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中国农学通报 ›› 2015, Vol. 31 ›› Issue (17): 174-179.doi: 10.11924/j.issn.1000-6850.casb15010179

所属专题: 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

旱塬区不同地带耕地土壤水分动态变化研究

胡明   

  1. 渭南师范学院化学与生命科学学院
  • 收稿日期:2015-01-24 修回日期:2015-02-11 接受日期:2015-02-25 出版日期:2015-07-27 发布日期:2015-07-27
  • 通讯作者: 胡明
  • 基金资助:
    陕西省多河流湿地生态环境重点实验室开放基金项目“黄河湿地农业面源污染现状研究”(SXSD1402);陕西省教育厅项目“洽川湿地重金属污染的风险预警分析”(14JK1253);渭南师范学院“特色学科建设项目”(2014TSXK004)。

Study on Soil Water Dynamic Change of Cultivated Land in Different Areas

  • Received:2015-01-24 Revised:2015-02-11 Accepted:2015-02-25 Online:2015-07-27 Published:2015-07-27

摘要: 为探明土壤水分在不同地带的变化特征,于2011年10、11月和2012年2—5月采集渭南塬耕地以及渭河边附近耕地的土壤样本进行了土壤水分含量的测定分析。研究结果表明:由于降水和地下水位等因素的影响,渭河附近耕地含水量大于塬上耕地,渭河附近耕地含水量变化大于塬上耕地。2011年10、11月和2012年2月由于受冬季气候的影响,土壤含水量较高,而2012年3、4和5月受春旱的影响,土壤含水量数值偏低。

关键词: 大肠杆菌, 大肠杆菌, 分离, 鉴定, 药敏试验

Abstract: In order to verify variable features of soil water in different regions, soil samples were collected from Weinan plateau land and farmland near Weihe in October and November of 2011 and February March, April and May of 2012, and the water content of soil was measured. The result showed that, because of the influence of precipitation and groundwater level, the water content of farmland near Weihe was higher than that of Weinan plateau land. The change of soil water content at farmland near Weihe was greater than that of Weinan plateau land. In October, November and February, as a result of the effects of winter climate, the figure of soil water content was relatively high. While in March, April and May, affected by drought, the figure of soil water content was generally low.