Plant and soil responses to a commercial blue-green algae inoculant

Tiedemann, Arthur R.; Lopushinsky, W.; Larsen, Harold J.

doi:10.1016/0038-0717(80)90082-6

Cited by 18 publications

(8 citation statements)

References 10 publications

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“…Our results agree with those of experimental results obtained in greenhouse studies (Acea et al, 2003;Nisha et al, 2007), which showed that algal inoculation increased organic C and total N of the soil, but decreased soil bulk density. However, Tiedemann et al (1980) reported that cyanobacterial inoculation had no effect on the total C and total organic N. Changes of values of total N and C/N are not consistent with those of Nisha et al (2007), who suggests these two parameters continuously change with the recovery time. It can be seen from Table 5 that herbaceous and subshrub cover increased with increasing recovery time among the eight cyanobacterial inoculation treatments.…”

Section: Microcoleus Vaginatusmentioning

confidence: 92%

“…Much interest has been focused on the effects of cyanobacterial inoculation on arid and semiarid soils (Tiedemann et al, 1980;Belnap, 1993;Buttars et al, 1994Buttars et al, , 1998De Caire et al, 2000;Acea et al, 2001Acea et al, , 2003Davidson et al, 2002;Maestre et al, 2006;Nisha et al, 2007). However, the large majority of these studies were carried out on experimental conditions while field applications have not yet been successful; it was presumed that using inoculants for even moderately large disturbances is not feasible now, or in the near future (Belnap, 2003).…”

mentioning

confidence: 99%

“…M. vaginatus and S. javanicum still were the dominant species and subdominant species, respectively. Tiedemann et al (1980) noted that one chlorella was the most prominent species and Phormidium sp. was dominant on the soil surface at the end of the 20 weeks' cyanobacterial inoculation experiment.…”

mentioning

confidence: 99%

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Feasibility of cyanobacterial inoculation for biological soil crusts formation in desert area

Wang

Liu

et al. 2009

Soil Biology and Biochemistry

174

111

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Section: Microcoleus Vaginatusmentioning

confidence: 92%

mentioning

confidence: 99%

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Feasibility of cyanobacterial inoculation for biological soil crusts formation in desert area

Wang

Liu

et al. 2009

Soil Biology and Biochemistry

174

111

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“…Since recovery time depends on the presence of a nearby inoculant, larger disturbed areas will take longer to recover. Several studies have shown that inoculation can hasten the biological recovery of disturbed crusts (Tidemann et at., 1980;Ashley and Rushforth, 1984;Belnap, 1993).…”

Section: Recovery From Surface Disturbancementioning

confidence: 98%

Surface Disturbances: Their Role in Accelerating Desertification

Belnap¹

1995

Desertification in Developed Countries

115

159

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Abstract. Maintaining soil stability and normal water and nutrient cycles in desert systems is critical to avoiding desertification. These particular ecosystem processes are threatened by trampling of livestock and people, and by off-road vehicle use. Soil compaction and disruption of cryptobiotic soil surfaces (composed of cyanobacteria, lichens, and mosses) can result in decreased water availability to vascular plants through decreased water infiltration and increased albedo with possible decreased precipitation. Surface disturbance may also cause accelerated soil loss through wind and water erosion and decreased diversity and abundance of soil biota. In addition, nutrient cycles can be altered through lowered nitrogen and carbon inputs and slowed decomposition of soil organic matter, resulting in lower nutrient levels in associated vascular plants. Some cold desert systems may be especially susceptible to these disruptions due to the paucity of surface-rooting vascular plants for soil stabilization, fewer nitrogen-fixing higher plants, and lower soil temperatures, which slow nutrient cycles. Desert soils may recover slowly from surface disturbances, resulting in increased vulnerability to desertification. Recovery from compaction and decreased soil stability is estimated to take several hundred years. Re-establishment rates for soil bacterial and fungal populations are not known. The nitrogen fixation capability of soil requires at least 50 years to recover. Recovery of crusts can be hampered by large amounts of moving sediment, and re-establishment can be extremely difficult in some areas. Given the sensitivity of these resources and slow recovery times, desertification threatens million of hectares of semiarid lands in the United States.

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“…Delays in recovery are clearly due in part to intrinsically low growth rates of constituent species. However, as shown by inoculant experiments (Lewin 1977, Tidemann et al 1980, Ashley and Rushforth 1984, St. Clair et al 1986, Belnap 1993, recovery can also be slowed by poor propagule dispersal. Additionally, colonization by late-arriving species could depend on significant site alteration by early colonists, though virtually nothing is known about this aspect of the reestablishment of healthy crusts.…”

Section: Introductionmentioning

confidence: 99%

Treatment Effects on Performance of N-Fixing Lichens in Disturbed Soil Crusts of the Colorado Plateau

Davidson¹,

Bowker²,

George³

et al. 2002

Ecological Applications

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Biological soil crusts arrest soil erosion and supply nitrogen to arid ecosystems. To understand their recovery from disturbance, we studied performances of Collema spp. lichens relative to four experimental treatments plus microtopography of soil pedicels, oriented north-northwest to south-southeast in crusts. At sites in Needles (NDLS) and Island in the Sky (ISKY) districts of Canyonlands National Park, lichens were transplanted to NNW, SSE, ENE, WSW, and TOP pedicel faces and exposed to a full-factorial, randomized block experiment with four treatments: nutrient addition (P and K), soil stabilization with polyacrylamide resin (PAM), added cyanobacterial fiber, and biweekly watering.After 14.5 mo (NDLS) and 24 mo (ISKY), both visual rankings of lichen condition and measures of chlorophyll fluorescence were generally higher at ISKY than on more fertile but less stable soils at NDLS. On ENE and NNW pedicel faces, both these values and nitrogenase activity (NDLS only) exceeded corresponding values on WSW and SSE faces. Treatment effects were site specific and largely negative at NDLS; both nutrient and cyanobacterial addition led to poorer lichen condition, and added nutrients led to reduced fluorescence. Responses to nutrients may have been mediated partly by disturbance of unstable soils and by competition with cyanobacteria.In a separate experiment investigating recruitment responses to adding fungal spores or Nostoc cells, rates of Collema establishment responded significantly to the former but not the latter. Low establishment overall suggests that natural recruitment may occur mainly from iscidia or thallus fragments, not spores.Measured simultaneously on artificial soil pedicels at NDLS and ISKY, both deposition and erosion declined at NDLS across the four pedicel microaspects as: WSW Ͼ SSE Ͼ NNW Ͼ ENE (or ENE Ͼ NNW), during fall and spring trials. Patterns were similar at ISKY, but WSW ഠ SSE for spring deposition, and deposition did not differ by microaspect in fall. Greater deposition at ISKY, despite higher abundance of cyanobacteria, may be explained by stronger wind velocities.Together, microtopographic differences in erosion, microclimate, and nutrient regimes help explain variable lichen performance, but microtopography influenced lichen performance more consistently than did any treatment. Demonstrated effects of pedicel development in crust recovery concur with prior surveys showing greatest microbial biomass and/or cover on ENE and NNW exposures at various spatial scales.

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Plant and soil responses to a commercial blue-green algae inoculant

Cited by 18 publications

References 10 publications

Feasibility of cyanobacterial inoculation for biological soil crusts formation in desert area

Feasibility of cyanobacterial inoculation for biological soil crusts formation in desert area

Surface Disturbances: Their Role in Accelerating Desertification

Treatment Effects on Performance of N-Fixing Lichens in Disturbed Soil Crusts of the Colorado Plateau

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