Wang Youke,Wu Qinxiao,Zhao Hongyan,et al.AN EXPERIMENTAL STUDY ON ANTI-SCOURABILITY OF LITTER ON WOODLAND[J].Research of Soil and Water Conservation,1991,(02):57-63.
林地枯落物抗冲试验研究
- Title:
- AN EXPERIMENTAL STUDY ON ANTI-SCOURABILITY OF LITTER ON WOODLAND
- Keywords:
- litter; anti-scourability; scouring amount of soil
- 摘要:
- 通过对枯落物抗冲性测定资料分析，得出枯落物自身抗冲能力与其增强土壤的抗冲效应相一致，抗冲能力大小顺序为油松>山杨>沙棘>刺槐。枯落物的抗冲力还随其厚度增加而提高，与单位面积中的活植物茎数量成正相关。具有枯落物的林地土壤冲失量主要取决于冲刷的前1～3min，而与更长的冲刷历时关系不大，但与冲刷径流强度关系紧密，每当径流出现增值都会引起土壤冲失量新的峰值。
- Abstract:
- Based on the analysing data obtained in the experiment, it has been found that the anti-scourability of litter itself was in keeping-with its increasing effect of soil anti-scourability. The order put in accordance with anti-scourability of litter was Pinus tabulaeformis>Populus davidiana>Hippophae rhamnoides>Robinia pseudoacacia. It had also a positive correlation to amount of stems of living plant per unit area, and increasing with the thickness of litter. The soil loss on woodland with litter mainly happened in the first 3 min. of scour and did not bear a close relation to more long time of scour. Whenever runoff increased, a new peak value of scouring amount of soil was provoked
参考文献/References:
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[2] M·J·柯克比主编, 刘新仁等译.《山坡水文学》, 哈尔滨工业大学出版社, 1989, 7
[3] 周善生主偏.《水力学》, 高等教育出版社, 1980, 7
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