文献类型：期刊文献

中文题名：松材线虫病除治迹地营造的15年生木荷林生长分析

英文题名：Growth Characteristics of Schima superba Plantation in Clear-cutting Forestland of Bursaphelenchus xylophilus

作者：陈献志[1] 楚秀丽[2] 黄盛怡[2] 程卫斌[3] 冯贻勇[4] 王斌[2] 周志春[2]

第一作者：陈献志

机构：[1]浙江省临海市自然资源和规划局,浙江临海317000;[2]中国林业科学研究院亚热带林业研究所,浙江杭州311400;[3]临海市括苍镇农业综合服务中心,浙江临海317000;[4]临海市涌泉镇农业综合服务中心,浙江临海317000

年份：2021

卷号：50

期号：4

起止页码：46-53

中文期刊名：西部林业科学

外文期刊名：Journal of West China Forestry Science

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：浙江省重点研发计划项目(2020C02007);中央财政林业科技推广示范资金项目([2018]TS 15号)。

语种：中文

中文关键词：松材线虫病;除治迹地;木荷;生态修复;生长表现

外文关键词：Bursaphelenchus xylophilus;clear-cutting forestland;Schima superba;ecological restoration;growth performance;

分类号：S792.99

摘要：为研究松材线虫病除治迹地营造木荷林的生长表现,指导除治迹地生态修复及木荷高质量林分的培育,以浙江东部地区松材线虫病除治迹地营造的15 a木荷林为研究对象,设置改培模式(纯林和混交2个水平)和坡位(上、中、下坡位3个水平)2个因素,采用完全随机区组设计试验,进行不同改培模式、不同坡位木荷林分的生长量、形质和林分结构的调查和分析。结果显示:(1)木荷林平均树高、胸径、冠幅和单株材积分别为7.91 m、10.95 cm、3.87 m和0.050 m^(3),树干分枝较少,分枝角度较大,干形通直圆满,生长与形质表现良好。(2)木荷-枫香混交改培模式下木荷的树高、胸径、冠幅和单株材积等生长性状指标比纯林改培模式分别高33.14%、13.55%、10.05%和57.38%,说明除治迹地木荷-枫香混交种植极大促进了木荷的生长。(3)不同坡位木荷生长表现存在差异,下坡位木荷生长最佳;木荷-枫香混交一定程度上能够缓解坡位条件对木荷生长的影响,同时增加林内生物多样性。(4)在松材线虫病除治迹地上营造的15 a木荷林,以Ⅱ、Ⅲ级木为主,无Ⅴ级木;纯林和混交模式木荷径阶分布均为单峰左偏山状(c>1),林分结构尚不稳定;径阶中值为下坡>中坡>上坡。总体而言,松材线虫病除治迹地可改培为高质量的木荷林,尤其下坡位木荷表现出更好的生长适应性;采用木荷-枫香混交模式能取得更好的生态修复效果,不仅能够缓解坡位效应,促进木荷生长,而且能够增加林内生物多样性。
The objective of this research is to study the growth performance of Schima superba forest in clear-cutting forestland of Bursaphelenchus xylophilus,and to guide the vegetation restoration of the clear-cutting forestland and the cultivation of high quality S.superba plantation.Investigation and analysis were carried out on the growth characteristics of 15-year-old S.superba forests in the clear-cutting forestland of B.xylophilus in the eastern part areas of Zhejiang province.The growth performance of S.superba forests was evaluated according to different plantation modes and site conditions.The results showed that:(1)S.superba grows well in the clear-cutting forestland of B.xylophilus.The average height,diameter at breast height(DBH),crown width and individual volume of trees were 7.91 m,10.95 cm,3.87 m and 0.050 m^(3) respectively,with less stem branches,large branch angle,straight stem,and good timber.2)The growth indexes of S.superba forests under the mode of mixed with Liquidambar formosana,such as height,DBH,crown width,and individual volume of trees,were respectively 33.14%,13.55%,10.05%,and 57.38%higher than those of pure plantation,and the height of trees was significantly higher than that of pure plantation,indicating that S.superba mixed with L.formosana greatly promoted its growth in the clear-cutting forestland.3)The growth of S.superba forests was different in different slope positions and the forests grow best in the downslope position.The mixed mode could alleviate the influence of slope conditions on the growth of S.superba to some extent and increase the biodiversity of the stand at the same time.4)The tree classification of S.superba forests are mainlyⅡandⅢlevel trees,withoutⅤlevel trees.In the pattern of pure plantation and mixed with L.formosana,the diameter class distribution of S.superba forests was left hill-like shape(c>1)with a single peak,which means the stand structure is not stable,and the diameter class median was down>middle>upper.In general,the clear-cutting forestland of B.xylophilus can be transformed into high quality S.superba plantation,especially the growth of S.superba was better in the downslope position.It is suggested that the pattern of mixed with L.formosana should be selected when planting S.superba forests in the clear-cutting forestland,which can not only alleviate slope effect and promote the growth of S.superba,but also increase the biodiversity in the forest.