Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

Damen, M. C. J.

Bibliographic data

Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856343064

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Damen, M. C. J.

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: 3 Spectral signatures of objects. Chairman: G. Guyot, Liaison: N. J. J. Bunnik

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: On the estimation of the condition of agricultural objects from spectral signatures in the VIS, NIR, MIR and TIR wavebands. R. Söllner, K.-H. Marek & H. Weichelt, H. Barsch

Document type:: Multivolume work

Structure type:: Chapter

321 Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 On the estimation of the condition of agricultural objects from spectral signatures in the VIS, NIR, MIR and TIR wavebands R.Sôllner, K.-H.Marek & H.Weichelt Central Institute for Physics of the Earth, Academy of Sciences of the GDR, Potsdam H.Barsch Pedagocial University, Potsdam, GDR ABSTRACT: During the Interkosmos-Experiment KURSK-85 the biometric indices of different crops in the Kirov collective farm v/ere used as a measure for their productivity which the interpretation of spectral signatures can refer to. A productivity criterion, derived from the spectral signatures in the VIS, NIR, MIR and TIR wavebands was used for the differentiation of the crops. The groups of vitality obtained in this way are in good correspondence with the ground reference data. 1 SURVEY APPROACH The information value of remote sensing data of agricultural objects exceeds by far the ascertainment of the size and the spatial distribution of the sowing areas and furthermore permits the recognition of differentiation levels in the state of crops, their spreading and their proportions of the entire area. Partly this is already possible with the interpretation of the spectral signatures of the agricultural targets in the red band of the visible light (VIS) and in the near infrared spectral band (NIR). In this connection much more extensive and complex information is derivable if additionally the spectral signatures of the medium (MIR) and thermal infrared (TIR) as well as the microwave band (MW) are registered (cf. among others BAR SC H, MAREK, S'ÜLLNER , WEICHELT 1984 ; BAUER, VANDERGILDT, ROBINSON 1980; MIGUET, BARET, GUYOT 1983; VASILEV, KACINSKI 1984). The interpretation of these signatures demands an efficient physical model for the diagnosis of the connection between Geophysical plant features and the spectral signatures. For the deveploment and the qualification of these model conceptions the terrestrial measurements of these features have to be related to the remote sensing data. In the Interkosmos Programme experimental surveys for the designation of the yield formation of crops with remote sensing data are therefore carried out on different survey levels (VASILEV, VEDESIN 1933). Accordingly the application of aerospace as well as terrestrial sensors for spectral signature measurements in VIS, NIR, MIR, TIR and MW-band was coupled with pedological and biometrical soil testing during the Interkosmos Experiment KURSK-85. The contribution of the GDR to that experiment was concentrated on the participation in terrestrial soil and biogeographical surveys and in spectral signature measurements in the lower survey levels, especially trajectories. 2 METHODOLOGY AND RESULTS OF TERRESTRIAL SURVEY In the forest steppe, north and south of a communication road, which 25 km south of Kursk branches off the main motorway Moscow- Kursk-Charkov in easterly direction and crosses the loess-territory of the collective farm Kirov, soil (chernozem) and vegetation samples from 12 fields were taken at a length of about 5 km. This was done at altogether 27 test spots because differences in the stock density and the plant development within the and plots had to be taken into consideration. The designation of components of the yield formation through soil and vegetation features was partly immediately carried out on the terrain (soil colour, stock density, stock height, phenology, drilling clearance, humid mass of soil and plant), partly it was done in the laboratory of the Kursk research station of the Geographical Institute of the USSR Academy of Science (dry residue of soil and plant, crop.index spectro- metrically after HOLM and LEFORT, leaf area index - LAI) C The results show fig. 1, 2. The consideration or the spatial differentiation of the soil features made clear that the highest indices of the soil humidity, the KUK and the content of organic substances, the best humus quality and the darkest colours of the upper soil are to be found in the centre of the loess plates. Sites at the margin of the plates, marked here by the working plots 56, 57 and 58 as well as (at the roots of erosion hollows) the working plots 36 and 42, show significant degradation symptoms of the soil in the loess black earth through lower indices. But here, too, the pedological parameter still show a high soil fertility. The boundary conditions for the yield forma tion here result from the climate, espe cially from the shorter duration of the vegetation period in comparison to Central Europe (185 daily means above 5°C, 130 days above 10°C) and the high summer evapot ranspiration.

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