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中国农学通报 ›› 2016, Vol. 32 ›› Issue (8): 122-128.doi: 10.11924/j.issn.1000-6850.casb15110057

所属专题: 现代农业发展与乡村振兴 农业工程 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

河西东部设施农业风灾指标设计及其特征研究

郭小芹,刘明春,陈立夫,王旭红   

  1. (武威市气象局,甘肃武威 733000)
  • 收稿日期:2015-11-10 修回日期:2015-11-25 接受日期:2015-11-25 出版日期:2016-03-18 发布日期:2016-03-18
  • 通讯作者: 郭小芹
  • 基金资助:
    甘肃省气象局“设施农业气象灾害保险理赔指数研究”(2015-18)。

Wind Disaster Index Design for Facility Agriculture in Eastern Hexi Corridor of Gansu

Guo Xiaoqin, Liu Mingchun, Chen Lifu, Wang Xuhong   

  1. (Wuwei Meteorological Bureau, Wuwei Gansu 733000)
  • Received:2015-11-10 Revised:2015-11-25 Accepted:2015-11-25 Online:2016-03-18 Published:2016-03-18

摘要: 利用1980—2014年河西东部逐日最大与极大风速资料,回归构建长序列并以双条件约束设计风灾指标,定义轻度、中度、重度、特大等级区间。分析显示:研究区域中北部地区4—5月风害最为严重,灾害强度与集中度基本同步。在年际变化上轻度灾害多波动,中重度灾害明显减少,特大灾害时有发生,北部地区风灾偏重,风灾综合指数从凉州、古浪、天祝、民勤、永昌、乌鞘岭逐渐增大。凉州、古浪为低值区域,可作为设施农业首选区域,天祝需要因地制宜,民勤要选择抗风性能良好的棚型,永昌则不适宜建设与推广。研究结果为风灾预警评估提供了参考指标,为设施农业规划布局提供了科学依据,且在一定程度上填补了风灾评估体系的空白。

关键词: 播种深度, 播种深度, 高粱, 出苗率, 地上部幼苗生长量, 胚轴

Abstract: Based on the daily maximum wind speed and the extreme wind speed data of eastern Hexi Corridor in Gansu from 1980 to 2014, the mathematical regression method was used to construct a long sequence of wind speed data, and then with double conditional constraint indicators, the authors defined the mild, moderate, severe and heavy grade range. The results showed that the north central region had the most serious wind disaster to facility agriculture between April and May, the disaster intensity and concentration degree were almost synchronous. In annual variation, the mild disaster had multi-fluctuation, moderate and serious disasters were significantly decreasing, heavy disasters occurred sometimes. Overall, the north region had particularly severe wind disasters, the wind disaster composite index increased in the order of Liangzhou, Gulang, Tianzhu, Minqin, Yongchang and Wushaoling. Because Liangzhou and Gulang had the smallest wind disaster composite index, they could be the primary choice of facility agriculture development in the region, Tianzhu County should adjust measures to local conditions in facility agriculture, Minqin should choose good wind resistance sunlight greenhouse, and Yongchang was not suitable for the promotion of facility agriculture. The results of the research could provide a reference for wind disaster forecasting and scientific layout of regional facility agriculture, and fill the gaps of regional disaster assessment system.

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