摘要
以汾河上游不同土地利用方式的坡地为研究对象,对2013年（5-10月）年内降雨、产流和产沙进行了分析研究。结果表明：阳坡小流域2013年降雨年内分布和汛期降雨量明显异于多年平均降雨量;不同土地利用方式下,坡地产流量和产沙量差异较为明显。人工构建的植被小区（1~6号）产流产沙量显著低于坡耕地（7~8号）和裸坡面小区（10号）;增加地表覆盖有助于减轻水土流失;少数几次较大雨强降雨对产流产沙影响较大。
The Characteristics of Runoff and Sediment in the different land use were studied in the Upper Fen River. The results showed that the precipitation distribution in 2013 （5-10） is different from the average rainfall. There is obvious difference about the amount of sediment and runoff in different land use in different plots. The amount of sediment and runoff in vegetable plots （No. 1-6） man-made is less than the other plots, such as slope land plots （No. 7 and 8） and the bare slope plot （No. 10）. Returning farmland into forest and grass is helpful to decrease loss of soil and water. The results still showed that several times of precipitations with bigger rainfall intensity have greater contributions to the amount of runoff and sediment. Increasing coverage is conducive to control the amount of runoff and sedi- ment.
出处
《山西农业大学学报（自然科学版）》
CAS
2014年第4期365-369,共5页
Journal of Shanxi Agricultural University(Natural Science Edition)
基金
山西省水利科学技术项目(晋水财务[2013]303)
关键词
汾河上游
土地利用
降雨
径流
泥沙
Fenhe upriver
Land use
Precipitation
Runoff
Sediment
