Aboveground biomass, growth and yield for some selected introduced tree species, namely Cupressus lusitanica, Eucalyptus saligna, and Pinus patula in Central Highlands of Ethiopia

Tesfaye, Mehari Alebachew; Gardi, Oliver; Anbessa, Tesfaye Bekele; Blaser, Jurgen

doi:10.1186/s41610-019-0146-z

Table 4 Summarized result for soil organic carbon and nitrogen carbon density output for each soil depth

From: Aboveground biomass, growth and yield for some selected introduced tree species, namely Cupressus lusitanica, Eucalyptus saligna, and Pinus patula in Central Highlands of Ethiopia

Plot	Species	LUT	SOCD.10.2012	SOCD.10.2017	SOCD.30.2012	SOCD.30.2017	SOCD.50.2012	SOCD.50.2017	SOCD.100.2012	SOCD.100.2017	SOND.10.2012	SOND.10.2017	SOND.30.2012	SOND.30.2017	SOND.50.2012	SOND.50.2017	SOND.100.2012	SOND.100.2017
01	Cropland	CU	26.40	64.80	51.10	112.03	66.40	142.23	90.90	223.15	2.20	4.32	4.10	10.76	5.80	14.54	9.30	24.06
02			30.00	5.98	76.17	11.68	103.71	15.68	156.21	81.68	2.00	0.69	7.13	4.49	10.37	8.49	14.12	16.74
03			28.80	24.48	74.97	54.12	108.99	107.42	156.24	187.29	1.80	2.88	5.22	7.82	8.46	15.43	11.61	26.84
Mean ± SE (CU)			28.4±1.83	31.75±30.08	67.41±14.14	59.28±50.27	93.03±23.22	88.44±65.37	134.45±37.72	164.04±73.55	2±0.2	2.63±1.83	5.48±1.53	7.69±3.14	8.21±2.30	12.82±3.78	11.68±2.41	22.55±5.22
01	Bare land	DL	14.94	13.39	34.83	21.95	48.33	38.99	58.83	57.05	1.07	2.23	2.60	5.08	3.95	7.22	5.45	7.22
02			6.37	3.13	16.27	7.81	21.88	9.30	26.68	12.10	1.06	0.00	3.04	4.68	3.04	6.18	3.04	6.18
03			18.24	0.96	26.16	4.92	29.68	6.84	33.28	8.79	0.96	1.92	2.94	3.90	2.94	3.90	2.94	3.90
Mean ± SE (DL)			13.18±6.13	5.83±6.63	25.75±9.29	11.56±9.11	33.30±13.60	18.38±17.89	39.60±16.98	25.98±26.96	1.03±0.06	1.38±1.21	2.86±0.23	4.55±0.60	3.31±0.56	5.77±1.70	3.81±1.42	5.77±1.70
O1	C.lusitanica	PF	46.20	44.20	98.64	111.23	133.20	142.01	157.20	209.21	3.30	6.12	7.86	15.43	10.02	19.53	14.82	29.13
02			74.48	63.60	160.59	84.58	184.35	118.24	216.75	141.82	4.70	8.10	11.33	10.89	13.49	17.01	17.09	20.94
03			24.29	38.30	50.21	88.92	67.10	123.33	94.33	162.96	2.11	5.47	4.27	10.80	5.68	14.85	8.71	22.05
Mean ± SD (C. lusitanica)			48.32±25.16	48.7±13.24	103.15±55.33	94.91±14.30	128.22±58.78	127.86±12.52	156.09±61.22	171.33±34.47	3.37±1.30	6.56±1.37	7.82±3.53	12.37±2.65	9.73±3.91	17.13±2.34	13.54±4.33	24.04±4.44
04	E. saligna	PF	71.20	71.82	141.40	155.12	186.17	187.84	228.42	222.94	4.00	2.28	9.40	5.48	11.53	8.93	15.76	12.83
05			53.00	47.30	106.46	96.80	135.32	146.00	178.22	209.00	4.00	9.90	7.96	15.84	9.76	18.30	13.66	22.50
06			59.00	43.46	188.96	108.36	246.08	143.04	296.13	164.74	4.00	5.30	13.12	14.57	17.88	20.35	22.43	24.69
Mean ± SE (E. saligna)			61.07±9.27	54.19±15.39	145.61±14.41	120.09±30.88	189.19±55.44	158.96±25.06	234.26±59.17	198.89±30.39	4±0.00	5.83±3.84	10.16±2.66	11.96±5.65	13.06±4.27	15.86±6.09	17.28±4.58	20.01±6.31
07	P. patula	PF	40.80	71.24	88.30	111.72	104.50	138.63	122.00	195.33	2.40	4.11	7.31	9.17	8.93	13.31	11.43	17.36
08			42.40	6.72	82.14	109.76	99.42	119.42	121.42	186.03	3.20	3.36	6.51	3.36	7.95	5.78	10.70	15.29
09			40.16	27.16	80.66	70.72	111.98	160.50	146.98	247.50	2.62	3.88	5.86	9.82	8.99	16.08	11.49	22.08
Mean ± SE (P. patula)			41.12±1.15	35.04±32.97	83.7±4.05	97.4±23.13	105.3±6.32	139.52±20.55	130.13±14.59	209.62±33.13	2.74±0.41	3.78±0.38	6.56±0.73	7.45±3.56	8.62±0.58	11.72±5.33	11.21±0.44	18.24±3.48

CU cultivated land, DL degraded land, PF plantation forest, C Cupressus, E Eucalyptus, P Pinus, SOCD soil organic carbon density (t C ha⁻¹), SOND soil organic nitrogen stock density (t N ha⁻¹), SE standard error of the mean

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ISSN: 2288-1220

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