Soil carbon and nitrogen recovery on semiarid Conservation Reserve Program lands

Munson, Seth M.; Lauenroth, William K.; Burke, Ingrid C.

doi:10.1016/j.jaridenv.2011.11.027

Cited by 24 publications

(20 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Carbon was generally higher on wellpads than undisturbed adjacent areas, which is contrary to most literature concerning disturbance and soil organic matter. In most other studies, disturbance resulted in a loss of soil organic matter, including carbon [6,8,11,19,31–33]. There may, however, be several factors causing higher carbon amounts on wellpads than undisturbed plots in our study.…”

Section: Discussionmentioning

confidence: 55%

“…Of the carbon lost, researchers estimate that up to 2/3 could be re-sequestered through a variety of management practices designed to increase inputs and decrease outputs [3], ultimately turning them from sources of C into sinks. The ability of SOM pools to act as sources or sinks of CO 2 depending on land use and environmental conditions has multiple implications for global change [1,6–8], and is an avenue by which responsible management can help avoid further contribution to global change.…”

Section: Introductionmentioning

confidence: 99%

“…The time needed for SOM to recover differs with the rate at which SOM associated with soil particles of different sizes is broken down; the labile pool, composed of SOM associated with coarse soil particles, is broken down relatively quickly and recovers on the scale of years to decades. The recalcitrant pool, composed of SOM associated with silt-clay particles, is broken down much more slowly and recovers on the scale of 1,000-10,000 years [6,8,29]. The constituents of SOM (organic carbon, inorganic nitrogen, and organic nitrogen) also recover at different rates, with available nitrogen generally recovering more quickly than carbon [8,30].…”

Section: Introductionmentioning

confidence: 99%

“…The constituents of SOM (organic carbon, inorganic nitrogen, and organic nitrogen) also recover at different rates, with available nitrogen generally recovering more quickly than carbon [8,30]. Furthermore, repeated soil disturbance, such as occurs during removal, stockpiling, and respreading, or such as that which occurs with cultivation, results in soil mixing, increased aeration, and, ultimately, increased SOM decomposition and macroaggregate disruption [6,8,11,19,31–33]. When combined, reduced plant inputs and increased soil disturbance result in SOM cycling out of the soil more quickly than it is incorporated, resulting in a net loss of carbon [1,33].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Reclamation is not the primary determinant of soil recovery from oil and gas development in Wyoming sagebrush systems

2019

Preprint

View full text Add to dashboard Cite

25Dryland soils store approximately 10-15% of the world's soil organic matter (SOM) to 1 m. 26Threats to carbon stocks in global dryland soils include cultivation, overgrazing, urbanization, 27 and energy development. To limit loss of carbon from these soils, it is important to understand, 28 first, how disturbances affect SOM and second, how SOM recovers after disturbance. In this 29 study, we address current gaps in our understanding of the effects of oil and gas development 30 and reclamation on SOM in the sagebrush steppe of Wyoming, a cold temperate shrub-31 dominated dryland. Most studies have found that soil disturbance, including from the respreading 32 of topsoil during wellpad reclamation, is damaging to SOM stores; however, research on ~80 33year old unreclaimed oil and gas wellpads found no difference in SOM between wellpads and 34 undisturbed sites. Using a chronosequence approach and paired study design, we evaluated the 35 effects of reclamation on SOM by comparing undisturbed sites to wellpads where reclamation 36 activities either had or had not occurred. Our results suggest that the most important factor in 37 recovery of SOM after disturbance in this area was not the presence or absence of reclamation, 38 but time since wellpad abandonment and spatial heterogeneity of plants. Further study on the 39 effectiveness of different reclamation techniques is warranted if the goal of reclamation is to aid 40 SOM recovery and prevent further C loss from these systems.

show abstract

Section: Discussionmentioning

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Reclamation is not the primary determinant of soil recovery from oil and gas development in Wyoming sagebrush systems

2019

Preprint

View full text Add to dashboard Cite

show abstract

“…This conservation reserve program (CRP) also significantly increased the soil C pool (Staben et al, 1997) and provided multiple benefits both environmentally and economically (Munson et al, 2012;Wu and Lin, 2010). Like the CRP program in the USA, a program of soil and water conservation, namely "Grain for Green" was implemented on the Loess Plateau of China in 1999 to alleviate land degradation.…”

Section: Introductionmentioning

confidence: 99%

Soil carbon sequestration by three perennial legume pastures is greater in deeper soil layers than in the surface soil

et al. 2016

View full text Add to dashboard Cite

Abstract. Soil organic carbon (SOC) plays a vital role as both a sink for and source of atmospheric carbon. Revegetation of degraded arable land in China is expected to increase soil carbon sequestration, but the role of perennial legumes on soil carbon stocks in semiarid areas has not been quantified. In this study, we assessed the effect of alfalfa (Medicago sativa L.) and two locally adapted forage legumes, bush clover (Lespedeza davurica S.) and milk vetch (Astragalus adsurgens Pall.) on the SOC concentration and SOC stock accumulated annually over a 2 m soil profile. The results showed that the concentration of SOC in the bare soil decreased slightly over the 7 years, while 7 years of legume growth substantially increased the concentration of SOC over the 0-2.0 m soil depth. Over the 7-year growth period the SOC stocks increased by 24.1, 19.9 and 14.6 Mg C ha −1 under the alfalfa, bush clover and milk vetch stands, respectively, and decreased by 4.2 Mg C ha −1 in the bare soil. The sequestration of SOC in the 1-2 m depth of the soil accounted for 79, 68 and 74 % of the SOC sequestered in the 2 m deep soil profile under alfalfa, bush clover and milk vetch, respectively. Conversion of arable land to perennial legume pasture resulted in a significant increase in SOC, particularly at soil depths below 1 m.

show abstract

Biofuel Crops and Soil Quality and Erosion

Chatskikh¹,

Овчинникова²,

Seshadri³

et al. 2013

Biofuel Crop Sustainability

View full text Add to dashboard Cite

Soil carbon and nitrogen recovery on semiarid Conservation Reserve Program lands

Cited by 24 publications

References 35 publications

Reclamation is not the primary determinant of soil recovery from oil and gas development in Wyoming sagebrush systems

Reclamation is not the primary determinant of soil recovery from oil and gas development in Wyoming sagebrush systems

Soil carbon sequestration by three perennial legume pastures is greater in deeper soil layers than in the surface soil

Biofuel Crops and Soil Quality and Erosion

Contact Info

Product

Resources

About