geoscience.net logo
+ 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

Studies on the primary productivity of a regularly burnt tropical savanna


, : Studies on the primary productivity of a regularly burnt tropical savanna. Annales de l' Universite d' Abidjan, E 6(2): 157-169

In a trial at Fashola, Western State, savanna rangeland from which trees had been removed in 1964 and which was dominated by Andropogon gayanus was burned in (a) Dec. 1969, (b) Jan. '70 or (c) Feb. '70 or (d) was left unburned. The rate of herbage DM production in the following growing season was not affected by burning date but tended to be lower in (d) than in burned plots.

US$29.90


Other references

Kowalczyk, D.; Mytar, B.; Jasinski, M.; Pryjma, J.; Zembala, M., 1995: Modulation of monocyte antigen-presenting capacity by tumour necrosis factor-alpha (TNF): Opposing effects of exogenous TNF before and after an antigen pulse and role of TNF gene activation in monocytes. We have previously shown that exogenous human recombinant tumour necrosis factor-alpha (rTNF), added before an antigen pulse, enhanced antigen presentation by human blood monocytes. The present study shows that, surprisingly, rTNF added after an a...

Harding G.B., 1991: Sheep can reduce seed recruitment of invasive prosopis species. Dense infestation of Prosopis trees in the north-western Cape [South Africa] produce large quantities of nutrient-rich pods which are foraged extensively by sheep. The impact of sheep foraging on the seed population was investigateed using both wh...

Van Gelderen, W.F., 1992: Ultrasound diagnosis of an atypical pneumomediastinum. The diagnosis of an atypical pneumomediastinum in a newborn was confirmed by ultrasound where an echogenic rim of air was noted around the heart. Ultrasound is suggested as an alternative to a decubitus film in differentiating between a pneumomedi...

Nieuwenhuijsen, K.; Verbeek, J.H.A.M.; de Boer, A.G.E.M.; Blonk, R.W.B.; van Dijk, F.J.H., 2004: Supervisory behaviour as a predictor of return to work in employees absent from work due to mental health problems. Aims: To study supervisory behaviour as a predictive factor for return to work of employees absent due to mental health problems; and to explore the association between conditional factors and supervisory behaviour. Methods: Eighty five supervisor...

Blaser M.J., 1989: Infections caused by vibrios and campylobacters. Kelley, W N (Ed ) Textbook Of Internal Medicine Xlviii+2679p J B Lippincott Co : Philadelphia, Pennsylvania, Usa; London, England, Uk Illus 1532-1538

Levitov, L., 1965: Fluphenazine In The Management Of Patients With Anxiety. Current Therapeutic Research, Clinical and Experimental 7: 490-493

Park, J.M.; Borer, J.G.; Chang, B.; Freeman, M.R.; Peters, C.A., 1998: Mechanical stretch mediates heparin-binding EGF-like growth factor expression in bladder smooth muscle cells by autocrine release of angiotensin II. Journal of Urology 159(5 SUPPL ): 21, May

Gutierrez Cabano, Candido A., 1993: Prostaglandins and sulfhydryls may mediate gastric protection induced by verapamil in rats. Verapamil, a type-1 calcium-channel blocker, given intraperitoneally, macroscopically protected the gastric mucosa of rats from 96% ethanol-induced lesions in a dose-dependent fashion. This effect was significant when verapamil at 10 or 20 mg/kg w...

Bergan T., 1973: Epidemiological markers for pseudomonas aeruginosa part 2 relationship between bacterio phage susceptibility and sero group or pyocine type. Acta Pathologica et Microbiologica Scandinavica Section B Microbiology & Immunology 81(1): 81-90

Lefevre, T.; Bernard, A.; Bayet, G., 1989: Value of the calibration of coronary angioplasty balloons. A total of 197 polyethylene balloons of 2 to 4 mm diameter were inflated to 1 to 10 atmospheres to determine the variations of size with respect to pressure of inflation. A linear relationship was observed between diameter and pressure of inflatio...