大兴安岭塔河典型林分可燃物载量估算  

Estimation on the Forest Fuel Load of Typical Forest Types in Tahe of Daxing'an Mountain

作　　者：胡同欣 鲁佳宇[1] 魏书精[1] 胡海清[1] 孙龙[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2013年第12期52-55,83,共5页Journal of Northeast Forestry University

基　　金：公益性行业科研专项经费项目(201004003-6);中央高校基本科研业务费专项资金项目(DL12CA07);国家自然科学基金(31070544);霍英东基金(131029);黑龙江省博士后启动经费;黑龙江省科技攻关重点项目(GA09B201-06)

摘　　要：利用大兴安岭塔河林业局实地森林调查资料,通过异速生长方程,对典型林分乔木的干、枝、叶、皮的活可燃物载量进行估算;结合林分因子及地表死可燃物载量估测模型,估算死可燃物载量。结果表明:①塔河林业局樟子松林的1 h时滞可燃物载量较高,为(7.90±0.33)t/hm2;兴安落叶松林10 h时滞可燃物载量较高,为(7.10±0.50)t/hm2;山杨林100 h时滞可燃物载量较高,为(3.00±0.60)t/hm2;②塔河地区兴安落叶松幼龄林1、10 h时滞可燃物载量最高,分别为(7.40±0.48)、(7.90±0.80)t/hm2,且随林龄的增加,兴安落叶松林地表1、10 h时滞可燃物载量呈递减趋势;兴安落叶松成熟林的100 h时滞可燃物载量最高,且随林龄增加,兴安落叶松林地表100 h时滞可燃物载量呈递增趋势。③白桦林的地表死可燃物载量最高,为(14.70±0.87)t/hm2;兴安落叶松林可燃物总载量最大,达(190.96±18.56)t/hm2。根据可燃物载量估算结果,提出了相应的林火管理策略。We employed forest field survey data and allometric equations to estimate the fuel loads of trunk,branches,leaf and bark in Tahe of Daxing＇an Mountain. One-hour time-lag fuel average load of Pinus sylvestris is 7. 9±0. 33 t / hm2,ten-hour time-lag fuel average load of Larix gmelinii is 7. 1±0. 5 t / hm2and 100-hour time-lag fuel average load of Populus davidiana is 3. 0±0. 6 t / hm2. The maximum values of young Larix gmelinii one-hour time-lag and ten-hour time-lag fuel average load are 7. 40±0. 48 t / hm2and 7. 9±0. 8 t / hm2,respectively. With age increase,one-hour time-lag and ten-hour time-lag fuel average load of Larix gmelinii show a decreasing trend. 100-hour time-lag fuel average load of mature Larix gmelinii is the highest with age increase and shows a increasing trend. The surface fuel load of Betula platyphylla is 14. 70±0. 87 t / hm2, and the total fuel load of Larix gmelinii is 190. 96±18. 56 t / hm2. According to the estimation results of fuel load,we can put forward the forest fire management strategy.

关 键 词：可燃物载量 异速生长方程 估测模型 林火管理策略 

分 类 号：S718.5[农业科学—林学] S762.1