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  • 1
    Call number: 9783319241128 (e-books)
    Description / Table of Contents: This report examines the scientific basis for the use of remotely sensed data, particularly Normalized Difference Vegetation Index (NDVI), primarily for the assessment of land degradation at different scales and for a range of applications, including resilience of agro-ecosystems. Evidence is drawn from a wide range of investigations, primarily from the scientific peer-reviewed literature but also non-journal sources. The literature review has been corroborated by interviews with leading specialists in the field. The report reviews the use of NDVI for a range of themes related to land degradation, including land cover change, drought monitoring and early warning systems, desertification processes, greening trends, soil erosion and salinization, vegetation burning and recovery after fire, biodiversity loss, and soil carbon. This SpringerBrief also discusses the limits of the use of NDVI for land degradation assessment and potential for future directions of use. A substantial body of peer-reviewed research lends unequivocal support for the use of coarse-resolution time series of NDVI data for studying vegetation dynamics at global, continental and sub-continental levels. There is compelling evidence that these data are highly correlated with biophysically meaningful vegetation characteristics such as photosynthetic capacity and primary production that are closely related to land degradation and to agroecosystem resilience.
    Type of Medium: 12
    Pages: 1 Online-Ressource (xx, 110 Seiten) , Illustrationen
    ISBN: 9783319241128 , 978-3-319-24112-8
    ISSN: 2191-5547 , 2191-5555
    Series Statement: SpringerBriefs in environmental science
    Language: English
    Note: Contents Introduction 1.1 Introduction 1.2 Land Degradation in the UNCCD and GEF 1.3 Concepts, Processes, and Scales of Land Degradation 1.4 Assessment of Resilience of Agroecosystems 2 The Potential for Assessment of Land Degradation by Remote Sensing 2.1 Normalized Difference Vegetation Index 2.2 Remote Sensing Features That Characterize NDVI- Based Assessments of Land Degradation 2.3 Other Vegetation Indices Closely Related to NDVI 2.3.1 Indices Closely Related to NDVI 2.3.2 Comparing NDVI to EVI 3 Applications of NDVI for Land Degradation Assessment 3.1 Land-Use and Land-Cover Change 3.2 Drought and Drought Early Warning 3.3 Desertification 3.4 Soil Erosion 3.5 Soil Salinization 3.6 Vegetation Burning 3.7 Soil Organic Carbon (SOC) 3.8 Biodiversity Monitoring and Conservation 3.9 Monitoring Ecosystem Resilience 4 Limits to the Use of NDVI in Land Degradation Assessment 5 Key Issues in the Use of NDVI for Land Degradation Assessment 5.1 NDVI, NPP, and Land Degradation 5.2 NDVI, RUE, and Land Degradation 5.3 Separating the Effects of Other Causes of NDVI Changes 5.4 Abrupt Changes 6 Development of Land Degradation Assessments 7 Experts’ Opinions on the Use of NDVI for Land Degradation Assessment 7.1 NDVI: Rainfall Proportionality, an Important Consideration 7.2 Building on the GLADA Assessment 8 Main Global NDVI Datasets, Databases, and Software 8.1 Main NDVI Datasets 8.2 Quality-Related Considerations 8.3 Precipitation Datasets 8.4 NDVI Software 9 Country-Level Use of Satellite Products to Detect and Map Land Degradation Processes 10 Challenges to the Use of NDVI in Land Degradation Assessments 11 Recommendations for Future Application of NDVI 11.1 In the Convention National Reporting 11.2 In a Revised GEF Resource Allocation Methodology 12 Conclusion Appendix A Inventory of Some Global and Sub-global Remote Sensing-Based Land Degradation Assessments Appendix B Use of Remote Sensing-Derived Land Productive Capacity Dynamics for the New World Atlas of Desertification (WAD) Appendix C Developments with GLADA Appendix D China’s Experiences on the Usefulness of GLADA Appendix E Main Features of Image Products from the Different Sensors Appendix F UNCCD Core Indicators for National Reporting: ICCD/COP(11)/CST/2 Appendix G Current Cost of Selected Satellite Imagery Appendix H Software for Processing Satellite Images to Develop the NDVI References
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  • 2
    ISSN: 1432-1211
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 443 (2006), S. 271-271 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir Today, when freedom of the press and academia are in the news, along with the neglect or misuse of scientific results and theories by politicians, it may be useful to remember a time when political demagogy crushed these freedoms in Germany. At the inauguration of the ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 444 (2006), S. 265-265 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir Evolutionary biology has come under attack from creationists in the United States and in several European countries, most recently, Poland (“Polish scientists fight creationism” Nature 443, 890–891; 2006 ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 424 (2003), S. 875-875 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Sir The renewed debate (see, for example, ref. 1) about whether the German zoologist Ernst Haeckel 'doctored' his embryo drawings to fit his biogenetic law — ontogeny recapitulates phylogeny — has led to intensified research into other aspects of ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Soil use and management 5 (1989), S. 0 
    ISSN: 1475-2743
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract. The ultimate goal of resource monitoring is to analyse the spatial distribution of the balance between supply and demand of a certain resource. Remote sensing techniques are commonly used for the assessment of the supply of resources. By integrating remote sensing with the related techniques of geographical information systems and spatial modelling, the demand as well as the accessibility of resources can be analysed. The article gives an overview over methods for integrated resource monitoring. Examples from arid environments are also presented.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 31 (1993), S. 32-32 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 31 (1993), S. 23-31 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract This article critically reviews the international debate on desertification, its status and rate as well as causes and consequences. The article rejects the commonly used concept of a degrading environment, but tries to explain the environmental problems as symptoms of a wider economic and political crisis. An alternative approach applying systems analysis of the entire socio-economic-system to the study of desertification and land degradation is discussed, with examples from the Western Sudan.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    BioEssays 7 (1987), S. 116-119 
    ISSN: 0265-9247
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A large proportion of tumour-associated antigens seem to be determined by carbohydrate structures. Advances in the study of the antigenicity of cell-surface carbohydrates have been hampered by the absence of advanced monoclonal hybridoma technology comparable to that available for the study of protein antigens. Monoclonal antibodies have been raised against a carbohydrate epitope (43-9F) that is associated with the proliferative features of squamous lung carcinomas. These were used in turn to generate anti-idiotype antibodies with homology to 43-9F. The method and its possible applications are described, together with a procedure to detect rare cell membrane variants within large populations.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal of Morphology 211 (1992), S. 73-85 
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: We have begun a comparative study of pigment patterns and their mechanisms of formation in ambystomatid salamanders in an attempt to elucidate the evolution of these traits in this family. In Ambystoma t. tigrinum, the migration of the prospective pigment cells was followed by using scanning electron microscopy and light microscopy combined with markers (dopa incubation for detecting melanophores, ammonia-induced pterin fluorescence for detecting xanthophores). The pigment pattern resulting from the cell migration shares features both with the alternating vertical xanthophore and melanophore bars of A. mexicanum and the horizontal stripes of certain salamandrids and ambystomatids. The pigment pattern of A. t. tigrinum is interpreted here as an intermediate evolutionary step between a primitive horizontal stripe pattern and a derived vertical bar pattern. The initiation of pigment pattern formation resembles the situation in A. mexicanum, probably reflecting the close phylogenetic relationship between the two taxa.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
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