低强度计划火烧对滇中地区云南松纯林可燃物的影响  

The Influence of Low-Intensity Prescribed Burning on the Combustible Materials of Pinus yunnanensis Pure Forest in Central Yunnan

作　　者：闫想想 张文文 王秋华 方向阳[1] 张武 白万辉 李晓娜 丁宗达 YAN Xiang-xiang;ZHANG Wen-wen;WANG Qiu-hua;FANG Xiang-yang;ZHANG Wu;Bai Wan-hui;LI Xiao-na;DING Zong-da(Kunming Forest Fire Prevention and Control and Forest and Grass Information Center,Kunming Yunnan 650500,China;School of Civil Engineering,Southwest Forestry University,Kunming Yunnan 650224,China;Yunnan Key Laboratory of Forest Disaster Warning and Control,Kunming Yunnan 650224,China;Forestry and grassland Bureauin of Xinping county,Yuxicity,Yuxi Yunnan 653400,China)

机构地区：[1]昆明市林火防控和林草信息中心,云南昆明650500 [2]西南林业大学土木工程学院,云南昆明650224 [3]云南省森林灾害预警与控制重点实验室,云南昆明650224 [4]玉溪市新平县林业和草原局,云南玉溪653400

出　　处：《林业机械与木工设备》2024年第6期83-87,共5页Forestry Machinery & Woodworking Equipment

基　　金：国家自然科学基金(32160376,31960318);云南省农业联合面上项目(2018FG001-055)。

摘　　要：在云南省中部的新平县照壁山云南松纯林内连续4年设置样地,通过外业调查、采样和实验室内实验,观测计划烧除时的火行为,以及计划烧除后的8个月左右对样地内的可燃物进行调查,可燃物包括乔木、灌木、草本和蕨类。结果表明:(1)计划烧除使得乔木的死亡率在10%以下;(2)计划烧除使得灌木、草本和蕨类的高度降低,降低了林内的垂直连续性,而2020年未进行计划烧除,灌木、草本和蕨类的高度有所增加,可见周期性计划烧除促进了林内植被生长;(3)计划烧除使得可燃物载量降低,能较有效地调控可燃物载量;(4)计划烧除使可燃物的种类减少,计划烧除内出现的物种,未计划烧除内均出现,未计划烧除的物种数大于计划烧除的物种数。研究结果能为云南计划烧除提供有利依据。Set up plots in the Pinus yunnanensis pure forest in Zhaobi mountain,Xinping county,central Yunnan province for 4 consecutive years.Through field surveys,sampling and laboratory experiments,observe the fire behavior during the prescribed burning,about 8 months after the prescribed burning investigation of combustibles in the plot,combustibles including trees,shrubs,herbs and ferns,the results show that:(1) Planned burning resulted in a tree mortality rate of less than 10 percent;(2) Planned burning reduced the height of shrubs,herbs and ferns.the vertical continuity in the forest was reduced,while 2020 No prescribed burning was carried out in the year,theheight of shrubs,herbs and ferns increased(3) Planned burning reduces fuel load.It can be seen that the plannedburning can more effectively control the load of combustibles;(4) Planned burning reduces the variety of combusti-bles.the species that appear in the planned burning,but not everything that appears in the planned burning,but notplanned number greater than the number of species of prescribed burning.The research results can provide a favora-ble basis for prescribed burning in Yunnan.

关 键 词：烧损率 火焰 可燃物 计划烧除 云南松纯林 新平县 

分 类 号：S762.8[农业科学—森林保护学]