Prof. Dr. C. Gläßer Dr. C. Götze (GeoMLU) Dr. A. Lausch (UFZ) M.Sc. F. Riedel (project assistant)

Transkript

1 EnviMetal vegetation stress as bio-indicator of soil contamination in floodplains gtt project as part of the BMWi-support program Vorbereitung der anwendungsorientierten Nutzung der EnMAP-Mission in Verbindung mit den Sentinel-Missionen und nationalen Missionen Prof. Dr. C. Gläßer Dr. C. Götze (GeoMLU) Dr. A. Lausch (UFZ) M.Sc. F. Riedel (project assistant)

2 personal study B.Sc. Geography (FSU-Jena) focus: geoinformatic, remote sensing, soil sciences thesis: derivation of the leaf area index and comparative analysis with coarse resolution remote sensing products M.Sc. Geoinformatic (FSU-Jena) focus: remote sensing thesis: semiautomatic tree crown delineation with very high resolution multispectral data work since January 2015 scientific assistant (MLU-Halle) 2

3 EnviMetal overall objective increase in frequency and intensity of floods enhanced risk of middle and extreme water events in the Elbe river basin of Saxony-Anhalt industrial and mining areas, intensive agriculture, urban structures highly contaminated flood sediments accumulation of heavy metals in floodplains areal recording and assessment of heavy metal contamination in floodplains quantification of chemical inputs, evaluation of ecotoxicological effects with RS-methods development of semiautomatic algorithms for vegetation stress characterization Fig. 1 and 2: Mulde floodplain with oxbow lakes and floodplain forest relic ts and flooded Havel with willows (from: BMU & BFN 2009) (IPCC 2007, LAU 2008, BABOROWSKI et al. 2012) 3

4 EnviMetal general aspects vegetation stress as bio indicator spectral distinction between natural and anthropogenic stress reflection of plants: chlorophyll content, cell structure, water content soil plants dynamic, open and complex system interface between different spheres fundamental natural resource (SLONECKER et al. 2014, SHI et al. 2014) rooted in soil substrate indicators of the local environment function of multiple environmental variables Fig. 3: Simplified illustration of heavy metal absorption by plants from soil (from: 1c/69/ jpg) 4

5 EnviMetal general aspects soil direct prediction of HM indirect prediction of HM based on iron/aluminium oxides, clays based on organic matter and organic carbon (RATHOD et al. 2013) vegetation red edge position -> blue shift, red shift (e.g. CLEVERS et al. 2004, SLONECKER et al. 2010) vegetation indices increase in chlorophyll hydrolysis, decrease in water content destruction of cellular structure (SHI et al. 2014) 5

6 EnviMetal general aspects flood plains micro relief periodic flooding erosion sedimentation stagnant water low concentration of pollutants high Fig. 4: Characteristic topographical scheme relief in floodplain ecosystems, including water regime and linked type of soils (from DULAING et al. 2009) challenges consideration of many factors (vegetation, soil, relief, flooding ) metal accumulation is element- and plant-specific seasonal effects and biodiversity, spatial and temporal dynamics distinction between natural and anthropogenic stress also positive effects are possible 6

7 EnviMetal location of the study areas Fig.5: Location of the 3 EnviMetal - study areas in Saxony-Anhalt (Obere Elbe, Untere Elbe, Obere Mulde) (own design) 7

8 EnviMetal potential areas of interest intersection of different reference data flood mask (RE, ) soil information (VBK 50) (Auenböden, Gleye, Stagnosole) land cover information I (BTNT, grassland classes) land cover information II (ATKIS, grassland) geological information (holocene deposits) potential areas of interest 8

9 EnviMetal potential areas of interest Fig.6: First selection of potential areas of interest (own design) 9

10 EnviMetal potential areas of interest Fig.7: Potential reference surface in the area of the untere Elbe and sinks recorded via GPS (own picture and own design) 10

11 EnviMetal potential areas of interest upper terrace lower terrace Fig.8: Potential reference surface in the area of the untere Elbe (own pictures and own design) 11

12 EnviMetal - status and outlook several presentations in various institutions Landesamt für Umweltschutz SA Landesamt für Geologie und Bergwesen SA final selection of the reference areas visiting other sites analysis of the existing data inventory planing of the field- and flight-campaigns apply licences, test measurements dates of overflights, consultations with the UFZ sampling design considering floodplain morphology (1m DGM) derivation of additional parameters thank you for your attention 12

13 appendix EnviMetal methodology systematic upscaling of different spectral information field measurements laboratory data chemical analysis field parameter spectral measurements aerial hyperspectral images Hyspex or AISADual (EnMAP) AISA Eagle / AISA Hawk (UFZ) simulated EnMAP-data spectral unmixing spatial disaggregation (Bezugseinheiten) Tab. 2: Number of samples for the field campaign overall number of samples (NoS) sample distribution 900 year NoS/year NoS/soil NoS/vegetation pro overflight (x3) pro study area (x2) pro study area (x3)

14 appendix potential areas of interest Fig.9: Potential reference surface in the area of the obere Elbe(own pictures and own design) 14