Nitraria tangtorum Biomass in Wulangbuhe Desert Based on Aerophotograph

Haiyu Zhang, W. Jia, Zhaogang Liu, He-zhi Wang
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Abstract

Based on the status from Dengkou County in Inner Mongolia, forestry pictures and measurements of plants situation were obtained by air-view photography. In 2006, nearly 130 photos of Wulangbuhe desert were taken in Dengkou County, and with the aids of GPS 10 bands of air routes had been operated with three-angel measurement methods. A view map in 1 sg KM under the scale of 1:1000 came to shape after correction work of the orthographic projection was done. By measuring the distribution, circus, and height status of typical Nitraria tangtorum, a measuring research to the plants was conducted in desert. Biomass forecast model were constructed with plant scale and plant height after the data from air-view photos were analyzed. The result shows that, 1) biomass in research zone was affected by factors of plant scale and plant height, the model of Nitraria tangtorum is: W=-33.92+6.53E-4(D2H)-9.86E-10(D2H)2+7.05E-16(D2H)3. 2) plant scale(D) and plant height(H) were both used in the biomass model as the factors. In conclusion, the key factors affecting Nitraria tangtorum include plant scale(D) and plant height(H), but single factor doesn't have significant influence on the growth of biomass (p
基于航空摄影的乌郎布河沙漠白刺生物量研究
本文以内蒙古登口县为研究对象,采用鸟瞰图技术,获得了该地区的林业图片和植物状况测量结果。2006年,在邓口县拍摄了乌兰布河沙漠近130张照片,在GPS的辅助下,用三角度测量方法操作了10个航路波段。在对正射影进行校正后,形成了1:1000比例尺1 sg KM的视图图。通过测定典型白刺属植物的分布、种群和高度状况,对荒漠地区白刺属植物进行了测量研究。在对鸟瞰图数据进行分析的基础上,建立了基于植物规模和植物高度的生物量预测模型。结果表明:1)研究区生物量受植物规模和株高的影响,白刺生物量模型为:W=-33.92+6.53E-4(D2H)-9.86E-10(D2H)2+7.05E-16(D2H)3。2)生物量模型中均采用植物规模(D)和植物高度(H)作为因子。综上所述,影响白刺生长的关键因子包括株尺(D)和株高(H),但单因素对生物量(p)的影响不显著
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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