【摘 要】
：
2000年,寿光市遇到了近20年来最严重的干旱。全年累计降雨量421.2mm,比历年同期减少201.3mm,特别是1～7月份降雨仅有135.8mm。全市大小17条河道全部断流;2500多眼机井干涸;地
【机 构】
：
寿光市水利局,寿光市水利局,寿光市水利局
论文部分内容阅读
2000年,寿光市遇到了近20年来最严重的干旱。全年累计降雨量421.2mm,比历年同期减少201.3mm,特别是1～7月份降雨仅有135.8mm。全市大小17条河道全部断流;2500多眼机井干涸;地下水位自1975年以来急剧下降,平均下降了13.79m;农田受旱面积7.33万hm~2,其中绝产0.41万
In 2000, Shouguang City encountered the worst drought in nearly 20 years. The annual total rainfall 421.2mm, 201.3mm lower than the same period over the previous year, especially from January to July rainfall was only 135.8mm. The size of the city’s 17 rivers all cut off; more than 2,500 machine wells dried up; groundwater level dropped sharply since 1975, an average drop of 13.79m; farmland drought area of 73,300 hm ~ 2, of which 41,000
其他文献
Background Growing epidemiologic evidence has indicated that genetics can predispose individuals to the occurrence of lone atrial fibrillation (AF).The angioten
Background Bacteremia remains a significant cause of morbidity and mortality after kidney transplantation.This study was conducted to investigate whether the po
采用“空间序列代替时间序列”的方法,将植被恢复阶段划分为演替前期、演替中期和演替后期,并测定每一演替阶段中0~10,10~20,20~30,30~40 cm土层的土壤有机碳与全氮.结果表明
Background An accelerated muscle wasting was the pivotal factor for protein-energy wasting in end stage renal disease.However,very few researches have examined
2004年1月至2008年12月本院手术治疗小脑出血患者28例,效果良好,报道如下.rn1 资料与方法rn1.1 一般资料男18例,女 10例,年龄48～75,平均64岁.格拉斯哥(GCS)评分;3～5分6例,5～8分1
采用“空间序列代替时间序列”的方法，将植被恢复阶段划分为演替前期、演替中期和演替后期，并测定每一阶段植物群落特征及多样性指标.结果表明：(1)随着演替进行，地上生物总量和中
Background The efficacy of pemetrexed in the second-line treatment of Chinese patients with advanced non-small cell lung cancer (NSCLC) has been shown to be sim
Background Partial nephrectomy is currently the standard treatment for clinical T1 renal neoplasms,as it can provide oncologic outcomes equivalent to radical ne