AFSIS2

Soil spectral library from Africa Soil Information Service Phase II (AFSIS2)

VNIR NIR MIR

Continental — Africa

<1,000 samples first release (v1) CC-BY

Map

Data originally provided by:

Contact: Leigh Ann Winowiecki
Email: L.A.WINOWIECKI@cifor-icraf.org
Original source: https://data.worldagroforestry.org/dataset.xhtml?persistentId=doi:10.34725/DVN/XUDGJY

Available files

Type	Filename	Link
MIR spectra — CSV (gzip)	`ossl_mir_v1.3.csv.gz`	Download
MIR spectra — Parquet	`ossl_mir_v1.3.parquet`	Download
Soil lab measurements — CSV (gzip)	`ossl_soillab_v1.3.csv.gz`	Download
Soil lab measurements — Parquet	`ossl_soillab_v1.3.parquet`	Download
Soil site metadata — CSV (gzip)	`ossl_soilsite_v1.3.csv.gz`	Download
Soil site metadata — Parquet	`ossl_soilsite_v1.3.parquet`	Download

Summary statistics for soil properties in this dataset, sourced from the ossl-imports README.

skim_variable	n_missing	mean	sd	p0	p25	p50	p75	p100
ph.h2o_usda.a268_index	11	6.31	0.80	4.10	5.80	6.34	6.76	8.72
al.ext_usda.a1056_mg.kg	1	766.22	321.64	18.00	521.25	769.50	956.00	1851.00
b.ext_mel3_mg.kg	526	1.79	0.70	0.30	1.00	2.00	2.00	4.00
ca.ext_usda.a1059_mg.kg	1	1484.03	1801.00	12.00	404.00	858.50	1961.50	21565.00
cu.ext_usda.a1063_mg.kg	15	2.22	2.41	0.03	0.53	1.40	3.16	18.19
fe.ext_usda.a1064_mg.kg	1	123.62	77.15	13.20	78.10	103.05	145.65	578.00
k.ext_usda.a1065_mg.kg	2	280.76	426.69	5.00	51.00	125.00	316.00	3600.00
mg.ext_usda.a1066_mg.kg	1	304.29	365.74	2.00	89.00	190.00	368.75	3241.00
mn.ext_usda.a1067_mg.kg	1	154.51	120.37	0.70	58.70	129.55	225.90	741.10
s.ext_mel3_mg.kg	9	8.57	18.51	1.00	3.00	5.00	8.00	266.00
zn.ext_usda.a1073_mg.kg	29	1.79	3.17	0.06	0.40	0.90	2.10	48.79
n.tot_usda.a623_w.pct	0	0.10	0.08	0.01	0.05	0.08	0.13	0.53
c.tot_usda.a622_w.pct	0	1.28	1.04	0.10	0.58	0.99	1.66	7.15
oc_usda.c1059_w.pct	0	1.26	1.01	0.10	0.58	0.99	1.62	7.09