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自然资源遥感  2023, Vol. 35 Issue (2): 287-294    DOI: 10.6046/zrzyyg.2022068
  技术应用 本期目录 | 过刊浏览 | 高级检索 |
贵州500亩以上坝区遥感识别与空间分布特征研究
胡锋1,2(), 李雪1,2, 左晋3, 宋善海1,2, 唐红祥1,2, 谷晓平1,2()
1.贵州省生态气象和卫星遥感中心,贵阳 550002
2.高分辨率对地观测系统贵州数据与应用中心,贵阳 550002
3.贵州省山地环境气候研究所,贵阳 550002
Remote sensing identification and spatial distribution of dam areas with an area over 33.33 hm2 in Guizhou Province, China
HU Feng1,2(), LI Xue1,2, ZUO Jin3, SONG Shanhai1,2, TANG Hongxiang1,2, GU Xiaoping1,2()
1. Guizhou Ecological Meteorology and Satellite Remote Sensing Center, Guiyang 550002, China
2. Guizhou Data and Application Center for High-resolution Earth Observation Systtem, Guiyang 550002, China
3. Guizhou Institute of Mountainous Climate and Environment, Guiyang 550002, China
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摘要 

贵州山多平地少,耕地资源紧缺,坝区成了现代农业高质量发展和农民增收致富的主要载体,开展坝区提取与特征研究可为农业产业结构调整和土地资源的可持续利用提供科学参考。以2020年2 m分辨率的国产高分卫星影像为主要数据源,借助“3S”技术手段,对500亩(①1亩=666.67 m2。) (33.33 hm2)以上的坝区进行了遥感提取、验证与分析。遥感监测结果表明: 贵州省500亩以上坝区大约1 749个,土地面积约337 080.14 hm2,占耕地面积的9.71%。全省主要以小面积坝区为主,其中等级2(66.67~133.33 hm2)和等级1(33.33~66.67 hm2)的坝区个数占比较高,占比分别为36.88%和26.13%; 而等级11(万亩大坝)的坝区面积占比最多(32.05%),且坝区个数与面积之间不成对应比例关系。500亩坝区主要聚集分布在沿东北—西南一线的中部区域,黔南州、遵义市和安顺市坝区面积位列前三; 坝区海拔主要分布在1 000~1 500 m之间,面积占比为46.68%,丘陵和山地区域坝区分布多,盆地和台地区域分布较少。

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胡锋
李雪
左晋
宋善海
唐红祥
谷晓平
关键词 500亩坝区高分辨率信息提取空间分布贵州    
Abstract

Featuring many mountains and few flatlands, Guizhou Province has scarce cultivated land resources. Consequently, dam areas become a main carrier for developing high-quality modern agriculture and increasing farmers’ income in Guizhou. The information extraction and characteristic research of dam areas can provide a scientific reference for the adjustment of the agricultural industrial structure and the sustainable utilization of land resources in Guizhou. With the domestic high-resolution satellite images of 2020 with a resolution of 2 m as the main data source, this study extracted, verified, and analyzed the remote sensing images of the dam areas with an area over 500 mu (33.33 hm2) using the global navigation satellite system (GNSS), the geographical information system (GIS), and remote sensing (RS). The remote sensing monitoring results are as follows: ① Guizhou has about 1 749 dam areas with an area of over 33.33 hm2 each, covering a total area of about 337 080.14 hm2, which account for 9.71% of the cultivated land; ② The dam areas with an area of 33.33~66.67 hm2 and 66.67~100 hm2 each account for the highest two proportions and account for 46.65% in total; ③ The dam areas mostly have small areas, with 32.05% on a scale of 10 000 mu (666.67 hm2). Moreover, there is not a proportional relationship between the number of dam areas and their area. The dam areas with an area of over 33.33 hm2 each are mainly distributed in the central region along the northeastern-southwestern area in Guizhou, with Qiannan Buyi and Miao Autonomous Prefecture, Zunyi City, and Anshun City ranking the top three in terms of area. The dam areas are dominated by those at altitudes of 1 000~1 500 m, which account for 46.68%. In addition, the dam areas are largely distributed in hilly and mountainous areas, with a few of them spreading in basins and platforms.

