遥感技术在德宏州大型丛生竹资源监测中的应用研究

Application of Remote Sensing on Resource Monitoring of Big Cluster Bamboo Forest in Dehong Prefecture,Yunnan

利用GeoEye-1卫星遥感影像,根据影像特点,结合实地考察,建立遥感解译标志,对德宏州大型丛生竹资源进行监测,并采用标准地解析木法调查其生物量。结果表明,德宏州大型丛生竹林有小班8 090个,面积为30 000 hm2,其中纯竹林面积1.47万hm2,竹木混交面积0.75万hm2,四旁竹林面积0.41万hm2,防护竹林面积0.37万hm2。在9种丛生竹种中,龙竹面积最大,为1.1万hm2;麻竹次之,为0.78万hm2;缅甸竹面积第3位,为0.45万hm2。此监测方法具有广阔的推广应用价值。

The resource of big cluster bamboo forests in Dehong prefecture of Yunnan province was monitored using GeoEye-1 image and relevant technology. The resource monitoring was conducted based on the GeoEye-1 image, and the interpretation keys were established combing with on-site investigation. Besides, the biomass of bamboo stand was investigated by the method of sample plot establishment and stem analysis of sample trees. The results showed that the total area of big cluster bamboo in Dehong prefecture was 30 000 hm^2, four types were included namely pure bamboo forest, mixed forest of bamboo with trees, bamboo cultivated around the road or village, bamboo forest with shelter function; with the area of 14 700 hm^2, 7 500 hm^2, 4 100 hm^2 and 3 700 hm^2 respectively. As far as species was concerned, the area of Dendrocalamus giganteus was the biggest, which was 11 000 hm^2, next came D. latiflorus, with the area of 7 800 hm^2, the area of Bambusa burmanica was 4 500 hm^2, which was listed at No. 3. This study implied that the monitoring method based on remote sensing technology and GeoEye-1 image has broad application prospect in forest resource monitoring.