The vertical and horizontal distribution of roots in northern hardwood stands of varying age (Record no. 49102)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02101nam a2200193Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625153950.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-14918 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | The vertical and horizontal distribution of roots in northern hardwood stands of varying age |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Can. J. For. Res., 36, p.450-459, 2006 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | Coring methods cannot reveal the distribution of roots with depth in rocky soil, and fine roots are typically sampled without regard to the location of trees. We used quantitative soil pits to describe rooting patterns with soil depth and distance to trees in northern hardwood stands. We sited three 0.5 m 2 quantitative soil pits in each of three young (19-27 years)and three older (56-69 years)stands developed after clear-cutting. Live roots were divided into diameter classes delimited at 0.5, 1, 2, 5, 10, 20, and 100 mm; dead roots were not distinguished by size. Mean total live-root biomass was 2900 ± 500 g·m -2 in older stands and 1500 ± 400 g·m-2 in young stands. The root mass in the 2-20 mm class was 2.7 times greater in the older stands (p= 0.03); fine-root (<2 mm)biomass was 1.5 times greater (p= 0.12), suggesting that fine-root biomass continues to increase past the age of canopy closure in this forest type. Root biomass density declined with soil depth, with the finest roots (<0.5 mm)declining most steeply; roots were found at low densities well into the C horizon. We analyzed root biomass density as a function of the influence of nearby trees (represented as the sum of basal area divided by the distance from the pit)and found that fine as well as coarse roots reflected this influence. In systems where this is the case, root measurements should be made with atten-tion to patterns of tree distribution. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yanai, R.D. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Park, B.B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hamburg, S.P. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1CEBisr_rxRFf3DN-o-4UKlUZUrt56kFt/view?usp=drivesdk">https://drive.google.com/file/d/1CEBisr_rxRFf3DN-o-4UKlUZUrt56kFt/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-14918 | 25.06.2025 | 25.06.2025 | Documentos solicitados |