期刊论文

中文

土壤通报

0564-3945

2010

41

3

633-638

10.19336/j.cnki.trtb.2010.03.025

2006AA10Z419:国家高技术研究发展计划（863计划） 2008BADA7B02:国家科技支撑计划

本校为第一机构

通过对湖南省10个丘岗茶园土壤的调查取样与室内分析,研究了亚热带丘岗茶园土壤的酸化现状及其对土壤肥力的影响. 结果表明:在所调查的10个茶园中,仅1个茶园的土壤处于茶树生长的适宜pH值范围,3个茶园土壤的pH值在4.5以下,平均低于4.0,土壤酸化十分严重;随着土壤pH值的下降,交换性酸和交换性Al~(3+)含量增加,土壤pH值和交换性酸及交换性Al~(3+)之间表现为极显著的负相关关系;土壤酸化导致土壤全磷、全钾、全钙和缓效钾等含量降低,土壤供应氮、磷、钾的能力下降

Through the survey and sampling of 10 tea garden soils in hillock of Hunan Province, the tea garden soils acidification current status and its impact on soil fertility were researched. The results showed as follows： （1） Among 10 tea gardens, only one tea garden soil pH value was suitable for tea growth, and three tea garden soils pH values were below 4.5, with averages below 4.0. Soil acidification was very serious. （2） The contents of exchangeable acid and exchangeable Al3＋ increased with the decline of soil pH value, and there were sign...