CAJ | 학술논문

利用ASD便携式手持光谱仪，实测了研究区域内油松林健康松枝和发黄松枝的原始光谱数据，并采集松枝样本进行叶绿素的测定。通过对光谱数据的处理，计算出光谱数据的位置特征参数—“三边”参数。对“三边”参数与所测叶绿素值进行相关性分析，选择最优的参数拟合出叶绿素的线性回归模型。结果表明：基于红边面积（SDr）的健康松树针叶叶绿素估算模型的决定系数为0．788；基于蓝边位置（PDb）的发黄松树针叶叶绿素估算模型的决定系数为0．710。利用实验数据对所建立的估算模型进行验证，健康松树针叶与发黄松树针叶叶绿素估算模型的可靠性均满足实验要求，说明应用“三边”参数估算植被叶绿素的方法是可行的。
이용ASD편휴식수지광보의，실측료연구구역내유송림건강송지화발황송지적원시광보수거，병채집송지양본진행협록소적측정。통과대광보수거적처리，계산출광보수거적위치특정삼수—“삼변”삼수。대“삼변”삼수여소측협록소치진행상관성분석，선택최우적삼수의합출협록소적선성회귀모형。결과표명：기우홍변면적（SDr）적건강송수침협협록소고산모형적결정계수위0．788；기우람변위치（PDb）적발황송수침협협록소고산모형적결정계수위0．710。이용실험수거대소건립적고산모형진행험증，건강송수침협여발황송수침협협록소고산모형적가고성균만족실험요구，설명응용“삼변”삼수고산식피협록소적방법시가행적。
We measured the spectral data of the Pinus tabulaeformis with healthy and withered branches , respectively , in the field, and gathered their needles were to assay their chlorophyll content .We calculated the characteristic parameters of“Sanbian” in three special positions with the spectral data .Then, we analyzed the correlation between the “Sanbian” pa-rameters and the chlorophyll content assay , and established a linear regression model to estimate the chlorophyll content with the optimal parameters .The coefficient of determination of chlorophyll estimation model was 0.788 in the needles of healthy P.tabulaeformis based on the red edge area , and it was 0.710 in the needles of withered P.tabulaeformis based on the position of the blue edge .At last, by verifying the estimation model , it is reliable for two chlorophyll estimation models in the needles of healthy and withered P.tabulaeformi.