摘要
2017年-2019年在祁连山东段山水林田湖草项目实施区调查研究了生物多样性、植物生长环境和森林火险等级变迁。结果表明:山水林田湖草项目实施造林封育后,植被盖度、生物量、群落高度、地表土壤相对含水量、地上1m处空气湿度和森林火险等级随着封育年份的增加而提高;物种数量、地表温度、地上1m处风速和光照强度随着封育年份的增加而降低。
The biodiversity,growing environment and forest fire risk grade change were studied in project implementation area of Qilian Mountain eastern forest,lake,land and grass between 2017-2019.The result showed that after the project implementation of forest,lake,land and grass were planted with trees and closed with fences,the vegetation coverage,biomass,community height,relative water content of surface soil,air humidity above surface soil 1 m and forest fire risk grade were increased with closure and cultivation year increased;the species quantity,temperature of surface soil,wind speed and light intensity above surface soil 1 m were increased with closure and cultivation year decreased.
作者
张海声
ZHANG Hai-sheng(Huazang Forestry Center of Tianzhu County,Tianzhu Gansu 733299,China)
出处
《青海农林科技》
2020年第1期89-91,共3页
Science and Technology of Qinghai Agriculture and Forestry
关键词
生物多样性
生长环境
火险等级
变迁
Biodiversity
Growing environment
Fire risk grade
Change
