Mangrove ecosystem under pressure by  anthropogenic activities: Nitrogen,   Carbon, and human perspective               Pr...
Contents•   Research Problems•   Goals and Objectives•   Methodology•   Activities•   Potential Benefits
Research Problems• Watershed without forest cover and  presence of agriculture and urban zones  promote greater sediments ...
Research Problems• Lost of mangrove  forests means  reduction in species  richness for both  coastal and  terrestrial  eco...
Goals and Objectives• Determine sediment accumulation in  mangrove forests near urban, rural, and  protected areas.• Compa...
Methodology• Collect soil samples using cutting ring      N and C compound (g/kg)      Soil microbial biomass (g/kg)      ...
• Objective Identify the impact of watershed  condition (e.g. forest cover, agriculture,  urban areas) in sediments and po...
Methodology• GIS tool to analyze watershed deposition.     Landsat images (30-m resolution)     Classify land cover using ...
• Objective Identify if sediments have  positive or negative effects on mangrove  development.• Hypothesis Considering man...
Methodology• Seeds and seedling transplant experiment  – in and ex situ  – Germination rates and survival seedling  – Size...
• Objective Identify the perspective of  human settlement near mangrove forests.• Hypothesis Mangroves present a great  nu...
• Human perspective  – Questionnaires  – Interviews  – Workshop  – Volunteer program
Potential Benefits• Determine the stability of the mangrove  system• Identify the effect of anthropogenic  activities on m...
Questions?
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Mangrove ecosystem under pressure by anthropogenic activities: Nitrogen, Carbon, and human perspective

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Pre-proposal presentation by Mervin Perez and Xianbin Liu for CIAM 6117

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Mangrove ecosystem under pressure by anthropogenic activities: Nitrogen, Carbon, and human perspective

  1. 1. Mangrove ecosystem under pressure by anthropogenic activities: Nitrogen, Carbon, and human perspective Pre-proposal By: Mervin E. Pérez and Xianbin Liu
  2. 2. Contents• Research Problems• Goals and Objectives• Methodology• Activities• Potential Benefits
  3. 3. Research Problems• Watershed without forest cover and presence of agriculture and urban zones promote greater sediments and pollution in mangrove ecosystem.• Reduction in mangrove forests cover result in direct coastal pollution by elimination of buffer zone.• Geochemical cycle arrested by mangroves reduction
  4. 4. Research Problems• Lost of mangrove forests means reduction in species richness for both coastal and terrestrial ecosystems• Reduction in good services by poor knowledge of human perception
  5. 5. Goals and Objectives• Determine sediment accumulation in mangrove forests near urban, rural, and protected areas.• Compare sediments among mangrove forests patches to identify anthropogenic impact (local and watershed scale).• Quantify N and C to verify the stability of the mangrove forests habitat.
  6. 6. Methodology• Collect soil samples using cutting ring N and C compound (g/kg) Soil microbial biomass (g/kg) pH• Litterfall using 0.5 m * 4.0 m basket with a screen net. N and C compound (g/kg) Total amount of litter (g/m2)• Atmospheric deposition using plastic cup container Wet and Dry N deposition (mg/g)
  7. 7. • Objective Identify the impact of watershed condition (e.g. forest cover, agriculture, urban areas) in sediments and pollution on mangrove forests• Hypothesis C and N concentration will be lower in watershed with higher forest cover and lower percentage of urban and pasture zones.
  8. 8. Methodology• GIS tool to analyze watershed deposition. Landsat images (30-m resolution) Classify land cover using training samples (supervised and unsupervised procedures) Normalizae Difference Vegetation Index (NDVI) to compare land cover changes Index-water quality analysis
  9. 9. • Objective Identify if sediments have positive or negative effects on mangrove development.• Hypothesis Considering mangrove as an ecosystem with higher resilience, no differences in seed and seedling development will be recorded among study sites.
  10. 10. Methodology• Seeds and seedling transplant experiment – in and ex situ – Germination rates and survival seedling – Size, basal area, biomass vs C and N
  11. 11. • Objective Identify the perspective of human settlement near mangrove forests.• Hypothesis Mangroves present a great number of ecosystem services but some of them are not perceptible for humans (e.g. C and N cycle), then human perception vary according gender, age and social status.
  12. 12. • Human perspective – Questionnaires – Interviews – Workshop – Volunteer program
  13. 13. Potential Benefits• Determine the stability of the mangrove system• Identify the effect of anthropogenic activities on mangrove ecosystem• Change of paradigm about mangrove ecosystem services• Recommendation to mitigate pollution in mangrove areas
  14. 14. Questions?

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