| 哈密绿洲生态环境质量空间格局变化 |
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| 引用本文： | 高鹏文,阿里木江·卡斯木,图尔荪阿依·如孜,赵永玉,朱增云.哈密绿洲生态环境质量空间格局变化[J].草业科学,2022,38(1):20-31. |
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| 作者姓名： | 高鹏文 阿里木江·卡斯木 图尔荪阿依·如孜 赵永玉 朱增云 |
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| 作者单位： | 新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054;新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054;新疆师范大学丝绸之路经济带城镇化发展研究中心,新疆乌鲁木齐 830054;新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054;新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054;新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054 |
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| 基金项目： | 国家自然科学基金项目(41661037)%自治区研究生科研创新项目(XJ2020G237) |
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| 摘 要： | 通过2000、2008、2018年3期的Landsat数据,利用遥感生态指数(remote sensing ecological index,RSEI)确定哈密绿洲生态环境质量等级,运用3D趋势面探究生态环境质量各等级空间变化规律,利用移动窗口法分析绿洲生态环境质量的空间内部异质性及生态质量格局变化.结果表明:1)2000-2018年,哈密绿洲RSEI均值从0.223上升到0.396,生态环境质量总体转好,但水平较低.2)2000年生态环境质量中等、较好和优的分布较集中,均在东南-西北走向的轴线上;2008年生态环境质量极差与差等级区域明显减少,中等级、良等级和优等级区域增加范围较大,哈密绿洲整体扩展迅速;2018年生态环境质量中等、较好和优的范围相互交错,混合分布,且分布范围较大,生态质量不够稳定.3)生态环境质量变好的区域集中在绿洲的内部,且从内部到外部呈环状嵌套分布.2018年及2008年从内部到外部表现为:低值区-高值区-低值区-高值区;2000年与之相反.
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| 关 键 词： | 遥感生态指数 3D趋势面分析 生态环境质量格局 移动窗口法 哈密绿洲 |
Spatial pattern changes of eco-environmental quality in Hami Oasis |
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| GAO Pengwen,Alimujiang·Kasim,Tuersunayi·Ruzi,ZHAO Yongyu,ZHU Zengyun.Spatial pattern changes of eco-environmental quality in Hami Oasis[J].Pratacultural Science,2022,38(1):20-31. |
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| Authors: | GAO Pengwen Alimujiang·Kasim Tuersunayi·Ruzi ZHAO Yongyu ZHU Zengyun |
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| Abstract: | Based on the Landsat data of 2000, 2008, and 2018, the remote sensing ecological index (RSEI) was used to determine the ecological environment quality level of Hami Oasis, the 3D trend surface was used to explore the spatial change law of each level of ecological environment quality, and the moving window method was used to analyze the spatial heterogeneity of the ecological environment quality of the oasis and the change of the ecological quality pattern. The results show that: 1) From 2000 to 2018, the average RSEI of Hami Oasis increased from 0.223 to 0.396 and the overall ecological environment quality improved; however, the level was low. 2) In 2000, the regions with medium, good, and excellent ecological environment quality were more concentrated, all on the southeast-northwest axis. In 2008, the areas with extremely poor and poor grades of ecological environment were significantly reduced, and the areas with medium grade, good grade, and excellent grade increased greatly, indicating that the Hami Oasis as a whole expanded rapidly. In 2018, the areas with medium, good, and excellent ecological environment quality were intertwined with each other, mixed, and distributed in a large range, indicating that the ecological quality was not stable enough. 3) The areas where the quality of the ecological environment had improved were concentrated in the interior of the oasis and distributed in a ring-like nest from the inside to the outside. In 2008 and 2018, the ecological index performance from internal to external was determined to be low value area-high value area-low value area-high value area, which was just the opposite of that observed in 2000. |
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| Keywords: | remote sensing ecological index 3D trend surface analysis ecological environment quality pattern moving window method Hami Oasis |
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