Design of Annual National Forest Resources Remote Sensing Monitoring System in Southeast Asia Countries—Taking Indonesia as an Example

doi:10.13466/j.cnki.lyzygl.2018.03.020

Abstract

Abstract:

Based on 30m global land cover data in 2010 (GlobalLand30),145 and 604 grids are laid separately within Indonesia at 1°×1° and 0.5°×0.5° interval respectively.The coefficient of variation and precision of estimated forest area for 10 different size of plots by two different grid spacing are compared and analyzed.The optimized remote sensing large plots layout in Indonesia is selected based on analysis results.Meanwhile,ground survey plots are established to conduct precision verification.The result shows:1) large plot with the size of 4km×4km at 0.5°×0.5° spacing interval is the optimized sampling plan with consideration of coefficient of variation and precision as well as workload.2) taking Kalimantan Indonesia part as the demonstration site to verify the precision of forest area derived from the large plots layout.The verificaion result shows that the average precision of forest area monitoring is 94.89% using 0.5°×0.5° grid interval and 4km×4km design.The precision meets the national and regional requirement on forest area monitoring.

Key words: Indonesia, plot layout, coefficient of variation, sampling precision, forest resources monitoring

CLC Number:

S757.2

LIU Qian, ZHANG Yuxing, WANG Xuejun, WANG Shaojie, YANG Ying, I Nengah Suratijaya, Dewayany Sutrisno, Ita Carolita. Design of Annual National Forest Resources Remote Sensing Monitoring System in Southeast Asia Countries—Taking Indonesia as an Example[J]. FOREST RESOURCES WANAGEMENT, 2018, (3): 113-120.

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References 17

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地类	面积/hm²	百分比/%
耕地	28933390	15.21
森林	148898779	78.29
草原	7663449	4.03
灌木地	6	0.00
湿地	78	0.00
水体	2820030	1.48
苔原,冻原	0	0.00
人工草地	1842283	0.97
裸地	42891	0.02
永久积雪	0	0.00
总面积 T	190200905	100.00

样地大小/(km×km)	样地网格数量/个	变动系数(C)	精度(P)
1×1	145	0.4522	0.9258
2×2	145	0.4235	0.9305
3×3	145	0.4147	0.9319
4×4	145	0.4116	0.9324
5×5	145	0.4088	0.9329
6×6	145	0.4071	0.9332
7×7	145	0.4046	0.9336
8×8	145	0.4020	0.9340
9×9	145	0.4005	0.9342
10×10	145	0.4003	0.9342

样地大小/(km×km)	样地网格数量/个	变动系数(C)	精度(P)
1×1	604	0.4538	0.9637
2×2	604	0.4390	0.9649
3×3	604	0.4334	0.9654
4×4	604	0.4309	0.9656
5×5	604	0.4297	0.9656
6×6	604	0.4280	0.9658
7×7	604	0.4264	0.9659
8×8	604	0.4248	0.9660
9×9	604	0.4233	0.9661
10×10	604	0.4220	0.9662

年份	森林覆盖率 (大样地监测)	森林覆盖率 (遥感监测)	差值
1990	63.64	66.66	3.02
1996	58.77	62.16	3.39
2000	55.52	58.31	2.79
2003	55.20	57.31	2.12
2006	53.04	55.81	2.77
2009	51.09	53.91	2.82
2011	50.77	53.11	2.34
2012	49.41	52.53	3.12
2013	48.40	51.69	3.29
2014	48.38	51.47	3.08
平均	53.42	56.30	2.87

群团样地	子样地	年份	森林覆盖率			差值
群团样地	子样地	年份	遥感监测		调查数据	差值
1	1-1	2003	11.72		14.10	2.38
		2006	10.64		11.72	1.08
		2009	10.33		9.53	0.79
		2011	9.53		7.13	2.41
	1-2	2003	38.80		39.60	0.81
		2006	37.40		38.76	1.36
		2009	35.76		35.43	0.33
		2011	35.42		32.00	3.42
	1-3	2003	6.75		6.80	0.05
		2006	6.75		6.73	0.02
		2009	6.69		6.18	0.51
		2011	6.18		5.90	0.29
	1-4	2003	23.60		24.73	1.13
		2006	23.13		23.48	0.34
		2009	17.70		17.68	0.02
		2011	17.70		13.46	4.23
2	2-1	2003	40.23		42.85	2.62
		2006	35.45		40.49	5.05
		2009	29.68		29.23	0.45
		2011	28.96		24.35	4.61
	2-2	2003	27.73		28.37	0.64
		2006	21.51		27.93	6.42
		2009	20.50		19.55	0.95
		2011	19.32		17.38	1.94
	2-3	2003	39.62		42.92	3.30
		2006	37.73		42.60	4.87
		2009	35.05		36.34	1.29
		2011	34.29		26.77	7.53
	2-4	2003	30.84		34.22	3.38
		2006	29.90		33.76	3.86
		2009	26.41		20.33	6.08
		2011	18.42		15.49	2.93
3	3-1	2003	67.65		68.52	0.86
		2006	67.50		67.70	0.20
		2009	65.90		51.80	14.10
		2011	51.77		36.41	15.36
	3-2	2003	67.52		67.51	0.02
		2006	66.75		67.50	0.75
		2009	60.40		56.52	3.89
		2011	56.55		43.88	12.67
	3-3	2003	91.00		91.20	0.20
		2006	88.22		91.02	2.80
		2009	85.89		85.49	0.40
		2011	85.47		64.40	21.06
	3-4	2003	71.58		72.66	1.07
		2006	67.34		71.59	4.26
		2009	59.00		55.21	3.78
		2011	55.11		47.13	7.98
4	4-1	2003	69.95		76.19	6.24
		2006	65.55		70.14	4.59
		2009	43.87		32.92	10.95
		2011	32.80		28.15	4.65
	4-2	2003	84.39		92.91	11.52
		2006	84.31		84.90	0.60
		2009	46.55		46.14	0.41
		2011	45.85		38.89	6.96
	4-3	2003	61.61		65.83	4.22
		2006	61.57		62.78	1.21
		2009	56.19		56.21	0.03
		2011	55.05		55.32	0.27
	4-4	2003	72.00		83.51	11.52
		2006	72.00		73.45	1.45
		2009	62.97		64.36	1.39
		2011	62.92		64.36	1.44
平均差				3.62