自然资源学报 ›› 1987, Vol. 2 ›› Issue (1): 71-83.doi: 10.11849/zrzyxb.1987.01.008

• 论文 • 上一篇    下一篇

中国农业气候区划

李世奎   

  1. 国家气象局气象科学研究院
  • 出版日期:1987-03-25 发布日期:1987-03-25

AGROCLIMATIC REGIONALIZATION OF CHINA

Li Shikui et al.   

  1. Academy of Meteorological Science, State Meteorological Administration
  • Online:1987-03-25 Published:1987-03-25

摘要: 中国农业气候区划是反映全国农业生产与气候关系的区域划分。区划的主要目的是为实现农业区域化、专业化、现代化而制定的农业区划和规划提供农业气候的依据。其任务在于揭示农业气候的地域差异,分区阐述农业气候资源和农业气象灾害,本着发挥农业气候资源优势,避免和克服不利气候条件,以及因地制宜,适当集中的原则,着重对合理调

关键词: 农业气候区, 气候区划, 农业气候带, 中国农业, 年极端最低气温, 平均气温, 积温, 气候生产潜力, 最冷月, 南温带

Abstract: Based on the 1951-1980 climatic data of about 500 stations and a wealth of the agro-climatic information, a summary of the agroclimatic regionalization of China is given in this paper. This regionalization is made up of three levels.The first level, there are three main agroclimatic areas. The east monsoon main area, humid and subhumid, with tolerable and plentyiful rainfall in the warm period, has good climatic productive potentiality. In the northwest main area, water deficit greatly himders the function of light and heat factors. Its southern boundary is set by the 50% frequency line of the annual precipitation ≥ 400mm, with number of days of gale wind as a subsidiary index. In the Qinghai-Xizang Plateau main area, the heat insufficiency hampers the full utilization of the light-water resources. The accumulated temperature (above 0℃) of 3000℃ and the warmest monthly mean temperature of 18℃ are taken together as the boundary of this area.The second level: Fifteen agroclimatic zones are delineated based on the heat demand of the cropping systems and main crops. The east monsoon main area, is divided into ten agroclimatic zones using mean annual lowest temperature and the accumulated temperature above 0℃ as the criterions. In the northwest main area, the accumuluted temperature above 0℃ is used as index. There are two zones, i. e. the arid middle temperate zone and the arid south temperate zone. In the Qinghai-Xizang Plateau main area, ∑t( ≥ 0℃) and the temperature of the warmest month are taken as criterions for delineation. On this basis, Qinghai-Xizang Plateau is divided into three agroclimatic zones, i. e. plateau temperate zone, plateau subfrigid zone and plateau frigid zone.The third level reflects agroclimatic types. Based on regional agroclimatic features, with emphasis on moisture condition and agroclimatic calamity, fifty-five agroclimatic regions arc delineated (see Fig. and Tab.).