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Position: Home > Articles > Effects of Different Land Uses on Water and Soil Erosion in the Upper Area of Fen River Journal of Soil and Water Conservation 2019,33 (4) 44-51

汾河上游不同土地利用方式对坡地水土流失的影响

作  者:
杜轶;郭青霞;郭汉清;张勇;白秀梅
单  位:
山西农业大学林学院;山西省水土保持科学研究所;山西农业大学资源环境学院
关键词:
土地利用;次降雨;径流;泥沙
摘  要:
以汾河上游阳坡小流域为研究区,在2015—2017年进行了天然降雨条件下的坡面产流产沙小区试验,结果表明:(1)研究区的侵蚀性降雨在年内和年际间分布很不均匀.少数几次强降雨对降雨侵蚀力的贡献很大.(2)不同侵蚀性降雨条件下,鱼鳞坑+乔木或灌木拦蓄径流或泥沙能力最强,裸地最弱;坡面产流量大小依次为:裸地>坡耕地>草地>油松>黄刺玫>鱼鳞坑+油松>鱼鳞坑+黄刺玫.坡面产沙量大小规律为:鱼鳞坑+乔或灌<草地<乔或灌<坡耕地<裸地.(3)随着雨量增加,各植被小区的径流调控率和泥沙调控率均呈下降趋势;相近雨量时,随着雨强的增加,径流调控率和泥沙调控率明显下降.(4)各小区的降雨量和产流量、产流量和产沙量之间呈现显著正相关(P<0.05).在裸地、黄刺玫及草地小区,I30与产流量之间是均无显著相关.在裸地、油松、黄刺玫、耕地小区,I 30和产沙量之间无显著相关.
译  名:
Effects of Different Land Uses on Water and Soil Erosion in the Upper Area of Fen River
作  者:
DU Yi;GUO Qingxia;GUO Hanqing;ZHANG Yong;BAI Xiumei;College of Resource and Environment,Shanxi Agricultural University;College of Forestry,Shanxi Agricultural University;Shanxi Institute of Soil and Water Conservation;
关键词:
land use;;single rainfall;;runoff;;sediment
摘  要:
Based on field observations of runoff and sediments of water and soil erosion under different land u ses generated on runoff plots and rainfall data from 2015 to 2017,we studied quantitatively the effects in upper area of Fen River.The results showed that:(1)The distribution of erosion rainfall in the study area was very uneven within a year and between years.Several times of heavy rainfall contributed a lot to the erosion of rainfall.(2)Under different rainfall conditions,the runoff or sediment holding capacity of the fish-scale pit+trees or shrubs was the strongest,while the bare land was the weakest.The runoff yield on slope was as follows:bare land>slope farmland>grassland>Pinus tabuliformis Carrière>Rosa xanthina Lindl.>fish-scale pit and Pinus tabuliformis Carrière>fish-scale pit and Rosa xanthina Lindl..The slope sediment yield was:fish-scale pit and trees or shrubs

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