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生态学杂志 ›› 1993, Vol. ›› Issue (2): 43-44.

• 研究报告 • 上一篇    下一篇

从生态位观点评价苏南地区种植业结构调整

高德明   

  1. 南京农业大学农学系, 210014
  • 出版日期:1993-04-10
  • 基金资助:
    农业部02-01-01-03课题

Evaluation of Cropping Structure Adjustlnents in Southern Jiangsu from the Viewpoints of Nicbe Tkeory

Gao Deming   

  1. Department of Agronomy, Nanjing Agricultural University, 210014
  • Online:1993-04-10

关键词: 青藏高原, UV-B辐射, 窄叶野豌豆, 生物量, 开花物候, 种子产量

Abstract: According to the concrete conditions in southern Jiangsu,the significance,necessity and possibility of ad-justing cropping structure are evaluated from the viewpoints of niche theory.The efficiencies of two crop-ping systems in utilizing paddy field niches are analyzed and the results show that the cropping pattern ofwheat intercropped with lettuce,followed by corn and late rice is an effective model to improve niche functions in the district.

Key words: Qinghai-Tibet Plateau, UV-B radiation, Vicia angustifolia, biomass, flowering phenology, seed yield.