中南林业调查规划
中南林業調查規劃
중남임업조사규화
CENTRAL SOUTH FOREST INVENTORY AND PLANNING
2012年
2期
13-17
,共5页
可视化模拟%林分结构%Weibull分布%模型
可視化模擬%林分結構%Weibull分佈%模型
가시화모의%림분결구%Weibull분포%모형
visual simulation%stand structure%Weibull distribution%models
林分结构是林分生长和林分经营的理论基础,具有重要的生产实践和科研价值。以杉木人工林为研究对象,以30m×30m样地大小为例,以Weibull分布拟合林分直径结构,并进行x2检验。在已知林木算术平均胸径和林木株数的前提下,以C#语言为基础,结合Weibull分布模型、测树因子间关系模型、生物量估计模型、GDI+技术与MOGRE技术。实现了林分结构统计图表可视化模拟,并对林分进行了2维3维可视化模拟。结果表明:Weibull分布可有效拟合林分直径结构分布,可视化模拟技术使林分结构得到了更加直观高效的表达,为研究林分结构提供了新的技术手段,为提高森林经营管理水平提供了可视化决策平台。
林分結構是林分生長和林分經營的理論基礎,具有重要的生產實踐和科研價值。以杉木人工林為研究對象,以30m×30m樣地大小為例,以Weibull分佈擬閤林分直徑結構,併進行x2檢驗。在已知林木算術平均胸徑和林木株數的前提下,以C#語言為基礎,結閤Weibull分佈模型、測樹因子間關繫模型、生物量估計模型、GDI+技術與MOGRE技術。實現瞭林分結構統計圖錶可視化模擬,併對林分進行瞭2維3維可視化模擬。結果錶明:Weibull分佈可有效擬閤林分直徑結構分佈,可視化模擬技術使林分結構得到瞭更加直觀高效的錶達,為研究林分結構提供瞭新的技術手段,為提高森林經營管理水平提供瞭可視化決策平檯。
림분결구시림분생장화림분경영적이론기출,구유중요적생산실천화과연개치。이삼목인공림위연구대상,이30m×30m양지대소위례,이Weibull분포의합림분직경결구,병진행x2검험。재이지림목산술평균흉경화림목주수적전제하,이C#어언위기출,결합Weibull분포모형、측수인자간관계모형、생물량고계모형、GDI+기술여MOGRE기술。실현료림분결구통계도표가시화모의,병대림분진행료2유3유가시화모의。결과표명:Weibull분포가유효의합림분직경결구분포,가시화모의기술사림분결구득도료경가직관고효적표체,위연구림분결구제공료신적기술수단,위제고삼림경영관리수평제공료가시화결책평태。
Stand structure is the theoretical basis of stand growth and management, and has significant practical and scientific values. The plot of Chinese fir plantation with the size of 30 m × 30 m was taken as an example. The diameter distribution of stand was fitted by Weibull distribution, and the resuh was analyzed by using chi - squared test. The stand arithmetic average DBH and the tree number of the stand were determined, and then the Chinese fir stand structure was intuitively simulated by using the Weibull distribution model, the relation- ship models of the forest inventory factors, the biomass estimation model, the GDI + technique and the MOGRE technique based on the C# programming language. The results were shown by the statistical charts, 2D and 3D views. The results showed that the diameter distribution of stand could be effectively fitted by the Weibull dis- tribution model, and stand structure could be expressed in a more intuitive and more effective way by using the visual simulation technique. It not only can provide the study of stand structure with a new technical measure, but also can offer a straightforward and efficient decision-making platform for enhancing the level of forest man- agement.