摘要
利用1970-2004年实测长系列资料分析了朝阳地区降水量和春播期土壤墒情之间的相关关系,结果表明:封冻期(10-11月)降水量与春播期土壤墒情间具有极显著相关关系。因此提出:应该调整人工增雨的思路,通过开展封冻期人工增雨改善朝阳地区春播期的土壤墒情,提高人工增雨的效益和作用。
Based on the observation data in Chaoyang City from 1970 to 2004, the relationship between the precipitation and soil moisture content in the spring sowing time was analyzed. The results showed that the raiinfall during soil freezing period （from October to November） had extremely conspicuous mutual relations with the soil moisture content in the spring sowing time. It was suggested that the artificial rainfall should be developed in the period of soil freezing to improve the soil moisture content of the spring sowing in Chaoyang district and to raise the effect and benefit of artificial rainfall.
出处
《中国农业气象》
CSCD
2005年第3期194-196,共3页
Chinese Journal of Agrometeorology
关键词
人工增雨
春播
墒情分析
朝阳地区
Artificial rainfall
Spring sowing
Soil moisture content analysis
Chaoyang District
