1) Arid periods
春旱年型
2) typical drought and waterlog
典型旱涝年
1.
By investigating distribution and change of rainfall from 1961 to 2000 with analyses of empirial orthogonal function,wavelet and fractal dimension,the typical drought and waterlog were confirmed.
利用黄土高原40 a降水资料,采用EOF、小波分析和计算分维数等方法,确定典型旱涝年份,分析典型旱涝年降水量和频次变化特征。
3) Spring drought
春旱
1.
The monitoring and forecasting for early spring drought and spring drought in Hedong region in Gansu province;
甘肃河东早春旱和春旱的监测与预测
2.
Trend of spring drought in Shanxi Province and its influence on agriculture;
山西省春旱趋势及对农业的影响
3.
Variation of spring drought in Guangdong Province in recent 48 years;
近48年来广东春旱的变化
4) Typical flood and drought years
典型旱涝年夏季
5) drought year
旱年
1.
Fuzzy assessment method and it s application in drought year;
旱年模糊评价方法及其应用
2.
The experiment adopts different ratios of N,P and K fertilizer,and the relationships among the ratio of fertilizer,soybean yield,use ratio of fertilizer and economic benefit are studied in north black soil district of China in drought year.
试验采用氮磷钾的不同组合,对氮磷钾施用量的配比与北部黑土区旱年大豆产量间的关系及对肥料利用率和经济效益的影响进行了研究。
6) spring drought
春季干旱
1.
The spring drought pattern in shallow-mountain agricultural area in East Qinghai from 1980 to 2002 is analyzed by using dry-soil depths data of 10 meteorological stations.
利用青海东部浅山农业区10个站点1989~2002年的干土层厚度定位监测资料,分析了春季干旱的发生规律。
补充资料：春旱
1.春季的干旱。
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