杭州西湖景区古香樟生长衰退原因及诊断程序初探(英文)

Primary Study on Reasons for the Growth Re-cession of Fragrant Camphor Trees at the West Lake Scenic Area and Diagnosis Procedure

香樟是杭州市市树,在杭州市的古树中占有较大比重。近年来,随着环西湖景区的免费开放和西湖综合保护工程的实施建设,使得部分古香樟面临立地环境改变等问题,有的古香樟出现了生长势衰弱,甚至濒临死亡。如不及时进行救治和复壮,将对滨湖景观的良好保持和可持续发展造成极为不利的影响。因此,加强对环西湖景区古香樟的保护管理,开展环西湖古香樟生长衰退原因诊断程序研究,对今后环西湖古树的保护和复壮均很有意义。列举了影响古树生长的几种因素与判断指标,对其衰退原因进行了系统诊断,并简单讨论了古樟树的复壮措施。

Fragrant camphor tree is the city tree of Hangzhou which takes a large proportion of the ancient trees in Hangzhou City. Recently, with the free open of the attractions around the West Lake and the implementation of the comprehensive pro- ject for protecting the West Lake, a part of ancient fragrant camphor trees are fac- ing problems such as altered living conditons. Some of them are showing a decline in growth vigor or even close to death, which will produce extremely negative influ- ences on the maintaining and sustainable development of the West Lake Scenic Area if without any timely measures for the rescue and rejuvenation of the trees. Therefore, strengthening the protection and management of ancient fragrant camphor trees at the West Lake Scenic Area and carrying out researches on the procedure for diagnosing the reasons for the growth recession of the ancient fragrant camphor trees at the West Lake Scenic Area are of great significance for the future protec- tion and rejuvenation of the ancient trees around the West Lake. The factors influ- encing the growth of ancient trees and indexes for judging the growth condition were listed and the reasons for the growth recession were systematically summa- rized in this paper. In addition, measures for the rejuvenation of the ancient fragrant camphor trees were also simply discussed.