Variability in climatology and agricultural production in China in association with the East Asian summer monsoon and El Niño Southern Oscillation

Fulu Tao, Masayuki Yokosawa, Zhao Zhang, Yousay Hayashi, Hartmut Grassl, Congbin Fu

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

The East Asian monsoon (EAM) and the El Niño Southern Oscillation (ENSO) determine climate variability over much of East Asia, affecting vulnerable grain markets and food security in China. In this study, we investigated the variability of climate and of agricultural production in China in association with the East Asian summer monsoon (EASM) and ENSO. Data from China showed that a strong EASM decreased fall temperature in Gansu and Sichuan Provinces in western China, as well as winter temperature in Heilongjiang Province in NE China and in Shandong and Anhui Provinces in eastern China. Summer rainfall in Hunan Province in southern China increased in weak EASM years. Summer temperature increased in Heilongjiang in NE China and Gansu Province in NW China during the La Niña phase. Summer rainfall decreased in Gansu Province in NW China during the El Niño phase. Among staple crops in China (rice, wheat, maize), maize production was very vulnerable to a strong EASM and El Niño phase. In Henan Province in central China, seasonal climate variability associated with EASM and ENSO resulted in about 14.4 and 15.6 %, respectively, of maize yield variability. Maize yield at the national scale decreased significantly by 5.2 % during the El Niño phase. Cropland area affected and damaged by floods in Hunan Province in southern China increased significantly by 11.3 and 8.5 %, respectively, in weak monsoon years. During the La Niña phase, total crop planting area increased significantly in Shandong, Henan and Anhui Provinces in central China, and in Heilongjiang Province in NE China; however, it decreased significantly in Sichuan Province in SW China. The large variability in seasonal climate and agricultural production in association with EASM and ENSO warrant applying EASM and ENSO information to agricultural and food market management.

Original languageEnglish
Pages (from-to)23-30
Number of pages8
JournalClimate Research
Volume28
Issue number1
Publication statusPublished - 2004 Dec 31
Externally publishedYes

Fingerprint

Climatology
Southern Oscillation
agricultural production
climatology
monsoon
Crops
Rain
summer
Temperature
maize
climate
province
agricultural market
food market
rainfall
crop
temperature
food security
rice
wheat

Keywords

  • Agriculture
  • China
  • Climate variability
  • ENSO
  • Food security
  • Monsoon
  • Warning system

ASJC Scopus subject areas

  • Environmental Chemistry
  • Environmental Science(all)
  • Atmospheric Science

Cite this

Variability in climatology and agricultural production in China in association with the East Asian summer monsoon and El Niño Southern Oscillation. / Tao, Fulu; Yokosawa, Masayuki; Zhang, Zhao; Hayashi, Yousay; Grassl, Hartmut; Fu, Congbin.

In: Climate Research, Vol. 28, No. 1, 31.12.2004, p. 23-30.

Research output: Contribution to journalArticle

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abstract = "The East Asian monsoon (EAM) and the El Ni{\~n}o Southern Oscillation (ENSO) determine climate variability over much of East Asia, affecting vulnerable grain markets and food security in China. In this study, we investigated the variability of climate and of agricultural production in China in association with the East Asian summer monsoon (EASM) and ENSO. Data from China showed that a strong EASM decreased fall temperature in Gansu and Sichuan Provinces in western China, as well as winter temperature in Heilongjiang Province in NE China and in Shandong and Anhui Provinces in eastern China. Summer rainfall in Hunan Province in southern China increased in weak EASM years. Summer temperature increased in Heilongjiang in NE China and Gansu Province in NW China during the La Ni{\~n}a phase. Summer rainfall decreased in Gansu Province in NW China during the El Ni{\~n}o phase. Among staple crops in China (rice, wheat, maize), maize production was very vulnerable to a strong EASM and El Ni{\~n}o phase. In Henan Province in central China, seasonal climate variability associated with EASM and ENSO resulted in about 14.4 and 15.6 {\%}, respectively, of maize yield variability. Maize yield at the national scale decreased significantly by 5.2 {\%} during the El Ni{\~n}o phase. Cropland area affected and damaged by floods in Hunan Province in southern China increased significantly by 11.3 and 8.5 {\%}, respectively, in weak monsoon years. During the La Ni{\~n}a phase, total crop planting area increased significantly in Shandong, Henan and Anhui Provinces in central China, and in Heilongjiang Province in NE China; however, it decreased significantly in Sichuan Province in SW China. The large variability in seasonal climate and agricultural production in association with EASM and ENSO warrant applying EASM and ENSO information to agricultural and food market management.",
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