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采用生物、化学和物理方法对盐碱化草地治理进行了比较研究.生物方法采用枯草处理;化学方法采用石膏处理;物理方法采用铺沙处理,种植羊草、野大麦和碱茅3种牧草.结果表明,3种方法均能降低土壤pH值、电导率和增加土壤含水率.在生物治理中,羊草和野大麦在枯草量达1500g·m-2,碱茅在枯草量达1000g·m-2时,便可良好生长.在化学治理中,石膏施用量达1.25kg·m-2,即可达到改良效果.在物理方法治理中,羊草和野大麦在沙层厚度为13cm,碱茅在11cm时即可正常生长发育.
The biological, chemical and physical methods were used to study the salinized grassland management. The biological method adopts the hay treatment, the chemical method uses the gypsum treatment, and the physical method adopts the sanding treatment to grow the three kinds of pasture of the sheep grass, the wild barley and the alkali grass. The results show that all three methods can reduce soil pH, conductivity and increase soil moisture content. In biological management, Leymus chinensis and wild barley grow well under the condition of 1500g · m-2 of hay and 100g · m-2 of hay. In chemical treatment, gypsum application rate of 1.25kg · m-2, to achieve improved results. In the physical methods of governance, Leymus chinensis and wild barley in the sand layer thickness of 13cm, Alkali Mao at 11cm when the normal growth and development.