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金乡地处鲁西南黄河冲积平原,海拔35-39.5米。年平均气温13.2℃,降雨量一般在740毫米左右。是内陆盐碱较重的县,全县94万亩耕地,盐碱地约占32.5% 近几年来,我们通过深翻整地,开沟排碱,严格掌握造林季节,采用小苗造林等措施,使全县16,000多亩盐碱地营造刺槐林获得成功,2年生幼林平均高达5.2米,平均地径11.3厘米。1.深翻整地,开沟排碱。于冬季将造林地全面深翻40厘米后,每隔5米挖一条深80厘米,上口宽1米,底宽30厘米的排碱沟,筑起5米宽的台田面。翌年春季造林,每个台田面栽树2行,规格3×1.5米(见下图)。
Jin Xiang is located in the southwest of the Yellow River alluvial plain, 35-39.5 meters above sea level. The annual average temperature of 13.2 ℃, rainfall is generally about 740 mm. It is a county with heavier inland salinities, with a total area of 940000 mu of cultivated land and 32.5% of saline-alkali land. In recent years, we strictly controlled the planting season, The success of planting Robinia pseudoacacia into 16,000 mu of saline-alkali land in the county is as high as 5.2 meters for two-year-old young trees with an average diameter of 11.3 centimeters. 1. Deep and tidy, ditch row alkali. In winter, afforestation land will be fully slashed 40 cm deep, every 5 meters to dig a deep 80 cm, the mouth width of 1 m, the bottom width of 30 cm of alkali discharge ditch, built 5 meters wide of the table field. In the spring of next year, each tree is planted with 2 rows of trees, measuring 3 × 1.5 meters (see below).