<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0188-4611</journal-id>
<journal-title><![CDATA[Investigaciones geográficas]]></journal-title>
<abbrev-journal-title><![CDATA[Invest. Geog]]></abbrev-journal-title>
<issn>0188-4611</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Geografía]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-46112017000300007</article-id>
<article-id pub-id-type="doi">10.14350/rig.57214</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tendencia en el siglo XXI del Índice de Diferencias Normalizadas de Vegetación (NDVI) en la parte sur de la península de Baja California]]></article-title>
<article-title xml:lang="en"><![CDATA[Trend in the Normalized Difference Vegetation Index (NDVI) in the Southern Part of Baja California Peninsula]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salinas-Zavala]]></surname>
<given-names><![CDATA[César Augusto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Rincón]]></surname>
<given-names><![CDATA[Raúl Octavio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Zárate]]></surname>
<given-names><![CDATA[María Verónica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigaciones Biológicas del Noroeste (CIBNOR)  ]]></institution>
<addr-line><![CDATA[La Paz Baja California Sur]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<numero>94</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-46112017000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-46112017000300007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-46112017000300007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El uso de sensores remotos en la investigación ha permitido realizar análisis a escalas que anteriormente resultaba muy difícil llevar a cabo. En este trabajo se utilizaron imágenes de satélite tipo MODIS para analizar el comportamiento promedio y la tendencia sostenida del NDVI por pixel en la región meridional de la península de Baja California durante el periodo 2001-2015. En total se analizaron 1 377 985 pixeles, de los cuales el 67.04% mostró valores de NDVI promedio entre 0.1 y 0.3 consistentes para zonas áridas. No obstante, se observaron valores &gt;0.5 en las porciones de mayor cobertura vegetal en zonas elevadas, y los máximos valores (&gt;0.8) se hallaron dentro de la Reserva de la Biosfera Sierra La Laguna (RBSL), en el sur de la península. El análisis de la tendencia reveló que en esta misma zona de la RBSL, los valores de tendencia del NDVI son negativos, lo que indica pérdida del vigor de la vegetación. Valores de tendencia negativa tuvieron alta correspondencia también con las zonas de mayor densidad poblacional y mayor desarrollo turístico alrededor de la RBSL, lo que permite inferir que en toda la región sur de la península existe una fuerte presión que ocasiona cambios en el sistema. Su magnitud tendrá que ser evaluada para determinar si se trata de cambios estructurales solamente o si ya se presentan también cambios funcionales. Esperamos que este primer esfuerzo siente las bases para investigaciones futuras que coadyuven a la toma de decisiones y planes de desarrollo en la región.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The use of remote sensing in scientific research has revolutionized our understanding by revealing the diversity and complexity of terrestrial systems, something difficult to appreciate in the past. One of the tools most extensively used in this field is the Normalized Difference Vegetation Index (NDVI), which is a system for the remote monitoring of vegetation in a synoptic temporal and spatial scale. In this particular case, we are interested in analyzing not only the average spatial or temporal behavior of the NDVI, but any trends it may display. It is a simple but nonetheless important method for the study of temporal series, since it allows to identify, in a general sense, a positive (increase) or negative (decrease) pattern of the elements in a particular environment during a given period. This paper analyzes the average behavior and sustained trend of NDVI per pixel for the southern portion of the Baja California Peninsula, Mexico, during the period 2001-2015. MODIS images obtained from the public database Land Processes Distributed Active Archive Center (LPDAAC,https://lpdaac.usgs.gov/) of the National Aeronautics and Space Administration (NASA) were used. The information is in binary format with a 250-m spatial resolution (pixel unit), and a 16-day temporal resolution (MOD13Q1). NDVI data corresponding to the southern portion of the Baja California Peninsula are available in two tiles (h07v06 and H08v06); therefore, techniques for processing tiled images were applied to produce each average 16-day image and, subsequently, work on a monthly basis. MODIS products were cut and reprojected from the Universal Transverse Mercator (UTM) system to the WGS84 geographic coordinate system; MODIS data to obtain the average value and the trend of NDVI per pixel were processed using the programming software R through different libraries. A total of 1 377 985 pixels were analyzed, 67.04% of which showed average NDVI values between 0.1 and 0.3, consistent with arid zones. However, values &gt; 0.5 were recorded in areas with a high vegetation cover in high altitudes, with peak values (&gt; 0.8) within Sierra La Laguna Biosphere Reserve (RBSL), located to the south of the peninsula. The trend analysis revealed that in this same area within RBSL, the NDVI trend values are negative, indicating loss of vegetation vigor. Negative trend