河流两侧坡面非对称采伐森林对流域暴雨-径流过程的影响

应用生态学报 ›› 2000, Vol. ›› Issue (2): 210-214.

河流两侧坡面非对称采伐森林对流域暴雨-径流过程的影响

陈军锋, 裴铁璠, 陶向新, 刘四旦, 牛丽华

中国科学院沈阳应用生态研究所, 沈阳110015

收稿日期:1999-07-16 修回日期:1999-10-26 出版日期:2000-03-25
通讯作者: 裴铁璠
基金资助:
中国科学院资源与生态环境研究重点项目(KZ952-S1-277)

Effect of unsymmetrical cutting along both river slopes on rainstorm-runoff process

CHEN Junfeng, PEI Tiefan, TAO Xiangxin, LIU Sidan, NIU Lihua

Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015

Received:1999-07-16 Revised:1999-10-26 Online:2000-03-25

摘要/Abstract

摘要： 通过模拟实验比较了河流两侧坡面采伐与非采伐森林对流域暴雨径流的影响,并建立了模型.结果表明,森林坡面地表径流的出流时间和峰现时间均比采伐坡面迟缓,径流历时延长,峰值流量和地表径流总量较低.坡度越大,影响越显著.当雨强 1.98mm·min^-1,降雨量108.8mm时,15°两侧森林坡面比其采伐坡面峰值流量削减5%,径流总量降低4%.

Abstract: A simulation experiment was conducted to compare the effect of cutting and no-cutting at both slopes along a river on the rainstorm run-off in catchment,and a model was constructed.The results showed that the appearance of outflow and peak flow of surface run-off was later on forest slope than on forest-cutting slope.On forest slope,the duration was prolonged,and the peak flow and surface runoff were lower.These effects were more obvious as the slope gradient was bigger.When rain intensity was 1.98mm穖in^-1 and rainfall was 108.8mm,the peak flow and the total runoff on both forested slopes of gradient 15皐as 5% and 4% less than that on the cutting slopes,respectively.

陈军锋, 裴铁璠, 陶向新, 刘四旦, 牛丽华. 河流两侧坡面非对称采伐森林对流域暴雨-径流过程的影响[J]. 应用生态学报, 2000, (2): 210-214.

CHEN Junfeng, PEI Tiefan, TAO Xiangxin, LIU Sidan, NIU Lihua. Effect of unsymmetrical cutting along both river slopes on rainstorm-runoff process[J]. Chinese Journal of Applied Ecology, 2000, (2): 210-214.