文献类型：期刊文献

中文题名：人工无瓣海桑林的土壤动态研究

英文题名：The Soil Dynamic Study of Restored Sonneratia apetala Plantations

作者：韩维栋[1];凌大炯[1];李燕[1];吴小凤[1]

机构：[1]湛江海洋大学农学院,广东湛江524088

年份：2003

卷号：27

期号：2

起止页码：49

中文期刊名：南京林业大学学报（自然科学版）

外文期刊名：Journal of Nanjing Forestry University：Natural Sciences Edition

收录：CSTPCD、、北大核心2000、CSCD2011_2012、北大核心、CSCD

基金：中国荷兰红树林综合管理和沿海保护"资助项目

语种：中文

中文关键词：无瓣海桑;红树林;酸性硫酸盐土;生态恢复;雷州地区

外文关键词：Sonneratia apetala;Mangrove;Acid sulphate soil;Ecological restoration;Leizhou

中文摘要：以造林前立地情况基本一致为条件,选取雷州附城镇潮间带人工恢复的无瓣海桑红树林林地(分别于2000年、1997年和1995年造林)的3个代表性样地,对处于不同生态恢复阶段林地的土壤特性进行实验分析,结果表明该人工红树林生态恢复过程对生境中的土壤理化性质有显著影响,主要表现为随着红树林生态恢复的进展,土壤pH迅速降低,机械组成中粘粒比重、有机质含量、风干土壤含水量、可溶性SO2-4和全铁含量趋于增加,6年生林林地土壤具有红树林酸性硫酸盐土的基本特征,说明其成土过程为一快速过程。

外文摘要：The exotic Sonneratia apetala in Leizhou Peninsula has shown an outstanding fastgrowing ability in restored mangrove forests at the middle and high tide intertidal zone with yearround fresh water input from drainage.With condition of similarity of the environments before planting,three S.apetala plantation plotsplanted in 2000,1997,1995,respectivelyin Fuchen,Leizhou were selected for the mangrove restoration changes analyses on soil characteristics with a research goal to understand the mangrove restoration's ecological process in soil.A total of 9 soil samples were collected in the field in April 2001.Test items included pH(Vsoil∶Vwater=2.5∶1,using electrical pH detector),wind dried soil's water content(weight loss method,burning the samples in a burner at 105 ℃ for 5 h),physical partical component(Gravimeter test method),organic content(FeSO4 titration method),total salt contentAgNO3 titration method,total N(K2Cr2O7H2SO4 digestive method),total P(HClO4H2SO4 digestive and mixed indicator colorcomparison method),total Fe(Atom flamelight aborbing test method,using Detector SHIMADZUAA6 800),and water soluble ions of CO2-3/HCO-3Double indicators titration methodand of Ca2+,Mg2+ and SO2-4EDTA volume titration method.The results showed that the soil physical and chemical characteristics changed obviously along with the restoration progress,indicated by:decrease of pH,with the highest yearly decrease amount of 0.43 at the depth 20~40 cm;decrease of total P,especially with a decrease from 0.35 g/kg to 0.21 g/kg at the depth 20~40 cm;decrease of HCO-3 content in each tested soil layer at the same depth,with the highest decrese of from 0.24 cmol/kg to 0.11 cmol/kg at the depth 40~60 cm;increase of glue soil particles,with the glue particle of diamenter less then 0.005 mm incresced from 3.13% to 31.31% at the depth 0~20 cm;increase of organic carbon in each tested layer of soil at the same depth,with the highest increased amount from 16.98 g/kg to 49.33 g/kg at depth 0~20 cm;increase of air dried soil water content from 44.9 g/kg to 79.6 g/kg at the depth 0~20 cm;increase of total salt from 5.74 g/kg to 7.89 g/kg in the top soil;increase of total Fe,with an obvious change from 13.02 g/kg to 18.30 g/kg in the top soil;increase of SO2-4 from 1.49 cmol/kg to 4.64 cmol/kg in the top soil;and complex changes of soluble ions Ca+,Mg2+,Cl- contents also tending to increase,but these ion content changes were highly related to development of the mangrove and its environmental factors.The 6 aged forest soil showed the basically similar characteristics of mangrove acid sulphate soil.The changes of soil characteristics of S.apetala plantations in defferent restoration stages uncovered that the mangrove restoration was accompanying with a quick formation process of the acid sulphate soil during their early 1~6 year period of restoration process.