Position: Home > Articles > Spatio-temporal Variation and Migration Mechanism of Soil Salinity in Chanan Irrigation Area of Ili
Transactions of the Chinese Society for Agricultural Machinery
2017
(12)
221-228
伊犁察南灌区土壤盐分时空变异特征与运移机理研究
作 者：
刘迁迁;苏里坦;刘广明;沙吾兰·哈斯木;张音
关键词：
伊犁察南灌区;盐分运移;时空变异;电导率;缓冲区
摘 要：
以伊犁河谷察南灌区为研究区,运用磁感式电导率快速获取技术及室内分析相结合手段,通过构建盐分解译模型,获取2015年及2016年秋季0~30 cm、30~60 cm、60~100 cm土壤盐分含量。对土壤各土层进行了盐渍化分级统计和半方差函数分析及空间插值分析。对研究区高程信息进行提取,并通过调查河流影响范围对河流进行缓冲区分析。旨在构建适用于研究区及同类型灌区磁感式盐渍土地快速精量诊断评估与利用规划技术体系,了解干旱、半干旱区灌溉农田土盐时空变异特征,并对土盐时空运移机理进行研究。初步研究表明,相比于2015年秋季,2016年秋季研究区非盐化土面积显著减小,中度盐化土面积显著增加,非盐化土、轻度盐化土呈现向中度盐化土演变的趋势;研究区土壤盐分呈现向中部及东部区域运移的趋势,盐化土面积增加,且盐分含量均值增大;另外,在空间大尺度范围上,河流是影响土盐运移的主要影响因素,在局域小尺度范围内,地势是影响土盐运移的主要影响因素。
译 名：
Spatio-temporal Variation and Migration Mechanism of Soil Salinity in Chanan Irrigation Area of Ili
作 者：
LIU Qianqian;SU Litan;LIU Guangming;Shawulan·HASIMU;ZHANG Yin;State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences;College of Resources and Environment,University of Chinese Academy of Sciences;Nanjing Institute of Soil Science,Chinese Academy of Sciences;Xinjiang Institute of Land and Resources Planning;
关键词：
Channan Irrigation Area of Ili;;salinity migration;;spatio-temporal variation;;electrolytic conductivity;;buffer
摘 要：
Chanan Irrigation Area of Ili was selected as the study area. Through the combination of electromagnetic fast soil electrolytic conductivity acquisition technology with laboratory analysis,and using the construction of soil salinity interpretation model to get soil salinity content of 0 ~ 30 cm,30 ~ 60 cm and 60 ~ 100 cm soil layer in the autumn of 2015 and 2016. On the one hand,simple statistical classification was conducted, and the semi-variogram analysis and spatial interpolation analysis for soil salinity characteristic factors were carried out; on the other hand,the elevation information of the study area was extracted,and the buffer area through investigating the influence of river was analyzed,which aimed at constructing suitable magnetic induction type fast precise diagnostic evaluation and utilization planning technology for the study area and the same irrigation area. Preliminary studies indicated that: firstly,from the autumn of 2015 to the autumn of 2016,non-saline soil area was significantly reduced,while moderate-saline soil area was significantly increased,there was a trend that non-saline soil and mildsaline soil were evoluted to moderate-saline soil. Secondly,soil salinity in the study area had a migration trend to central and eastern regions,with an increasing trend of salinization area and the average of salt content. Moreover,both the river and the terrain were the main influence factor of soil salt movement,while the river was the main influence factors on the large scale of space,and the terrain was the main influence factor on the small scale space.
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