Citation:

PANGAEA.883611

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Abstract:

Soil phosphorus (P) fractions are critical for understanding soil P dynamics and availability. This paper provides a global dataset of soil P fractions separated by the Hedley method. The dataset also includes key environmental factors associated with soil P dynamics and availability, including climate factors, vegetation, soil and parent material types, soil age, and soil physiochemical properties such as particle size, bulk density, pH in water, organic carbon, total nitrogen, and extractable iron and aluminium concentrations. This dataset includes measures of Hedley P fractions of 802 soil samples and was gathered through a literature survey of 99 published studies. Plant availability of each soil P fraction was noted. We anticipate that the global dataset will provide valuable information for studying soil P dynamics and availability, and it will be fused into earth system models to better predict how terrestrial ecosystems will respond to global environmental changes.

Related to:

Hou, Enqing; Chen, Chengrong; Luo, Yiqi; Zhou, Guoyi; Kuang, Yuanwen; Zhang, Yuguang; Heenan, Marijke; Lu, Xiankai; Wen, Dazhi (2018): Effects of climate on soil phosphorus cycle and availability in natural terrestrial ecosystems. Global Change Biology, https://doi.org/10.1111/gcb.14093

Hou, Enqing; Tan, Xiang; Heenan, Marijke; Wen, Dazhi (2018): A global dataset of plant available and unavailable phosphorus in natural soils derived by Hedley method. Scientific Data, 5, 180166, https://doi.org/10.1038/sdata.2018.166

Other version:

HedleyP database

Further details:

Reference list to Soil phosphorus fractions in global natural terrestrial ecosystems

Coverage:

Median Latitude: 18.519498 * Median Longitude: 2.932587 * South-bound Latitude: -43.250000 * West-bound Longitude: -117.861000 * North-bound Latitude: 69.350000 * East-bound Longitude: 171.583300

Comment:

Version date: 2018-05-04

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Code	Code		Hou, Enqing
2	Reference/source	Reference		Hou, Enqing
3	Country	Country		Hou, Enqing
4	Site	Site		Hou, Enqing
5	LATITUDE	Latitude		Hou, Enqing	Geocode
6	LONGITUDE	Longitude		Hou, Enqing	Geocode
7	Temperature, annual mean	MAT	°C	Hou, Enqing	Origin data
8	Precipitation, annual mean	MAP	mm	Hou, Enqing	Origin data
9	ELEVATION	Elevation	m a.s.l.	Hou, Enqing	Geocode – Origin data
10	Slope	Slope		Hou, Enqing	Origin data
11	Vegetation type	Vegetation type		Hou, Enqing	Origin data
12	Stand age, description	Stand age		Hou, Enqing	Origin data
13	Parent material	Parent material		Hou, Enqing	origin data
14	Soil type	Soil type		Hou, Enqing	Origin data
15	Soil classification system	Soil class		Hou, Enqing	Origin data
16	Age, soil	Soil age	a	Hou, Enqing	Origin data
17	Comment	Comment		Hou, Enqing	Site note
18	Soil horizon	Soil hori		Hou, Enqing	Origin data
19	-	-		Hou, Enqing	First extract with water, origin data
20	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Resin, origin data
21	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Bicarbonate, origin data
22	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	First two (BicPi+W/R-Pi), origin data
23	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Bicarbonate, origin data
24	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Hydroxide, origin data
25	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Hydroxide, origin data
26	Phosphorus	P	mg/kg	Hou, Enqing	Apatite, origin data
27	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Sonic, origin data
28	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Sonic, origin data
29	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Conc.- HCl, origin data
30	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Conc. -HCl, origin data
31	Phosphorus	P	mg/kg	Hou, Enqing	Residue, origin data
32	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Total, origin data
33	Phosphorus	P	mg/kg	Hou, Enqing	Sum of P fraction, origin data
34	Phosphorus	P	mg/kg	Hou, Enqing	Total P measured separat, origin data
35	Comment	Comment		Hou, Enqing	Notes about P fractions, origin data
36	pH	pH		Hou, Enqing	Origin data
37	Carbon, organic, total	TOC	%	Hou, Enqing	Origin data
38	Nitrogen, total	TN	%	Hou, Enqing	Origin data
39	Aluminium	Al	mg/kg	Hou, Enqing	DCB-Al, origin data
40	Iron	Fe	mg/kg	Hou, Enqing	DCB-Al, origin data
41	Aluminium	Al	mg/kg	Hou, Enqing	Oxalate, origin data
42	Iron	Fe	mg/kg	Hou, Enqing	Oxalate, origin data
43	Density, dry bulk	DBD	g/cm³	Hou, Enqing	Origin data
44	Texture	Texture		Hou, Enqing	Origin data
45	Sand	Sand	%	Hou, Enqing	Origin data
46	Silt	Silt	%	Hou, Enqing	Origin data
47	Size fraction < 0.002 mm, clay	<2 µm	%	Hou, Enqing	Origin data
48	Method comment	Method comm		Hou, Enqing	For soil particle size measurement, origin data
49	Phosphorus	P	mg/kg	Hou, Enqing	Microbial biomass, origin data
50	Latitude 2	Latitude 2		Hou, Enqing	For sites without Latitude, the data is obtained from the google earth using site name
51	Longitude 2	Longitude 2		Hou, Enqing	For sites without Longitude, the data is obtained from the google earth using site name
52	Temperature, annual mean	MAT	°C	Hou, Enqing	MAT2, site mean annual tempature reported in the published studies. If no data was reported, the data was was coded from WordClim database
53	Precipitation, annual mean	MAP	mm	Hou, Enqing	MAP2, site mean annual precipitation reported in the published studies. If no data was reported, the data was was coded from WordClim database
54	Aridity index	Aridity index		Hou, Enqing	Obtained from CGIAR-CSI
55	Elevation 2	Elev2	m a.s.l.	Hou, Enqing	m a.s.l., Site altitude reported in the published studies. If no data was reported, the data was was coded from WordClim database
56	Soil type	Soil type		Hou, Enqing	Soil type2, according to USDA soil classification
57	Parent material	Parent material		Hou, Enqing	Parent material2
58	Vegetation type	Vegetation type		Hou, Enqing	Vegetation type2, grouped into big groups
59	Slope	Slope		Hou, Enqing	Slope2, slope expressed in percentage was transformed to data in degree
60	DEPTH, soil	Depth soil	m	Hou, Enqing	Geocode
61	Comment	Comment		Hou, Enqing
62	Code	Code		Hou, Enqing	Soil depth code, 0: organic layer; 1: 0-10 cm; 2: 10-20 cm; 3: >20 cm; 4: mineral soil with unclear depth; 5: unclear
63	Phosphorus	P	mg/kg	Hou, Enqing	Total P2, total, sum of P fractions. If sum of P fractions was not given or can't be calculated, then use total P concentration measured seperately.
64	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Available, sum of HCO3Pi and resin Pi/water soluble Pi, or data of HCO3 Pi from studies in which 0.5 M NaHCO3 (pH 8.5) was used as the first extract (without a step of resin extract).
65	Phosphorus, organic	P org	mg/kg	Hou, Enqing	Sum of HCO3 Po and OH Po
66	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Primary P, HCI Pi
67	Phosphorus, inorganic	P inorg	mg/kg	Hou, Enqing	Secondary P, OH Pi
68	Phosphorus	P	mg/kg	Hou, Enqing	Occluded P, TP-sum(resin P, bicP, OHP, HClP)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

32500 data points

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