Large topsoil organic carbon variability is controlled by Andisol properties and effectively assessed by VNIR spectroscopy in a coffee agroforestry system of Costa Rica (Record no. 57301)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03164nab a22003617a 4500 |
| 001 - CONTROL NUMBER | |
| control field | 57301 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20220823203051.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160121s2016\\\\xxu|||p|op|||\00|\0\eng\d |
| 024 8# - OTHER STANDARD IDENTIFIER | |
| Standard number or code | https://doi.org/10.1016/j.geoderma.2015.08.02 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2600 |
| Personal name | Kinoshita, R. |
| 245 10 - TITLE STATEMENT | |
| Title | Large topsoil organic carbon variability is controlled by Andisol properties and effectively assessed by VNIR spectroscopy in a coffee agroforestry system of Costa Rica |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | Amsterdam (Netherlands) : |
| Name of publisher, distributor, etc. | Elsevier, |
| Date of publication, distribution, etc. | 2016. |
| 500 ## - GENERAL NOTE | |
| General note | Peer review |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Assessing the spatial variability of soil organic carbon (SOC) is crucial for SOC monitoring and comparing management options. Topsoil (0–5 cm) SOC concentrations were surveyed in a coffee agroforestry watershed (0.9 km2) on Andisols in Costa Rica with uniform farm management.We encountered high values and large spatial variations of SOC, from 48.1 to 172 g kg−1 in the dry combustion set (SOCref; n=72) used for calibrating the visible-near-infrared reflectance spectroscopy (VNIRS) samples (SOCVNIRS; 350–2500nm; n=520). VNIRS using partial least squares regression was effective in predicting SOC (R2 =0.85; a root mean square error (RMSE)= 12.3 g kg−1) and proved an effective proxymeasurement.Weassessed several topographic, vegetation and andic soil property variables, of which only the latter (metal–humus complexes and allophanes) displayed strong correlations with SOCref concentrations. We compared Random Forest and three geostatistical approaches for the interpolation of SOC in unsampled locations. Ordinary kriging with SOCref yielded an RMSE of 28.0 g kg−1. Random Forest was successful in incorporating many weakly and non-linearly correlated covariates with SOC (RMSE = 14.7 g kg−1), provided Alp (the sodium pyrophosphate extractable aluminum), the best predictor of SOC (r = 0.85) but also the most costly variable to acquire. Co-kriging with Alp also showed high reduction in RMSE (16.0 g kg−1). Co-kriging with SOCVNIRS only showed marginal reduction in RMSE to 24.2 g kg−1 due to the presence of a high nugget effect. Local variability of SOC in this volcanic agroforestry watershed was dominated by andic properties whereas topographic or vegetation variables had very little impact. Estimation of SOC variability is recommended using inexpensive proxy measurements like VNIRS (RMSE=12.3 g kg−1) rather than spatial interpolation techniques. |
| 526 ## - STUDY PROGRAM INFORMATION NOTE | |
| Title point value | Non-CRP |
| 536 ## - FUNDING INFORMATION NOTE | |
| Text of note | Socioeconomics Program |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in english |
| 594 ## - STAFFID | |
| StaffID | I1706151 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| 9 (RLIN) | 2601 |
| Topical term or geographic name as entry element | Carbon |
| Source of heading or term | AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| 9 (RLIN) | 2602 |
| Topical term or geographic name as entry element | Spectroscopy |
| Source of heading or term | AGROVOC |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2603 |
| Personal name | Roupsard, O. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2604 |
| Personal name | Chevallier, T. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2605 |
| Personal name | Albrecht, A. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2606 |
| Personal name | Taugourdeau, S. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 809 |
| Personal name | Zia Ahmed |
| Field link and sequence number | I1706151 |
| Miscellaneous information | Socioeconomics Program |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 2607 |
| Personal name | van Es, H.M. |
| 773 0# - HOST ITEM ENTRY | |
| Title | Geoderma |
| Record control number | 72620 |
| Place, publisher, and date of publication | Amsterdam (Netherlands) : Elsevier, 2016. |
| International Standard Serial Number | 0016-7061 |
| Related parts | v. 262, p. 254-265 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS | |
| Link text | Access only for CIMMYT Staff |
| Uniform Resource Identifier | https://hdl.handle.net/20.500.12665/1147 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Article |
| Suppress in OPAC | No |
| Date last seen | Total Checkouts | Price effective from | Koha item type | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 01/21/2016 | 01/21/2016 | Article | Not Lost | Dewey Decimal Classification | CIMMYT Staff Publications Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 01/21/2016 |