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。
Based 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.
出处
《干旱气象》
2007年第2期77-81,共5页
Journal of Arid Meteorology
基金
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"(Lab2002-4)资助
关键词
紫花苜蓿
干物质量
动态
alfalfa
dry matter amount
growing trend
