نتایج جستجو برای: soil aggregation

تعداد نتایج: 245141  

This research was performed at the Natural Resources Department Research Farm of Isfahan University of Technology to investigate the effect of slag mulch on the amount of wind erosion and its threshold velocity using a wind tunnel. Soil samples from the study area “segzy plan” in the East area of Isfahan were placed in 100 by 30 cm trays to a depth of 3 cm. Four levels of coverage of slag: 25, ...

2015
Cezary Kaźmierowski Jakub Ceglarek Jerzy Cierniewski

The soil surface roughness is one of the most susceptible to variation in time and space characteristic, and depends on many variables like cultivation practices or soil aggregation. Various indices are used for its quantification, in microscale soil roughness is commonly expressed by HSD calculated from DEM of small sample area. The source of DEM can be close range photogramethry or laser scan...

2007
F. E. Gardner P. C. Reece

3) Gr£ff/ G;,W" Culture and varieties of Siamese Pummelos. Calif. Citrograph 15, 442 (1930). 4) Hagin, j.# Influence of soil aggregation on plant growth. Soil Sci. 74, 471-478 (1952). 5) Jones, W. W., Pearson, H. E.# Parker, E. R. and Huberty, M. R., Effect of sodium in fertilizer and irrigation water on concentration in leaf and root tissues of citrus trees. Proc. Am. Soc. Hort. Sci. 60, 65-70...

2016
M. Shanmukhi B. V. Ramanaiah

Wireless sensor networks (WSN) consist of several sensor nodes which sense different parameters of weather, soil, etc, and send the same to sink/base station. The sensor node has very limited battery power that is used for sensing, computing, and communication. Elimination of redundant sensed data and aggregation of nearest sensor values is necessary in order to minimize the communication overh...

Journal: :Water research 2013
Laura Chekli Sherub Phuntsho Maitreyee Roy Enzo Lombi Erica Donner Ho Kyong Shon

Iron nanoparticles are becoming increasingly popular for the treatment of contaminated soil and groundwater; however, their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate. Assessing their stability under environmental conditions is crucial for determining their environmental fate. A multi-method approach (including different size-mea...

2015
Keith R. Daly Sacha J. Mooney Malcolm J. Bennett Neil M. J. Crout Tiina Roose Saoirse R. Tracy

Understanding the dynamics of water distribution in soil is crucial for enhancing our knowledge of managing soil and water resources. The application of X-ray computed tomography (CT) to the plant and soil sciences is now well established. However, few studies have utilized the technique for visualizing water in soil pore spaces. Here this method is utilized to visualize the water in soil in si...

2017
Xuebo Zheng Jianbo Fan Lei Xu Jing Zhou

Unreasonable use of chemical fertilizer (CF) on agricultural soil leads to massive losses of soil organic carbon (SOC) and total nitrogen (TN) in tropical and subtropical areas, where soil conditions are unfavorable for aggregate formation. This study evaluated the effects of combined application of biogas slurry (BS) plus CF on soil aggregation and aggregate-associated C/N concentration and st...

2005
SABRINA E. RUSSO STUART J. DAVIES DAVID A. KING

1 Spatial distributions of tropical trees often correlate with environmental variation, suggesting that ecological sorting caused by niche differentiation may be important for maintaining species diversity. 2 Four soil types have been identified in a 52-ha forest dynamics plot in Bornean mixed dipterocarp forest (ranked by increasing fertility and moisture: sandy loam, loam, fine loam, and clay...

1998
A. C. Imeson H. Lavee A. Calvo A. Cerda

The erosional response of calcareous soils along a climatological gradient in Alicante, SE Spain was studied. The erosional response was defined in terms of indicators obtained from field rainfall simulation experiments and laboratory studies of soil aggregation. Measurements were made at seven sites on limestones and marls between Benidorm with an y1 Ž y1. annual average rainfall of 400 mm yr ...

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