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西宁市北山绿化中部分地区因自然地势陡峭，在绿化灌溉过程中易发生径流并造成严重的水土流失，导致树木生长发育不良，严重影响了树木成活率。针对上述原因，在西宁市北山林场实施节水滴灌试验，初步结果表明，节水滴灌造林技术可以充分利用原有基础设施，采用自压式分级供水，灌溉水直接注入林木根部，各分配器平均出水量为１．９７８ｌ／ｍｉｎ，土壤初次渗透速率为２．１３ｍｍ／ｍｉｎ，稳定渗透速率为１．３７ｍｍ／ｍｉｎ，无径流和跑水现象发生，水分利用率是常规灌溉方式的５—１０倍，是一项投资少，见效快的实用技术。
Due to steep natural terrain, part of the Beishan afforestation in Xining City is prone to runoff and serious soil erosion during the process of afforestation, resulting in poor growth and adversely affecting the tree survival rate. According to the above reasons, the experiment of water-saving drip irrigation was conducted in Beishan Forest Farm, Xining City. The preliminary results showed that water-saving drip irrigation afforestation technology can make full use of the original infrastructure, using self-pressure grading water supply, irrigation water injected directly into the roots of trees, The water inflow rate was 1.978l / min, the initial soil infiltration rate was 2.13mm / min, the steady infiltration rate was 1.37mm / min, and no runoff and run-off occurred. The water use efficiency was 5-10 times of that of conventional irrigation , Is a less investment, quick and effective practical technology.