山东省盐渍土林业开发利用前期研究——土壤盐基组成及其对植物危害分析  

Earlier Stage Study of Forest Exploition and Utilization on Salinized Soil in Shandong Province——Analysis of Soil Salt Composition and Salt Harmfulness to Plants

作　　者：尹建道[1,2] 龚洪柱 生原喜久雄 郗金标 李秀芬 刘德玺 

机构地区：[1]山东农业大学 [2]山东省林业科学研究所 [3]日本东京农工大学农学部

出　　处：《东北林业大学学报》1998年第1期29-33,共5页Journal of Northeast Forestry University

基　　金：中日合作研究项目;山东省科委资助

摘　　要：为了扩大森林资源，加快盐碱土改良和造林绿化步伐，探明盐渍土壤中的盐基组成及其危害因素是十分必要的。对山东省内陆与滨海两大盐渍土区分别进行采样分析，结果表明：与对照（农田）相比，盐渍土的土壤电导度过大（比内陆区大３０～１３４倍，比滨海区大２２～３５倍），土壤钠含量过多（比内陆区多６８～２６６倍，比滨海区多２８～６３倍），而且绝大部分（６４５％～９１４％）以代换性和水溶性Ｎａ＋状态存在；同时内陆盐渍土的盐基Ｍｇ２＋、滨海盐渍土的盐基Ｋ＋也显著高于对照地，这是产生土壤盐害的主要原因。内陆区盐分上重下轻，滨海区盐分下层较重，在土壤综合改良利用实践中，应针对不同地区盐渍土的发生、形成及其剖面分布特点采取相应措施。In order to expand the forest resources, quicken the pace of afforestation and reforming salinized soil, it is necessary to study the composition of salinized soil and the harmful factors Analysis of the samples about the island area and coatal area was made The electric conduction is bigger than that of contrast (inland area: 3 0～13 4 times; coastal area: 2 2～3 5 times), and the content of sodium in soil is greater than that of contrast (inland area: 6 8～26 6 times, coastal area: 2 8～6 3 times) The majority (64 5%～91 4%) of the sodium is existing in the form of EX Na + and water soluble Na + Meanwhile, the content of soil salt Mg 2+ in salinized soil at inland area and the content of soil salt K + in salinized soil at coastal area is obvious higher than that of contrast This is the main reason to salt calamity At inland area, the salt content in upper layer is greater than that in lower layer, and that of the coastal area is in the contrary situation In practice, improvement measure should be chosen according to the character of the salinized soil′s formation and the distribution of cross-section

关 键 词：盐渍土 土壤盐基组成 林业开发利用 植物危害 

分 类 号：S714.2[农业科学—林学]