Cai Qing,Tang Keli,Cheng Wenliang.Study on Man-made Accelerated Erosion of Forest Land Being Reclaimed by Simulated Rainfall Experiment[J].Research of Soil and Water Conservation,1993,(01):79-86.
林地开垦人为加速侵蚀的人工降雨试验研究
- Title:
- Study on Man-made Accelerated Erosion of Forest Land Being Reclaimed by Simulated Rainfall Experiment
- Keywords:
- forest land being reclaimed; man-made accelerated erosion; simulated rainfall experiment; vegetation destruction
- 摘要:
- 子午岭稍林区基本上代表了现代生态环境下的自然侵蚀。在该区选择典型流域进行林地与开垦地的人工降雨试验，分析评价自然侵蚀和人为加速度的演变与生态环境的关系。本试验选用了两组地形，三组雨强和两组土地处理。研究结果表明，天然次生林地基本上不发生土壤侵蚀，降雨和地形因素对侵蚀的作用不明显；林地开垦后，土壤侵蚀急剧发展，并随雨强和坡度的增大而增强。自然植被的破坏是人为加速的重要原因，侵蚀速率为自然侵蚀的数百倍以上。
- Abstract:
- The Ziwuling forest area stands for natural erosion under present eco-environment, simulated rainfall experiments in forest land and reclaimed land of choosing typical watershed have been done.The results show that soil erosion in forest land does not basically occur,effect of factors of rainfall and topography on soil erosion is not obvious.After forest land is reclaimed, soil erosion rapidilly develops.With increase of rainfall intensity and slope degree,soil erosion in-tensity increass.Natural vegetation destruction is a main cause of man-made accelerated erosion.
参考文献/References:
[1] 陈文亮.组合侧喷式野外人工模拟降雨装置.水土保持通报, 1988(5)
[2] 程积民.子午岭森林植被控制水土流失的作用.水土保持通报, 1987(5)
相似文献/References:
[1]唐克丽,郑粉莉,张科利,等.子午岭林区土壤侵蚀与生态环境关系的研究内容和方法[J].水土保持研究,1993,(01):3.
Tang Keli,Zheng Fengli,Zhang Keli,et al.Research Subjects and Methods of Relationship between Soil Erosion and Eco-Environment in the Ziwuling Forest Area[J].Research of Soil and Water Conservation,1993,(01):3.
[2]唐克丽,张科利,郑粉莉,等.子午岭林区自然侵蚀和人为加速侵蚀剖析[J].水土保持研究,1993,(01):17.
Tang Keli,Zhang Keli,Zheng Fenli,et al.Analysing on Natural Erosion and Man-made Accelerared Erosion in the Ziwuling Forest Area[J].Research of Soil and Water Conservation,1993,(01):17.
[3]白红英,唐克丽,查轩,等.人为加速侵蚀对土壤退化的影响[J].水土保持研究,1993,(01):44.
Bai Hongying,Tang Keli,Zha Xuan,et al.Effect of Man-made Accelerated Erosion on Soil Degradation[J].Research of Soil and Water Conservation,1993,(01):44.
[4]郑粉莉,唐克丽,蔡庆,等.人为破坏植被开垦耕种对坡面细沟侵蚀的影响[J].水土保持研究,1993,(01):50.
Zheng Fenli,Tang Keli,Cai Qing,et al.Impact of Vegetation Being Destroyed and Reclaimed on Rill Erosion of the sloping Lands[J].Research of Soil and Water Conservation,1993,(01):50.
[5]陆中臣,李忠艳,陈浩.黄土高原治理前景评估方法探讨[J].水土保持研究,2005,12(03):173.
LU Zhong-chen,LI Zhong-yan,CHEN Hao.Discussion on the Assessment Approach to the Prospect of the Comprehensive Management of Loess Plateau[J].Research of Soil and Water Conservation,2005,12(01):173.
备注/Memo
收稿日期:1993-3-1
基金项目:国家自然科学基金资助重大项目