论文部分内容阅读
今年的防汛工作,在各级防汛指挥部的领导下,在全国人民上下一致的努力下,终於战胜了洪水,使大部河流安全渡过汛期,除淮河流域以外,基本上保证了全国农田的普遍丰收,得到了相当大的成绩。首先珠江流域因地处亚热带,洪汛既早,雨量亦大,年平均雨量多在一千四百至一千九百公厘之间,其中北江流城雨量尤大,清遠站年平均雨量达二千四百公厘,粤北、桂北雨量多降於五月中,雨水降落地面後,由於地势关系,急剧汇入江河,故各河水位涨落变化颇
This year’s flood control work, under the leadership of the flood control headquarters at all levels and finally, with the concerted efforts of the entire Chinese people, finally defeated the flood and made most of the rivers flow through the flood season safely. In addition to the Huaihe River Basin, basically the entire farmland The general bumper harvest has yielded considerable results. First of all, the Pearl River Basin is located in the subtropical, flood flood early, rainfall is also large, the average annual rainfall more than 1400 to 1999 mm, of which the rainfall is particularly large Beijiang River, Qingyuan station average annual rainfall of up to Two thousand four hundred mm, north of Guangdong, Guangxi rainfall dropped in mid-May, the rain landed on the ground, due to the topography, the rapid import of rivers, so the river water level changes rather quite