衰老期红花油茶截干高度与留枝数量对树冠重建的影响

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中图分类号：S794.4 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.06.010

Effects of Trunk-cutting Height and Reserved Branch Number on Canopy Reconstruction of Camellia chekiangoleosa in Senescent Stage

Wu Zuochun （Qiangmin Camellia oleifera Professional Cooperative of Xiapu County，Ningde 3551oo，China）

AbstractAimingat the problem of canopy decline of Camelia chekiangoleosa during the senescence stage，the efects of trunk-cuting height and the number of reserved branches on canopy reconstruction were studied and analyzed. The results showed that cutting the trunk 60cm above the ground combined with reserved three vigorous lateral branches was the optimal treatment combination，and the length of the new shoots reached 85.6cm ，with a thickness of 6.7mm .The leaf area index was 2.15，which was 95% higher than that of the conventional management control.The number of primary branches was 10.2，with an opening base angleof 52.6，and the vertical distribution was reasonable.It was confirmed that median trunk cuting combined with moderate branch reservation can balance dormant bud activation and nutrient supply，providing a basis for formulating the technical regulations for trunk cutting and rejuvenation of Camellia chekiangoleosa in the senescence stage.

Key words Camellia chekiangoleosa ;senescent stage;trunk cutting;branch reservation;canopy reconstruction

浙江红花油茶（Camelliachekiangoleosa）作为重要木本油料和观赏兼用树种，不仅以其鲜艳硕大的花朵装点山林，更以其种子富含高品质茶油而具有显著的经济价值。（剩余4432字）