Study On The Moisture And Moisture Loss Of Forestry Fuels

The ignitability of forest fuels is partly determined by the moisture of fuels, especially that of fine fuels. 64 species of arbor and shrub leaves branches and barks fuels are used in this study, and the relationship of the moisture of forest fuels and the ignitability of forest fuel is studied. The result shows that the moisture of fuel can use as an index of fuel ignitability.At the same time we ignited the fuels to determind the initial moisture of forest fire spread and the initial moisture of forest fire ignition.According to the fuel moisture loss, the leaves fuel which has the highest moisture is that: Phellodendron amurense, Padus racemosa, Tilia mandschurica , Crataegus pinnatifida , Actinidia arguta , Betulanigra, Fraxinus rhynchophlla , Chosenia macrolepis(Turcz.) ,- the leaves fuel which has the lowest moisture is that: Finns densata,. Vaccinium. Vitis-idaea , Rohododendron dahuricum. , Syringa.oblata, Rosa davurica , Periploca septum, Populus Koreana , Fraxinus mandshurica, Ledum palustre, Lonicera caerulea var. edulis Turcz. ex Herd. , Pinus pumila , Picea Koraiensis , V.burejaeticum , Ulmus pumila , Caragana arborescens , Vaccinium uliginosum , Acanthopanax senticosus.The branch fuels which have the highest moisture is that: Rubus sachalinensis , E.maackii , Acer mono , Lonicera caerulea var. edulis Turcz. ex Herd., Ribes acuminatum , Rhododendron simsii ; the branch fuels which have the lowest moisture is that: Sorbaria sorbifolia, Cornus alba. , Vaccinium. Vitis-idaea, Aralia elata, Rhamnus davurica , Betula fruticosa , Syringa. oblata. The bark fuels which have the highestmoisture is that: Tilia amurensis , Malus baccata , Ulmus macrocarpa , Padus racemosa , Abise holophylla , Ulmus pumila , Lonicera maackii; the bark fuels which have the lowest moisture is that: Acer ginnala, Larix gemelinii, Populus Koreana, Picea Koraiensis , Phellodendron amurense, Larix olgensis, Pinus sylvestris var. mongolica.According to the fuels moisture, the leaves fuels which have the highest moisture is that: Pinus densata. , Vaccinium. Vitis-idaea , Acanthopanax senticosus , PiceaKoraiensis , Lonicera caerulea var. edulis Turcz. ex Herd., Rohododendron dahuricum., Finns pumlla , Ledum painstre , Lonicera maackii , Pinus koraiensis ; the leaves fuels which has the lowest moisture is that: Acer saccharum, Fraxinus rhynchophlla, Crataegus pinnatifida, Betula nigra, Chosenia macrolepis(Turcz.). The branch fuels which have the highest ignitability is that: Sorbaria sorbifolia , Cornus alba, the branch fuels which have the lowest ignitability is that: V.burejaeticum , Ribes acuminatum, Actinidia arguta, Periploca sepium,, Rubus sachalinensis, Rhododendron simsii, Lonicera caerulea var. edulis Turcz. ex Herd..The bark fuels which have the highest moisture is that: Acer ginnala , Pinus sylvestris var. mongolica., Larix gemelinii , Picea Koraiensis , Salix matsudana , Larix olgensis, Populus Koreana , Phellodendron amurense , Pinus pumila , Pinus koraiensis , Quercus mongolicas , Betula platyphylla , Alnus incana, P. davidiana, Pinus tabulaeformis , Hemiptelea davidii , Acer mono , Chosenia macrolepis (Turcz.) , Betula nigra ; the bark fuels which have the lowest moisture is that: Ulmuspumila,Lonicera maackii.According to the initial moisture of forest fire ignition and the initial moisture of forest fire spread, the shurb fuel which has the lowest ignitability is that: Syringa.oblata , Cornus alba. , Vaccinium. Vitis-idaea , Rohododendron dahuricum., Acanthopanax senticosus, Sorbaria sorbifolia ; the shrub fuel which has the highest ignitability is that: Actinidia arguta , Rubus sachalinensis. Crataegus pinnatifida.According to the initial moisture of forest fire ignition and the initial moisture of forest fire spread, the arbor fuel which has the highest ignitability is that: Salix matsudana , Picea Koraiensis , Acer ginnala , Juglans mandshurica , Pinus koraiensis , Ulmus macrocarpa , Hemiptelea davidii , Malus baccata , Betula platyphylla ,...