国家二级保护野生植物红椿抢救性移栽技术探索——以白鹤滩水电站库区红椿移栽为例

Salvage Transplantation Techniques for National Second Level Protected Wild Plant Toona ciliata——A Case Study of Transplantation of Toona ciliata in Reservoir Area of Baihetan Hydropower Station

为保护白鹤滩水电站建设范围内国家二级保护野生植物红椿,采用抢救性移栽方法,移栽野生红椿1 513株,移栽后成活率达94.5%,2年后保存率90.9%。对抢救性移栽结果进行分析,认为在移栽地选择适宜、采用技术得当的情况下,影响红椿抢救性移栽成败的关键因素中,起挖和栽植间隔时间影响最大,其次是土球保留完整程度,再次是树体的损伤程度。移栽成活后,管护是影响保存的关键,尤其是牲畜破坏和人为破坏造成的影响往往是不可逆的。

In order to protect the national second level protected wild plant Toona ciliata within the construction scope of Baihetan Hydropower Station,a salvage transplantation method was adopted.1513 wild Toona ciliata plants were transplanted,with a survival rate of 94.5%and a preservation rate of 90.9%after two years.After analyzing the results of salvage transplantation,the key factors affecting the salvage transplantation of Toona ciliata were the interval time between planting,followed by the integrity of soil balls and the degree of tree damage when selecting the appropriate transplantation site and adopting appropriate technology.After transplantation,management was the key to preservation,especially for livestock and human damage,which were often irreversible.