[1]李娟,韩霁昌,张扬,等.蓄排水条件下盐碱地土壤盐分运移特征研究[J].水土保持研究,2015,22(03):116-120.
　LI Juan,HAN Jichang,ZHANG Yang,et al.Move Characteristics of Soil Salinity in Saline-Alkali Land Under Impounding and Draining Conditions[J].Research of Soil and Water Conservation,2015,22(03):116-120.
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蓄排水条件下盐碱地土壤盐分运移特征研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年03期 页码: 116-120 栏目: 出版日期: 2015-06-28
Title:
Move Characteristics of Soil Salinity in Saline-Alkali Land Under Impounding and Draining Conditions
作者:
李娟1,2,3, 韩霁昌1,3, 张扬1,3, 李晓明1, 张卫华1,3, 董起广1,3, 雷娜1,3
1. 陕西省土地工程建设集团有限责任公司, 西安 710075;
2. 西北农林科技大学 林学院, 陕西 杨凌 712100;
3. 国土资源部退化及未利用土地整治工程重点实验室, 西安 710075
Author(s):
LI Juan1,2,3, HAN Jichang1,3, ZHANG Yang1,3, LI Xiaoming1, ZHANG Weihua1,3, Dong Qiguang1,3, LEI Na1,3
1. Shaanxi Province Land Engineering Construction Group, Xi’an 710075, China;
2. College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources of China, Xi’an 710075, China
关键词:
盐碱地; 蓄水; 排水; 土壤盐分; 盐分离子
Keywords:
saline-alkali land; storage condition; drainage saline land; soil salinity; salt ions
分类号:
S275.6
摘要:
为检验蓄水和排水处理下盐碱地土壤盐分的变化情况及盐分运移规律，于2009年在陕西富平设置试验模型，分析在两种处理下0—160 cm土层土壤中盐分的变化趋势。结果表明：蓄水处理下0—160 cm土层的平均土壤湿度较排水处理高，能有效提高土壤中含水量，满足作物生长需求。分析了土壤中可溶性固形物（TDS）、阴离子（Cl-，HCO3-，SO42-）、阳离子（Ca2+，Na+，K+）含量的剖面分布及土壤pH值变化，并且利用主成分分析法分析了土壤盐分与各离子间关系，得出蓄水处理有效降低土壤表层的盐分，加速土壤耕作层脱盐，土壤质量明显改善，即蓄水处理下盐碱地治理效果显著。
Abstract:
To test the variation and move of soil salinity in saline-alkali land under impounding and draining treatments, an experimental model was conducted in Fuping County, Shaanxi Province, 2009. The variation of soil salinity in 0—160 cm soil depth under the two treatments was observed. Results showed that the average soil water content under impounding treatment was 4.47% higher than that under draining treatment with the same water yield, which means that the impounding treatment can help improve soil moisture to support the crop growth. The profile distributions of soil soluble solids (TDS), anion (Cl-, HCO3-, SO42-) and cation (Ca2+, Na+, K+) contents and the variation of soil pH were also measured. Principal component analysis(PCA) was used to examine the relationship between the soil salinity and its ions. The results showed that the impounding treatment could significantly decrease the surface salinity of soil and accelerate the desalination of topsoil, and finally, the soil quality was improved significantly, demonstrating that the impounding treatment had the remarkable effect on soil salinity management.

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备注/Memo

收稿日期:2014-07-16;改回日期:2014-08-09。
基金项目:国家科技支撑计划“山地丘陵区空心村整治关键技术集成示范”（2014BAL01B03）
作者简介:李娟(1986-),女,陕西宝鸡人,博士生,研究方向为旱区农业生态研究。E-mail:lijuan8136@163.com
通讯作者:韩霁昌(1966-),男,陕西渭南人,研究员,主要从事土地整治工程技术研究。E-mail:kele502514@163.com

更新日期/Last Update: 1900-01-01