Abstract:

In order to determine ramie mechanism of soil and water conservation, and for the use of ramie management of large area to provide theoretical basis for the slope soil and water loss, the different utilization of ramie leaf area index, leaf retention effect, water holding capacity of litter, underground root distribution were studied to clarify the mechanism of its soil and water conservation. The results showed that: do not harvest area ramie leaf area index was significantly higher than that of control; ramie leaf area did not harvest a maximum interception 2.56 mm, higher than the other plots; its coverage on the lower leaf surface temperature and maintain the soil moisture was more obvious and effective; planting ramie plot of fresh weight of different root that the rule was radish root>pole root>leading root>fine roots; ramie root depth of up to 60 cm, maize root depth of only 30 cm. This research showed that ramie soil and water conservation effect was good, the main reasons were the root system, main root deep soil developed, and the root system wide distribution, covering time long, leaf area index.