Temperature (maximum and minimum) was predicted to increase during all three rice-growing seasons (spring-summer, summer-autumn, and winter-spring). The Crop Estimation Resource and Environment Synthesis (CERES)-Rice model of the Decision Support for Agrotechnology Transfer (DSSAT) cropping system model was used to perform the simulations using local soil characteristics, meteorological data, and crop management following model calibration with local experimental data. The objective of this study was to determine the potential impact of climate change on rice yield in the Artibonite Valley of Haiti for future periods (near-term: 2010-2039 and mid-century: 2040-2069) under two Representative Concentration Pathways (RCPs 4.5 and 8.5) defined by the Fifth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). Crop management, poor soil conditions, and weather uncertainty affect rice production in this region. Rice (Oryza sativa) is one of the major crops in the world and one of the most consumed agricultural products in Haiti, with the main production area in the Artibonite Valley. MarkSim climate data linked with DSSAT provide a means to simulate climate change impacts on crop yield.Ībstract.
The average annual rice yield in the Artibonite Valley is expected to decrease. Rice yield decreased in the spring-summer and summer-autumn seasons and increased in the winter-spring season. This type of information is also a potential resource available to farmers to make informed decisions on timely cultivation adjustments and variety selections for specific climatological areas. Regionally, earlier SSd, later SMd, longer PGS, and larger GAT10 values were projected for southern regions in Guangdong, Guangxi, and Hainan. In addition, as the climate continued to warm, GAT10 levels would likely continue in an upward trend and were predicted for 2081–2095 to reach 500–2500 ☌
A comparison of the relative contributions of SSd and SMd to PGS indicated that higher levels of SMd contributed prominently in the PGS increase. Within these same periods using RCP8.5, PGS advanced 1–50, 31–90, 41–90, and 51–90 days, respectively. A comparison of RCP4.5 and RCP8.5 scenarios indicated that SSd advanced by 1–39 and 1–49 days in 2081–2095 relative to the baseline period of 2001–2015 while SMd was postponed by 11–60 and 11–70 days, respectively. The trends predicted were advancements in SSd and delays in SMd across major areas of China. The thermal indices of secure sowing date (SSd), secure maturation date (SMd), potential growing season (PGS), and growing accumulated temperature ≥ 10 ☌ (GAT10) were explored in future sub-periods under two greenhouse gas emission scenarios (RCP4.5 and RCP8.5). The use of high-resolution projections derived from statistical downscaled global climate models and dynamic downscaled regional climate models can assist in maximizing yield for double-season rice. DeLiberty, he would serve for another 4 year term.Maintaining the current levels of rice production in the face of future climate changes is an enormous challenge for agriculture. Additionally, Mr. DeLiberty has been actively involved and interested in the California Association of LAFCos (CALAFCO) by participating in the annual conferences.
Mr. DeLiberty has been an active Commissioner attending most Commission meetings since his appointment. DeLiberty was appointed to the Yolo LAFCo as a Alternate Public Member in July 2017 after a public recruitment process. The Yolo LAFCo Policy and Procedures for the selection and appointment of the Yolo LAFCo Regular and Alternate Public Member was amended In March 2011 to allow the Commission to reappoint an incumbent before their term of office expires. Mr. DeLiberty has indicated his interest in continuing to serve as the Yolo LAFCo Alternate Public Member. Return to the Search Page Return to the AgendaĬonsider and approve reappointment of Richard DeLiberty as the Alternate Public Member to another four-year term through May 2025Ĭonsider and approve reappointment of Richard DeLiberty as the Alternate Public Member to another four-year term through May 2025.Īlternate Public Member Richard DeLibery's term of office expires May 2021.
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