摘要
对阴山北麓荒漠草原地区的土壤水分的时序变化进行了3年的连续观测,通过对观测数据的统计和拟合,对土壤水分的月际和日际变化特征进行了分析,建立了土壤水分日际消耗模型.结果表明：月际土壤水分受蒸散的影响,最大值并未出现在降雨量集中的6~9月,而是出现在4月和10月;10 cm和30 cm土壤含水量从最大值19%和14%到萎蔫系数分别需要16 d和19 d.
Temporal changes in soil moisture in desert region of Yin Shan north area have been observed for three years consecutively,statistics have been made through the observation data,combined and built the model,and have analyzed the monthly and daily variation on soil moisture.The results showed that the maximum concentration of Monthly soil moisture does not appeared in June,July,August and September of which rainfall amassed,but in April and October;according to daily variation of soil moisture,daily consumption empirical model of soil moisture have been built so as to calculate the days required to reach wilting coefficient of soil moisture,thus to provide experience for the water-saving irrigation.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2011年第3期303-307,共5页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
内蒙古师范大学研究生科研创新基金项目(CXJJS09049)
关键词
土壤水分
时序特征
月际变化
日际变化
soil moisture
variation characteristics with time
monthly variation
daily variation
