CAJ | 학술논문

以黑龙江省区域小兴安岭地区遥感影像和130块2005年小兴安岭二类调查数据及土壤数据为基础，选择各个波段的灰度值、不同波段灰度值之间的线性和非线性波段组合、纹理信息以及非生物因子栅格化后所形成的辅助波段等为自变量，选择与碳密度相关性显著的自变量，采用郁闭度碳密度联立方程组模型，对黑龙江省区域小兴安岭森林生态系统的碳密度进行估算、精度评价。结果表明：黑龙江省区域小兴安岭的南部和中部地区，森林碳密度主要集中在200～250 t· hm－2；北部地区大部在250～300 t· hm－2。黑龙江省区域小兴安岭森林生态系统碳密度，具有从西向东、从南向北，逐步升高的趋势。模型平均拟合精度85．1％，均方根误差＝31．27 t· hm－2；平均检验精度84．7％，均方根误差＝33．61 t· hm－2。
이흑룡강성구역소흥안령지구요감영상화130괴2005년소흥안령이류조사수거급토양수거위기출，선택각개파단적회도치、불동파단회도치지간적선성화비선성파단조합、문리신식이급비생물인자책격화후소형성적보조파단등위자변량，선택여탄밀도상관성현저적자변량，채용욱폐도탄밀도련립방정조모형，대흑룡강성구역소흥안령삼림생태계통적탄밀도진행고산、정도평개。결과표명：흑룡강성구역소흥안령적남부화중부지구，삼림탄밀도주요집중재200～250 t· hm－2；북부지구대부재250～300 t· hm－2。흑룡강성구역소흥안령삼림생태계통탄밀도，구유종서향동、종남향북，축보승고적추세。모형평균의합정도85．1％，균방근오차＝31．27 t· hm－2；평균검험정도84．7％，균방근오차＝33．61 t· hm－2。
With the remote sensing images of Xiaoxing’ an Mountains and 130 plots of the forest inventory in 2005 and soil data, we selected the variables including the bands of gray value, linear and nonlinear combination of bands between the different bands of gray value, texture information and auxiliary band formed by abiotic factors of the grid and the independent varia-bles significantly related to the carbon density to estimate the forest ecosystem carbon density of Xiaoxing’ an Mountains by using the simultaneous equation models.In the south region of Xiaoxing’an Mountains, forest carbon density was 200-250 t· hm-2 , and 250-300 t· hm-2 in the north region with the rising trend from west to east and from south to north.Average model fitting precision was 85.1%with RMSE of 31.27 t· hm-2 .The average test accuracy of the model was 84.7%with RMSE of 35.61 t· hm-2 .