摘要
通过对杉木林地不同清理方式土壤水分动态的四年定位研究表明:炼山不炼山通过不同方式处理迹地剩余物,导致了林地水分性质的较大差异。随时间推移,这种差异在缩小,至第四年,炼山、不炼山林地的水分性质仍未趋向一致。两种清理方式林地水分呈明显季节变化。可分为三个时期:林地蓄水期(2~6月)、林地失水期(7~10月)、林地水分稳定期(11~1月),这一研究对于采取适宜措施、防止林地水土散失,提高林地的水分利用效率具有现实意义。
The moisture of Chinese fir forest land soil under different ground clearances has been studied for four years,with the result that there ares igni-ficant differences between the soil moisture of controlled burning and that of non-burning, that as time goes on the difference decreases, and that the saes-onal dynamic of soil moisture of different ground clearances is obvious, To improve the efficiency of water application, three phases of soil of different ground clearances have been designated.
出处
《福建林学院学报》
CSCD
1992年第3期296-301,共6页
Journal of Fujian College of Forestry
基金
国家七
五攻关项目<杉木人工林集约栽培技术>的组成部分之一
关键词
林地
清理方式
土壤含水量
ground clearance, moisture capacity, capacity of water supply