张雄浩, 甘淑, 袁希平, 王利华, 杨敏, 陈轩. 云南小江流域泥石流堆积扇土地利用模式分析[J]. 云南大学学报(自然科学版), 2020, 42(3): 499-506. doi: 10.7540/j.ynu.20190448
引用本文: 张雄浩, 甘淑, 袁希平, 王利华, 杨敏, 陈轩. 云南小江流域泥石流堆积扇土地利用模式分析[J]. 云南大学学报(自然科学版), 2020, 42(3): 499-506. doi: 10.7540/j.ynu.20190448
ZHANG Xiong-hao, GAN Shu, YUAN Xi-ping, WANG Li-hua, YANG Min, CHEN Xuan. Analysis of land use patterns of debris flow fans in Xiaojiang River Basin of Yunnan Province[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(3): 499-506. DOI: 10.7540/j.ynu.20190448
Citation: ZHANG Xiong-hao, GAN Shu, YUAN Xi-ping, WANG Li-hua, YANG Min, CHEN Xuan. Analysis of land use patterns of debris flow fans in Xiaojiang River Basin of Yunnan Province[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(3): 499-506. DOI: 10.7540/j.ynu.20190448

云南小江流域泥石流堆积扇土地利用模式分析

Analysis of land use patterns of debris flow fans in Xiaojiang River Basin of Yunnan Province

  • 摘要: 在土地资源匮乏的山区,泥石流堆积扇作为一种宝贵的土地资源,是人们进行生产生活的主要场所. 但泥石流堆积扇具有不稳定性,使得泥石流堆积扇的土地利用具有高风险性. 因此,对泥石流堆积扇的土地利用模型进行分析很有必要. 随着遥感技术的不断发展,以及中国对地高分辨率观测系统的不断完善,使利用高分辨率遥感影像对特定区域的土地利用方式进行小尺度研究成为可能. 文章采用高分二号遥感影像、数字高程模型、GIS技术并结合外业调查验证的方式,对小江流域内196个泥石流堆积扇的土地利用模式及其高程关联特性、百分比坡度关联特性进行了分析. 此外,利用泥石流扇土地利用开发分层模式对泥石流扇的开发进行初步风险分析得出,研究区内泥石流扇的土地利用方式主要以风险较小的初级开发模式为主.

     

    Abstract: In mountainous areas where land resources are scarce, debris flow fans as a valuable land resource, are the main places for people’s production and life. However, debris flow fans are unstable, which leads to high risks of making use of the debris flow fan land. Therefore, it is necessary to analyze the land use model of debris flow fans. With the continuous development of remote sensing technology and the continuous improvement of China’s high-resolution earth observation system, it is possible to use high-resolution remote sensing images for small-scale study of land use patterns in specific areas. In this paper, the land use patterns, elevation correlation characteristics and percentage slope correlation characteristics of 196 debris flow fans in Xiaojiang River Basin were comprehensively analyzed by using GF2 remote sensing images, digital elevation models, GIS technology and field investigations. In addition, by using the stratified mode of debris flow fan land use, it is found out that the main land use mode of debris flow fans in Xiaojiang River Basin is a primary development mode at little risk.

     

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