Precision monitoring of radial growth of trees and micro-climate at a Korean Fir (Abies koreana Wilson) forest at 10 minutes interval in 2016 on Mt. Hallasan National Park, Jeju Island, Korea

Kim, Eun-Shik; Cho, Hong-Bum; Heo, Daeyoung; Kim, Nae-Soo; Kim, Young-Sun; Lee, Kyeseon; Lee, Sung-Hoon; Ryu, Jaehong

doi:10.1186/s41610-019-0117-4

Table 1 Correlation coefficients and the levels of significances among the environmental factors

From: Precision monitoring of radial growth of trees and micro-climate at a Korean Fir (Abies koreana Wilson) forest at 10 minutes interval in 2016 on Mt. Hallasan National Park, Jeju Island, Korea

	Mean daily soil temp. at depth of 20 cm	Mean daily soil temp. at depth of 30 cm	Mean daily soil temp. at depth of 50 cm	Mean daily ambient temp.	Mean daily relative humidity	Mean daily solar radiation	Mean daily soil moist. Content at depth of 20 cm	Mean daily soil moist. Content at depth of 30 cm	Mean daily soil moist. Content at depth of 50 cm
Daily precipitation	−0.170	− 0.148	− 0.158	− 0.144	0.363	− 0.490	0.809	0.701	0.488
Daily precipitation	P = 0.05	P = 0.08	P = 0.06	P = 0.09	P < 0.0001	P < 0.0001	P < 0.0001	P < 0.0001	P < 0.0001
Mean daily soil temp. at depth of 20 cm		0.976	0.941	0.961	0.456	−0.216	0.055	0.019	−0.158
Mean daily soil temp. at depth of 20 cm		P < 0.0001	P < 0.0001	P < 0.0001	P < 0.0001	P = 0.01	P = 0.52	P = 0.83	P = 0.06
Mean daily soil temp. at depth of 30 cm			0.989	0.907	0.506	−0.285	0.061	0.029	−0.180
Mean daily soil temp. at depth of 30 cm			P < 0.0001	P < 0.0001	P < 0.0001	P = 0.001	P = 0.47	P = 0.73	P = 0.03
Mean daily soil temp. at depth of 50 cm				0.863	0.503	−0.277	0.038	0.0098	−0.209
Mean daily soil temp. at depth of 50 cm				P < 0.0001	P < 0.0001	P = 0.001	P = 0.66	P = 0.91	P = 0.01
Mean daily ambient temperature					0.377	−0.153	0.053	0.014	−0.174
Mean daily ambient temperature					P < 0.0001	P = 0.07	P = 0.53	P = 0.87	P = 0.04
Mean daily relative humidity						−0.763	0.475	0.491	0.407
Mean daily relative humidity						P < 0.0001	P < 0.0001	P < 0.0001	P < 0.0001
Mean daily solar radiation							−0.545	−0.511	−0.387
Mean daily solar radiation							P < 0.0001	P < 0.0001	P < 0.0001
Mean daily soil moist. Content at depth of 20 cm								0.942	0.707
Mean daily soil moist. Content at depth of 20 cm								P < 0.0001	P < 0.0001
Mean daily soil moist. Content at depth of 30 cm									0.758
Mean daily soil moist. Content at depth of 30 cm									P < 0.0001

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ISSN: 2288-1220

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