| 伊犁吐尔根农场沟不同地形对新疆野杏分布特征的影响 |
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| 引用本文： | 谭志祺,陈 晨,石仁娜?加汗,刘 蕊.伊犁吐尔根农场沟不同地形对新疆野杏分布特征的影响[J].林业调查规划,2024,49(2):151-156. |
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| 作者姓名： | 谭志祺 陈 晨 石仁娜?加汗 刘 蕊 |
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| 作者单位： | 伊犁师范大学 资源与环境学院，新疆 伊宁 835000;伊犁师范大学 资源与环境学院，新疆 伊宁 835000； 伊犁师范大学 资源与生态研究所，新疆 伊宁 835000 |
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| 基金项目： | 伊犁师范大学植物生态学重点学科科研项目（YLUPE201803）. |
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| 摘 要： | 采用2019年WorldView-3卫星遥感影像与SRTM数字高程模型（DEM）数据，通过遥感面向对象提取、地理信息系统数字地形分析等，研究新疆伊犁吐尔根农场沟流域新疆野杏（Prunus armeniaca）的生长分布特征。结果表明，新疆野杏主要分布于吐尔根农场沟流域上游海拔1 000~1 900 m的山地坡面，分布面积2.57 km2，覆盖率为2.58%；新疆野杏垂直地带性空间分布特征明显，其分布面积、覆盖率均随海拔升高呈先增大后减小趋势，在海拔1 300~1 400 m出现最大值；新疆野杏分布面积西风迎风阳坡大于背风阴坡、15°~35°坡大于其他更缓和更陡坡，覆盖率西风迎风阴坡高于背风阳坡、陡坡高于缓坡；随海拔升高，同一海拔内不同坡向、坡度上新疆野杏覆盖率的差异均呈先减小后增大趋势，海拔1 300 m附近各坡向、各坡度间新疆野杏分布差异最小，相对最适宜其生存。
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| 关 键 词： | 新疆野杏 地形因子 遥感 DEM 伊犁吐尔根农场沟 |
Influence of Different Terrains on Distribution Characteristics of Prunus armeniaca in Tuergen Farm Basin of Ili Prefecture |
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| Abstract: | Using the 2019 WorldView-3 satellite remote sensing image and SRTM DEM data, the spatial distribution characteristics of Prunus armeniaca in Tuergen Farm Basin of Ili Prefecture, Xinjiang were studied through object-oriented extraction of remote sensing and digital terrain analysis of geographic information system. The results showed that Prunus armeniaca was mainly distributed on mountain slopes with an altitude of 1 000-1 900 m in the upper reaches of the basin, with an area of 2.57 km2 and a coverage rate of 2.58%; the vertical zonal spatial distribution characteristics of Prunus armeniaca were obvious, the area and coverage rate first increased and then decreased with the elevation, and the maximum value was at 1 300-1 400 m; the area of Prunus armeniaca was larger on westerly and windward sunny slopes than on leeward shady slopes, and larger on slopes of 15°~35° than on both steeper slopes and gentler slopes, while the coverage rate of Prunus armeniaca was higher on westerly and windward shady slopes than on leeward sunny slopes, and higher on steep slopes than on gentle slopes; with the increase of altitude, the difference of Prunus armeniaca coverage across different slop directions and gradients at the same altitude decreased initially and then increased. The distribution difference of Prunus armeniaca in different slope directions and gradients near 1 300 m was the smallest, which was relatively the most suitable for Prunus armeniaca. |
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| Keywords: | Prunus armeniaca topographic factor remote sensing digital elevation model Tuergen Farm Basin of Ili Prefecture |
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