Nutritional effect of mixed broadleaved and coniferous forest on inhibiting Dendrolimus population growth

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Chinese Journal of Applied Ecology ›› 1995, Vol. 6 ›› Issue (1): 51-55.

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Nutritional effect of mixed broadleaved and coniferous forest on inhibiting Dendrolimus population growth

Zhou Zhangyi

Baing Forestry University, Beijing 100083

Received:1993-05-10 Revised:1993-07-19 Online:1995-01-25 Published:1995-01-25

Abstract

Abstract: The study shows that the metabolic energy of Dendrolimus is originated from fat.When Pinus tabulaeformis is mixed with Cotinus coggygria or Quencus aliena, its leavescontain less crude fat and total sugar, and their C/N ratio is lowered.Because Dendrolimus feeds on pine needles in the mixed forest, the digestion coefficient.weight increment, pupation rate and reproduction capacity of its larvae are all decreased comparing with those in pure forest.

Key words: Dendrolimus, Nutritional effect, Mixed forest, Metabolic energy

Zhou Zhangyi . Nutritional effect of mixed broadleaved and coniferous forest on inhibiting Dendrolimus population growth[J]. Chinese Journal of Applied Ecology, 1995, 6(1): 51-55.

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Nutritional effect of mixed broadleaved and coniferous forest on inhibiting Dendrolimus population growth

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