values matched closely the areas with the highest population density and tourism development around RBSL, indicating that the southern region of the peninsula is facing a strong pressure that is leading to alterations in the system. Its magnitude should have to be evaluated to determine if it causes structural changes only or if functional changes are also involved. Although the tourism sector has boosted economic growth in the southern portion of the Baja California peninsula, this activity has also involved the greatest alterations to the natural system, which is particularly evident in coastal subsystems. These tourism development and urbanization process, in addition to fragmentation, cause disturbance levels not yet measured in a synoptic scale. This first approximation sets the ground to continue searching for patterns of change that may be indicators of the condition of the systems analyzed. Tn turn, these could be used to establish useful indicators for decision-making, particularly with regard to the planning of tourist development initiatives. As discussed in this paper, the implementation of poorly designed projects may be the main stressors of ecological systems, which eventually may lead structural and functional changes in the system.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[uso del suelo]]></kwd>
<kwd lng="es"><![CDATA[Sierra de la Laguna]]></kwd>
<kwd lng="es"><![CDATA[MODIS]]></kwd>
<kwd lng="es"><![CDATA[áreas naturales protegidas]]></kwd>
<kwd lng="es"><![CDATA[sensores remotos]]></kwd>
<kwd lng="en"><![CDATA[changing land use]]></kwd>
<kwd lng="en"><![CDATA[Sierra de la Laguna]]></kwd>
<kwd lng="en"><![CDATA[MODIS]]></kwd>
<kwd lng="en"><![CDATA[Natural Protected Areas]]></kwd>
<kwd lng="en"><![CDATA[remote sensing]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Evolución de la dinámica vegetal mediante una serie de imágenes LANDSAT TM (1986-2011): Región central de Chihuahua, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alatorre]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Miramontes-Beltrán]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Peña]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Cervantes]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bravo]]></surname>
<given-names><![CDATA[L. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cuadernos de Investigación Geográfica]]></source>
<year>2014</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>449-76</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Análisis biogeográfico del noroeste de México con énfasis en la variación climática y mastozoológica]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Álvarez-Castañeda]]></surname>
<given-names><![CDATA[S. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas-Zavala]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[de Lachica]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Acta Zoológica Mexicana]]></source>
<year>1995</year>
<volume>66</volume>
<page-range>59-86</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cicone]]></surname>
<given-names><![CDATA[R. C.]]></given-names>
</name>
<name>
<surname><![CDATA[T. M.]]></surname>
<given-names><![CDATA[Parris]]></given-names>
</name>
</person-group>
<source><![CDATA[Data and information access for analysis of global environmental change]]></source>
<year>1992</year>
<conf-name><![CDATA[ International Symposium on Remote Sensing of Environment, 24]]></conf-name>
<conf-loc>Río de Janeiro, Brazil </conf-loc>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<collab>CONANP (Comisión Nacional de Áreas Naturales Protegidas)</collab>
<source><![CDATA[Área de Protección de Flora y Fauna Islas del Golfo de California]]></source>
<year>2016</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[CONANP]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Spatial Patterns of NDVI Variation over Indonesia and Their Relationship to ENSO Warm Events during the Period 1982-2006]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Erasmi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Propastin]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Kappas]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Climate]]></source>
<year>2009</year>
<volume>22</volume>
<page-range>6612-23</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Friedl]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Davis]]></surname>
<given-names><![CDATA[S. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Michaelsen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mortiz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modeling sources of uncertainty in satellite-based estimates of leaf area index using a scene simulation model]]></source>
<year>1994</year>
<conf-name><![CDATA[ International Geoscience and Remote Sensing Symposium, 94]]></conf-name>
<conf-loc>Pasadena, Calif., EE.UU. </conf-loc>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Vegetation indices from AVHRR data: An update and future prospects]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutman]]></surname>
<given-names><![CDATA[G. G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing Environment]]></source>
<year>1991</year>
<volume>35</volume>
<page-range>121-36</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Assessing deforestation and habitat fragmentation in Uganda using satellite observations and fractal analysis]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hlavka]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Strong]]></surname>
