Landscape attributes and first layer actual soil volume (Record no. 61945)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02443nam a2200217Ia 4500 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Rao D V K N |
| 245 #0 - TITLE STATEMENT | |
| Title | Landscape attributes and first layer actual soil volume |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Name of publisher | Journal of the Indian Society of Soil Science |
| Year of publication | 2011 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | 13-Jun |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc | Available literature shows that rubber (Hevea brasiliensis) is a surface feeder and 55-60;of fine roots are accommodated within top 10 cm depth of soil and more than 80;within top 30 cm depth. Because of this the impact of the first layer effective soil volume (FLESV) on growth and yield is conspicuously significant. However, FLESV cannot be taken as a constant because it can vary with pore space. Hence, it is necessary to understand variability in the first layer actual soil volume (FLASV) in a given landscape. Eleven soil samples collected from first mineral layer exposed at top, middle and bottom slope positions on different hills in a research farm growing rubber were characterized. Analysis revealed that slope class significantly influenced some physical properties like FLASV (p = 0.026, adjusted R2 = 0.496), sand (p=0.002, adjusted R2 = 0.744), clay (p = 0.002. adjusted R 2 = 0.732). Slope class also influenced some chemical properties like CEC (p = 0.045, adjusted R2 = 0.424) and exchangeable potassium (p = 0.023, adjusted R2 = 0.512) indicating the role of slope. Similarly, the regression of FLASV on slope and first layer thickness (FLT) was significant in and equation FLASV = 0.077-1.081**slope + 0.959**FLT - 0.149FLCF which was good (p = 0.007) that described 72;of variability in FLASV. Although another landscape attribute, elevation was included in the model it did not describe variability in significant terms. The cross section of slope along diffeernt directions passing through a single point indicated that probable inclusion of other landscape attributes like relief, profile curvature, slope length, specific catchment area, specific dispersal area may add more to the understanding of the geographical landscape and resultant soil properties in further studies. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | First layer actual soil volume |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | First layer coarse fragments |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | First layer effective soil volume |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | First layer thickness |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Landscape attributes |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Slope |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Lakshmanan R |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Vijayakumaran Nair P |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Journals |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Serial Enumeration / chronology | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Journals | RRII Library | RRII Library | Agronomy | 05/08/2011 | Volume 59, Issue 1 | Journals |