摘要
在沙区樟子松人工林中开展混农经营研究,结果表明:混农经营改善了林地的水分养分条件,增强了林木抗病能力,并且种植带内风蚀程度很轻;混农经营促进了林木生长,当种植带宽度为7 m时,花生、黑豆产量分别达到农田地产量的80%、60%,实现了林地长短期经济效益的结合。在樟子松人工林中开展混农经营兼顾了林分的生态和经济效益。
In this paper, we carried out ecological and economical benefits of agroforestry system in Pinus sylvestris var. mongolica plantation in sandy land. The results showed that by adoption of the agroforestry system, water and nutrient conditions of forest land were improved, the disease resistance of trees was enhanced, and the degree of wind erosion in planting belts was very low. The agroforestry system promoted the growth of trees; and when the width of a planting belt was 7m, the yields of peanut and black soya bean reached 80% and 60% of yields in farmland, respectively; therefore, the long-term and short-term economical benefits of forest land were combined. The agroforestry system in Pinus sylvestris var. mongolica plantation took ecological and economical benefits of standing forest into consideration.
出处
《辽宁林业科技》
2014年第2期1-4,40,共5页
Liaoning Forestry Science and Technology
基金
国家林业公益性行业科研专项(201004063)
国家十二.五科技支撑课题(2012BAD19B08)
关键词
沙地
樟子松
混农林业
生态经济效益
sandy land
Pinus sylvestris vat. rnongolica
agroforestry system
ecological and economical benefits
