Zonal aspects of the influence of forest cover change on runoff in northern river basins of Central Siberia

Forest Ecosystems

Table 2 Models of dependence of climatic indicators on annual runoff of individual rivers

No.	River	Model	R²	G	F
1	Gorbiachin	RR = − 517.5 + 0.69X_j + 2.9X_t + 5.7Т₇	0.84	46.3	28.1
2	Graviyka	RR = 62.7 + 0.50X_j + 1.1X_t – 12.2Т₅	0.46	76.7	14.3
3	Soviet River	RR = 157.9 + 0.26X_j + 0.41X_t – 10.1Т₅	0.30	46.6	4.9
4	Kureika	RR = −6.3 + 0.9X_j + 9.4Т₉ + 0.00108(Y_p X_t)	0.63	60.4	15.1
5	Turukhan	RR = 115.3 + 0.39X_j + 0.53X_t – 2.69Т_(5 + 6)	0.45	44.0	10.9
6	Erachimo	RR = 154.5 + 0.37Х_p + 0.58X_j – 10.1Т₅	0.46	57.5	11.4
7	Tembenchi	RR = − 447.7 + 1.5X_t + 32.0Т₇ + 1.7Х₉	0.57	55.5	10.6
8	Taimura	RR = − 250.5 + 0.50X_t + 10.6Т₇ + 0.57Х₈	0.73	22.7	13.7
9	P. Tunguska	RR = 51.3 + 0.15X_j + 0.41X_t – 3.2Т₅	0.70	19.4	20.3

RR: the annual flow of the river, mm; X_j: the annual amount of liquid precipitation, mm; X_t: the annual amount of solid precipitation, mm; X_8,9: the average monthly rainfall in August and September, mm; Y_p: runoff of the previous year; T_5,6,7: average air temperature respectively in May, June and July, °C; R²: coefficient of multiple determination; G: standard error of the equations; F: Fisher criterion. The equations include the statistically significant variables (0.05)