2) Drought periods
干旱期
1.
Multi-objective planning method for reservoir water-supply risk analysis during drought periods;
干旱期水库供水风险分析的多目标规划方法
3) drought period
干旱期
1.
Analysis on the applicability of water-supply risk indexes for water resources system during drought period;
干旱期水资源系统供水风险指标适用性分析
2.
Several major indexes are described, which are often employed for expressing reservoir operation performance in drought period, and necessity of researches on water-supply projects operation and regulation in drought are stressed.
阐述了干旱期供水工程运行调度研究的必要性以及目前水资源研究领域普遍使用的表达干旱期供水水库运行性能的一些主要指标 ;对普遍使用的求解运行策略的限制供水规则模型和混合整数规划模型进行了恰当描述 ;最后介绍了混合整数规划模型的一应用实例 ,说明研究方法的可行
3.
In this paper, risk theory has been used in the management of water resources during drought period, and the corresponding indexes such as risk, reliability, resiliency and vulnerability have been given.
把风险分析方法用于干旱期的水资源管理，给出了相应的风险、可靠性、恢复性和易损性等具体的风险指标。
4) short-term drought
短期干旱
1.
Effects of nitrogen on the dry matter weight,nitrogen accumulation and distribution,yield and fiber quality of cotton under short-term drought and after re-watering during flowering and boll-forming stage were studied.
通过盆栽试验进行水分(正常灌水和干旱后复水)和施氮处理(0、240、480kgN·hm-2),研究花铃期短期干旱再复水后氮素对棉花各器官干物质重、氮素累积与分配及产量与品质的影响。
补充资料：花期
植物开花的时间：梅花的～在冬季 ㄧ这种月季 ～特别长。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条