Soil Organic Carbon and Water Retention after Conversion of Grasslands to Pine Plantations in the Ecuadorian Andes

Farley, Kathleen A.; Kelly, Eugene F.; Hofstede, Robert

doi:10.1007/s10021-004-0047-5

Cited by 208 publications

(177 citation statements)

References 36 publications

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“…Some studies have reported no significant increase in mineral soil C content with stand age [26,50,51], while others showed increasing soil C content in the early decades after afforestation [52][53][54][55]. Here, soil C increased in the early stages after afforestation and then decreased gradually with plantation age.…”

Section: Soil C Storagementioning

confidence: 82%

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Zeng

Peng

et al. 2015

Forests

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Patterns of carbon (C) allocation across different stages of stand development in Eucalyptus urophylla × E. grandis plantations are not well understood. In this study, we examined biomass and mineral soil C content in five development stages (1, 2, 3, 4-5, and 6-8 years old) of a Eucalyptus stand in southern China. The tree biomass C pool increased with stand age and showed a high annual rate of accumulation. Stems accounted for the highest proportion of biomass C sequestered. The C pool in mineral soil increased initially after afforestation and then declined gradually, with C density decreasing with soil depth. The upper 50 cm of soil contained the majority (57%-68%) of sequestered C. The other biomass components (shrubs, herbaceous plants, litter, and fine roots) accounted for <5% of the total ecosystem C pool. Total C pools in the Eucalyptus plantation ecosystem were 112.9, 172.5, 203.8, 161.1, in the five developmental stages, respectively, with most of the C sequestered below ground. We conclude that Eucalyptus plantations have considerable biomass C sequestration potential during stand development. OPEN ACCESSForests 2015, 6 1764

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Section: Soil C Storagementioning

confidence: 82%

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Zeng

Peng

et al. 2015

Forests

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“…In addition, aboveground biomass is a major source for soil carbon through litterfall. The conversion of litter biomass to soil carbon has a certain turnover rate, suggesting a time lag between AGC and SOC (Farley et al 2004). Whereas, the time lag could be shorter in wetter areas where more available water favors litter decomposition.…”

Section: Discussionmentioning

confidence: 99%

Trade-off analyses of multiple ecosystem services by plantations along a precipitation gradient across Loess Plateau landscapes

et al. 2014

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Trade-off is defined as a situation where one ecosystem service (ES) increases while another decreases. In a broader sense, trade-off also refers to unidirectional changes with uneven paces or rates in ESs. Although trade-off analysis for multiple ESs is more integral for ecosystem assessment and management, studies regarding trade-offs are rare in the literature, especially at the landscape scale or across large environmental gradients. Here, we evaluated the co-variations of multiple ESs of black locust (Robinia pseudoacacia) plantations along a precipitation gradient (400-650 mm) on the Loess Plateau using a quantitative trade-off approach. The multiple ESs had complex relationships, with significant regional variations along the gradient. Aboveground carbon, soil organic carbon (SOC), soil total nitrogen (STN), and soil water content (SWC) showed increasing trends with precipitation, but understory plant diversity (UPD) did not. The highest trade-offs were between UPD and SWC and the lowest trade-offs were between SOC and STN among all of the ES pairs. The differences in the trade-offs of varied ES combinations could be the result of unique competition relationships, mass allocation strategies, and time lags. Stand age appeared to be another critical variable in determining the values of ESs and their trade-offs along the precipitation gradient. The decreasing SWC with stand age indicated that the gaining of the other ESs was at the cost of SWC consumption. Because multiple ESs and their trade-offs exhibit high spatial variations across the landscape, spatially explicit management is needed to maintain the benefits while mitigating negative impacts in this water-limited landscape.

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“…Direct anthropogenic impact associated with land cover change is rapidly transforming the hydrological functioning of tropical Andean ecosystems (Vanacker et al, 2003;Farley et al, 2004;Molina et al, 2012;Harden et al, 2013). The hydrological response is diverse, as changes in vegetation affect various components of the hydrological cycle including evapotranspiration (Nosetto et al, 2005), infiltration (Molina et al, 2007), and surface runoff (Bathurst et al, 2011;Restrepo et al, 2015).…”

Section: A Molina Et Al: Multidecadal Change In Streamflow Associatmentioning

confidence: 99%

Multidecadal change in streamflow associated with anthropogenic disturbances in the tropical Andes

Molina

Vanacker

Brisson

et al. 2015

Hydrol. Earth Syst. Sci.

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Abstract. Andean headwater catchments are an important source of freshwater for downstream water users. However, few long-term studies exist on the relative importance of climate change and direct anthropogenic perturbations on flow regimes in these catchments. In this paper, we assess change in streamflow based on long time series of hydrometeorological data and land cover reconstructions in the Pangor catchment (282 km 2 ) located in the tropical Andes. Three main land cover change trajectories can be distinguished during the period 1963-2009: (1) expansion of agricultural land by an area equal to 14% of the catchment area (or 39 km 2 ) in 46 years' time, (2) deforestation of native forests by 11 % (or −31 km 2 ) corresponding to a mean rate of 67 ha yr −1 , and (3) afforestation with exotic species in recent years by about 5 % (or 15 km 2 ). Over the time period 1963-2009, about 50 % of the 64 km 2 of native forests was cleared and converted to agricultural land. Given the strong temporal variability of precipitation and streamflow data related to El Niño-Southern Oscillation, we use empirical mode decomposition techniques to detrend the time series. The long-term increasing trend in rainfall is remarkably different from the observed changes in streamflow, which exhibit a decreasing trend. Hence, observed changes in streamflow are not the result of long-term change in precipitation but very likely result from anthropogenic disturbances associated with land cover change.

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Soil Organic Carbon and Water Retention after Conversion of Grasslands to Pine Plantations in the Ecuadorian Andes

Cited by 208 publications

References 36 publications

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Carbon Storage in a Eucalyptus Plantation Chronosequence in Southern China

Trade-off analyses of multiple ecosystem services by plantations along a precipitation gradient across Loess Plateau landscapes

Multidecadal change in streamflow associated with anthropogenic disturbances in the tropical Andes

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