J4 ›› 2007, Vol. 25 ›› Issue (2): 77-81.

• 论文 • 上一篇    下一篇

半干旱区紫花苜蓿地上干物质量增长动态

石界1,2   

  1. 1.中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,
    甘肃兰州730020;2.甘肃省定西市农业气象试验站,甘肃定西74300
  • 收稿日期:2006-09-17 修回日期:2007-03-14 出版日期:2007-06-30 发布日期:2007-06-30
  • 作者简介:石界(1974一),甘肃静宁人,工程师,从事农业气象应用及服务工作.E-mail:nszsj@tom.com
  • 基金资助:

    兰州区域气象中心开放实验室项目“农牧区草业生态观测试验及气候对草业生产影响评估方法研究”(1ab2002—4)资助

Dry Matter Amount Growing Trend of Alfalfa in Semi—-arid Region of Gansu

SHI Jie1,2   

  1. 1.Institute ofArid Meteorology,CMA,Key Laboratory ofArid Climatic Change and Reducing Disaster of Gansu Province,Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA,Lanzhou 730020,China;2.The Agricultural Meteorological Experiment Station ofDingxi,Dingxi 743000,China
  • Received:2006-09-17 Revised:2007-03-14 Online:2007-06-30 Published:2007-06-30

摘要:

根据甘肃半干旱地区紫花苜蓿试验资料,用Logistic方程描述干物质增长规律,建立模型,分析其干物质变化特性,得出甘肃半干旱区紫花苜蓿生长特点。

关键词: 紫花苜蓿, 干物质量, 动态

Abstract:

on the experimental data of alfalfa in semi—arid region of Gansu,the dry matter growing curve is simulated by the Logistic equation,and the variation characteristic of the dry matter is analyzed.Finally,the growing characteristic of alfalfa is obtained in semi—arid region of Gansu.

Key words: alfalfa, dry matter amount, growing trend

中图分类号: