摘要
建立计算机引种决策支持系统的目的是利用先进的信息处理手段为引种决策提供科学依据,以避免盲目决策造成的失误,达到科学预测的目的。根据生物气候相似的原理,通过对外来树种的现实气候生态位与引种地区气候条件的对比,为其选择具有引种意义的地区是系统的功能之一。系统采用多元样条函数插值和离散空间曲面拟合的方法表示所研究地区连续的气候空间分布,借助模糊数学模型判别地点对外来树种的适合程度,并以彩色图形加以直观地描述,由计算机完成引种区划的模拟决策过程。它既可用于为外来树种选择试验地区,也可根据试验信息反馈修正区划和对树种的潜在生态位加以研究。作为实例,本文应用系统对银荆的引种区划进行了研究。
As a part of the decision support system, design and application of subsystem are demonstrated. Climatic factors were estimated for 3911 sites in a half-degree latitude-longitude grid across China, by means of multivariate interpolation technique and a fuzzy model was established for identifying homoclimate of each site compared with species climatic requirement. Bioclimate analysis carried out in computer divided target sites into different levels and mapped by color so that the region where climate were similar to that of species required could be recognized.
It was concluded that the system could assist in establishing field trials for species without being tested and delineating suitable areas according to results from trials.
As a multipurpose species, Acacia dealbata was used for delineating suitable zones to illustrate the system.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1989年第5期395-400,共6页
Scientia Silvae Sinicae
关键词
林木引种
银荆
计算机
Introduction
Computer
Decision
Fuzzy
Interpolation: Acacia dealbata.
