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应用生态学报 ›› 1993, Vol. 4 ›› Issue (1): 42-46.

• 研究论文 • 上一篇    下一篇

我国南北气候过渡地区稻米品质的地域分布

张嵩午   

  1. 西北农业大学, 杨陵 712100
  • 收稿日期:1990-07-31 修回日期:1992-07-03 出版日期:1993-01-25 发布日期:1993-01-25
  • 基金资助:

    高等学校博士学科点专项科研基金资助课题

Regional distribution of rice grain quality in climatic transitional regions from north to south China

Zhang Songwu   

  1. Northwest Agricultural University, Yangling 712100
  • Received:1990-07-31 Revised:1992-07-03 Online:1993-01-25 Published:1993-01-25

摘要: 本文依据农业气候指标,运用模糊综合评判和定性聚类的方法,综合评价了所研究地区影响稻米品质的生态气候因子,并把该地区分为4个区域和9个亚区域,每个亚区的生态气候条件和稻米品质各有特色,且所有区域稻米品质变化具有共同的规律性.

关键词: 稻米品质, 农业气候指标, 地域分布, 土壤粒径分布, 土壤理化性质, 沙漠化, 荒漠草地, 土壤分形维数

Abstract: On the basis of agricultural climatic indices, the ecoclimatic factors affecting rice grain quality in regions investigated were comprehensively assessed by integrated fuzzy estimation method, and the regions were divided into areas by qualitative aggregation method. The variations of rice grain quality in all areas had the common regularity.

Key words: Rice grain quality, Agroclimatic index, Regional distribution, desert grassland., soil physical and chemical characteristics, soil fractal dimension, soil particle size distribution (PSD), desertification