基于作物水分亏缺指数方法的儋州橡胶林干旱监测  

Drought Monitoring of Rubber Forests in Danzhou Based on the Crop Water Deficit Index Method

作　　者：梁彩红 蔡杏尧 陈小敏[2,3] 吴青兰 LIANG Caihong;CAI Xingyao;CHEN Xiaomin;WU Qinglan(Danzhou Meteorological Bureau,Danzhou,Hainan 571700,China;Climate Center of Hainan Province,Haikou,Hainan 570203,China;Key Laboratory of South China Sea Meteorological Disaster Prevention and Mitigation of Hainan Province,Haikou,Hainan 570203,China)

机构地区：[1]海南省儋州市气象局,海南儋州571700 [2]海南省气候中心,海南海口570203 [3]海南省南海气象防灾减灾重点实验室,海南海口570203

出　　处：《热带农业科学》2023年第10期1-6,共6页Chinese Journal of Tropical Agriculture

基　　金：海南省气象局科研项目(No.hnqxSJ202131);海南省南海气象防灾减灾重点实验室开放基金(No.SCSF201808)。

摘　　要：为解决橡胶林干旱灾害等级指标的不足,通过分析儋州地区橡胶林干旱灾情调查资料,首次制订基于作物水分亏缺指数方法(CWDIa)的橡胶林干旱等级指标,并通过对比验证,分析1961—2019年橡胶林不同物候期的水分亏缺距平指数。结果表明:橡胶树第二蓬叶抽发期、第三蓬叶抽发期、秋果成熟期几乎不会出现干旱,而第一蓬叶抽发期、春花期、落叶始期和落叶盛期出现干旱的概率很高,平均每10年出现6~7次干旱,尤其是落叶始期,59年中出现42年干旱,中旱20年,重旱5年,特重旱6年。研究结果弥补了橡胶林干旱等级指标的不足,对橡胶林开展实时干旱监测预警具有应用价值,也能很好地指导橡胶生产、提质增效、趋利避害,为天然橡胶可持续发展提供科学依据。To solve the shortage of the rubber drought meteorological disaster grade index,this paper analyzes the investiga-tion data of rubber drought disasters in the Danzhou area and formulates the drought grade index of rubber forests based on the crop water deficit index(CWDIa)method for the first time,and analyzes the water deficit anomaly index of rubber forests in different phenological-periods from 1961 to 2019.The results showed that there was almost no drought in the second canopy leaf extraction period,the third canopy leaf extraction period,and the autumn fruit maturity period of rubber,but the probabil-ity of drought in the first canopy leaf extraction period,the spring flowering period,the beginning of defoliation and the peak of defoliation was very high,with an average of 6-7 droughts every ten years;Especially at the beginning of defoliation,42 years of drought occurred in 59 years,20 years of moderate drought,five years of severe drought and six years of extreme drought.The research results make up for the shortage of drought-grade indicators of rubber forests,have application value for real-time drought monitoring and early warning of rubber forests,and can also guide rubber production,improve quality and efficiency,pursue advantages and avoid disadvantages,and provide a scientific basis for sustainable development of natural rubber.

关 键 词：天然橡胶 物候期 干旱灾害 作物水分亏缺指数 儋州 

分 类 号：S16[农业科学—农业气象学]