摘要
日益严峻的生态环境严重影响大豆生产,通过建立面板数据模型,探讨了黑龙江平原地区林业建设对大豆生产的影响,并通过线性回归分析进行了量化研究。结果表明:森林覆盖率、郁闭度、林地面积和森林蓄积4项林业建设指标对黑龙江平原地区大豆产量的影响权重分别为0.874 5,0.763 1,0.698 2和0.557 9,说明林业建设对大豆生产具有明显的促进作用。
The effect of ecological environment on soybean production was increasingly serious. Through establishing the panel data model, the effect of forestry construction on soybean production in Heilongjiang plain area was investigated. Meanwhile, the linear regression analysis was quantitative researched. The results showed that the percentage of forest cover, forest canopy density,forest area and stock were the most four important factors to the soybean yield,the weight was 0. 874 5,0. 763 1,0. 698 2 and 0. 557 9, respectively. It indicated that the construction and development of forestry was important to promote soybean production.
出处
《大豆科学》
CAS
CSCD
北大核心
2013年第6期862-865,共4页
Soybean Science
关键词
平原林业
大豆生产
面板数据模型
Plain forestry
Soybean production
Panel data model
