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E-mail: onuchin@ksc.krasn.ru, burenina@ksc.krasn.ru, natlily@mail.ru, sfarber@ksc.krasn.ru
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Y = –495.8 + 60.9 ln Xz T75 + 198.3 ln Xg Yp /(t5+ t7+ 5) + 1.22 Xg/(tg+11) 0.45 24.8 15.5
Y = 41.9 + 0.0054 Xz T86 + 0.23 Xz Xl / t5t7 0.50 26.2 20.8
Y = 1150.0 + 0.103 T84 (Xz– 11.5) + 0.202 Xz Xl / t5 t7 – 1.03 T60 – 8.64 Xz 0.51 25.8 9.3
Y = 91.0 – 1.3 T67 + 1.3 T84 – 5.3 t7 + 7.3 t9 + 1.8 t9 tg + 3.25 Xg / (tg+ 11) – 0.35 Xl 0.53 14.3 5.8
Y = 58.2 + 0.121 Xz Xl / (t5 t7) + 0.54 t9(tg + 11) – 0,5 T62 0.46 15.8 12.1
. Y – , ; Yp – , ; Xz–
, ; Xg –
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; Xl– , ; t9 –
; T60 – ( . 60 84, 1960 . T60 = 60
const, 1984 . T60 = 84 const); T62 – ( . 62 80, 1962 . T62 = 62 const,
1980 . T62 = 80 const); T67 – ( . 67 84, 1967 . T67 = 67 const, 1984 . T67 =
84 const); T75 – ( . 75 99, 1975 . T75 = 75 const); T84 – ( .
84 99, 1984 . T84 = 84 const); T86 – ( . 86 99, 1986 . T86 =
= 86 const); R2 – ; G – ; F –
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№ 3. . 26.
Onuchin A., Balzter H., Borisova H., Blyth E.
Climatic and geographic patterns of river-runoff formation in Northern Eurasia // Adv. Water Res. 2006. Vol. 29. No. 9. P. 1314–1327.
Onuchin A. A., Burenina T. A., Gaparov . .,
Ziryukina N. V. Land use impacts on river
hydro-logical regimes in Northern Asia // Hydroinform. Hydrol., Hydrogeol. Water Res. IAHS, 2009. Vol. 331. P. 163–170.
http://meteo.krasnoyarsk.ru/
Impact of Forest Harvesting and Forest Regeneration
on Runoff Dynamics at Watersheds of Central Siberia
A. A. Onuchin, T. A. Burenina, N. V. Ziryukina, S. K. Farber
V. N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch Academgorodok, 50/28, Krasnoyarsk, 660036 Russian Federation
E-mail: onuchin@ksc.krasn.ru, burenina@ksc.krasn.ru, natlily@mail.ru, sfarber@ksc.krasn.ru
In the paper disturbance of Angara river region forests were estimated and peculiarities of forest regeneration after logging and wild fires were analyzed. According to the landscape classification of the regional study, three groups of landscapes differencing on types of forest successions were developed. It was shown that water protective and water regulate functions of the Angara river re-gion forests change under commercial forest harvesting. Comparisons of the inventory and hydro-logical data detected that hydrohydro-logical consequences of commercial forest harvesting are dependent on climatic parameters and forest regeneration peculiarities. In the continental climate conditions, when forest regeneration is delayed, snow storms are more active, snow evaporation increases and runoff reduces. In the process of logging sites overgrown with secondary small-leaved forest, snow accumulation increases and runoff increases, exceeding the value of annual runoff at undisturbed watersheds.
