南京林业大学学报（自然科学版）
南京林業大學學報（自然科學版）
남경임업대학학보（자연과학판）
Journal of Nanjing Forestry University(Natural Science Edition)
2015年
5期
87-92
,共6页
森林调查%盗伐林木%摄影测量%地径%胸径%材积
森林調查%盜伐林木%攝影測量%地徑%胸徑%材積
삼림조사%도벌림목%섭영측량%지경%흉경%재적
forest survey%felling trees%photogrammetry%basal diameter%DBH%volume
为了解决盗伐林木材积测定困难的问题,以普通数码相机或3D数码相机为信息采集手段,采用现代近景摄影测量技术,通过计算机相关程序进行图像处理,提取立木测树因子数据信息,编写地径-胸径拟合程序,利用已有的地方各树种的一元材积数学模型库进行立木胸径、材积的预测,并以北京地区25株速生杨的地径、胸径、材积的摄影测量值与外业实测值为例对模型进行验证. 结果表明:北京市速生杨一元材积模型为 V=0.000 065 678D1.31.941 06[22.126×(1-e-0.072 04D1.3)1.373 8]0.849 29,利用数字摄影测量方法进行盗伐林木材积的计算,所获取的立木地径、胸径、材积参数与实际外业测量参数平均误差分别为1.94%、3.49%、6.82%,以该方法能够获取较为准确的地径、胸径和材积数据.
為瞭解決盜伐林木材積測定睏難的問題,以普通數碼相機或3D數碼相機為信息採集手段,採用現代近景攝影測量技術,通過計算機相關程序進行圖像處理,提取立木測樹因子數據信息,編寫地徑-胸徑擬閤程序,利用已有的地方各樹種的一元材積數學模型庫進行立木胸徑、材積的預測,併以北京地區25株速生楊的地徑、胸徑、材積的攝影測量值與外業實測值為例對模型進行驗證. 結果錶明:北京市速生楊一元材積模型為 V=0.000 065 678D1.31.941 06[22.126×(1-e-0.072 04D1.3)1.373 8]0.849 29,利用數字攝影測量方法進行盜伐林木材積的計算,所穫取的立木地徑、胸徑、材積參數與實際外業測量參數平均誤差分彆為1.94%、3.49%、6.82%,以該方法能夠穫取較為準確的地徑、胸徑和材積數據.
위료해결도벌림목재적측정곤난적문제,이보통수마상궤혹3D수마상궤위신식채집수단,채용현대근경섭영측량기술,통과계산궤상관정서진행도상처리,제취립목측수인자수거신식,편사지경-흉경의합정서,이용이유적지방각수충적일원재적수학모형고진행립목흉경、재적적예측,병이북경지구25주속생양적지경、흉경、재적적섭영측량치여외업실측치위례대모형진행험증. 결과표명:북경시속생양일원재적모형위 V=0.000 065 678D1.31.941 06[22.126×(1-e-0.072 04D1.3)1.373 8]0.849 29,이용수자섭영측량방법진행도벌림목재적적계산,소획취적립목지경、흉경、재적삼수여실제외업측량삼수평균오차분별위1.94%、3.49%、6.82%,이해방법능구획취교위준학적지경、흉경화재적수거.
In order to solve the difficult problem of forest logging volume determination,taking ordinary digital camera ( or 3D digital camera) as its information acquisition means, this research processes the images taken from modern close range photogrammetry technologies with related computer software, extracts the information of standing tree measurement factors and compiles a basal diameter?DBH fitting software based on the existing local single entry volume mathematical model to predict breast diameter and timber volume and other related information such as tree species, DBH, material values and uses 25 strains of poplar basal diameter, DBH and volume comparing with the value measured outside as the?sample to verify the model.The results showed that the poplar unitary volume model of in Beijing is V=0.000 065 678 D1.31.941 06[22.126·(1-e-0.072 04D1.3)1.373 8]0.849 29,there is almost no difference between the result calculated from the close range photogrammetry technologies and the value measured outside, the average error is 1. 94%, 3. 49%, 6. 82%. This method can obtain the accurate value of basal diameter,DBH and volume.
