THE DISASTER GRADES OF LOW TEMPERATURE AND SPARE SUNLIGHT IN GREENHOUSE
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Low temperature and spare sunlight is one of the main disaster of vegetable production in greenhouse. It is necessary to estimate the degree of the disaster to vegetable in daily weather service. According to the observational data and the damage degree of vegetable in the past years, the grades of low temperature and spare sunlight were established. The space-time distribution results of the low temperature and spare sunlight are presented in all regions of Hebei Province. After the 1980s,the frequency that low temperature and spare sunlight occurrs increases obviously than the 1960s and 1970s.Its frequency and damage degree decrease evidently with the latitude increasing in all regions of Hebei Province.
Keywords:
Project Supported:
Clc Number:
S626.5
You are thevisitors
Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.