Changes in surface water table depth and soil physical properties after harvest and establishment of loblolly pine (Pinus taeda L.) in Atlantic coastal plain wetlands of South Carolina

Xu, Y. Jun; Burger, James A.; Aust, W. Michael; Patterson, S. C.; Miwa, Masashi; Preston, David P.

doi:10.1016/s0167-1987(01)00226-4

Cited by 58 publications

(45 citation statements)

References 25 publications

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“…This difference is primarily attributed to modifyof North Carolina increased the soil bulk de fe cation of soil properties of the top layer (0 to 70 cm) during the operational silvicultural activities of shearing and bedding, and soil compaction by machinery during clear-cutting and logging [58][59][60][61][62]. Study by Grace et al [59] showed that soil compaction during harvesting of 18.5% (from 0.22 to 0.27 g·cm ) and reduced the saturated hydraulic conductivity by 79.3% (from 397 to 82 cm·hr −1 ).…”

Section: Daily Flowmentioning

confidence: 99%

“…This is considered to be a dry-weather harJanuary-April, a winter-spring harvest-treatment (during wet-weather). Several studies report significant differences in treatment effects between wet-weather and dryweather harvest treatments [61,[63][64][65]. Work by [61] demonstrates a 50% difference on elevated WTE between dry-weather (14 cm) and wet-weather (21 cm) harvest-treatment.…”

Section: Mean Treatment Effectsmentioning

confidence: 99%

“…Several studies report significant differences in treatment effects between wet-weather and dryweather harvest treatments [61,[63][64][65]. Work by [61] demonstrates a 50% difference on elevated WTE between dry-weather (14 cm) and wet-weather (21 cm) harvest-treatment. Unlike the observed 138% increase in treatment effect on daily WTE due to treatment reversal, the same treatment reversal increased the mean effect on daily flow by 33.3% (from 0.60 mm/d before reversal to 0.80 mm/d after the reversal).…”

Section: Mean Treatment Effectsmentioning

confidence: 99%

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Consistency of Hydrologic Relationships of a Paired Watershed Approach

Ssegane¹,

Amatya²,

Chescheir³

et al. 2013

AJCC

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Paired watershed studies are used around the world to evaluate and quantify effects of forest and water management practices on hydrology and water quality. The basic concept uses two neighboring watersheds (one as a control and another as a treatment), which are concurrently monitored during calibration (pre-treatment) and post-treatment periods. A statistically significant relationship between the control and treatment watersheds is established during calibration period such that any significant shift detected in the relationship during treatment is attributed to the treatment effects. The approach assumes that there is a consistent, quantifiable, and predictable relationship between watershed response variables. This study tests the hypothesis that the hydrologic relationships between control and treatment watersheds for daily water table elevation (WTE) and daily flow data were similar without any statistically significant difference during two different calibration (1988-1989 and 2007-2008) and treatment periods (1995-1996 and 2009), when the control and treatment watersheds were interchanged. The watersheds are two artificially drained loblolly pine forests (D1: 24.7 ha and D2: 23.6 ha) located in coastal North Carolina. Results depicted significantly similar WTE regression relationships during the two calibration periods but significantly different WTE relationships during the two treatment periods with reversed control and treatment watersheds. Calibration and treatment flow relationships, and the mean treatment effects on WTE and flow, before and after treatment reversal were significantly different (α = 0.05). The study also discusses causes of differences in hydrologic relationships and treatment effects for such reversal of treatments during a 21-year span of the study on these two similar and adjacent watersheds. The observed differences in the hydrologic relationships between control and treatment watersheds before and after treatment reversal may be attributed to climate or hydrologic non-stationarity which may affect the reliability of paired watershed approach especially when the calibration periods are short.

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Section: Daily Flowmentioning

confidence: 99%

Section: Mean Treatment Effectsmentioning

confidence: 99%

Section: Mean Treatment Effectsmentioning

confidence: 99%

See 1 more Smart Citation

Consistency of Hydrologic Relationships of a Paired Watershed Approach

Ssegane¹,

Amatya²,

Chescheir³

et al. 2013

AJCC

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“…Contrary to the pine trees, direct groundwater table uptake has been observed for deciduous trees in a flat and sandy area of Portugal (Mendes et al, 2016), a process that occurred through a dimorphic root system, which allows the access and use of groundwater resources (David et al, 2013) in particular during drought pe-riods (Del Castillo et al, 2016). Evapotranspiration strongly controls the groundwater storage in pine forests and, as a result, the water table generally rises after clear-cutting (Bosch and Hewlett, 1982;Sun et al, 2000;Xu et al, 2002). At our study site, drainage also significantly increased after wood harvesting due to reduced evapotranspiration, (Kowalski et al, 2003;Loustau and Guillot, 2009).…”

