Spatial patterns of inorganic N, P availability, and organic C in relation to soil disturbance: a chronosequence analysis

Boerner, Ralph E. J.; Scherzer, Amy J.; Brinkman, Jennifer A.

doi:10.1016/s0929-1393(97)00037-1

Cited by 49 publications

(31 citation statements)

References 19 publications

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“…Upon initial disturbance such as conventional tillage, SOM and SOC contents decrease but they increase over time in absence of disturbance (Kern and Johnson 1993;Quincke et al 2007). Boerner et al (1998) measured SOC in a recently disturbed soybean field, 5-10 years old field and relatively undisturbed prairie and found that SOC increased over time after disturbance. Richter et al (1999) reported rapid accumulation of soil C after the re-establishment of forest.…”

Section: Discussionmentioning

confidence: 99%

Differences in soil chemical properties with distance to roads and age of development in urban areas

et al. 2010

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The main objective of this study was to characterize variation in soil chemical properties with length of urbanization period and distance to roads. Urban boundaries from 1920's (old), 1960's (middle) and 2000's (new) were identified for three cities in northeast Ohio: Massillon, Wooster and Canton. Within each identified historic boundary, soil samples were collected from two road-side and two interior lawns in one public school site in each city. Thus, there were three urban age and two distance-to-roads classes. Soil particle composition and basic chemical properties including pH, available phosphorus (P), exchangeable potassium (K), calcium (Ca), magnesium (Mg), cation exchange capacity (CEC), nitrate, total carbon (C), total nitrogen (N), and soil organic matter (SOM) were measured. Two notable spatio-temporal patterns appeared repeatedly in the data set. First, total C, total N and SOM were higher in the soils of old (>50 years) urban sites than of newly developed sites. Similar, but not always significant, trends in soil pH, and exchangeable Ca were also observed. Second, road-side soils had higher pH, Ca, total C and N than interior sites regardless of urban age. These data indicate that key soil chemical properties can vary in predictable ways with urban age and distance-to-roads classes. Such variations in key soil chemical properties may influence or reflect soil biota and biogeochemical processes in urban soils.

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Section: Discussionmentioning

confidence: 99%

Differences in soil chemical properties with distance to roads and age of development in urban areas

et al. 2010

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“…The proportion of the total variance that can be attributed to the spatial autocorrelation is called the structural variance (C) and is the difference between sill and nugget variance. C/[C + C 0 ] ratio is used to assess indicative values of the structural variance [11,42,43]. When it reaches 1, the whole sample variance is spatially dependent.…”

Section: Geostatisticsmentioning

confidence: 99%

Variability and heterogeneity of humus forms at stand level: Comparison between pure beech and mixed beech-hornbeam forest

et al. 2006

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-We investigate the influence of tree canopy composition on humus form variability and heterogeneity by comparing a pure beech stand and a mixed beech-hornbeam one (70% beech and 30% hornbeam). Macro-morphological humus form descriptors were recorded using a spatially explicit sample design at stand level. Leaf litter composition and light intensity accounting for stand management as well as bulk density for harvesting practices (soil compaction) were also recorded. A multiple correspondence analysis (MCA) and geostatistics were used to assess humus form variability and heterogeneity, as well as the spatial correlation between stand characteristics and humus forms. Humus form variability and activity were greater under the mixed stand than under the pure one. Geostatistics revealed that humus form patchiness was greater under the mixed stand than under the pure one and the improvement in decomposition processes seemed to be confined to spatial distribution of hornbeam litterfall. From a practical viewpoint, these results could provide ideas on the way of mixing tree species at stand level. We assume that with a given percentage of mull-forming tree species, a dispersed tree mixture provides a more extensive improvement than a clumped mixture.

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“…These practices substantially restructure spatial heterogeneity of soil biological, chemical, and physical features at a variety of spatial scales (Robertson et al, 1993;Boerner et al, 1998;Bruckner et al, 1999;Fraterrigo et al, 2005;Guo et al, 2007). The altered spatial variation of soil resources is likely to affect the local distribution and abundance of plant species and the performance of individual plants and microorganisms and, therefore, to have consequences for both community structure and ecosystem-level processes (Tilman, 1988;Robertson and Gross, 1994;Schlesinger et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Effects of land-use history on soil spatial heterogeneity of macro- and trace elements in the Southern Piedmont USA

Richter

Mendoza

et al. 2010

Geoderma

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Spatial patterns of inorganic N, P availability, and organic C in relation to soil disturbance: a chronosequence analysis

Cited by 49 publications

References 19 publications

Differences in soil chemical properties with distance to roads and age of development in urban areas

Differences in soil chemical properties with distance to roads and age of development in urban areas

Variability and heterogeneity of humus forms at stand level: Comparison between pure beech and mixed beech-hornbeam forest

Effects of land-use history on soil spatial heterogeneity of macro- and trace elements in the Southern Piedmont USA

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