Impacts of Accumulated Temperature Changes on the Maize Belt in Heilongjiang Province

Long Hai-li; Xie Rui-zhi; Li Shao-kun; Zhang Shu-quan; Ming bo; Liu Yue-e; Ma Da-ling; Gao Shi-ju
November 2013
Journal of Applied Sciences;2013, Vol. 13 Issue 22, p4961
Academic Journal
Global warming has altered the distribution of the maize (Zea mays) belts in China. Climate change has important impacts on regional agricultural planning, especially in Heilongjiang Province. Heilongjiang is the northernmost province in China and is the main production area of maize but is also the most sensitive to temperature changes. In the 1980s, the planted area of maize was divided into five belts in Heilongjiang Province, however, since the 1980s the mean air temperature has increased by 0.77°C and the active accumulated temperature above 10°C has increased by about 200°C in the 2000 sec. These temperature increases have resulted in changes in the area planted with maize. Regional planning of maize planting in the 1980s could not be adapted to meet the demand. The active accumulated temperature above 10°C has typically been a main index used in regional planning. In this study, we have redefined the period of accumulated temperature above 10°C based on the maize growing season. The temperature required for maize germination and cessation differs from other crops, with the maize growing season being designated as the first day in a five consecutive day period with temperature = 10°C until the first frost. In the past, little attention was paid to the onset and length of the maize growing season. A different definition of the growing period would result in different heat distribution maps. An index of ecological divisions based on growing season would be more helpful for regional planning of maize production.


Related Articles

  • Plants Learn About Climate Change.  // Natural Life;Mar/Apr2007, Issue 114, p36 

    The article reports on the findings of the study regarding the effects of climatic changes on plants conducted by researchers at the University of California. The study found that plants with short life cycles can adapt in just a few years to climate change, which in turn means that...

  • Projected increase in continental runoff due to plant responses to increasing carbon dioxide. Betts, Richard A.; Boucher, Olivier; Collins, Matthew; Cox, Peter M.; Falloon, Peter D.; Gedney, Nicola; Hemming, Deborah L.; Huntingford, Chris; Jones, Chris D.; Sexton, David M. H.; Webb, Mark J. // Nature;8/30/2007, Vol. 448 Issue 7157, p1037 

    In addition to influencing climatic conditions directly through radiative forcing, increasing carbon dioxide concentration influences the climate system through its effects on plant physiology. Plant stomata generally open less widely under increased carbon dioxide concentration, which reduces...

  • Perceived Effects of Climate Change on Transhumance Pastoralists in Ogun State, Nigeria. Ayanda, I. F.; Oyeyinka, R. A.; Salau, S. A.; Ojo, F. // Journal of Agricultural Science (1916-9752);Apr2013, Vol. 5 Issue 4, p190 

    The study examined perceived effects of climate change on grazing land, herds' performance and examined the coping strategies of the pastoralists to climate change. Multi-stage sampling technique was used to select 120 respondents for the study. Data were analyzed using percentages, frequencies,...

  • Watching the Weather. Ruscoe, Michael // Know Your World Extra;12/13/2002, Vol. 36 Issue 6, p12 

    Offers information on global warming. Signs of global warming; Effects of global warming; Steps to slow global warming.

  • Global warming Hulme, Mike // Progress in Physical Geography;Mar1993, Vol. 17 Issue 1, p81 

    No abstract available.

  • Global Climate Chang: Predictions and Observations. Rosenzweig, Cynthia // American Journal of Agricultural Economics;Dec89, Vol. 71 Issue 5, p1265 

    Examines the projections of climate changes as simulated by global climate models. Increases in trace gases and global surface temperature; Discussion of the links among the predictions and observations concerning global climate change; Nature and dynamics of global climate change; Response of...

  • Global warming and scientific consensus. Rougemont, C.De // Australia & World Affairs;Spring95, Issue 26, p39 

    Discusses various global warming and climatic change issues addressed by scientists during the Abrupt Climatic Change meeting in France in 1985. Evidence of abrupt climatic change since the end of the Ice Age; Concerns regarding mathematical models used to predict climates; Human contributions...

  • Climate-change risks call for vigilance. Veysey, Sarah // Business Insurance;7/15/2002, Vol. 36 Issue 28, p17 

    Focuses on the need if local authority risk managers to be aware of the hazards accompanied with the global climate change. Concern over the increased flooding stemming from climate change; Result of global warming on rainy seasons; Possibility of dam breaks.

  • Global Environmental Snapshot.  // Bahamas Country Review;2009, p105 

    The article provides an overview on the global environmental condition in 2009 in countries worldwide, including Africa, Asia and the Pacific and Central Asia.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics