Second Growth


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second growth

[′sek·ənd ′grōth]
(forestry)
New trees that naturally replace trees which have been removed from a forest by cutting or by fire.

Second Growth

 

(1) Poorly developed shoots of cereal grains (rye, wheat, barley) that form later than the principal shoots as a result of protracted or excessive tillering. Second growth yields a small, deficient grain. Sometimes the shoots do not form any inflorescences (unfertile stems or sprouts). Because it requires water and nutrients, second growth adversely affects formation of grain of the principal shoots. Second growth in grains is fostered by sparse sowing, excessive rains after severe drought, injury to the tillering node, and late nitrogen feedings. Preventive measures include planting varieties that undergo tillering at the same time and observing seeding standards and other agrotechnical measures that ensure uniform development of plants.

(2) The aggregate of trees and shrubs introduced into a forest to accelerate vertical growth and improve the shape of trunks of the principal species. Fast-growing timber trees (birch, Norway maple, elm) and shrubs (Siberian pea tree, filbert) are used as second growth.

References in periodicals archive ?
The results showed that, some cross combinations reached the highest body weight during the first growth phase but lost this advantage in the second growth phase (Su et al., 2012), which suggested the existence of a genetic-based compensatory like growth mechanism.
Radial distribution of thujaplicins in old growth and second growth western red cedar (Thuja plicata Donn).
Second Growth was thought provoking, a pleasure to read, and has been added to my undergraduate and graduate reading lists.
In fact, many of the old growth understory medicinals, according to Kilat and Umar, are easier to locate in second growth forest.
"They went too fast in the beginning there." Now most of Kake's land is cleared, with maybe five years of logging left, and no second growth ready to cut for 50 years.
The photos reminded me of something the World Wide Fund for Nature (WWF) pointed out in a recent study, which is described in this issue's Environmental Intelligence: that 98 percent of the forest in the United States is second growth, which is not nearly as biologically rich or resilient as the original forest it replaced.
They hope these second growth forests will provide new habitat for spotted owls and other wildlife.
That forest is all second growth timber, as is the Tillamook Burn area, where 50 owls have been found.
His realistic novels, many with rural settings, include Remembering Laughter (1937); The Potter's House (1938); On a Darkling Plain (1940); Fire and Ice (1941); The Big Rock Candy Mountain (1943); Second Growth (1947); Country Dance (1948); The Preacher and the Slave (1950), about the I.W.W.
While companies that buy timber from public lands have become increasingly embroiled in battles with conservationists over clearcutting of old-growth forests and endangered species like the spotted owl, Weyerhaeuser's long-time high-yield program designed to spur productivity of natural second growth and plantation crops is today an example of sustainability.
Since Wrigley himself recognizes that there were limits to the growth of the organic economy, and since he hints at only slight causal links between it and his second growth process, it is not clear why he considers this phase part of the Industrial Revolution.
Cohen continued his work with a second growth factor he accidentally encountered while using crude extracts of NGF-containing mouse salivary glands.