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一、盐碱土的分布和形成昌潍地区盐土按其形成与分布可分为滨海盐士和内陆盐土两类.本区渤海沿岸一带,地势平坦低洼,呈现大片的盐碱地,面积共约237万余亩,占全区耕地的13.5%.主要分布于寿光、潍坊、昌邑等县的北部.这类土壤主要是受海潮侵袭而形成.据了解,清光绪5年2月7日有一次大潮,清光绪18年10月初5又有一次大潮.据此次实测最高水位达5米,吕家庄子房屋大部倒塌.1938年7月17日的大潮潮水位达4.56米,当时潮水到营子,大家洼在北砖窑、袁家屋子、蔡家秧子、灶户等处均被潮水淹没,下营厂里以南潮水直达唐家秧子及辛安庄后.
I. Distribution and Formation of Saline-Alkali Soils Saline soils in Chang-Wei area can be divided into two types: coastal saltians and inland saline soils in the area along the coast of the Bohai Sea, with flat and low-lying areas showing large areas of saline-alkali soil with a total area of about 2.37 million Accounting for 13.5% of the arable land in the region, mainly distributed in the northern part of Shouguang, Weifang and Changyi counties, etc. These kinds of soils are mainly formed by the invasion of the tide and it is known that there was a tide on February 7, , The Qing Emperor Guangxu 18 early October 5 there is a tide.According to the measured maximum water level of 5 meters, most of the houses collapsed in Lu Jia. July 17, 1938 the tide of the tide reached 4.56 meters, when the tide to Yingzi , We wa in the northern brick kiln, Yuan house, Cai house seedlings, cooks and other places are submerged by the tide, the camp plant south of the tide direct Tang Tang Soya and Xin An Zhuang.