CAJ | 학술논문

灌木在干旱半干旱地区的生态系统中具有重要作用,高精度、非破坏性的灌木生物量估算方法已成为亟需解决的问题.利用数码拍照法对狼牙刺、山桃、沙棘、柠条、丁香、虎榛子、荆条和酸枣8种灌木进行水平拍照,采用Photoshop7.0图像处理软件提取了各灌木植株的照相面积(S)、高度(H)、宽度(D)、冠层高度(h)等信息,建立了不同灌木的生物量拟合方程,具有良好的精度.灌木侧面照相面积(S)与植株的生长情况密切相关,因此可建立灌木生物量估算的通用线性模型,其决定系数达到0.927 5,估算精度较高.利用数码照片估算灌木的生物量是一种非破坏性、简单方便、具有较高精度的方法,在灌木生物量估算中具有广泛的前景.
관목재간한반간한지구적생태계통중구유중요작용,고정도、비파배성적관목생물량고산방법이성위극수해결적문제.이용수마박조법대랑아자、산도、사극、저조、정향、호진자、형조화산조8충관목진행수평박조,채용Photoshop7.0도상처리연건제취료각관목식주적조상면적(S)、고도(H)、관도(D)、관층고도(h)등신식,건립료불동관목적생물량의합방정,구유량호적정도.관목측면조상면적(S)여식주적생장정황밀절상관,인차가건립관목생물량고산적통용선성모형,기결정계수체도0.927 5,고산정도교고.이용수마조편고산관목적생물량시일충비파배성、간단방편、구유교고정도적방법,재관목생물량고산중구유엄범적전경.
Shrub played an important role in the ecosystem of arid and semi-arid region, and the biomass estimated method of shrub with high-precision and non-destructive became an urgent need. Eight species shrubs including Sophora davidii, Prunus davidiana, Hippophae rnamnoides, Caragana purdomii, Syringa vulgaris, Ostryopsis davidiana, Vitex negundo var. heterophylla and Poliothyrsis sinensis were taken pictures by using digital cameral; and some information such as area (S), height (H), width (D), canopy height (h) of shrubs were extracted by Photoshop7.0. The fitting equation of biomass of different kinds of shrubs was established, and had a good precision. Side photography area of photo (S) had a close relationship with growth situation of shrubs, so the general linear model of shrub biomass estimate can be established, and its determined coefficient reached 0.927 5, the estimation accuracy was higher. The method of digital photographs is a non-destructive, simple and convenient method with higher accuracy to estimate the biomass of shrubs, which had a wide range of prospects in biomass estimating of shrubs.