+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

How much scarification from summer logging

, : How much scarification from summer logging. Forest Res Notes 110: 1-3

Mineral soil provides optimum conditions for the establishment of birches: it provides a stable moisture supply and allows the rootlets to penetrate to this moisture source immediately. Other types of seedbed sometimes act as a physical barrier and are subject to higher temperatures and to rapid drying. In spite of this, some birch will germinate and survive on humus and even on natural seedbeds. If moisture, light, and other factors are right, enough may survive to produce a well-stocked stand. But these conditions seldom occur, and additional scarification to provide a greater exposure of mineral soil usually will increase the amount of birch. If regeneration of birch is the management objective, a special effort should be made to scarify . a larger proportion of cutting areas than the scant 1/3 found to have been scarified on the surveyed patches.


Other references

Borland, A.; Mowat, A.M.; Parrott, D.M.V., 1983: Augmentation of intestinal and peripheral natural killer cell activity during the graft vs. host reaction in mice. The possibility that nonspecific cytotoxicity may be involved in the pathogenesis of the intestinal phase of the graft-vs.-host reaction (GVHR) was investigated in mice. A GVHR was induced in unirradiated (CBA .times. BALB/c)F1 mice and natural ki...

Butterworth, T., 1984: Mental health nursing. The future training of psychiatric and general nurses. Nursing Times 80(30): 65-66

Giszter, S.F.; Kargo, W., 1999: Independent component analysis of motor patterns in spinal frogs during trajectory correction responses. Society for Neuroscience Abstracts 25(1-2): 110

Taylor, Y., 1996: NPs helping patients breathe easier. Nursing Spectrum 6(2): 9-9

Boda, D., 1988: New tasks of pediatrics in the light of today's requirements. Orvosi Hetilap 129(25): 1299-1303

Bearson, B.L.; Bearson, S.M.D.; Casey, T.A., 2003: Glutathione is required for acid resistance in E coli O157H7. In Escherichia coli, the reduced cytoplasmic environment is maintained by the glutathione- and thioredoxin-dependent reduction systems. Glutathione is important for the detoxification of an array of toxic substances. To determine if a reduced intr...

Plunkett, W.; Alexander, L.; Chubb, S.; Loo, T.L., 1979: Comparison of the activity of 2'-deoxycoformycin and erythro-9-(2-hydroxy-3-nonyl)adenine in vivo. Biochemical Pharmacology 28(2): 201-206

Song,; Li,; Deng, H.W., 1999: Early and delayed cardioprotection by heat stress is mediated by calcitonin gene-related peptide. Brief ischaemia or heat stress protects the myocardium against ischaemia-reperfusion injury. Heat stimulus evokes release of sensory nerve transmitters, including calcitonin gene-related peptide (CGRP). Since CGRP has been shown to play an importa...

Ruiloba Sibaja O.; Peters M.A., 1989: Effect of chronic maternal nicotine on offspring response to autonomic drugs. FASEB Journal 3(4): A1024

Singh, A.D.; Bena, J.F.; Mokashi, A.A.; Jacques, R.; Rundle, P.A.; Rennie, I.G., 2006: Growth of small tumors. Ophthalmology 113(6): 1061.E1-4