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wLIde, S. A- (1958), Forest Soits, tieir propertios snd Rolation to Silvicu1tur€. N6w york: fhe Ronal-d. pre6s. '!Tr.nd., e. P. & Schothorst, c. J. (196j+). Th6 infLuence of soil properties on suitabilj.ty for grazing and of grazing on soil prolertles. Trans. 8th ibt. ConBT. Soil Sci. II, 5Z-58O. Yorugberg, a, !. (1959). The i-nfluence of s cli.l conalitiond, fol-foying t?actor 1o6gr-ng, oil the Browth of ltarltod. Douglas fir seealLiags. hoc. Soj.I Sci. Soo, jdF.N. eZ,76-7B, a
Page 1 and 2:
Efl:.6 C'f B. r88$ 0tdl.r675 Lrled
Page 3:
Content s Introductlon Paee( " ) 't
Page 6 and 7:
As pa& of an ecological system, suc
Page 8 and 9:
to the ground per unit area and per
Page 10 and 11:
sepamte from changes associated wit
Page 12 and 13:
8 worEng oh heather moor, birch and
Page 14 and 15:
laboratory incubation studies, comp
Page 16 and 17:
12 d m use of the herbage prductiol
Page 18 and 19:
200000 kg 1 M) ha-'. Grant (pars. o
Page 20 and 21: Pressures exerted on soils and vege
Page 22 and 23: Appreciable mechar~icel damage to v
Page 24 and 25: mtedals, by carbon dioxiae produoed
Page 26 and 27: Although the eWect of tree litter o
Page 28 and 29: B h s (Xersonal com~unication) has
Page 30 and 31: . . harmless and it is the subseque
Page 32 and 33: the soil. pXua vegetation will be a
Page 34 and 35: 'flcathcring of Ixinelal soil mil r
Page 36 and 37: stressed, nutrients are ruuoved fim
Page 38 and 39: )4 In gener:r1, t!€e roots extond
Page 40 and 41: Some evidence suggests that natural
Page 42 and 43: The effect of tre-g varies with age
Page 44 and 45: Assessment of the importance of the
Page 46 and 47: Fo=sts have an appreciable influeno
Page 48 and 49: 5 '.i .} .X it h H 5e ^5^5 sF^^ n e
Page 50 and 51: a F ..i^8. E -J EE 'E oo o -c4 4 lr
Page 52 and 53: fa!16 J. Part of the nutriont buege
Page 54 and 55: Table 5 hrt of the nutrj-ent bud.go
Page 56 and 57: ISFXRE}, CL S Alsxaniler, V. (197f)
Page 58 and 59: Coulson, C. 3,, Davies, R. I. & Lev
Page 60 and 61: Egner, lI. & Eriksson, n. 0955-196A
Page 62 and 63: Iia.rt, R. A. de J. (1968). Stuert
Page 64 and 65: Lid.dl.o, li. J. & trioore, K. c. (
Page 66 and 67: Pa6e, e. (1968). sone eff€cts of
Page 68 and 69: Stewart, J. B. & Olivcr', S, A, (19
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