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Сoefficients used for InVEST modeling

Table 1. Average number of days with rain by month

Climate zones	Cities	1	2	3	4	5	6	7	8	9	10	11	12
Moderate cool	Севан	1	2	4	7	12	13	9	6	5	2	1	2
	Раздан	2	2	4	5	10	10	8	4	3	2	1	2
	Степанаван	1	1	4	6	11	10	5	3	3	2	1	2
	Ванадзор	2	3	5	8	13	13	8	5	4	3	1	3
	Average	2	2	4	7	12	12	8	5	4	2	1	2
Moderate – humid	Иджеван	1	2	4	6	10	8	4	2	2	2	1	2
	Дилижан	1	2	4	6	11	12	6	4	3	2	1	2
	Алаверди	2	2	4	6	10	8	4	2	2	2	2	2
	Горис	2	2	4	5	9	5	3	1	2	2	2	2
	Average	2	2	4	6	10	8	4	2	2	2	2	2
Arid	Армавир	4	4	5	4	7	7	5	3	4	4	3	4
	Арарат	1	1	1	1	2	1	1	1	0	1	1	1
	Мегри	2	2	4	4	6	3	1	1	1	2	2	2
	Average	2	2	3	3	5	4	2	2	2	2	2	2
Moderate – dry summer	Гюмри	1	1	2	3	6	5	3	2	1	1	1	1
	Гавар	2	3	6	7	13	13	11	8	6	4	2	3
	Варденис	2	1	4	4	9	9	7	4	3	2	2	2
	Сисиан	2	2	4	5	8	7	4	2	2	2	2	3
	Average	2	2	4	5	9	9	6	4	3	2	2	2

Table 2. Precipitation and the number of days with rain in selected cities (http://armenia.pogoda360.ru/¹)

Climate zones	Cities	May			June
		Days with rain	Precipi-tation, mm	Average rain, mm	Days with rain	Осадки, мм	Average rain, mm	Catastrophic rain, mm (50% of monthly precipitation)
Moderate cool	Sevan	12	140	12	13	157	12	79
	Hrazdan	10	113	11	10	120	12	60
	Stepanavan	11	141	13	10	130	13	65
	Vanadzor	13	177	14	13	189	15	95
	Average	12	143	12	12	149	13	75
Moderate relatively humid
	Idjevan	10	127	13	8	97	12	64
	Dilijan	11	133	12	12	133	11	67
	Alaverdi	10	134	13	8	100	13	67
	Goris	9	103	11	5	63	13	52
	Average	10	124	12	8	98	12	62
Arid
	Armavir	7	33	5	7	28	4	17
	Ararat	2	39	20	1	20	20	20
	Meghri	6	81	14	3	44	15	41
	Average	5	51	10	4	31	8	26
Moderate with dry summer
	Gyumri	6	78	13	5	71	14	39
	Gavar	13	147	11	13	166	13	74
	Vardenis	9	109	12	9	99	11	55
	Sisian	8	112	14	7	84	12	56
	Average	9	112	12	9	105	12	56
Average		9	110	12	8	99	12	48

Table 3. The coefficients Kc used for crops according to FAO

	Ini	Mid	End
GRAINS & LEGUMINOUS	0.35	1.15	0.47
POTATOES	0.5	1.15	0.75
VEGETABLES	0.65	1.1	0.87
MELONS	0.5	1	0.8
FRUITS	0.69	1.05	0.78
GRAPE	0.3	0.775	0.45

Table 4. The share of the area of different agricultural crops in the climate zones, %.

Climate zones	Provinces	GRAINS & LEGUMINOUS	POTATOES	VEGETABLES	MELONS	FRUITS AND BERRIES	GRAPE
Arid	Ararat and Armavir (average)	0.12	0.03	0.22	0.07	0.35	0.21
Moderate dry and Moderate cool	Gegharkunik and Shirak (average)	0.79	0.15	0.03	0.00	0.03	0.00
Moderte humid	Tavush	0.33	0.09	0.08	0.01	0.34	0.16

Table 5. Kc values for croplands in the climatic zones

Climate zones	Ini	Mid	End
Arid	0.54	1.00	0.69
Moderate-dry	0.39	1.15	0.54
Moderate cool	0.39	1.15	0.54
Moderate-humid	0.50	1.06	0.64

