| 基于遥感数据的喀什市生态因子特征分析 |
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| 引用本文： | 亚库普.约麦尔.基于遥感数据的喀什市生态因子特征分析[J].中国农学通报,2015,31(23):224-229. |
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| 作者姓名： | 亚库普.约麦尔 |
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| 作者单位： | 新疆师范大学 地理科学与旅游学院 |
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| 基金项目： | 国家自然科学(41361043)；新疆维吾尔自治区青年科技创新人才培养工程优秀青年科技人才项目(2013721031) |
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| 摘 要： | 分析城市生态敏感性因子及其分布特征，在进行城市环境管理，制定区域社会经济发展政策等方面具有重要作用。以喀什市为研究对象，选取坡度、高程、植被覆盖指数(NDVI)、土地利用类型及水体等5个生态敏感性因子，ArcGIS空间分析与单因子分析法相结合，对喀什市生态因子特征进行系统分析。结果表明：高敏感区和中敏感区主要分布在植被覆盖率较高、地势和坡度低、绿化面积较大的区域，而低敏感区和不敏感区分布于地势和坡度较高的丘陵、荒地、未利用地等区域，其中因子敏感区面积最大的是水体因子，最小的为坡度因子，面积占75.46%和0.33%；从生态因子敏感性程度来看，坡度大的区域敏感性程度低，坡度小的区域则敏感性程度高，地势高的区域敏感性程度低，地势低的区域敏感性程度高；从生态因子敏感区特征来看，高度敏感区的自我恢复能力差，敏感性总体程度高；中度生态敏感区生态功能较弱、生态系统不太稳定；低度生态敏感区和不敏感区的生态系统较稳定，敏感性程度低，能承受外界因素的破坏和干扰能力强。
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| 关 键 词： | 白杨杂种三倍体 白杨杂种三倍体 外植体 不定芽 再生系数 植物激素 |
| 收稿时间： | 2015/3/13 0:00:00 |
| 修稿时间： | 2015/4/29 0:00:00 |
Eco-Factor Feature Analysis in Kashgar City Based on Remote Sensing Data |
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| Abstract: | Analysis of city ecological Sensitivity factors and distribution characteristics plays an important role in the city environmental management, formulate the development policies in regional society and economy. The characteristics of ecological factors in Kashgar city were analyzed using ArcGIS spatial analysis and single factor analysis methods. The 5 ecological sensitive factors including slope, elevation, water, vegetation index (NDVI) and land use types. The results showed that: the high sensitive and sensitive areas distributed in the land of higher coverage fractional vegetation area, the lower terrain, slope area and the larger greening area; while, the low sensitive and non sensitive areas distributed in the higher terrain and slope area where hills, uncultivated and unused lands are located. The biggest proportion among the sensitive factors is water factor; in contrast, the smallest proportion among the sensitive factors is the slope factor. Among the total research area, the ratio of two opposite factors in this study is separately occupied 75.46% and 0.33%; in terms of ecological sensitive degree factor, the degree of sensitivity is low in the big slope area, while it is high in the small slope area. In the high terrain land, the sensitivity is low; however, it is high in the low terrain land. From the characteristics of ecological sensitive areas, it can be concluded that the self recovery ability is poor in high sensitive areas.; in moderate ecological areas, ecological function is weak and the system is unstable; in low ecological sensitive and non sensitive areas, the ecological system is stable, the sensitivity is low, it can bear the external factors damage and interference. |
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| Keywords: | Remote sensing data ecological factors Kashgar city GIS |
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