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Berninger, Frank; Eduardo, Salas

doi:10.1023/a:1022910310082

Cited by 18 publications

(2 citation statements)

References 16 publications

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“…In addition, factors such as root activity and density per area, the presence of mycorrhizal fungi, availability of C substrates for microbial biomass, nitrogen content, organic matter content, and other soil physical and chemical properties also influence soil CO 2 emissions (Lohila et al 2003;Xu et al 2006;Dube et al 2009). In accordance with Villanueva-López et al (2014), in this zone, soil pH and bulk density were higher in the systems with live fences (LF) than in the livestock systems in grass monoculture (GM) ( Table 1), indicating that the presence of G. sepium trees in the systems with live fences (LF) may have improved bulk density and soil pH, probably through an increase in leaf litter entering the system as reported by Berninger and Salas (2003), Eldridge and Wong (2005), and Villanueva-López et al (2014). However, our results show that there were no significant differences in soil CO 2 emissions between systems, and they show the same trend as the content of organic matter (Table 1), suggesting that improved physical and chemical soil properties do not necessarily result in higher soil CO 2 emissions, while the lower contents of organic matter (Table 1) in the livestock systems in grass monoculture (GM), due to the absence of trees, may have resulted in emissions being more sensitive to diurnal changes.…”

Section: Experiments and Methods Of Sampling Soil Co 2 Emissions And Esupporting

confidence: 77%

Live fences reduce the diurnal and seasonal fluctuations of soil CO2 emissions in livestock systems

Villanueva‐López

Martínez‐Zurimendi

Ramírez-Avilés

et al. 2016

Agron. Sustain. Dev.

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Deforestation of tropical forests for the establishment of grass monoculture for livestock production is responsible for about 30 % of CO 2 emissions. This issue is particularly severe in degraded pastures because degraded soils favor CO 2 flow to the soil surface. Silvopastoral systems could reduce CO 2 emissions, notably by using live fences. Here, we hypothesized that live fences of Gliricidia sepium in livestock systems should reduce variations in environmental relative humidity and soil temperature and, in turn, reduce soil CO 2 emissions. Here, we studied two livestock systems: (1) grass monoculture of Brachiaria decumbens with live fences of G. sepium and (2) grass monoculture of B. decumbens without live fences. We measured soil CO 2 seasonal emissions at different times of the day, soil temperature, and environmental relative humidity. Nine 600-m 2 plots were established in each system. All variables were measured over four 6-h period during a 24-h period, twice a month from April to September. Our results show that soil CO 2 emissions showed less variability with G. septum live fences than without live fences. This lower variability is explained by the creation of a microclimate with a higher and more stable environmental relative humidity, provided by the shade of trees. Results also show, however, that global soil CO 2 emissions did not differ between the two systems, with and without live fence. Moreover, soil CO 2 emissions varied according to season, as shown by 1.082 g CO 2 m −2 h −1 in the wet season versus 0.871 g CO 2 m −2 h −1 in the dry season. Soil CO 2 emissions varied also according to sampling time, as shown by 1.116 g CO 2 m −2 h −1 in the night versus 0.960 CO 2 m −2 h −1 in the morning.

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Section: Experiments and Methods Of Sampling Soil Co 2 Emissions And Esupporting

confidence: 77%

Live fences reduce the diurnal and seasonal fluctuations of soil CO2 emissions in livestock systems

Villanueva‐López

Martínez‐Zurimendi

Ramírez-Avilés

et al. 2016

Agron. Sustain. Dev.

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“…It attains a height up to 30 m. Pruning is a common silvicultural practice to increase wood production, improve tree shape and potentially uses to obtain poles and fire wood without decrease in wood productivity. Pruning of tree component is a powerful approach to regulate light, nutrient, and other resource competition (Frank andEduao, 2003, Dhillon et al, 2010) [5] . Many scientists reported that pruning improves wood quality and tree stem shape.…”

Section: Introductionmentioning

confidence: 99%

Assessment of yield losses in rainfed rice due to weed competition under different pruning intensity of Dalbergia sissoo based Agroforestry system

Sharma¹,

Agrawal²,

Shukla³

et al. 2023

Pharma Innovation

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Quantifying Tree Biomass Carbon Stocks and Fluxes in Agricultural Landscapes

Kuyah

Mbow

Sileshi³

et al. 2016

Methods for Measuring Greenhouse Gas Balances and Evaluating Mitigation Options in Smallholder Agriculture

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This chapter presents methods to quantify carbon stocks and carbon stock changes in biomass of trees in agricultural landscapes. Specifi cally it assesses approaches for their applicability to smallholder farms and other tree enterprises in agricultural landscapes. Measurement techniques are evaluated across three criteria: accuracy, cost, and scale. We then recommend techniques appropriate for users looking to quantify carbon in tree biomass at the whole-farm and landscape scales. A basic understanding of the carbon cycle and the concepts of biomass assessment is assumed. IntroductionTrees and woody biomass play an important role in the global carbon cycle. Forest biomass accounts for over 45 % of terrestrial carbon stocks, with approximately 70 % and 30 % contained within the above and belowground biomass, respectively (Cairns et al. 1997 ;Mokany et al. 2006 ). Not all trees exist inside forests, however.

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Untitled

Cited by 18 publications

References 16 publications

Live fences reduce the diurnal and seasonal fluctuations of soil CO2 emissions in livestock systems

Live fences reduce the diurnal and seasonal fluctuations of soil CO2 emissions in livestock systems

Assessment of yield losses in rainfed rice due to weed competition under different pruning intensity of Dalbergia sissoo based Agroforestry system

Quantifying Tree Biomass Carbon Stocks and Fluxes in Agricultural Landscapes

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