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为寻求恢复南亚热带山区弃耕地肥力的途径，本文介绍了１９８６－１９９０年期间在云南省景东县开展的紫胶薪炭林林粮间作试验，结果表明，紫胶薪炭林林粮间作不仅能在短时期内恢复弃耕地肥力，而且在一个轮伐期（３年）内，每公顷还可生产粮食３．７５ｔ，紫胶０．３０ｔ（每吨原胶价值７０００元以上），薪柴６．７５ｔ．因此，建议把紫胶薪炭林林粮间作列入生态经济建设计划，在南亚热带山区推广。
In order to find a way to restore the fertility of abandoned farmland in southern subtropical mountainous area, this paper introduces the experiment of shellac farmer’s grain-forest intercropping in Jingdong County of Yunnan Province from 1986 to 1990. The results show that the inter- In a short period of time, the fertility of abandoned farmland will be restored. In addition, 3.75 tons of grain per hectare and 0.30 tons of shellac (worth more than 7,000 yuan per ton of raw rubber) will be produced in one rotation (6 years). 75t. Therefore, it is suggested that shellac fuel forest-forest grain intercropping be included in the eco-economic construction plan and be promoted in the southern subtropical mountainous areas.