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Primary Study on Reasons for the Growth Re-cession of Fragrant Camphor Trees at the West Lake Scenic Area and Diagnosis Procedure 被引量:1
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作者 肖昆仑 《Agricultural Science & Technology》 CAS 2013年第3期470-474,共5页
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 t... 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. 展开更多
关键词 The West Lake Scenic Area Fragrant camphor tree growth and recession REJUVENATION
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4种地被观赏竹的笋期生长特性比较 被引量:10
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作者 林树燕 丁雨龙 王吉子 《林业科技开发》 2007年第1期51-53,共3页
对黄条金刚竹、菲白竹、鹅毛竹、铺地竹的发笋、退笋和高生长等生物学特性做了比较,结果表明4个竹种在发笋和退笋数量上都呈现“少-多-少”的趋势,发笋数铺地竹>菲白竹>鹅毛竹>黄条金刚竹;退笋数鹅毛竹>铺地竹>菲白竹>... 对黄条金刚竹、菲白竹、鹅毛竹、铺地竹的发笋、退笋和高生长等生物学特性做了比较,结果表明4个竹种在发笋和退笋数量上都呈现“少-多-少”的趋势,发笋数铺地竹>菲白竹>鹅毛竹>黄条金刚竹;退笋数鹅毛竹>铺地竹>菲白竹>黄条金刚竹;成竹率菲白竹>铺地竹>黄条金刚竹>鹅毛竹。所有竹种的高生长都呈现“慢-快-慢”的趋势,其生长曲线呈“S”型。高度黄条金刚竹>鹅毛竹>菲白竹>铺地竹。 展开更多
关键词 观赏竹 发笋 退笋 高生长
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