Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index
Evidences of vegetation coverage management were analyzed according to Soil Adjusted Vegetation Index (SAVI) values in private and communal lands of the Maderas del Carmen and Ocampo Natural Protected Areas; the index values were generated from three Landsat satellite images of 1985, 2001 and 2019. The data index values were acquired from forests, scrublands, and grasslands from supervised classified maps generated with training areas, from Inegi vegetation and land use map series II, IV and VI, adding resources management intensity as a factor derived from property maps. A shapefile point network of the study area, with 500 m of separation, was created in order to capture the values of presence of forest, scrubland, or grassland ecosystems; the management intensity (Private lands with conservation, private lands with management, and communal lands with management) and the SAVI values from the three dates generated a database used to analyze the index values (vegetation coverage) through time. Normality tests were made in the database; no normal distribution was detected on them. The variance of the index was calculated by ecosystem and management factor (intensive, moderate and conservation). The results of the non-parametric H Kruskal Wallis tests indicated significant differences (α>0.95, Z = 2.394 critical value) on the three dates for all the ecosystems and management intensities. In the forests and grasslands, the private lands under conservation management exhibited the highest vegetation index values, while in the scrublands, the highest values corresponded to lands with a moderate management.
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Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP)
2022
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García Aranda, Mario Alberto Moreno Talamantes, Antonio Sánchez Salas, Jaime Muro Pérez, Gisela González Uribe, Dino Ulises Delgadillo Villalobos, Jonás Adán |
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García Aranda, Mario Alberto Moreno Talamantes, Antonio Sánchez Salas, Jaime Muro Pérez, Gisela González Uribe, Dino Ulises Delgadillo Villalobos, Jonás Adán Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| author_facet |
García Aranda, Mario Alberto Moreno Talamantes, Antonio Sánchez Salas, Jaime Muro Pérez, Gisela González Uribe, Dino Ulises Delgadillo Villalobos, Jonás Adán |
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García Aranda, Mario Alberto |
| title |
Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| title_short |
Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| title_full |
Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| title_fullStr |
Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| title_full_unstemmed |
Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index |
| title_sort |
conservation of vegetation coverage in maderas del carmen, coahuila, multitemporal analysis using savi index |
| description |
Evidences of vegetation coverage management were analyzed according to Soil Adjusted Vegetation Index (SAVI) values in private and communal lands of the Maderas del Carmen and Ocampo Natural Protected Areas; the index values were generated from three Landsat satellite images of 1985, 2001 and 2019. The data index values were acquired from forests, scrublands, and grasslands from supervised classified maps generated with training areas, from Inegi vegetation and land use map series II, IV and VI, adding resources management intensity as a factor derived from property maps. A shapefile point network of the study area, with 500 m of separation, was created in order to capture the values of presence of forest, scrubland, or grassland ecosystems; the management intensity (Private lands with conservation, private lands with management, and communal lands with management) and the SAVI values from the three dates generated a database used to analyze the index values (vegetation coverage) through time. Normality tests were made in the database; no normal distribution was detected on them. The variance of the index was calculated by ecosystem and management factor (intensive, moderate and conservation). The results of the non-parametric H Kruskal Wallis tests indicated significant differences (α>0.95, Z = 2.394 critical value) on the three dates for all the ecosystems and management intensities. In the forests and grasslands, the private lands under conservation management exhibited the highest vegetation index values, while in the scrublands, the highest values corresponded to lands with a moderate management. |
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Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP) |
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2022 |
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https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192 |
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oai:ojs.pkp.sfu.ca:article11922022-08-16T17:04:35Z Conservation of vegetation coverage in Maderas del Carmen, Coahuila, multitemporal analysis using SAVI index Conservación de la cobertura vegetal en Maderas del Carmen Coahuila, análisis multitemporal con índice SAVI García Aranda, Mario Alberto Moreno Talamantes, Antonio Sánchez Salas, Jaime Muro Pérez, Gisela González Uribe, Dino Ulises Delgadillo Villalobos, Jonás Adán Conservacion índice SAVI manejo multitemporal Maderas del Carmen Ocampo Conservation, Maderas del Carmen, Management, Ocampo, SAVI. Index SAVI forest magagement multitemporal Evidences of vegetation coverage management were analyzed according to Soil Adjusted Vegetation Index (SAVI) values in private and communal lands of the Maderas del Carmen and Ocampo Natural Protected Areas; the index values were generated from three Landsat satellite images of 1985, 2001 and 2019. The data index values were acquired from forests, scrublands, and grasslands from supervised classified maps generated with training areas, from Inegi vegetation and land use map series II, IV and VI, adding resources management intensity as a factor derived from property maps. A shapefile point network of the study area, with 500 m of separation, was created in order to capture the values of presence of forest, scrubland, or grassland ecosystems; the management intensity (Private lands with conservation, private lands with management, and communal lands with management) and the SAVI values from the three dates generated a database used to analyze the index values (vegetation coverage) through time. Normality tests were made in the database; no normal distribution was detected on them. The variance of the index was calculated by ecosystem and management factor (intensive, moderate and conservation). The results of the non-parametric H Kruskal Wallis tests indicated significant differences (α>0.95, Z = 2.394 critical value) on the three dates for all the ecosystems and management intensities. In the forests and grasslands, the private lands under conservation management exhibited the highest vegetation index values, while in the scrublands, the highest values corresponded to lands with a moderate management. Se analizaron evidencias de manejo en la cobertura vegetal, a partir de valores del Índice de Vegetación Normalizado de Suelo (SAVI) en terrenos privados y comunales de las áreas naturales protegidas Maderas del Carmen y Ocampo; los índices se generaron de tres imágenes de satélite Landsat de 1985, 2001 y 2019; los valores del índice se capturaron en áreas de bosque, matorral y pastizal de clasificaciones supervisadas obtenidas con áreas de entrenamiento usando las series II, IV y VI de Uso de Suelo y Vegetación de Inegi; y se agregó el factor manejo del recurso procedente de mapas prediales. En una red de puntos espaciada a 500 m dentro del área, se capturó la presencia de bosque, matorral y pastizal; la intensidad de manejo en terrenos privados (conservación y con manejo), así como terrenos comunales con manejo, además del valor del índice SAVI de tres fechas; con ello, se generó una base de datos para el análisis del comportamiento del índice (cobertura vegetal). Las pruebas de Chi cuadrada no detectaron una distribución normal. La varianza del índice se realizó por ecosistema y el factor de manejo (intensivo, moderado y de conservación). Los resultados indicaron diferencias significativas en la prueba H no paramétrica de Kruskal Wallis (α>0.95, Z = 2.394 valor crítico) en las tres fechas para todos los ecosistemas e intensidades de manejo. En bosques y pastizales los terrenos bajo manejo de conservación registraron los valores más altos de Índice de Vegetación; y en matorrales correspondió a los sitios de manejo moderado. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP) 2022-05-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf text/html text/html text/xml https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192 10.29298/rmcf.v13i71.1192 Revista Mexicana de Ciencias Forestales; Vol. 13 No. 71 (2022) Revista Mexicana de Ciencias Forestales; Vol. 13 Núm. 71 (2022) 2448-6671 spa eng https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192/3098 https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192/3099 https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192/3100 https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192/3105 https://cienciasforestales.inifap.gob.mx/index.php/forestales/article/view/1192/3154 Derechos de autor 2022 Revista Mexicana de Ciencias Forestales https://creativecommons.org/licenses/by-nc/4.0 |