西部林业科学
西部林業科學
서부임업과학
Journal of West China Forestry Science
2015年
5期
108-113
,共6页
东北林区%贮木场%火险等级%模糊识别%权重系数
東北林區%貯木場%火險等級%模糊識彆%權重繫數
동북림구%저목장%화험등급%모호식별%권중계수
forest area of Northeast China%lumberyard%rate of fire risk%fuzzy recognition%weight coefficient
针对贮木场火险的特点,构建了贮木场评价的指标体系,并应用变异系数法和层次分析法相结合确定了其权重。根据林区贮木场火险评价体系具有多因素、多层次的特点,采用模糊识别法进行综合评价。将加权广义权距离之和最小模糊识别运用到模糊综合评价当中,建立了模糊评价模型,避免了单因素矩阵的确定和模糊算子的选择问题,用安全状态特征值来表征最终的评价结果,避免了模糊综合评价的不足之处,使评价结果更加准确,可操作性强。对东北林区4个贮木场(绥棱林业局贮木场、占河林业局贮木场、白河林业局贮木场和满归林业局贮木场)火险评价实例证明,该模型具有较好的应用价值,可为贮木场火险等级评价提供参考。
針對貯木場火險的特點,構建瞭貯木場評價的指標體繫,併應用變異繫數法和層次分析法相結閤確定瞭其權重。根據林區貯木場火險評價體繫具有多因素、多層次的特點,採用模糊識彆法進行綜閤評價。將加權廣義權距離之和最小模糊識彆運用到模糊綜閤評價噹中,建立瞭模糊評價模型,避免瞭單因素矩陣的確定和模糊算子的選擇問題,用安全狀態特徵值來錶徵最終的評價結果,避免瞭模糊綜閤評價的不足之處,使評價結果更加準確,可操作性彊。對東北林區4箇貯木場(綏稜林業跼貯木場、佔河林業跼貯木場、白河林業跼貯木場和滿歸林業跼貯木場)火險評價實例證明,該模型具有較好的應用價值,可為貯木場火險等級評價提供參攷。
침대저목장화험적특점,구건료저목장평개적지표체계,병응용변이계수법화층차분석법상결합학정료기권중。근거림구저목장화험평개체계구유다인소、다층차적특점,채용모호식별법진행종합평개。장가권엄의권거리지화최소모호식별운용도모호종합평개당중,건립료모호평개모형,피면료단인소구진적학정화모호산자적선택문제,용안전상태특정치래표정최종적평개결과,피면료모호종합평개적불족지처,사평개결과경가준학,가조작성강。대동북림구4개저목장(수릉임업국저목장、점하임업국저목장、백하임업국저목장화만귀임업국저목장)화험평개실예증명,해모형구유교호적응용개치,가위저목장화험등급평개제공삼고。
According to the fire risk characteristics of lumberyards, the index system of fire risk assessment was es-tablished, and its weights were determined by hierarchic analysis and coefficient of variation method.Since the lumberyards fire risk assessment system has multiple factors and multiple levels, fuzzy synthetic assessment was a-dopted.For avoiding shortcomings of the fuzzy synthetic assessment, the fuzzy recognition was used into the fuzzy synthetic assessment based on model.This model could avoid the determination of single factor matrix and the op-tion of fizzy calculation unit.The final assessment result is expressed by the value of safety status features, and this makes the assessment result more accurate and more operational.The fire assessment of 4 lumberyards in forest ar-ea of Northeast China by using this model shows that it has high value for actual practice and it could provide good reference for fire risk classification.