论文部分内容阅读
一、前言 盘锦地区位于辽河右侧,系滨海冲积平原。地表高程为2.0—3.6米,成土母质系含盐分较高的滨海沉积物;因而土质粘重。盐渍程度强,含盐量为0.2％—1％,局部高于2％以上,属于滨海氯化物盐七及盐化草甸土。 年均温8.89℃,年雨量663.2毫米,年蒸发量1461.04毫米,无霜期160多天。
I. Introduction Panjin region is located in the Liaohe River, Department of alluvial plains. Surface elevation of 2.0-3.6 meters, into the soil parent material with higher salt content of the coastal sediments; so soil sticky. The degree of salinity is strong, the salt content is 0.2% -1%, and the local is higher than 2%, belonging to coastal salt salt seven and saline meadow soil. The average annual temperature of 8.89 ℃, annual rainfall of 663.2 mm, the annual evaporation of 1461.04 mm, frost-free period of 160 days.