CAJ | 학술논문

亚热带稻区是我国重要的粮食生产基地,但季节性干旱对水稻生产构成了严重威胁,尤其是大旱导致水稻产量大幅度下降,直接影响着我国粮食安全。文章确定了亚热带稻区大旱风险诊断的标准,统计得出衡阳盆地大旱发生频率为35%。以衡阳盆地2003年大旱为例,从干旱危险性与水田系统旱灾脆弱性两方面入手,阐述了水稻旱灾巨灾的形成机理,提出从整治水利工程和建立生态减灾模式达到安全减灾的目的。
아열대도구시아국중요적양식생산기지,단계절성간한대수도생산구성료엄중위협,우기시대한도치수도산량대폭도하강,직접영향착아국양식안전。문장학정료아열대도구대한풍험진단적표준,통계득출형양분지대한발생빈솔위35%。이형양분지2003년대한위례,종간한위험성여수전계통한재취약성량방면입수,천술료수도한재거재적형성궤리,제출종정치수리공정화건립생태감재모식체도안전감재적목적。
Subtropical Rice Area is an important grain production base in China, hut seasonal drought has a serious threat to rice production. Especially big drought leads to fall substantially in rice output and directly affects the safety of our country food. The risk grade of drought disaster in subtropical rice area was determined in the article. The drought occurrence frequency is 35 ~ through the statistical analysis method in Hengyang Basin. The formation mechanism of huge rice drought risk in Hengy- ang Basin was elaborated from the forming of drought hazard and agricultural vulnerability. The measures were put forward in renovating hydraulic engineering and establishing agricultural pattern through implementation of ecological measures so as to re- alize the goal of safety and disaster reduction.