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一是灌排。掌握好随水来又随水去的规律。造林地必须做到沟渠畅通,排灌配套,利用灌水或天然降水洗盐和淋盐。植树前用大水灌溉洗盐,植树后再用大水灌溉压盐。然后在地表盖草,防止返盐。同时,要注意雨季及时排水,旱季抓紧浇水。二是改土。造林前2-3年,将造林地深翻20厘米,四周筑埂围埝,埝埂高30厘米,再按造林设计的行数开沟,沟的宽深各40厘米,沟内铺一层绿肥或杂肥,再用土将沟填平,春秋两季大水漫灌1-2次。经试验,土体含盐量由原来的0.93-1.66%,下降到0.14-0.24%,生长的草本植物种类大量增加,
First, irrigation row. Master well with the water to go with the law. Afforestation must be able to smooth the ditches, irrigation and drainage facilities, irrigation or natural precipitation wash salt and salt. Planting trees with large irrigation before washing salt, planting trees and then flood irrigation pressure salt. Then cover the grass on the ground to prevent back to salt. At the same time, pay attention to timely drainage in the rainy season, pay close attention to watering in the dry season. Second, change soil. Two to three years before the afforestation, the afforestation will be turned 20 cm deep, surrounded by a radius of about 30 cm and a height of 30 cm. Then the ditches will be dug by the number of reforestation design. The ditches will be 40 cm wide and 40 cm deep. Green manure or mixed fertilizer, and then fill the trench will be filled with water, flood irrigation in spring and autumn and two seasons 1-2 times. After testing, soil salt content from the original 0.93-1.66%, down to 0.14-0.24%, a substantial increase in the growth of species of herbs,