农田防护林的防护及增产效益,在省外普遍得到重视,在云南是否需要农田防护林,亦应得到有关_疗面的关注。农田防护林不仅具有防风固沙、减少农业气象灾害的功能,而且还有提高农田生态系统的可塑性和稳定性,使农作物稳产高产的作用。试验证明,农田防护林中小麦增产10—25％,水稻 The protection of farmland shelterbelts and the benefits of increased production are generally valued outside the province. Whether farmland shelterbelts are required in Yunnan should also receive the attention on the treatment side. Farmland shelterbelt not only has the function of windbreak and sand fixation, reducing agricultural meteorological disasters, but also improves the plasticity and stability of farmland ecosystems and makes the crops stable and high yield. Tests show that farmland shelterbelt wheat yield 10-25%, rice