COMPARING POTENTIAL FUEL TREATMENT TRADE-OFF MODELS Initial results
COMPARING POTENTIAL FUEL TREATMENT TRADE-OFF MODELS Initial results
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比较潜在的燃料处理权衡模型 初步结果
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Schaaf
中科院分区：
文献类型：
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作者：
D. Weise;R. Kimberlin;M. Arbaugh;J. Chew;J. Merzenich;M. Wiitala;R. Keane;M. Schaaf
在全国范围内实施全面的燃料管理计划之前，需要了解火灾对生态系统影响的短期和长期后果之间的权衡。我们正在评估美国主要燃料类型的8个地点的3个潜在权衡模型，我们介绍了3个选定模型/建模方法的初步测试结果，以及蒙大拿州西部BiHerroot国家森林（BNF）的第4个模型。选定的模型/建模方法是：1）火灾排放权衡模型（FETM），2）顺序使用SIMPPLLE和MAGIS模型，3）植被动态发展工具（VDDT），以及4）景观演替模型（LANDSUM）。我们模拟了50年以上的3种燃料处理：1）没有行动，2）规定在美国黄松和道格拉斯冷杉类型在2个不同的速度燃烧，3）木材采伐，返回到繁殖阶段的立场。所有模型的模拟结果表明，花旗松和黄松类型的面积不会明显改变燃料治疗。大多数模型表明，收获处理将减少野火和烟雾排放所烧毁的面积;一些模型表明，规定的火灾处理将减少野火面积。所有模型都表明，采伐处理会减少杆大小的树木面积，一些模型表明，火灾处理会增加树苗大小的树木面积。
Understanding the trade~offs between short-term and long-term consequences of fire impacts on ecosystems is needed before a comprehensive fuels management program can be implemented nationally. We are evaluating 3 potential trade-off models at 8 locations in major U.S. fuel types, We present results of the initial testing of the 3 selected models/modelling approaches and a 4th model on the BiHerroot National Forest (BNF) in western Montana. The selected models/modelling approaches were 1) the Fire Emissions Trade-off Model (FETM), 2) sequential use of the SIMPPLLE and MAGIS models, 3) the Vegetation Dynamics Development Tool (VDDT), and 4) the LANDscape SUccession Model (LANDSUM). We simulated 3 fuel treatments over 50 years: 1) no action, 2) prescribed burning in ponderosa pine and Douglas-fir types at 2 different rates, and 3) timber harvesting that returns the stand to a reproduction stage. Simulation results for all models suggested that the acreage of Douglas-fir and ponderosa pine types would not be appreciably altered by the fuel treatments. Most models suggested the harvest treatment would reduce area burned by wildfire and smoke emissions; some models suggested the prescribed fire treatment would reduce wildfire acreage. All models suggested that the harvest treatment would reduce acreage of pole-size trees; some models suggested the fire treatment would increase acreage of sapling-size trees.