| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Unit of Biometry (Agro/Biom)
Unit of Microbiology (Agro/Mbla), Faculty of Agronomic Sciences, Catholic Univ. of Louvain, Place Croix du Sud, 2 B-1348 Louvain-la-Neuve, Belgium
*Corresponding author.
ABSTRACT
To assist N-fertilization planning and to avoid N-pollution problems, an evaluation of soil N-mineralization ability is imperative. In addition to the accuracy of that evaluation under laboratory conditions, knowledge of its spatial and temporal variation is helpful for further data analyses. This study aimed to characterize the spatial variation of soil mineralizable N, to investigate its spatial relation with five basic soil properties (oxidizable C, pH, electrical conductivity, exchangeable NH+4, and gravimetric water content), and to examine the changes in the spatial patterns and correlation structures during the winter. In October and April 1989, 73 samples were collected from spots 1 to 57 m apart in a long-term fallow plot. Nitrogen-mineralization ability was measured through an anaerobic incubation experiment. The study of scale-dependent correlation structures and spatial patterns was carried out through a multivariate geostatistical analysis. The mean and standard deviation of most properties studied changed slightly during the winter. Nitrogen-mineralization ability was mainly explained by the amount of oxidizable C, which appeared to be well correlated with gravimetric water content. The spatial structure of all soil properties measured was characterized by large variation at small distances (<1 m) and by the independence of the observations beyond 12 m. In addition, most of the spatial patterns showed a temporal persistence, i.e., high and low values generally occurred at the same locations before and after winter.
Received for publication December 5, 1991.
This article has been cited by other articles:
|
|
 |
|
  H. Lin Temporal Stability of Soil Moisture Spatial Pattern and Subsurface Preferential Flow Pathways in the Shale Hills Catchment Vadose Zone J., January 1, 2006; 5(1): 317 - 340. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. L. Ruffo, G. A. Bollero, R. G. Hoeft, and D. G. Bullock Spatial Variability of the Illinois Soil Nitrogen Test: Implications for Soil Sampling Agron. J., October 19, 2005; 97(6): 1485 - 1492. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Shahandeh, A. L. Wright, F. M. Hons, and R. J. Lascano Spatial and Temporal Variation of Soil Nitrogen Parameters Related to Soil Texture and Corn Yield Agron. J., April 27, 2005; 97(3): 772 - 782. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Ya. A. Pachepsky, A. K. Guber, and D. Jacques TEMPORAL PERSISTENCE IN VERTICAL DISTRIBUTIONS OF SOIL MOISTURE CONTENTS Soil Sci. Soc. Am. J., March 1, 2005; 69(2): 347 - 352. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. S. Dharmakeerthi, B. D. Kay, and E. G. Beauchamp Factors Contributing to Changes in Plant Available Nitrogen across a Variable Landscape Soil Sci. Soc. Am. J., March 1, 2005; 69(2): 453 - 462. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Martinez-Fernandez and A. Ceballos Temporal Stability of Soil Moisture in a Large-Field Experiment in Spain Soil Sci. Soc. Am. J., November 1, 2003; 67(6): 1647 - 1656. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R.S. Van Pelt and P. J. Wierenga Temporal Stability of Spatially Measured Soil Matric Potential Probability Density Function Soil Sci. Soc. Am. J., May 1, 2001; 65(3): 668 - 677. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Vadose Zone Journal | Journal of Plant Registrations | ||||
| Journal of Natural Resources and Life Sciences Education |
Journal of Environmental Quality |
||||
