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Роль климатических факторов в развитии очагов массового размножения сибирского шелкопряда в Центральной Якутии в 1998-2001 гг

Роль климатических факторов в развитии очагов массового размножения сибирского шелкопряда в Центральной Якутии в 1998-2001 гг

Abstract

Основной предпосылкой к увеличению численности сибирского шелкопряда в лесах Центральной Якутии стал продолжительный засушливый период 1991-1998 гг. Малоснежные зимы 1994-1998 гг. снизили выживаемость перезимовывающих в верхних слоях почвы насекомых-энтомофагов, сдерживающих рост численности сибирского шелкопряда. Обильные летние осадки 1997, 1999 гг., приходившиеся на время лёта бабочек шелкопряда, привели к массовому заселению им ограниченных по площади участков. К одним из основных причин снижения численности шелкопряда относятся климатические факторы, важнейшим из которых является возрастание мощности снежного покрова, которое приводит к восстановлению численности насекомых-энтомофагов.

Long dry period of 1991-1998 became the main prerequisite for Siberian silkworm population increase in Central Yakutia. Winters with poor precipitation in 1994-1998 decreased reproduction of insects-entomophagues. They used to pass the winter in upper layers of soil and would restrain development of the Siberian silkworm. Rich summer precipitations in 1997, 1999 that coinsided with the flying period of silkworm butterfly caused mass occupation of definite areas. Climatic factors are one of the main reasons for silkworm population decrease. One of the factors is thick snow cover that leads to reproduction of the entomophague insect.

Keywords

ВРЕДИТЕЛИ ЛЕСА, СИБИРСКИЙ ШЕЛКОПРЯД, ЛИСТВЕННИЧНЫЕ ЛЕСА, ВСПЫШКА МАССОВОГО РАЗМНОЖЕНИЯ, КЛИМАТИЧЕСКИЙ ФАКТОР, ЕСТЕСТВЕННЫЕ ВРАГИ, ГЛУБИНА СНЕГА, КОЛИЧЕСТВО ОСАДКОВ, ЗАСУШЛИВЫЕ ГОДЫ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
bronze