<given-names><![CDATA[L. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Journal of Imaging Science and Technology]]></source>
<year>1992</year>
<volume>36</volume>
<page-range>440-5</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Unmixing AVHRR imagery to assess clearcuts and forest regrowth in Oregon]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hlavka]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Spanner]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[IEEE Transactions on Geoscience and Remote Sensing]]></source>
<year>1995</year>
<volume>33</volume>
<page-range>788-95</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[History of satellite mission and measurements of the Earth radiation budget (1957-1984)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[House]]></surname>
<given-names><![CDATA[F. B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gruber]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hunt]]></surname>
<given-names><![CDATA[G. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Mecherikunnel]]></surname>
<given-names><![CDATA[A. T]]></given-names>
</name>
</person-group>
<source><![CDATA[Reviews of Geophysics]]></source>
<year>1986</year>
<volume>24</volume>
<page-range>357-77</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<collab>INEGI (Instituto Nacional de Geografía Estadística e Informática)</collab>
<source><![CDATA[Características edafológicas, fisiográficas, climáticas e hidrográficas de México]]></source>
<year>1991</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[INEGI]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ivanova]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[A. E.]]></surname>
<given-names><![CDATA[Gámez]]></given-names>
</name>
</person-group>
<source><![CDATA[Plan Estatal de Acción ante el Cambio Climático para Baja California Sur]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Baja California Sur, México ]]></publisher-loc>
<publisher-name><![CDATA[UABCS]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Global Drought Watch from Space]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kogan]]></surname>
<given-names><![CDATA[F. N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bulletin of the American Meteorological Society]]></source>
<year>1997</year>
<volume>78</volume>
<page-range>621-36</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Satellite-observed sensitivity of world land ecosystems to El Niño/La Niña]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kogan]]></surname>
<given-names><![CDATA[F. N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing Environment]]></source>
<year>2000</year>
<volume>74</volume>
<page-range>445-6</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Models to assess the soil and vegetation state from multispectral satellite data]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kozoderov]]></surname>
<given-names><![CDATA[V. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Kosolapov]]></surname>
<given-names><![CDATA[V. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Russian Journal of Remote Sensing]]></source>
<year>1993</year>
<volume>5</volume>
<page-range>33-50</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Monitoring of Deforestation and Forest Degradation Using Remote Sensing and GIS: A Case Study of Ranchi in Jharkhand (India)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Rani]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Pandey]]></surname>
<given-names><![CDATA[P. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Majumdar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nathawat]]></surname>
<given-names><![CDATA[M. S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Report and Opinion]]></source>
<year>2010</year>
<volume>2</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>14-20</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Interannual variability of vegetation in the United States and its relation to El Niño/Southern Oscillation]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Kafatos]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing of Environment]]></source>
<year>2000</year>
<volume>71</volume>
<page-range>239-47</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Satellite recorded vegetation response to drought in Brazil]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[W. T. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Massambani]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Nobre]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[International Journal of Climatolology]]></source>
<year>1994</year>
<volume>14</volume>
<page-range>343-54</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A review of regional science applications of satellite remote sensing in urban settings]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patino]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Duque]]></surname>
<given-names><![CDATA[J. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Computers, Environment and Urban Systems]]></source>
<year>2013</year>
<volume>37</volume>
<page-range>1-17</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Characteristics and drivers of global NDVI-based FPAR from 1982-2006]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peng]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hu]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Biogeochemical Cycles]]></source>
<year>2012</year>
