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要发展林业,要提高生产经济效益,就要善于利用自然资源的特点,把农业低产田及弃耕地改造成为林业的高产田。 农业的低产除了栽培技术的因素外,在自然条件上无非是土壤结构差、肥力低。有盐碱、地下水高或因缺水等原因,使抗逆能力较低的农作物夺不了高产。而林木却具有庞大的根系和高大的树冠,抗性比农作物要强得多。首先是林木有庞大的根系,对土壤不同层次的水分、养分吸收利用率高,这样就可以减少地面水的浇灌次数和浇灌量;
To develop forestry, we must make good use of the characteristics of natural resources to transform the low-yielding agricultural land and abandoned farmland into a high-yielding field for forestry in order to improve the economic benefits of production. In addition to the cultivation of agricultural low-yielding factors, the natural conditions is nothing more than poor soil structure, low fertility. Saline, high groundwater or due to lack of water and other reasons, to make the crop less resistant to high yield. But the tree has a huge root and tall canopy, resistance is much stronger than the crops. The first is a huge tree roots, soil moisture at different levels, nutrient absorption and utilization of high, so you can reduce the number of surface water irrigation and watering;