沙区林农复合经营效果的试验研究

Experiment research on effect of agroforestry complex management in sandy area

通过沙区林农复合经营连续4年的试验,得出林农复合系统能有效改善微生态环境,使系统内光、热、水资源得到重新分配,系统生产力的提高主要来自资源共享增益和林木生长增益,系统内水分利用效率一般比旷野农田提高10.3%~15.0%。林农复合经营能满足社会的多样性要求,实现土地资源的持续利用和增强抗灾能力。

With the consecutive 4 years experiment on agroforestry complex management in sandy area, the conclusion could be drawn that agroforestry complex system could improve micro-ecological environment efficiently, and reallocate light, heat and water resource in the system. The enhancement of system productivity benefited mainly from gain of resource sharing and forest tree growth. The efficiency of water utilization in system was 10.3%-15.0% higher than that in wilderness. Agroforestry complex, management could meet the various requirements of society, realize continual utilization of land resource and enhance ability of resisting natural calamities.