Manual restoration method of vegetation in water-level-fluctuating zone of reservoir

Abstract

The invention discloses a manual restoration method of vegetation in a water-level-fluctuating zone of a reservoir. The method comprises the following steps: firstly, leveling, cleaning and tamping the upstream batter surface of the water-level-fluctuating zone when the water level is lowest, secondly, planting riparian homonoia roots or Chinese ash at the top of the outer slope surface of the water-level-fluctuating zone, so as to form a protective forest belt, and thirdly, paving plate-cultured festuca arundinacea on the upstream batter surface of the water-level-fluctuating zone, and in a zone with the fluctuating depth smaller lower than 2 m, and planting miscanthus floridulus in a zone with the fluctuating depth greater lower than 2 m, so as to form a hedgerow belt. The method has the advantages that the construction is convenient, the investment is small, the application range is wide, the vegetation is not easily damaged by flood, a good effect is realized, and the method can be applied to water-level-fluctuating zones of reservoirs in mountains to realize effective water and soil conservation and pollution control.

Description

Technical field [0001] The invention relates to the technical field of reservoir ecological environmental protection, in particular to a method for artificial restoration of vegetation in the water-leveling zone of a reservoir. Background technique [0002] The quality of vegetation in the water-level-fluctuating zone is an important indicator of the healthy operation of a reservoir, and it plays an important role in the reservoir ecosystem. However, due to the storage operation and natural conditions of the reservoir, frequent and large fluctuations in the water level of the reservoir and too long inundation time have caused the vegetation on the edge of the reservoir to be easily destroyed, especially in areas with steep slopes, rapid water flow and poor soil. Vegetation may disappear due to inundation, which means that the reservoir area has lost an ecological barrier, and the hydro-fluid zone will have multiple ecological and environmental problems such as increased pollution...

AI Technical Summary

Problems solved by technology

However, due to reservoir adjustment and storage operation and natural conditions, the water level of the reservoir frequently fluctuates greatly and the submersion time is too long, and the vegetation on the edge of the reservoir is easily damaged, especially in some areas with steep slopes, rapid water flow and poor soil. Vegetation may be submerged and disappeared, which means that the reservoir area has lost an ecological barrier, and various ecological and environmental problems such as increased pollution, increased soil erosion, and frequent geological disasters will appear in the water-fluctuation zone, which threatens the safety of the water quality of the reservoir and the reservoir area. Virtuous circle of ecosystem

[0003] Plant ecological restoration of the damaged ecosystem in the water-fluctuation zone is considered one of the most effective treatment methods by experts at home and abroad. The technology of vegetation protection in the water-fluctuation zone of the reservoir is a major problem. The main difficulties lie in: ① The scope of the water-fluctuation zone The soil is vulnerable to water erosion and loss, and the basic conditions for plant growth are constantly being destroyed; ②The ecological environment in the water-fluctuating zone is harsh, and plants have to endure adverse effects such as deep water, low temperature, lack of fertilizers, and floods for a long time; ③Operation characteristics of the reservoir project so that the vegetation of the stable-type water-fluctuation zone cannot simply be re-established on the new water-fluctuation zone