中文摘要：

为了研究塔里木沙漠公路防护林建林后土壤在咸水灌溉条件下的盐渍化状态，本文通过对塔里木沙漠公路防护林建林后沿线土壤盐分分布状况的监测，结合防护林建林前土壤盐分状况普查资料，运用统计分析、相关性分析及灰色关联分析，对防护林沿线的40个监测点的土壤盐离子、土壤盐渍化的现状及驱动力作了初步研究。研究结果表明：塔里木沙漠公路防护林建成后，土壤盐分各离子含量均较建成前有了显著增加，其中，阳离子含量Na＋＋K＋〉Mg^2＋〉Ca^2＋，阴离子含量C1-〉CO32-〉SO42-〉HCO3-；防护林沿线土壤盐渍化类型以氯化物型与硫酸盐一氯化物型为主，分别占到监测点的84．2％与15．8％；有近81．6％的监测点已达到中度盐渍化程度；灰色关联分析结果表明，引起塔里木沙漠公路防护林土壤盐渍化的主要驱动力依次是灌溉年限、地下水矿化度，地下水pH和地下水埋深。

英文摘要：

Soil salinization is one of the primary environmental problems, which affects sustainable development of the windbreak forest belts alongside the Tarim Desert Highway. In order to study soil salinization caused by irrigation with saline water of the windbreak forest belts along the Highway since their establishment, distribution of soil salts under the forest belts was investigated. By utilizing the data collected during the soil salt survey before the establishment of the forest belts, the methods of statistical analysis, correlation analysis and grey relational analysis were adopted in the primary study of soil salt ions, status quo of soil salinization and its driving force in the 40 monitoring posts distributed alongside the highway. Results show that after the establishment of the windbreak forest belts, the contents of various salt ions increased significantly in the soil, with cations showing a decreasing order of Na＋＋K＋〉Mg^2＋〉Ca^2＋ in content and anions one of C1- 〉 CO23- 〉 SO24- 〉 HCO2-. Soil salinization in the forest belts was dominated by Chloride and Sulfate-chloride, which accounted for 84.2% and 15.8% , respectively, of the monitoring posts. About 81.6% of the monitoring posts reported moderate soil salinization. The grey relational analysis reveals that irrigation history is the major driving force of soil salin- ization in the forest belts and is then followed by mineralization, pH and water table of the ground water.