investigation of stand-conditions 中文意思是什麼
investigation of stand-conditions
解釋
林況調查- investigation : n. 1. 研究，調查；審查。2. 研究論文，調查報告。
- of : OF ＝Old French 古法語。
- stand : vi （stood ）1 站立，站起來 （up）; 站住，站定 （opp sit lie kneel couch squat）。2 （房子等）在...
- conditions : （旅遊合同中）條件或服務項目
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This research established an estimating model of pinus massoniana stand volume with the elements as variates directly obtained from rs and the conditions of stand that were extracted from 130 samples of pinus massoniana stand from the fifth forest resource continuous investigation data in min - jiang watershed and flitered by the thrice standard deviation method and liner regression method and the correlation coefficient is 0. 735 the suitability and precision of the model were tested and regression analysised with data that were extracted from another 30 samples
摘要從福建省第5次森林資源一類調查落在閩江流域的樣地中抽取馬尾松林樣地130個，以rs可提取因子及樣地林分立地條件因子為可選變量，利用3倍標準差法進行異常數據的篩選，對林分立地條件定性因子進行數量化處理，通過逐步回歸構建閩江流域馬尾松林分蓄積量估測模型，研究結果所構建的蓄積量估測模型的相關系數為0 . 735 。
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