首页|2007-2020年新疆额敏县野果林时空分布和重心动态变化

2007-2020年新疆额敏县野果林时空分布和重心动态变化

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以额敏县野果林分布区域为研究区,利用2007年快鸟(Quick bird)遥感影像、2013年和2020年高分一号卫星遥感影像、野果林野外实测数据等,实现野果林的信息解译和面积提取,基于动态度模型、转移矩阵模型、重心迁移模型,分析了2007-2020年研究区野果林的时空分布特征和动态变化情况,掌握了各类地物与野果林之间的相互转换,剖析了野果林空间分布的重心偏移规律,探讨了影响研究区野果林时空分布变化的原因.结果表明,2007-2020年,野果林面积增加了3.91 km2,呈持续缓慢增加趋势,旅游景区的开发,直接导致建筑用地面积有所增加;14年间,野果林面积逐步增加,归因于草地和裸土向野果林的转换较为频繁,其中草地向野果林的转化最为显著;野果林的重心变化幅度较小,空间分布较为稳定.
Spatiotemporal distribution and centre of gravity dynamic change of wild fruit forests in Emin County,Xinjiang from 2007 to 2020
Taking the distribution area of wild fruit forests in Emin County as the research area,using the remote sensing images of Quick bird in 2007 and Gaofen-1 satellite in 2013 and 2020,and the wild fruit forests field measurement data,the information inter-pretation and area extraction of wild fruit forests were realized,and based on the dynamic degree model,transfer matrix model and center of gravity migration model,the temporal and spatial distribution characteristics and dynamic changes of wild fruit forests in the study area from 2007 to 2020 were analyzed,and the mutual conversion between various features and wild fruit forests was mastered.The shift of the center of gravity of the spatial distribution of wild fruit forests was analyzed,and the reasons affecting the temporal and spatial distribution of wild fruit forests in the study area were discussed.The results showed that the area of wild fruit forests increased by 3.91 km2 from 2007 to 2020,which showed a continuous and slow increasing trend,and the development of tourist attractions di-rectly led to the increase of building land area;in the past 14 years,the area of wild fruit foresst increased gradually,which was attrib-uted to the frequent conversion of grassland and bare soil to wild fruit forests,and the transformation of grassland to wild fruit forests was the most significant;the change range of the center of gravity of wild fruit forests was small,and the spatial distribution was rela-tively stable.

wild fruit forestsrandom forestspatial and temporal changecentre of gravity offsetEmin County,Xinjiang

胡馨月、孙倩、黄瑾依、宋庭伟、郭正宇

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新疆农业大学林学与风景园林学院,乌鲁木齐 830052

野果林 随机森林 时空变化 重心偏移 新疆额敏县

新疆维吾尔自治区林业发展项目新疆维吾尔自治区自然科学基金项目国家自然科学基金面上基金项目

2220LCTXM2020D01B3431971713

2024

湖北农业科学
湖北省农业科学院 华中农业大学 长江大学 黄冈师范学院

湖北农业科学

CSTPCD
影响因子:0.442
ISSN:0439-8114
年,卷(期):2024.63(2)
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