Spatial and temporal trends in soil properties at a soil quality benchmark site in central Nova Scotia

Webb, K. T.; Wang, C.; Astatkie, Tess; Langille, D. R.

doi:10.4141/s99-104

Cited by 19 publications

(18 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The 4% reduction in SOC from 1990 to 2000 (Table 4) is less than the 8% reduction in SOC reported by Rees et al (2007) from paired benchmark site 20-NB with up-and-down slope cultivation of potato over a comparable 10-yr period and considerably less than the reductions of 8 and 16% measured over 5-yr periods reported by Webb et al (2000) and Kenney et al (2002), respectively. The soils monitored by both Webb et al (2000) and Kenney et al (2002) had higher initial SOC concentrations than our benchmark site 22-NB, which had only 17.0 g kg (1 SOC in 1990, and so they may have had greater C losses by oxidation and mineralization than from our soil.…”

Section: Resultscontrasting

confidence: 38%

“…For example, Kenney et al (2002) reported an 8% increase in available P but a 21% decrease in available K under a corn-foragepasture rotation in British Columbia. However, Webb et al (2000) reported a 13% decrease in available P over a similar 5-yr monitoring period of a corn-forage rotation in Nova Scotia. Rees et al (2007) reported initial levels (1989) of P and K of 319 and 149 mg kg…”

Section: Resultsmentioning

confidence: 99%

“…The design of the AAFC soil quality monitoring benchmark system (Wang et al 1997) has been shown to be successful. Changes in soil chemical, physical and biological properties have been identified over 5-yr periods by Webb et al (2000) in Nova Scotia (benchmark site 19-NS) under a corn-forage rotation on a site consisting of Gleyed Brunisolic Gray Luvisols (Soil Classification Working Group 1998) and Gleyed Dystric Brunisols in the Annapolis-Minas Lowlands region, and by Kenney et al (2002) in British Columbia (benchmark site 01-BC) on Orthic Humic Gleysols supporting a corn-forage-pasture rotation in the Lower Mainland ecoregion. Both research groups found changes in some sensitive soil properties, such as SOC content, even over this short a period of time.…”

Section: Yrmentioning

confidence: 99%

See 2 more Smart Citations

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Rees¹,

Chow²,

Gregorich³

2008

Can. J. Soil. Sci.

View full text Add to dashboard Cite

Concerns about deteriorating soil quality led to Agriculture and Agri-Food Canada establishing a network of 23 soil quality monitoring benchmark sites with the objective of providing a baseline data set for assessing change in soil quality and biological productivity of representative Canadian farming systems. A site (22-NB) was established in 1990 in northwestern New Brunswick to monitor changes in Podzolic and Brunisolic soils developed on coarse loamy till on a rolling landscape under intensive potato (Solanum tuberosum L.) production [potato-potato-barley (Hordeum vulgare L.) rotation] that was cultivated along the contour with variable grade diversions and a grassed waterway. Soil samples were collected in 1990 and again in 2000. Field saturated hydraulic conductivity (Kfs) at 10–20, 26–36 and 50–60 cm, earthworm counts and crop yield measurements were conducted annually. 137Cs data were collected in 1990 to estimate soil displacement at the site. Runoff and soil loss between May 01 and Nov. 30 were measured annually. The soil conservation system at site 22-NB has resulted in annual runoff and soil loss of only 9 mm and 311 kg ha-1, respectively. Measured values of 137Cs averaged 2114 Bq m-2 (70% of baseline). Changes in the Ap horizon properties between 1990 and 2000 included significant (P < 0.05) increases in available P (+ 86.7 mg kg-1) and K (+ 13.4 mg kg-1) and significant reductions in available Mg (−45.8 mg kg-1) and SOC (−0.51 g kg-1). The Kfs of 10- to 20-cm, 26- to 36-cm and 50- to 60-cm depths were 1.3, 1.0 and 1.0 cm h-1, respectively. Very few earthworms were present (0.05 worms m-2). The upper terrace was consistently the highest yielding in both potato and barley, while the lowest terrace was consistently the lowest yielding in both crops. Crop yields may have been affected by micro-climate and other soil differences as a result of site position.While the system of contour tillage with variable grade diversions and grassed waterway conserved both soil and water, the potato-potato-grain rotation did not maintain SOC levels or sustain earthworm populations. Associated heavy rates of fertilization also lead to increased levels of soil K and P. Key words: Soil quality, soil organic carbon, hydraulic conductivity, earthworms, runoff, water erosion

show abstract

Section: Resultscontrasting

confidence: 38%

Section: Resultsmentioning

confidence: 99%

Section: Yrmentioning

confidence: 99%

See 1 more Smart Citation

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Rees¹,

Chow²,

Gregorich³

2008

Can. J. Soil. Sci.

View full text Add to dashboard Cite

show abstract

“…Ploughing under of the forage rotation accounted for the increased organic matter detected at this site. Webb et al (2000) reported on the temporal changes observed at the benchmark site in Nova Scotia. During the 5-yr period from 1990 and 1995, they observed decreases in soil pH, organic C, C:N ratio, available P, and saturated hydraulic conductivity for the Ap horizon.…”

mentioning

confidence: 99%

Temporal trends in soil properties at a soil quality benchmark site in the Lower Fraser Valley, British Columbia

Kenney¹,

Hall²,

Wang³

2002

Can. J. Soil. Sci.

