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The Effects of Waste Gas Flares on the Surrounding Vegetation in South- Eastern Nigeria

Augustine O. Isichei and William W. Sanford
Journal of Applied Ecology
Vol. 13, No. 1 (Apr., 1976), pp. 177-187
DOI: 10.2307/2401936
Stable URL: http://www.jstor.org/stable/2401936
Page Count: 11
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Effects of Waste Gas Flares on the Surrounding Vegetation in South- Eastern Nigeria
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Abstract

(1) Air, soil and leaf temperatures increased and relative humidity of the air decreased within c. 110 m of six flare sites near Port Harcourt in south-eastern Nigeria. (2) Leaf chlorophyll content and internode length of Eupatorium odoratum plants decreased close to the flares. The flowering of the short-day plant, E. odoratum was suppressed in the area of the flares. (3) A bare area, 30-40 m in radius, occurs around the flare stacks. Outside this bare area, the species composition of the vegetation was affected by the flares up to a distance of from 80 to 100 m from the stacks. (4) The total number of species decreased close to the flares, but the proportion of carpeting and C4 plants increased.

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