|
|
Preliminary studies on effects of restored mangroves on coastal soils |
CAO Zhi-mian1, YE Yong1,2, LU Chang-yi1,2, ZHENG Feng-zhong1,2 |
1. Environmental Science Research Center, Xiamen University, Xiamen 361005, China; 2. Key Lab. for Marine Environmental Science of Ministry of Education, Xiamen University, Xiamen 361005, China |
|
|
Abstract Effects of mangroves restored in different years on physical and chemical properties of coastal soils were studied. Results showed that the effects on deep soils(20-25cm)were more significant than surface soils(0-5cm). Eh values of 20-25cm soils under mangrove forests were higher than those of barren soils. Restored mangroves strongly assimilated nutrients from soils to accelerate their growth. The contents of NH4+-N were higher than those of NO2--N and NO3--N and NH4+-N was the main inorganic nitrogen assimilated by mangroves. Although its contents were nearly the same as the inorganic nitrogen, PO43--P was assimilated little. As mangroves grew, pH values at depth of 20-25cm decreased significantly and soil acidification was strengthened. There was no significant difference in SO42- contents among the surface soils but at depth of 20-25cm, the contents of the soils under mangrove forests was higher than those of barren soils.
|
Received: 25 April 2004
|
|
|
|
|
[1] 杨忠兰.2002.福建省红树林资源现状分析与保护对策[J].华东森林经理,16(4):1-4.
[2] 林益明,林鹏.1999.福建红树林资源的现状与保护[J].生态经济,3:16-19.
[3] 中国科学院南京土壤研究所.1978.土壤理化分析[M].上海:上海科学技术出版社.62-236.
[4] 杨萍如,何金海,刘腾辉.1987.红树林及其土壤[J].自然资源学报,2(1):32-37.
[5] Russell E W.1979.土壤条件与植物生长[M].北京:科学出版社.407-408.
[6] 张银龙,林鹏.1998.九龙江河口秋茄林及白骨壤红树林土壤特性研究[J].河南农业大学学报,4(32):325-330.
[7] 蓝福生,李瑞堂,陈平,等.1994.广西海滩红树林与土壤的关系[J].广西植物,14(1):54-59.
[8] 龚子同,张效朴.1994.中国的红树林与酸性硫酸盐土[J].土壤学报,31(1):86-94.
[9] 林鹏.1997.中国红树林生态系[M].北京:科学出版社.25-26. |
[1] |
. [J]. Ecological Science, 2019, 38(6): 1-. |
|
|
|
|