自然资源学报 ›› 1998, Vol. 13 ›› Issue (4): 289-296.doi: 10.11849/zrzyxb.1998.04.001

• 论文 •    下一篇

利用生产模拟对青藏高原小麦高产原因的分析

张宪洲1, 刘允芬1, 张谊光1, 周允华2   

  1. 1. 中国科学院自然资源综合考察委员会;
    2. 中国科学院地理研究所
  • 收稿日期:1998-03-04 修回日期:1998-05-29 出版日期:1998-12-25 发布日期:1998-12-25
  • 作者简介:张宪洲,男,1964年7月生,助理研究员。1991年5月在中国科学院自然资源综合考察委员会获硕士学 位。现主要从事农业资源利用、自然植被生产力、青藏高原农田生态系统的能量输入和产量形成及其对全球 变化的响应等方面的研究。发表)我国自然植被净第一性生产力的估算与分布?、)青藏高原4~10月太阳总 辐射的分光测量?和)青藏高原4月~10月光合有效量子值的气候学计算?等论文10余篇。
  • 基金资助:

    国家自然科学基金,国家攀登项目

A STUDY ON CAUSES OF HIGH YIELD WINTER WHEAT IN TIBET PLATEAU BASED UPON SIMULATION OF CROP PRODUCTION

ZHANG Xianzhou1, LIU Yunfen1, ZHANG Yiguang1, ZHOU Yunhua2   

  1. 1. Commission for Integrated Survey of Natural Resources, CAS, Beijing 100101;
    2. Institute of Geography, Chinese Academy of Sciences, Beijing 100101
  • Received:1998-03-04 Revised:1998-05-29 Online:1998-12-25 Published:1998-12-25

摘要: 在大量的实测资料基础上,通过模拟计算得到了在当前气候条件下、水肥适宜的青藏高原冬小麦干物质累积动态曲线。模拟计算表明:青藏高原夏季气候温凉,小麦生育期延长,因而干物质累积时间长,高原小麦高产主要以干物质累积时间长取胜,有利的夏季温度条件是高原小麦高产的最主要原因;青藏高原冬小麦干物质潜在产量可达32t/hm2·a,籽粒潜在产量可达144t/hm2·a,为平原的145倍。

关键词: 青藏高原, 冬小麦, 生产模拟, 高产原因

Abstract: Based on measurement data of winter wheat field in the Tibet Plateau, the dynamic change curves of dry matter production of winter wheat under present climatic as well as suitable soil water and fertilizer conditions are obtained by means of simulation models. The results show that on the Tibet Plateau, the growing period of wheat is prolonged because the climate in summer is cool. And the high yield of wheat in Tibet Plateau is due to the long accumulating time of dry matter. The advantageous temperature in summer is the key reason of the high yield of the winter wheat in the Tibet Plateau. The potential yield of the dry matter of the winter wheat in the Tibet Plateau is 32t/ha.The potential yield of the grain is 14 4t/ha and 1 45 times as much as that on the plain.

Key words: Tibet Plateau, simulation of crop production, causes of high yield of wheat