桐粮间作人工生态系统的研究进展

Review on the Research of Paulownia-crops Intercropping in Recent Twenty Years

对近20年来有关桐粮间作的研究成果进行了综述,笔者认为:(1)泡桐的环境适应能力较强,是一种较好的林农间作树种;(2)间作泡桐能改善农田小气候,但遮光对间作农作物会造成不利影响;(3)桐粮间作能在一定程度上提高农作物品质和产量,且能增加泡桐材积,提高经济效益。同时,针对桐粮间作的研究现状,提出了今后的研究方向,指出在桐粮间作生态系统产量变化机制、系统内树冠对光截留的时空变化规律等方面的研究需进一步加强。

This paper summarized the research development of paulowniacrops intercropping in recent twenty years.The research indicated:paulownia is a practical tree species for agroforestry because of its flexibility.Paulowniacrops intercropping can improve the microclimate in general,but it has a negative effect on crops because the sunlight was intercepted by paulownia crowns.The intercropping system can not only increase quality and output yield of crops,but also increase the paulownia volume and economical benefit.The output yield changeable mechanism,space and time changeable rule of light in the ecological system and so on should be studied.