Key wordsdam area over 33.33 hm2    high resolution    information extraction    spatial distribution    Guizhou
收稿日期: 2022-03-03      出版日期: 2023-07-07
ZTFLH:  TP79  
基金资助:2021年区域特色应用项目“风云三号03批气象卫星工程地面应用系统”(FY-3(03)-AS-12.13)
通讯作者: 谷晓平(1968-),女,正研级高工,主要从事生态遥感与农业气象研究。Email: 16114331@qq.com
作者简介: 胡 锋(1990-),男,硕士研究生,主要从事GIS与遥感应用研究。Email: hufengdxzy@163.com
引用本文:   
胡锋, 李雪, 左晋, 宋善海, 唐红祥, 谷晓平. 贵州500亩以上坝区遥感识别与空间分布特征研究[J]. 自然资源遥感, 2023, 35(2): 287-294.
HU Feng, LI Xue, ZUO Jin, SONG Shanhai, TANG Hongxiang, GU Xiaoping. Remote sensing identification and spatial distribution of dam areas with an area over 33.33 hm2 in Guizhou Province, China. Remote Sensing for Natural Resources, 2023, 35(2): 287-294.
链接本文:  
https://www.gtzyyg.com/CN/10.6046/zrzyyg.2022068      或      https://www.gtzyyg.com/CN/Y2023/V35/I2/287
Fig.1  贵州省地势高程分布图
参数 波段 GF-1 GF-2 GF-6
光谱
范围/
μm
1 0.45 ~ 0.90 0.45~0.90 0.45~0.90
2 0.45 ~ 0.52 0.45~0.52 0.45~0.52
3 0.52 ~ 0.59 0.52~0.59 0.52~0.60
4 0.63 ~ 0.69 0.63~0.69 0.63~0.69
5 0.77 ~ 0.89 0.77~0.89 0.76~0.90
空间分辨率/m 全色: 2
多光谱: 8
全色: 1
多光谱: 4
全色: 2
多光谱: 8
宽幅/km 60 45 ≥ 90
周期/d 4 5 2
Tab.1  卫星数据有效载荷技术指标
Fig.2  研究技术路线
等级 面积 等级 面积
1 [33.33, 66.67) 7 [400.00, 466.67)
2 [66.67, 133.33) 8 [466.67, 533.33)
3 [133.33, 200.00) 9 [533.33, 600.00)
4 [200.00, 266.67) 10 [600.00, 666.67)
5 [266.67, 333.33) 11 ≥666.67
6 [333.33, 400.00)
Tab.2  坝区不同等级划分
Fig.3  贵州省500亩坝区的空间分布
Fig.4  贵州省500亩坝区的数量分布
Fig.5  不同等级坝区个数与面积分布
等级 数量/个 数量百分比/% 面积/hm2 面积百分比/%
等级1 457 26.13 22 833.61 6.77
等级2 645 36.88 62 464.87 18.53
等级3 265 15.15 43 136.89 12.80
等级4 127 7.26 29 059.45 8.62
等级5 78 4.46 23 161.59 6.87
等级6 41 2.34 15 100.79 4.48
等级7 21 1.20 8 856.43 2.63
等级8 20 1.14 9 827.61 2.92
等级9 17 0.97 9 650.11 2.86
等级10 8 0.46 4 945.62 1.47
等级11 70 4.00 108 041.17 32.05
合计 1 749 100.00 337 078.14 100.00
Tab.3  不同等级坝区面积分布
Fig.6  坝区个数与面积的密度空间分布
Fig.7  各市州坝区数量、面积和密度关系
Fig.8  不同高程、地貌形态区域坝区面积分布
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