宋婷婷 羅代清 金衛斌??黃勇奇 方元平 王書珍 ????
摘要:以2003年4月16日的TM\\ETM數據為數據源,采用最大似然法提取了湖北麻城市境內杜鵑分布信息,分析了麻城杜鵑在不同海拔、不同坡度、不同坡向的分布特征,結果表明:麻城市的野生杜鵑主要分布于海拔600~900 m的范圍內,海拔越高,杜鵑的覆蓋率越大,是海拔900 m以上山地的優勢物種,60%以上的杜鵑分布在坡度15~35°的范圍內,南坡分布的比例多于北坡,表明本地杜鵑趨向于分布在高海拔、陡坡度的南坡。
關鍵詞:遙感;杜鵑;空間分布
中圖分類號:S757文獻標識碼:A文章編號:1004-3020(2017)02-0035-04
A Research of Spatial Distribution of Rhododendron in Macheng Based on Remote Sensing
Song Tingting(1)Luo Daiqing(1)Jin Weibin(2)Huang Yongqi(2)Fang Yuanping(2)Wan Shuzhen(2)
(1.College of Horticulture and Landscape Architecture,Yangtze UniversityJingzhou434100;2. Hubei Key Laboratory of Economic Forest Germplasm Improvement andResources Comprehensive Utilization,Huanggang Normal UniversityHuanggang438000)
Abstract: Based on TM / ETM data of April 16, 2003, the maximum likelihood method was used to extract the distribution information of Azalea in Macheng City, Hubei Province. The distribution characteristics of Rhododendron at different altitude, slope and aspect were analyzed. The results showed that the wild Rhododendron was mainly distributed in the range of 600 to 900 meters above sea level. The higher the altitude, the higher the coverage of the Azalea,and it was the dominant species above 900 meters above sea level, more than 60% of the Rhododendron was in slope 15~ 35°,the proportion of the southern slope is more than that of the northern slope, indicating that the local Rhododendron tends to high altitude, more steep south slope of the mountains.
Key words:remote sensing;Rhododendron;spatial distribution
近年來,野生花卉在森林旅游中的作用越來越突出,尤其是春天的野生杜鵑,漫山遍野的杜鵑花海,給了森林景觀無限的魅力,其散發出來的陣陣清香,令人賞心悅目、心曠神怡。以杜鵑為主題的在森林旅游風景區得到了迅速發展[1],在湖北大別山區的麻城市龜峰山,大面積連片分布的映山紅灌叢Form.Rhododendron simsii已成為一個重要的旅游風景區,“人間四月天,麻城看杜鵑”的旅游詞吸引了大量游客,極大推進了地方經濟的發展[2]。
由于中國杜鵑資源主要分布山區和丘陵地帶,地形復雜,且非花期時的特征并不明顯,傳統的監測方法存在時間間隔長、人力投入大、精度不高等許多不足,已嚴重影響和制約了中國野生杜鵑資源的科學規劃、合理開發和高效利用,對于病蟲害防止、火災預報和監測工作也帶來一些障礙。因此,將遙感技術運用于杜鵑資源調查和監測,是杜鵑資源開發利用與經營管理的必經之路[3]。……