土壤学报2012，Vol.49Issue(5)：886-891,6.
塔里木沙漠公路防护林咸水灌溉土壤盐渍化状况研究
SOIL SALINIZATION OF THE WINDBREAK FOREST BELTS IRRIGATED WITH SALINE WATER ALONGSIDE THE TARIM DESERT HIGHWAY
摘要
Abstract
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 +> Ca + in content and anions one of Cl- >C02-3 >S02-4~ > HCO-3. 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 salinization in the forest belts and is then followed by mineralization, pH and water table of the ground water.关键词
塔里木沙漠公路/防护林/咸水灌溉/土壤盐渍化Key words
Tarim Desert Highway/ Windbreak forest belts/ Saline water irrigation/ Soil salinization引用本文复制引用
王永东,李生宇,徐新文,雷加强,金小军,闫健,王强,邸鲲,彭慧清..塔里木沙漠公路防护林咸水灌溉土壤盐渍化状况研究[J].土壤学报,2012,49(5):886-891,6.基金项目
国家自然科学基金重点项目(41030530)、国家自然科学基金青年项目(40701098)和中国科学院"西部之光博士专项"项目(XBBS200908,XBBS200904)共同资助 （41030530）
