• Chỉ mục bởi
  • Năm xuất bản

Impact of historical climate variability on rice production in Mainland Southeast Asia across multiple scales

Frazier Graduate School of Geography, Clark University, Worcester, 01610, MA, United States|
Diane R. (39561718100) | Michael B. (57204663175); Wang | Bjoern Ole (56367117300); Kantar Department of Agronomy, Purdue University, West Lafayette, 47907, IN, United States| Katherine M. (57194658376); Sander Department of Tropical Plant and Soil Sciences, University of Hawai‘i at Mānoa, Honolulu, 96822, HI, United States| Malte F. (35423103700); Nelson Department of Oceanography and International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawai‘i at Mānoa, Honolulu, 96822, HI, United States| Bui Tan (55965429400); Stuecker International Rice Research Institute (IRRI), Hanoi, Viet Nam| Abby G. (54923448300); Yen East-West Center, Honolulu, 96848, HI, United States|

Anthropocene Số , năm 2022 (Tập 40, trang -)

ISSN: 22133054

ISSN: 22133054

DOI: 10.1016/j.ancene.2022.100353

Tài liệu thuộc danh mục:



Từ khóa: Cambodia; Laos; Mekong River; Myanmar; Red River [United States]; Thailand; United States; Viet Nam; climate change; climate variation; correlation; crop yield; El Nino-Southern Oscillation; food production; historical record; La Nina; land management; meridional circulation; rice; summer
Tóm tắt tiếng anh
Climate change is expected to put significant pressure on global food production. Although previous work has explored impacts of climate, management, and genetics on food production, additional research is needed to examine the effects of large-scale climate modes at local and regional scales. This study explores the impact of climate variability on rice yield in Mainland Southeast Asia from 1961 to 2017 at three different spatial scales: the whole Mainland Southeast Asia region, country-level (Cambodia, Laos, Myanmar, Thailand, and Vietnam), and province-level for Vietnam. Annual rice yields over this period have nearly tripled with Vietnam experiencing the largest increases. Correlations between annual rice yield anomalies at the regional and country levels and climate data reveal clear influences of tropical climate variability associated with the El Ni�o-Southern Oscillation and the Pacific Meridional Mode. At the provincial level in Vietnam, many provinces show similar correlation patterns for the spring-summer season of rice (e.g., a co-occurring La Ni�a and positive phase of the Pacific Meridional Mode in the preceding boreal winter and spring are associated with increased yields in spring-summer rice). However, the late summer-fall season rice yield anomalies show much weaker correlations with tropical climate patterns. Variations across provinces were also noted, particularly between the Red River and Mekong River Deltas. The history of this 56-year period, which included the Vietnam-American War and changes in land management policies, makes it challenging to disentangle the effects of climate variability and social factors on rice yields in these areas. However, these results highlight the importance of using a multidisciplinary and multiscale approach to help inform local and regional decision-making. � 2022 Elsevier Ltd

Xem chi tiết