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土壤盐渍化是影响区域生态环境稳定性以及制约农业生产发展的重要因素。以新疆典型盐渍化土壤—渭-库绿洲为研究靶区,采用传统统计学方法,利用研究区7次不同采样时间和空间的土壤含盐量、pH及盐基离子等野外调查数据,对研究区土壤酸碱度、盐渍化类型及程度进行了分级。结果表明:渭-库绿洲盐分有强烈表聚性,春季土壤含盐量大于秋季土壤含盐量,研究区盐渍化情况较严重,土壤含盐量往加重的方向发展;研究区土壤属于微碱性土,春季土壤碱化强于秋季;各层土壤盐渍化类型主要以氯化物-硫酸盐型盐渍土和硫酸盐渍土为主,土壤中的氯化物在土壤剖面中呈自上而下减少的趋势,而硫化物呈自上而下增多的趋势。
Soil salinization is an important factor affecting the stability of the regional ecological environment and restricting the development of agricultural production. Taking Xinjiang typical salinized soil-Wei-library oasis as the research target, the traditional statistical methods were used to analyze the soil salinity, pH and base-salt field data of seven different sampling time and space in the study area. The soil pH, salinization type and degree in the study area were graded. The results showed that the salt content in Wei-Libraries oasis was strongly aggregated. The soil salt content in spring was greater than the soil salt content in autumn. The salinization of the study area was more serious and the salinity of the soil was aggravating. The soil in the study area was slightly In alkaline soil, soil alkalinization was stronger in spring than in autumn. The main types of soil salinization were chloride-sulphate-type saline soil and sulfate-type saline soil. Chloride in the soil was However, the tendency of the decrease is decreasing while that of sulfide is increasing from the top to the bottom.