大河口林区乔木林病害及发生原因分析
Analysis of Tree Forest Diseases and Their Causes in Dahekou Forest Region
王多新 1王军梅 2蒋志成 3蒋志仁4
作者信息
- 1. 甘肃祁连山国家级自然保护区大河口保护站,甘肃张掖 734000
- 2. 甘肃祁连山国家级自然保护区乌鞘岭保护站,甘肃张掖 734000
- 3. 甘肃祁连山国家级自然保护区管护中心,甘肃张掖 734000
- 4. 甘肃祁连山国家级自然保护区祁连保护站,甘肃张掖 734000
- 折叠
摘要
对大河口林区内乔木林主要病害进行了调查分析,并对其发病原因进行了分析.大河口林区乔木林病害有33 种,危害面积达 2 125.7 hm2.大河口林区乔木林病害发病的诱因是林分林地条件差、林木长势较弱,林分树种单纯、结构不合理.在水分、营养、气温均不适宜的条件下,林木长势衰弱,对病害的抵抗力很弱.而且大面积的纯林使得病害极易传播,病害一旦发生,很快就会蔓延成灾.
Abstract
A survey and analysis were conducted on the main diseases of tree forests in the Dahekou forest area,and the causes of their occurrence were analyzed.There were 33 kinds of tree diseases in Dahekou forest region,the damage area was 2 125.7 hm2.The causes of tree diseases in Dahekou forest region were poor stand condition,weak tree growth,simple tree species and unreasonable structure.Under the condition of unsuitable water,nutrition and temperature,the growth vigor of trees is weak and the resistance to diseases is very weak.And the large area of pure forest makes the disease easy to spread,once the disease will spread quickly into disaster.
关键词
大河口林区/乔木/病害/原因Key words
Dahekou forest region/Arbors/Diseases/Cause引用本文复制引用
基金项目
张掖市市级科技计划(2023)(ZY2023BJ08)
出版年
2024
NETL
NSTL
万方数据