Influence of grazing on soil water and gas fluxes of two Inner Mongolian steppe ecosystems

Reszkowska, Agnieszka; Krümmelbein, Julia; Gan, Lei; Peth, Stephan; Horn, Rainer

doi:10.1016/j.still.2010.10.003

Cited by 41 publications

(37 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…). Figure 4 illustrates C 2 and C 3 values for individual samples of the tested treatments and relates them to the classes of k a as schematically introduced by Reszkowska et al (). Here, a differentiation between both treatments becomes clearer by pore continuities classified as “very high” for most of CaO samples (75%) in contrast to NIL and REF samples which represented C 2 values from “very low” to “high” range.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Changes in soil aeration and soil respiration of simulated grave soils after quicklime application

Mordhorst

Zimmermann

Fleige

et al. 2017

J. Plant Nutr. Soil Sci.

Self Cite

View full text Add to dashboard Cite

The decomposition of buried human remains on cemeteries can be delayed in poorly aerated graves due to high water levels and a low permeable pore system for oxygen and water transport. With aim to improve the soil aeration properties in the burial environment, the addition of quicklime (CaO) to the grave backfill was tested. Quicklime is expected to promote a stronger aggregation and stabilization of the backfilled soil mainly by forcing an immediate dehydration and particle cementation processes. Two different grave simulations (without buried corpses) were prepared: (1) mixing the grave backfill with 20 kg m−3 quicklime (“CaO”) and (2) backfill without CaO (“NIL”) on a cemetery in Northern Germany. The soil type was a Terric Anthrosol (Stagnic) with a loamy sand texture. Undisturbed soil cores were taken from two depths before and after excavation and backfill at regular intervals of 3 months in order to analyze changes in (1) gaseous transport functions expressed by air‐filled porosity, air permeability (air permeameter), gas diffusivity (double chamber method) and related pore continuity indices as well as in (2) soil respiration (alkali trap method) representing microbial activity. Results clearly demonstrated a more conductive pore system in the CaO variant reflected by higher gas diffusivity and air permeability over 1 year compared to the NIL variant. Pore continuity indices also indicated a more connective pore system for the CaO variant. Effects of CaO application on soil respiration rate differed between the quarterly sampling times. Results indicated that microorganism were still active under alkaline soil conditions induced by CaO application, but the quantitative determination of biologically produced CO2 is influenced by chemical reactions when hydrated quicklime [Ca(OH)2] was reformed to limestone under consumption of CO2. The experiments indicate that the application of quicklime is a promising approach to improve aeration properties of grave soils and is therefore proposed as an adequate method to improve the aeration of burials on cemeteries.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Furthermore, Ball et al () defined three continuity indices ( C 1 , C 2 , C 3 ) [Eqs. (3), (4), (5)] based on the formulations of Groenevelt et al () and further used, e.g ., by Reszkowska et al (), Dörner et al () or Uteau et al ().

true C_{1} = \frac{D_{s}}{D_{0} θ_{a}},

true C_{2} = \frac{k_{a}}{θ_{a}},

true C_{3} = \frac{k_{a}}{{θ_{a}}^{2}} .

…”

Section: Methodsmentioning

confidence: 95%

Changes in soil aeration and soil respiration of simulated grave soils after quicklime application

Mordhorst

Zimmermann

Fleige

et al. 2017

J. Plant Nutr. Soil Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Radford et al (2009), Betteridge et al (1999, and Broersma et al (1999) have reported increased soil compaction with high grazing intensity caused by the mechanical stress exerted on soil by grazing animals (Zhou et al 2010). Both Rezkowska et al (2011a) as well as Krümmelbein et al (2009) reported that grazing of semi-arid steppe soils also reduced soil water pore volume and saturated soil hydraulic conductivity. The reduced soil hydraulic conductivity was attributed to destruction of macropores (Reszkowska et al 2011b).…”

Section: Discussionmentioning

confidence: 96%

Groundwater recharge rates and surface runoff response to land use and land cover changes in semi-arid environments

et al. 2016

View full text Add to dashboard Cite

The effects of land use and land cover (LULC) on groundwater recharge and surface runoff and how these are affected by LULC changes are of interest for sustainable water resources management. However, there is limited quantitative evidence on how changes to LULC in semi-arid tropical and subtropical regions affect the subsurface components of the hydrologic cycle, particularly groundwater recharge. Effective water resource management in these regions requires conclusive evidence and understanding of the effects of LULC changes on groundwater recharge and surface runoff. We reviewed a total of 27 studies (2 modeling and 25 experimental), which reported on pre-and post land use change groundwater recharge or surface runoff magnitude, and thus allowed to quantify the response of groundwater recharge rates and runoff to LULC. Comparisons between initial and subsequent LULC indicate that forests have lower groundwater recharge rates and runoff than the other investigated land uses in semi-arid tropical/ subtropical regions. Restoration of bare land induces a decrease in groundwater recharge from 42% of precipitation to between 6 and 12% depending on the final LULC. If forests are cleared for rangelands, groundwater recharge increases by 7.8 ± 12.6%, while conversion to cropland or grassland results in increases of 3.4 ± 2.5 and 4.4 ± 3.3%, respectively. Rehabilitation of bare land to cropland results in surface runoff reductions of between 5.2 and 7.3%. The conversion of forest vegetation to managed LULC shows an increase in surface runoff from 1 to 14.1% depending on the final LULC. Surface runoff was reduced from 2.5 to 1.1% when grassland is converted to forest vegetation. While there is general consistency in the results from the selected case studies, we conclude that there are few experimental studies that have been conducted in tropical and subtropical semi-arid regions, despite that many people rely heavily on groundwater for their livelihoods. Therefore, there is an urgent need to increase the body of quantitative evidence given the pressure of growing human population and climate change on water resources in the region.

show abstract

“…Soil compaction influences pore size distribution, its geometry, gas and water fluxes and, consequently, plant growth (Lipiec and Hatano, 2003;Dexter et al, 2008). In general, soil compaction decreases the contribution of large pores, total porosity, increases that of fine pores, and affects the pore continuity and the anisotropy of fluxes (Wójciga et al, 2009;Reszkowska et al, 2011). Agricultural machinery traffic can form an anisotropic soil pore system due to simultaneous movement of aggregates or particles forward and downwards and wheel slippage (Pagliai et al, 2003;Peng and Horn, 2008;Horn and Peth, 2011).…”

Section: Soil Compactionmentioning

confidence: 99%

Agrophysics - physics in agriculture and environment

Gliński¹,

Horabik²,

Lipiec³

2013

Soil Science Annual

View full text Add to dashboard Cite

Agrophysics is one of the branches of natural sciences dealing with the application of physics in agriculture and environment. It plays an important role in the limitation of hazards to agricultural objects (soils, plants, agricultural products and foods) and to the environment. Soil physical degradation, gas production in soils and emission to the atmosphere, physical properties of plant materials influencing their technological and nutritional values and crop losses are examples of such hazards. Agrophysical knowledge can be helpful in evaluating and improving the quality of soils and agricultural products as well as the technological processes.

show abstract

Influence of grazing on soil water and gas fluxes of two Inner Mongolian steppe ecosystems

Cited by 41 publications

References 31 publications

Changes in soil aeration and soil respiration of simulated grave soils after quicklime application

Changes in soil aeration and soil respiration of simulated grave soils after quicklime application

Groundwater recharge rates and surface runoff response to land use and land cover changes in semi-arid environments

Agrophysics - physics in agriculture and environment

Contact Info

Product

Resources

About