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北方地区农田林网近些年发展很快。 本文用实际观测试验数据说明,农田林网可改善田间小气候,削减小气候高温峰值,降低风速、增加温度、减少蒸发,有利于农作物生长。在同等自然条件和农业技术措施下,农田林网使小麦增产17.5％,减少小麦需水系数19.4％,减少田间耗水10.1立方/亩。与无林网的相比,每年每亩可增加农林收益约160元。因此,灌区农田林网是发展农业、节约用水提高效益的有效措施。
Farmland forest network in northern areas developed rapidly in recent years. In this paper, the actual observation and experimental data show that farmland forest network can improve the microclimates in the field, reduce microclimate peak temperature, reduce wind speed, increase temperature, reduce evaporation, is conducive to crop growth. Under the same natural conditions and agricultural technology measures, farmland forest net increased wheat by 17.5%, wheat water reduction by 19.4% and field water consumption by 10.1 cubic meters / mu. Compared with no forest network, every year can increase the income of agriculture and forestry about 160 yuan. Therefore, irrigated farmland forest network is to develop agriculture, water conservation and effective measures to improve efficiency.