Assessing impacts of climate variability and changing cropping patterns on regional evapotranspiration, yield and water productivity in California’s San Joaquin watershed

Xue, Jingyuan; Huo, Zailin; Kisekka, Isaya

doi:10.1016/j.agwat.2021.106852

Cited by 24 publications

(18 citation statements)

References 43 publications

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“…Teniendo en cuenta esto, el IESG resulta ser una herramienta útil para la identificación de la inclusión de la variabilidad climática desde la fase de formulación de instrumentos de planificación del recurso hídrico, lo cual tiene potencial de ser usado como base para la toma de decisiones con enfoque preventivo o correctivo de estos instrumentos. En este sentido, al incluirse los diferentes aspectos de la variabilidad climática de una zona determinada en estos instrumentos, se permite obtener una mejor planificación integrada del recurso hídrico, en la que está inmersa las diferentes formas de financiamiento (Xue et al, 2021;Soundharajan et al, 2016).…”

Section: Resultados Y Discusiónunclassified

Variabilidad climática en la planificación hídrica de la cuenca del río Cravo Sur (Casanare, Colombia)

et al. 2022

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a través del Índice de Evaluación del Sistema de Gestión (IESG). La mayoría de los proyectos incluyen la variabilidad climática (68.75%), pero en un 31.25% requieren ser revisados desde una gestión hídrica integral. Los resultados indican que los proyectos muestran diferencias en las actividades correspondientes a la valoración "específica" en un 18.75%, en los indicadores relacionados con el "seguimiento" en un 81.25%, en el riesgo "preventivo" en un 87.50% y en la cobertura asociada a la escala espacial "regional" en un 31.25%. En conclusión, estos resultados permiten entender el comportamiento climático del río Cravo Sur, sin embargo, la cobertura de los mismos necesita ser ampliada para mejorar las decisiones de corto, mediano y largo plazo, bajo escenarios futuros de un clima variante en el tiempo.

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Section: Resultados Y Discusiónunclassified

Variabilidad climática en la planificación hídrica de la cuenca del río Cravo Sur (Casanare, Colombia)

et al. 2022

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“…California Irrigation Management Information System (CIMIS) Site 124 Panoche (Latitude: 36 • 53'24N, Longitude: 120 • 43'53W) resides within the study area near Firebaugh, California at an elevation of 56 m [79]. This region is part of the San Joaquin watershed (SJWS), which includes cropland, pasture-based livestock farming, and forest land use types [80]. The major crops grown in the SJWS include nuts, vegetables, cotton, fruits, and field crops.…”

Section: A Study Areamentioning

confidence: 99%

“…The soils are mostly clay loams to fine sandy loams [81]. Approximately 38% of the SJWS total cropland is covered by nuts and fruits; about 36% by field crops such as corn, tomato, cotton, and beans; and less than 10% by grain crops [80]. The SJWS has a typical Mediterranean climate, with cool, rainy winters and hot, dry summers.…”

Section: A Study Areamentioning

confidence: 99%

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New Generation Hyperspectral Data From DESIS Compared to High Spatial Resolution PlanetScope Data for Crop Type Classification

Aneece

Foley

Thenkabail

et al. 2022

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Thoroughly investigating the characteristics of new generation hyperspectral and high spatial resolution spaceborne sensors will advance the study of agricultural crops. Therefore, we compared the performances of hyperspectral Deutsches Zentrum fur Luft -und Raumfahrt-(DLR) Earth Sensing Imaging Spectrometer (DESIS) and high spatial resolution PlanetScope in classifying eight crop types in California's Central Valley during the 2020 growing season. The DESIS sensor onboard the International Space Station collects data at 235 hyperspectral narrowbands (HNB) each with 2.55 nm bandwidth from 400-1000 nm and 30 m spatial resolution. In contrast, PlanetScope Dove-R data have 4 multispectral broadbands (MBB) with 3-4 m spatial resolution. We obtained best classification accuracies using 14 DESIS HNB from the August 2020 image, with an overall accuracy of 85% and producer's and user's accuracies of 72-100% and 75-100% respectively for the eight crops. The best classification accuracies using PlanetScope data were obtained using an image mosaic pair from June and August 2020; this resulted in an overall accuracy of 79% and producer's and user's accuracies of 56-100% and 61-100% respectively. Combining the best 14 DESIS HNB from August 2020 with the 4 PlanetScope MBB from August 2020 yielded an overall accuracy of 82% and producer's and user's accuracies of 65-100% and 60-94% respectively. On one-to-one single date comparisons of DESIS versus PlanetScope data, the hyperspectral data always outperformed high spatial resolution data in crop type classification. Nevertheless, high spatial resolution data will remain invaluable in assessing withinfield variability and crop biophysical/biochemical modeling in precision agriculture.

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“…High temperature, regional drought and extreme weather could bring a series of uncertain challenges to agricultural structure layout, planting system, diseases and pests, land use and infrastructure construction. In recent years, lots of relevant studies [4][5][6][7] have repeatedly proposed that crop productivity and yield will change due to the global warming, and the agricultural production pattern in many areas may also change.…”

Section: Introductionmentioning

confidence: 99%

Impact of Global Warming on China’s Agricultural Production

Liu¹

2022

E3S Web Conf.

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Global warming has had an important impact on China’s agricultural production, especially the intensified uneven distribution of water and heat resources and the increased frequency of extreme weather, resulting in a significant increase in the risk of agricultural production. Alleviating a series of negative effects of climate warming on agricultural production has always been the focus of governments and scholars, and it is also the basis of realizing agricultural sustainable development. This paper summarizes the impact of climate warming on China’s agricultural production from five aspects: agricultural planting system and structural layout, agricultural diseases and pests, agricultural management, agricultural ecosystem and agricultural production potential. Based on the above specific impacts, the urgent problems faced by China's agricultural production are pointed out, and the countermeasures to reduce the impact of climate warming are put forward from the aspects of policy, technology, research and cooperation, in order to provide references for other governments to deal with the negative impact of global warming, and promote the sustainable development of agriculture.

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Assessing impacts of climate variability and changing cropping patterns on regional evapotranspiration, yield and water productivity in California’s San Joaquin watershed

Cited by 24 publications

References 43 publications

Variabilidad climática en la planificación hídrica de la cuenca del río Cravo Sur (Casanare, Colombia)

Variabilidad climática en la planificación hídrica de la cuenca del río Cravo Sur (Casanare, Colombia)

New Generation Hyperspectral Data From DESIS Compared to High Spatial Resolution PlanetScope Data for Crop Type Classification

Impact of Global Warming on China’s Agricultural Production

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