摘要
根据我国北方地区历年油松飞播调查资料和对典型播区的调查 ,阐明了油松飞播的地理分布和效果 ;同时运用统计分析和模糊数学分析等方法 ,对影响油松飞播成效的主要因子作了系统的宏观分析 ,得出年均降水量和年均气温是影响飞播效果的主要因子。在此基础上 ,对北方地区油松飞播造林进行了适宜性分区 ,分区结果将油松飞播划分为 3个区 ,即造林适宜区 ,造林次适宜区和造林非适宜区 。
According to the data of aerosowing chinese pine(Pinus tabulaeformis) over the years and the investigation of typical sowing areas in the northern region, the geographical distribution and results of aerosowing P.tabulaeformis are expounded; at the same time, the main factors influencing the results of aerosowing P.tabulaeformis are studied and analysed macroscopically using the methods of statistical analysis and fuzzy mathematical analysis. The results of the study showed that the annual precipitation and annual air temperature are main factors affecting the results of aerial sowing.On the basis of the study the division of suitability for aerosowing P.tabulaeformis in the northern region is conducted,and the three regions:suitable region,subsuitable region and unsuitable region are divided. This is of great importance for directing aerial sowing of P.tabulaeformis in the future.
出处
《水土保持学报》
CSCD
北大核心
2000年第1期18-23,共6页
Journal of Soil and Water Conservation
基金
国家科委黄土高原飞播造林种草试验合同项目
关键词
油松
造林
适宜性分区
飞机播种
Pinus tabulaeformis
aerial sowing of tree
division of suitability