Table 6. The growing seasons of agricultural crops in the climate zones

Climate zones

1

2

3

4

5

6

7

8

9

10

11

12

Arid

bare

bare

ini

ini

max

max

max

max

end

end

bare

bare

Moderate dry

bare

bare

ini

ini

max

max

max

end

end

bare

bare

bare

Moderate cool

bare

bare

ini

ini

max

max

max

end

end

bare

bare

bare

Moderate humid

bare

bare

ini

ini

max

max

max

end

end

bare

bare

bare

Table 7. Average LAI values by month ​​for natural vegetation in the climate zones based on Copernicus data

Land cover classes	Climate zones	1	2	3	4	5	6	7	8	9	10	11	12
Range-lands	Arid	0.2	0.2	0.3	0.6	1.2	0.6	0.5	0.4	0.3	0.3	0.2	0.2
	Moderate dry	0.3	0.3	0.4	0.9	1.8	3	1.5	0.9	0.7	0.4	0.3	0.3
	Moderate cool	0.2	0.3	0.3	1.0	1.7	2.2	2.2	1.2	0.6	0.4	0.3	0.3
	Moderate humid	0.1	0.2	0.4	0.9	1.8	>3	3	1.5	1.3	0.7	0.3	0.2
Trees*	Moderate humid	0.2	0.3	0.4	1.0	>3	>3	>3	>3	3	1.5	0.3	0.3

Table 8.  Kc values used in the InVEST SWY and UC models

LC classes	Climate zones	1	2	3	4	5	6	7	8	9	10	11	12
Rangelands	Arid	0.07	0.07	0.1	0.2	0.4	0.2	0.16	0.13	0.1	0.1	0.07	0.07
	Moderate dry	0.1	0.1	0.13	0.3	0.6	1	0.5	0.3	0.23	0.13	0.1	0.1
	Moderate cool	0.07	0.1	0.1	0.33	0.6	0.7	0.7	0.4	0.2	0.13	0.1	0.1
	Moderate humid	0.07	0.07	0.13	0.3	0.6	1	1	0.5	0.4	0.2	0.1	0.07
Trees*	Moderate humid	0.07	0.1	0.13	0.33	1	1	1	1	1	0.5	0.1	0.1
Croplands	Arid	0.8	0.8	0.54	0.54	1.00	1.00	1.00	1.00	0.69	0.69	0.5	0.8
	Moderate dry	0.8	0.8	0.39	0.39	1.15	1.15	1.15	0.54	0.54	0.5	0.6	0.75
	Moderate cool	0.8	0.8	0.39	0.39	1.15	1.15	1.15	0.54	0.54	0.5	0.6	0.75
	Moderate humid	0.7	0.7	0.50	0.50	1.06	1.06	1.06	0.64	0.64	0.5	0.5	0.7
Bare ground	Arid	0.8	0.8	0.6	0.4	0.5	0.4	0.2	0.2	0.2	0.4	0.5	0.8
	Moderate dry	0.8	0.8	0.7	0.7	0.9	0.8	0.8	0.7	0.5	0.5	0.7	0.7
	Moderate cool	0.8	0.8	1.0	1.0	1.0	1.0	0.6	0.6	0.5	0.5	0.5	0.8
	Moderate humid	0.7	0.7	0.8	0.8	0.9	0.8	0.4	0.2	0.3	0.5	0.5	0.7

Table 9. Curve numbers used in InVEST models

Land cover classes	Climate zones	A	B	C	D
Cropland	Arid	60	74	83	87	The average values for row crops and orchards from [TR55], adjusted for their area share in different climatic zones of Armenia.
	Moderate Dry	69	79	86	90
	Moderate Cool	69	79	86	90
	Moderate Humid	60	74	83	87
Rangeland	Arid	55	71	81	89	Values for  arid and semiarid grasslands from [TR55]
	Moderate Dry	55	71	81	89
	Moderate Cool	49	69	79	84	Values for humid grasslands from [TR55]
	Moderate Humid	49	69	79	84
Trees	All	42	66	79	85	Values for deciduous broadleaf forests from [Hong&Adler]
Built-up	All	73	83	88	91	The average values between open space and impervious from (TR55), assuming a 50% development density
Bare	All	72	82	83	87	Hong&Adler
Snow	All	98	98	98	98	Asante
Water Flooded veg.	All	98	98	98	98	Asante