摘要
通过对江西省春季低温时空分布特点的分析 ,指出江西省春季回暖的迟早既受纬度影响 ,也与海拔、地形、地貌等诸多因素有关 ,各地不同 ,各年也有差异。必须结合本地实际情况 ,确定早稻安全播种期 ,并采取一定措施可有效防御春季低温给江西农业带来的危害。对于江西省重要产粮区──赣北鄱阳湖区来说 ,则应尽快建立以防风护田林为主体的林网体系。
The temporal and spatial law of the spring low temperature in Jiangxi province is analysed. It is shown that the time when it is getting warm again after a cold spell in spring is influenced by latitude, elevation, and landform, and consequntly differs in different places and different years. For reducing the cold hazard to the crops in spring the safety sowing time of early rice should be correctly determined and the countermeasures against the cold damage should be suited to local conditions. In Poyand Lake region which is the important grain producing area in Jianxi, a shelter forest system should be built.
出处
《热带地理》
北大核心
2000年第3期215-218,共4页
Tropical Geography
关键词
江西
春季低温
安全播种期
时空分布
农业生产
Jiangxi Province
Poyang Lake region
Spring low temperature
Safety sowing time.
