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干旱区科学  2014, Vol. 6 Issue (1): 80-96    DOI: 10.1007/s40333-013-0191-x
  学术论文 本期目录 | 过刊浏览 | 高级检索 |
Mapping aboveground biomass by integrating geospatial and forest inventory data through a k-nearest neighbor strategy in North Central Mexico
Carlos A AGUIRRE-SALADO1,2*, Eduardo J TREVIÑO-GARZA1, Oscar A AGUIRRE-CALDERÓN1, Javier JIMÉNEZ-PÉREZ1, Marco A GONZÁLEZ-TAGLE1, José R VALDÉZ-LAZALDE3, Guillermo SÁNCHEZ-DÍAZ2, Reija HAAPANEN4, Alejandro I AGUIRRE-SALADO3, Liliana MIRANDA-ARAGÓN5
1 Faculty of Forest Sciences, Autonomous University of Nuevo Leon, Linares 67700, Mexico;
2 Faculty of Engineering, Autonomous University of San Luis Potosi, San Luis Potosí 78290, Mexico;
3 Forestry Program, Postgraduate College, Montecillo 56230, Mexico;
4 Haapanen Forest Consulting, Kärjenkoskentie 64810, Finland;
5 Faculty of Agronomy and Veterinary, Autonomous University of San Luis Potosí, San Luis Potosí 78321, Mexico
Mapping aboveground biomass by integrating geospatial and forest inventory data through a k-nearest neighbor strategy in North Central Mexico
Carlos A AGUIRRE-SALADO1,2*, Eduardo J TREVIÑO-GARZA1, Oscar A AGUIRRE-CALDERÓN1, Javier JIMÉNEZ-PÉREZ1, Marco A GONZÁLEZ-TAGLE1, José R VALDÉZ-LAZALDE3, Guillermo SÁNCHEZ-DÍAZ2, Reija HAAPANEN4, Alejandro I AGUIRRE-SALADO3, Liliana MIRANDA-ARAGÓN5
1 Faculty of Forest Sciences, Autonomous University of Nuevo Leon, Linares 67700, Mexico;
2 Faculty of Engineering, Autonomous University of San Luis Potosi, San Luis Potosí 78290, Mexico;
3 Forestry Program, Postgraduate College, Montecillo 56230, Mexico;
4 Haapanen Forest Consulting, Kärjenkoskentie 64810, Finland;
5 Faculty of Agronomy and Veterinary, Autonomous University of San Luis Potosí, San Luis Potosí 78321, Mexico
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摘要 As climate change negotiations progress, monitoring biomass and carbon stocks is becoming an important part of the current forest research. Therefore, national governments are interested in developing forest-monitoring strategies using geospatial technology. Among statistical methods for mapping biomass, there is a nonparametric approach called k-nearest neighbor (kNN). We compared four variations of distance metrics of the kNN for the spatially-explicit estimation of aboveground biomass in a portion of the Mexican north border of the intertropical zone. Satellite derived, climatic, and topographic predictor variables were combined with the Mexican National Forest Inventory (NFI) data to accomplish the purpose. Performance of distance metrics applied into the kNN algorithm was evaluated using a cross validation leave-one-out technique. The results indicate that the Most Similar Neighbor (MSN) approach maximizes the correlation between predictor and response variables (r=0.9). Our results are in agreement with those reported in the literature. These findings confirm the predictive potential of the MSN approach for mapping forest variables at pixel level under the policy of Reducing Emission from Deforestation and Forest Degradation (REDD+).
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Eduardo J TREVI?O-GARZA
Oscar A AGUIRRE-CALDERóN
Javier JIMéNEZ-PéREZ
Marco A GONZáLEZ-TAGLE
José R VALDéZ-LAZALDE
Guillermo SáNCHEZ-DíAZ
et al.
Carlos A AGUIRRE-SALADO
Reija HAAPANEN
关键词:  climate  community ecology  convergent evolution  Bromus tectorum  shrub steppe  Junggar Basin  Great Basin    
Abstract: As climate change negotiations progress, monitoring biomass and carbon stocks is becoming an important part of the current forest research. Therefore, national governments are interested in developing forest-monitoring strategies using geospatial technology. Among statistical methods for mapping biomass, there is a nonparametric approach called k-nearest neighbor (kNN). We compared four variations of distance metrics of the kNN for the spatially-explicit estimation of aboveground biomass in a portion of the Mexican north border of the intertropical zone. Satellite derived, climatic, and topographic predictor variables were combined with the Mexican National Forest Inventory (NFI) data to accomplish the purpose. Performance of distance metrics applied into the kNN algorithm was evaluated using a cross validation leave-one-out technique. The results indicate that the Most Similar Neighbor (MSN) approach maximizes the correlation between predictor and response variables (r=0.9). Our results are in agreement with those reported in the literature. These findings confirm the predictive potential of the MSN approach for mapping forest variables at pixel level under the policy of Reducing Emission from Deforestation and Forest Degradation (REDD+).
Key words:  climate    community ecology    convergent evolution    Bromus tectorum    shrub steppe    Junggar Basin    Great Basin
收稿日期:  2012-11-19      修回日期:  2013-01-14           出版日期:  2014-02-10      发布日期:  2013-03-18      期的出版日期:  2014-02-10
通讯作者:  Carlos A AGUIRRE-SALADO   
引用本文:    
Carlos A AGUIRRE-SALADO, Eduardo J TREVI?O-GARZA, Oscar A AGUIRRE-CALDERóN,et al. Mapping aboveground biomass by integrating geospatial and forest inventory data through a k-nearest neighbor strategy in North Central Mexico[J]. 干旱区科学, 2014, 6(1): 80-96.
Carlos A AGUIRRE-SALADO, Eduardo J TREVI?O-GARZA, Oscar A AGUIRRE-CALDERóN, Javier JIMéNEZ-PéREZ, Marco A GONZáLEZ-TAGLE, José R VALDéZ-LAZALDE, Guillermo SáNCHEZ-DíAZ, Reija HAAPANEN, et al.. Mapping aboveground biomass by integrating geospatial and forest inventory data through a k-nearest neighbor strategy in North Central Mexico. Journal of Arid Land, 2014, 6(1): 80-96.
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