<volume>26</volume>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Terrestrial ecosystems from space: a review of earth observation products for macroecology applications]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pfeifer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Disney]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Quaife]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Marchant]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Ecology and Biogeography]]></source>
<year>2012</year>
<volume>21</volume>
<page-range>603-24</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Impact of ENSO on East African ecosystems: a multivariate analysis based on climate and remote sensing data]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Plisnier]]></surname>
<given-names><![CDATA[P. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Serneels]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lambin]]></surname>
<given-names><![CDATA[E. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Global Ecology and Biogeography]]></source>
<year>2000</year>
<volume>9</volume>
<page-range>481-97</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Annual and interannual (ENSO) variability of spatial scaling properties of a vegetation index (NDVI) in Amazonia"]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Poveda]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[L. F.]]></surname>
<given-names><![CDATA[Salazar]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing Environment]]></source>
<year>2004</year>
<volume>93</volume>
<page-range>391-401</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="book">
<collab>R Core Team</collab>
<source><![CDATA[R: A language and environment for statistical computing]]></source>
<year>2015</year>
<publisher-loc><![CDATA[Vienna, Austria ]]></publisher-loc>
<publisher-name><![CDATA[R Foundation for Statistical Computing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Valor de existencia del servicio ecosistémico hidrológico de la Reserva de la Biosfera Sierra La Laguna, Baja California Sur, México]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Brito]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Almendarez-Hernandez]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Morales-Zárate]]></surname>
<given-names><![CDATA[M. V.]]></given-names>
</name>
<name>
<surname><![CDATA[Salinas-Zavala]]></surname>
<given-names><![CDATA[C. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Frontera Norte]]></source>
<year>2013</year>
<volume>25</volume>
<page-range>97-129</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Red and photographic infrared linear combinations for monitoring vegetation]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tucker]]></surname>
<given-names><![CDATA[C. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing Environment]]></source>
<year>1979</year>
<volume>8</volume>
<page-range>127-50</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Trends and ENSO/AAO Driven Variability in NDVI Derived Productivity and Phenology alongside the Andes Mountains]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Van Leeuwen]]></surname>
<given-names><![CDATA[W. J. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Hartfield]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Meza]]></surname>
<given-names><![CDATA[F. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing]]></source>
<year>2013</year>
<volume>5</volume>
<page-range>1177-203</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Using NDVI and soil quality analysis to assess influence of agronomic management on within-plot spatial variability and factors limiting production]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Verhulst]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Govaerts]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Sayre]]></surname>
<given-names><![CDATA[K. D.]]></given-names>
</name>
<name>
<surname><![CDATA[Deckers]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[François]]></surname>
<given-names><![CDATA[I. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Dendooven]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Plant Soil]]></source>
<year>2009</year>
<volume>317</volume>
<page-range>41-59</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[On the relationship of NDVI with leaf area index in a deciduous forest site]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[Q.]]></given-names>
</name>
<name>
<surname><![CDATA[Adikua]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Tenhunena]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Granierb]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Remote Sensing Environment]]></source>
<year>2005</year>
<volume>94</volume>
<page-range>244-55</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yengoh]]></surname>
<given-names><![CDATA[G. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Dent]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Olsson]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Tengberg]]></surname>
<given-names><![CDATA[A. E.]]></given-names>
</name>
<name>
<surname><![CDATA[Tucker III]]></surname>
<given-names><![CDATA[C. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Use of the Normalized Difference Vegetation Index (NDVI) to Assess Land Degradation at Multiple Scales Current Satatus, Future Trends, and Practical Consideration]]></source>
<year>2015</year>
<publisher-name><![CDATA[SpringerBriefs in Environmental Science]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