Section: Water Mass Balance and The Role Of Groundwater In The Hydrolmentioning

confidence: 99%

Hydro-ecological controls on dissolved carbon dynamics in groundwater and export to streams in a temperate pine forest

et al. 2018

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Abstract. We studied the export of dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) from forested shallow groundwater to first-order streams, based on groundwater and surface water sampling and hydrological data. The selected watershed was particularly convenient for such study, with a very low slope, with pine forest growing on sandy permeable podzol and with hydrology occurring exclusively through drainage of shallow groundwater (no surface runoff). A forest plot was instrumented for continuous eddy covariance measurements of precipitation, evapotranspiration, and net ecosystem exchanges of sensible and latent heat fluxes as well as CO 2 fluxes. Shallow groundwater was sampled with three piezometers located in different plots, and surface waters were sampled in six first-order streams; river discharge and drainage were modeled based on four gauging stations. On a monthly basis and on the plot scale, we found a good consistency between precipitation on the one hand and the sum of evapotranspiration, shallow groundwater storage and drainage on the other hand. DOC and DIC stocks in groundwater and exports to first-order streams varied drastically during the hydrological cycle, in relation with water table depth and amplitude. In the groundwater, DOC concentrations were maximal in winter when the water table reached the superficial organic-rich layer of the soil. In contrast, DIC (in majority excess CO 2 ) in groundwater showed maximum concentrations at low water table during late summer, concomitant with heterotrophic conditions of the forest plot. Our data also suggest that a large part of the DOC mobilized at high water table was mineralized to DIC during the following months within the groundwater itself. In firstorder streams, DOC and DIC followed an opposed seasonal trend similar to groundwater but with lower concentrations. On an annual basis, leaching of carbon to streams occurred as DIC and DOC in similar proportion, but DOC export occurred in majority during short periods of the highest water table, whereas DIC export was more constant throughout the year. Leaching of forest carbon to first-order streams represented a small portion (approximately 2 %) of the net land CO 2 sink at the plot. In addition, approximately 75 % of the DIC exported from groundwater was not found in streams, as it returned very fast to the atmosphere through CO 2 degassing.

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“…These studies suggested a change of the nutrient dynamics in forest soil and increased losses of nitrate ion and base cations from the forest soil, although time length taken for the nutrient losses after the treecutting varied among forest ecosystems. Tree-cutting in the wetlands has been conducted, and influences of not only the vegetation (Batzer et al 2000;Gale et al 1998;Spencer et al 2001) and hydrology (Sun et al 2000;Xu et al 2002), but also the chemical characteristics of soil and soil water (McLaughlin et al 1994(McLaughlin et al , 1996(McLaughlin et al , 2000Westbrook and Devito 2004) have been evaluated. However, these tree-cutting studies on soil chemistry in wetlands were limited and were mainly conducted for the evaluation of soil fertility in managed systems.…”

Section: Introductionmentioning

confidence: 99%

Changes in nitrogen and base cation concentrations in soil water due to the tree cutting in a wetland alder forest in the Kushiro Wetland, northern Japan

et al. 2011

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As part of the Kushiro Wetland Restoration Project, we evaluated the effect of the tree-cutting (February 2003) on soil water chemistry for 3 years in an alder (Alnus japonica) shrubland on the peat soil in the Kushiro Wetland, the largest wetland in Japan. The alder stand was divided into two types; low stature and high stature stands, mean heights being 1.5 and 2.6 m, respectively. The treatment plot with tree cutting and the reference plot measuring 25 m 9 25 m each were established in both stands, and a soil incubation experiment was also conducted by trenching the root zone of wetland vegetation in the treatment plots in both stands in the summer of 2004. The tree cutting did not substantially increase the concentrations of ammonium ion (NH 4 ? ) and nitrate ion (NO 3 -) in the soil water, although a gradual and slight increase of NO 3 -concentration was found after the tree-cutting only in the high stature stand (\10 lmol/l). This increase in the NO 3 -concentration in the high stature stand was probably due to the rhizosphere oxidation of wetland herbaceous vegetation, and was accompanied by the increase of Ca 2? concentration. The soil incubation experiment showed no significant change of the nitrogen concentration, suggesting that inorganic nitrogen was immobilized and NO 3 -was denitrified intensively in this wetland peat soil. The results of this study suggested that this wetland ecosystem had a high potential to stabilize the soil water chemistry.

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Changes in surface water table depth and soil physical properties after harvest and establishment of loblolly pine (Pinus taeda L.) in Atlantic coastal plain wetlands of South Carolina

Cited by 58 publications

References 25 publications

Consistency of Hydrologic Relationships of a Paired Watershed Approach

Consistency of Hydrologic Relationships of a Paired Watershed Approach

Hydro-ecological controls on dissolved carbon dynamics in groundwater and export to streams in a temperate pine forest

Changes in nitrogen and base cation concentrations in soil water due to the tree cutting in a wetland alder forest in the Kushiro Wetland, northern Japan

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