MihrayXIRYAZDAN,mütHALIK,ZulpiyaMAMAT,et al.Relationship Between the Major Ion Composition and the Salinity of Selected Soil Along the Oasis Shelter Forests in Xinjiang[J].Northern Horticulture,2019,43(04):117-123.[doi:10.11937/bfyy.20181985]
新疆绿洲防护林土壤盐分与离子含量关系
- Title:
- Relationship Between the Major Ion Composition and the Salinity of Selected Soil Along the Oasis Shelter Forests in Xinjiang
- Keywords:
- oasis city; peri-urban protection forest; afforestation types; soil salinity; principal component analysis
- 文献标志码:
- A
- 摘要:
- 选取新疆阿克苏市柯柯牙城郊防护林5种造林类型,包括红枣林Ziziphus jujuba、香梨林Pyrus sinkiangensis、苹果林Malus pumila、杨树林Populus alba var.pyramidals、新疆杨+胡杨+沙枣混交林,以周边裸露沙地为对照,测定不同造林类型下土壤的总盐分含量、pH、可溶性盐分离子等特征,并对其进行相关性及主成分分析。结果表明:与裸地相比,不同造林类型林地表现出一定的压碱抑盐效应,其中混交林地压碱抑盐效果好于其它造林类型林地,而红枣林与香梨林地的则较差;不同造林类型林地土壤中,各盐分离子含量变化总体表现为Cl->Ca2+>SO2-4>Mg2+>K++Na+>HCO-3,土壤中的总盐分含量与Cl-、Ca2+、Mg2+的存在有显著的正相关关系,主成分分析结果表明Mg2+、Cl-、SO2-4是研究区盐渍化状况的特征因子;新疆杨+胡杨+沙枣为主的混交林改良土壤即降低盐分的效果最好,因此,在营建城郊防护林过程中建议多考虑种植乡土混交林树种。
- Abstract:
- This study selected five main afforestation types (apple,jujube,pear,poplar,mixed plantation) in Kokyar peri-urban shelterbelts around the oasis city Aksu,in the meantime,one control site from near bare land was selected.The main soil variables (total salt content,pH,soluble salt ions and other variable) were measured from each site,and made correlation and principal component analysis among them.The results showed that,compared with bare land,different vegetation types had obvious function of controlling soil salinity and alkaline content,the effect of controlling soil salinity and alkaline content of mixed forests were better than thoseof shrub of jujube and pear were poor;the overall changes of the salt ions content in different types of afforestation was Cl->Ca2+>SO2-4>Mg2+>K++Na+>HCO-3;there was a significant positive correlation between total salt content with Mg2+,Cl-,Ca2+,Mg2+,SO2-4 and Cl- were the leading factor for salinization in the study area;mixed plantation was the best way to reduce salinity.Therefore,it was suggested to give mixed native tree species priority in the future peri-urban afforestation practices.
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备注/Memo
第一作者简介:美合日阿依?希尔亚孜旦(1993-),女,硕士研究生,研究方向为植物生态学。E-mail:mihray0917@163.com.责任作者:玉米提?哈力克(1966-),男,博士,教授,博士生导师,现主要从事城市规划与植物生态学等研究工作。E-mail:halik@xju.edu.cn.基金项目:国家自然科学基金资助项目(31770750,U1703102)。收稿日期:2018-08-01