Self Cite

View full text Add to dashboard Cite

. 2002. Temporal trends in soil properties at a soil quality benchmark site in the Lower Fraser Valley, British Columbia. Can. J. Soil Sci. 82: 499-509. A national soil quality monitoring program was established in 1990 to address concerns that the quality of Canada's agricultural soils was in decline. The British Columbia benchmark site (01-BC) was established in 1991 and is located on the Pelly soil series (Orthic Humic Gleysol) supporting a corn-forage-pasture rotation in the Lower Mainland ecoregion. The objectives of this study were to report on the differences in: (1) the measured soil properties for the 5-yr period between baseline data collection in 1991 and resampling in 1996 and (2) the properties measured annually as indicators of soil compaction. A 25-m × 25-m grid was used at the site to locate sampling points for bulk density and collecting soil samples of the Ap, BCg, and Cg horizons, as well as the measurement locations for saturated hydraulic conductivity and penetration resistance. A 5-yr interval sampling regime was used to sample the Ap, BCg, and Cg horizons and bulk density. Saturated hydraulic conductivity and penetration resistance were sampled annually from 1992 to 1998. Between 1991 and 1996 in the A horizons, pH, available P, C:N ratio and bulk density increased by 4.6, 7.8, 2.5, and 8%, respectively, and available K, total C and total N decreased by 21, 16.5, and 18.3%, respectively. In the BCg horizon, pH, available P and C:N ratio increased by 5, 126, and 8%, respectively, and the available K and total N both decreased by 21%. Bulk density remained unchanged. The assumption that the soil chemical properties in the Cg horizon would remain stable during the study period did not hold. The trends detected for the Cg horizon were similar to those measured for the upper two horizons. However, only the reductions in available K and total N and increases in C:N were significant. The changes in the soil physical properties measured at this site indicate that some soil compaction has occurred. Both bulk density at 20 cm and penetration resistance increased at all depths between 1994 and 1998, which coincided with the time period that grazing was included in the crop rotation. Field saturated hydraulic conductivity at 25 cm (Ap2 horizon), although highly variable from year to year also tended to be lower during the pasture rotation. The penetration resistance measurements, which detected changes at all depths, appeared to be a more sensitive indicator of soil compaction than either bulk density or field saturated hydraulic conductivity.Key words: Soil quality, soil monitoring, soil properties, soil compaction, temporal change Kenney, E. A., Hall, J. W. et Wang, C. 2002. Évolution des propriétés pédologiques dans le temps à un site de contrôle de la qualité du sol dans la basse vallée du Fraser, en Colombie-Britannique. Can. J. Soil Sci. 82: 499-509. Face à la crainte d'une détérioration des sols agricoles au Canada, un programme national de contrôle de la qualité voyait le jour en 1990. L'année...

show abstract

“…In particular, as the land suitability class for cultivation of rice lowers, yield and quality vary depending on the genetic structure and maturation groups of the types and soil quality (Kun, 1985;Sürek, 1998Sürek, , 2002). Soil quality is described as the soil's ability to provide a growth medium for plants and to sustain crop productivity (Wander and Bollero, 1999;Southorn and Cattle, 2000;Webb et al, 2000). The suitability map resulting from the spatial overlay of factors in the study area is presented in Figure 3.…”

Section: Resultsmentioning

confidence: 99%

Application of a multicriteria decision-making approach for rice land suitability analysis in Turkey

Sezer¹,

Dengi̇z²

2014

Turk J Agric For

View full text Add to dashboard Cite

IntroductionOf the 1.4 × 10 9 ha of the agricultural land in the world, approximately 50% (700 × 10 6 ha) are planted with grains. Rice takes second place both in world cereal cultivation (163 × 10 6 ha; first is wheat with 215 × 10 6 ha) and in world cereal production (719.7 × 10 6 t; first is corn with 872.0 × 10 6 t) (UHK, 2013). About 91% of world rice production takes place in Asia. China ranks first in terms of rice production and is followed by India, Indonesia, and Bangladesh. Rice consumption accounts for 25% of the world's daily energy per capita. If the worldwide population growth rate continues at this rate, by 2030 rice production will have to be increased by 50% to meet both international and domestic demands (Sezer et al., 2012).Within the last decade in Turkey, the original 58,000 ha of rice cultivation has increased by 108,000 ha, and production has increased from 350,000 t to 900,000 t (Sezer et al., 2012). The Black Sea region, where this study was carried out, ranks second out of all other regions in cultivation and production with a share of 20% (UHK, 2013).Efficient management of natural resources is essential for ensuring food supplies and sustainability in agricultural development. The task of meeting demands without affecting ecological assets for future generations is important for both scientists and planners. There is an urgent need to apply the principles of sustainable production to land resources and land use and to meet the needs of society while conserving fragile ecosystems (FAO, 1993).The management and analysis of large volumes of spatial data require a geographic information system (GIS), which can be used for solving complex geographical and hydrological problems (Garg, 1991). The system is designed to allow users to collect, manage, analyze, and retrieve large volumes of spatially referenced data collected

show abstract

Spatial and temporal trends in soil properties at a soil quality benchmark site in central Nova Scotia

Cited by 19 publications

References 5 publications

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Soil and crop responses to long-term potato production at a benchmark site in northwestern New Brunswick

Temporal trends in soil properties at a soil quality benchmark site in the Lower Fraser Valley, British Columbia

Application of a multicriteria decision-making approach for rice land suitability analysis in Turkey

Contact Info

Product

Resources

About