李瑜琴,赵景波.西安地区丰水年有林地土壤水分恢复效应研究[J].干旱地区农业研究,2009,27(3):101~106
西安地区丰水年有林地土壤水分恢复效应研究
Restoration effect of soil moisture content under woodlands in Xi’an region in wet year
  
DOI：10.7606/j.issn.1000-7601.2009.03.19
中文关键词:  土壤含水量  丰水年  水分恢复效应  西安地区
英文关键词:soil moisture content  wet year  restoration effect of soil moisture  Xi’an region
基金项目:国家自然科学基金项目(40672108)
作者单位
李瑜琴 College of Tourism and Environment Science Shaanxi Normal University, Xi’an 710062, China 
赵景波 College of Tourism and Environment Science Shaanxi Normal University, Xi’an 710062, China；State Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment CAS, Xi’an 710075, China 
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中文摘要:
      通过对西安南郊平水年与丰水年秋季有林地土壤含水量的测定,研究了地下0~6 m之间土壤含水量的变化与土壤水分恢复问题。研究结果表明,正常年西安地区人工林2~4 m土壤含水量为9%~10%,发育了明显的土壤干层,表明土壤干层在黄土高原分布具有普遍性;丰水年西安南郊人工林下2~4 m的土壤含水量在18%~24%之间,高出正常年份这一层位含水量的8%~14%,土壤干层已经消失;丰水年4~6 m的土壤含水量也明显升高。分析得出,在降水丰富的年份,土壤水分得到恢复,而且恢复的深度可达5 m,恢复的速度也较快。
英文摘要:
      Through determination of soil moisture under artificial forest in the southern suburb of Xi'an in normal year and wet year, change and restoration of soil moisture underground from 0～6 m are studied.The results show that soil moisture content underground between 2～4 m under artificial forest is from 9% to 10% in Xi'an region in normal year and soil moisture is low.However, in wet year soil moisture underground between 2～4 m is from 18% to 24%, and is 8% higher than that of normal year.The soil moisture content underground from 4～6 m goes up obviously in wet year.From analysis it is also found that, in wet year, the soil moisture can not only be restored but also the restoration depth can reach 5 m and the speed is also very quick.
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