐花树红树林对ＣＵ、Ｐｈ、Ｚｎ、Ｃｄ、Ｍｎ元素的吸收、累积及分布．结果表明：该林地土壤５种元素的储量关系为Ｍｎ＞Ｚｎ＞Ｐｈ＞ＣＵ≥Ｃｄ；植物体不同部位，各元素含量有着明显的差异，含量范围分别为Ｃｈ１．５１～５．７０、Ｐｂ１．３０～１０．７０、Ｚｎ１８．０～１００．１、Ｃｄ０．０４～０．２３和Ｍｎ１５．５～２３７．５（ｗ／１０－６）；植物对土壤元素的富集系数大小依次为Ｃｄ＞Ｚｎ＞Ｍｎ＞Ｃｕ＞Ｐｈ；群落现存生物量中，ＣＵ、Ｐｂ、Ｚｎ、Ｃｄ、Ｍｎ元素的现存累积量分别为１６．５６、６３．３０、４４５．０５、１．１４和１６５６．９３（ρＡ／ｍｇ·ｍ－２）．其中，地下部分别占７０．２％、８１．８％、７６．２％、７２．２％和８２．１％；林地残留物相应元素的储量分别为２１１．１１、１８４．００、１９４１．６９、６．１９和２２２４８．３１（ρＡ／μｇ·ｍ－２）．
Aborption,accurnulation and dsribtit on of Cu, Pb, Zn , Cd and Mn elements in Aegiceras corniculatum mangrove forest in the estuary of the Jiulong River in Fujian were studied and the results showed that the storages of those elements in the soil of the forest were Mn > Zn > Pb > Cu ≥ Cd ; the element contents in different plant perts were quite different, the ranges of the contents were Cu 1. 51 ￣5. 70, Pb 1. 30￣ 10. 70,Zn 18. 0￣ 100. 1,Cd 0. 04 ￣ 0. 23 and Mn 15. 5￣ 237. 5(w/ 10-5 ),and their storages in the standing crops of the community were 46. 56 for Cu, 63. 30 for Pb, 445. 05 for Zn, 1. 14 for Cd and 1 656. 93 for Mn ((),of which the underground pert accounted for 70. 2%, 81. 8%, 76. 2%, 72. 2% and 82. 1 %, respectively ; the accumulation ratio of the elements in plants to those in soil was Cd>Zn>Mn>CU >Pb; the storages of elements in the litter on forest floor were Cu 211. 11, Pb 184. 00 , Zn 1941. 69,Cd 6. 19 and Mn 22 248. 3 1 ( ), respectively.
出处
《应用与环境生物学报》
CAS
CSCD
1996年第3期207-213,共7页
Chinese Journal of Applied and Environmental Biology
基金
国家自然科学基金
关键词
桐花树
红树林
重金属
吸收
累积
mangrove
Aegiceras corniculatum
heavy medal
absorption and accumulation
