Extreme-low temperature research and micro-climate zone selection for planting fruit tree in Xiapu County in winter of 2003
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摘要: 考察点晴天坡地逆温表现明显,晴天坡地辐射逆温和海洋调温同时存在使坡地逆温呈现复杂化趋势,由于山坡晴天辐射逆温效应和水体增温效应,比霞浦县气象站极端最低气温观测值(4.8℃)高1℃以上的地段属龙眼、荔枝的次适宜区或适宜区。应选择纬度偏南、山坡中上部、离海距离0.3-1.0 km的地方建园,同时在霞浦县的南亚热带果树生产中应采取一些有效的防冻栽培措施。Abstract: The study indicated that temperature inversion on fine day was evident, it became more complex owing to temperature regulation of ocean at the same time.Because of temperature inversion on fine day in brae and temperature increasing by water body, the zone was 1℃ higher than extreme-low temperature in local area, so it suited or hypo-suited for planting litchi and longan.The orchard should be selected in south, above middle part of hill, and 0.3-1.0 kilometre far from coastline, and some effective measures should be used to avoid the freeze injury in planting south subtropical fruit trees.
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Key words:
- Fruit tree /
- Winter /
- Low temperature /
- Freezing hazard
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