OBSERVING FOXES Catching a sight of an fox in the wild is quite a challenge, because they have a lifestyle where they mainly move and hunt in dusk or at night. People think that foxes are cleaver because of their good hunting skills by escaping fast and mixing traces. During the hunt, they are very cautious. The red fox is very curious. When they see some interesting and unusual objeckt, such as a human, the fox can easely come to investigate. The best place to see a fox is in the coppices. In the winter, set out during the daytime, when it is still white outside and find a likely spot. Then sit quietly and try not to move much. If you are fortunate, these fascinating creatures may come quite close.
S agedamini kasutatavad biomassi ühikute vahelised üleminekutegurid 1 PJ = 0,278 TWh = 0,024 Mtoe = 139 000 tm (m3) puitu = 5 900 ha SRC*, 1 TWh = 3,6 PJ = 0,086 Mtoe = 500 000 tm (m3) puitu = 21 400 ha SRC, 1 Mtoe = 41,868 PJ = 11,63 TWh = 5,8 mln tm (Mm3) puitu = 248 500 ha SRC, 1 Mln tm (Mm3) puitu = 0,172 Mtoe = 7,19 PJ = 2 TWh = 42 800 ha SRC, 1 Mha SRC = 4 Mtoe = 168,3 PJ = 46,8 TWh = 23,4 mln tm (Mm3) puitu, *SRC = kiiresti kasvavad kultuurid (ingl k. - short rotation coppices), eeldusel, et saak on 9 t kuivainet hektarilt aastas. P uit kui kütuste lähteaine, selle omadused Joonis 1. Puitkütuse koostis Puit, täpsemalt puidurakkude kest, koosneb põhiliselt tselluloosist, ligniinist ja hemi- tselluloosist. Ligniin on tänu suurele süsiniku- ja vesinikusisaldusele kõrgema kütteväär- tusega kui tselluloos ja hemitselluloos. Puit sisaldab vähesel määral ka tõrva, vaikusid ja
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