当前位置:首页>南京>RSE最新成果|南京航空航天大学薛朝辉团队基于TSEF融合框架精准区分人工 / 天然红树林,建成我国首套10米分辨率全国红树林分布图

RSE最新成果|南京航空航天大学薛朝辉团队基于TSEF融合框架精准区分人工 / 天然红树林,建成我国首套10米分辨率全国红树林分布图

  • 2026-06-26 23:34:36
RSE最新成果|南京航空航天大学薛朝辉团队基于TSEF融合框架精准区分人工 / 天然红树林,建成我国首套10米分辨率全国红树林分布图

论文摘要

精准区分人工红树林与天然红树林,对于红树林造林成效评估、生态修复效果研判至关重要,亟需研发高效的分类识别方法,并构建高质量人工红树林专题数据集。但由于两类红树林光谱特征高度趋同、空间分布破碎化严重,大范围、精细化开展人工与天然红树林遥感制图始终存在诸多难点。尽管全球红树林生态修复项目大规模落地,目前仍缺少专门的人工红树林空间分布数据集。本研究提出一种时序 - 卫星嵌入特征融合(TSEF)框架用于人工、天然红树林分类制图,该方法将谷歌卫星影像嵌入学习得到的高维隐特征,与长时间序列陆地卫星(Landsat)提取的时序特征相融合。基于该框架,本研究编制了我国首套 2024 年 10 米分辨率人工与天然红树林空间分布图,并反演重建了 2000 年、2015 年两类红树林历史空间分布数据。研究结果表明:(1)2024 年我国红树林总面积为 31324.41 公顷,其中人工红树林占比 42.51%,天然红树林占比 57.49%;(2)我国红树林扩张呈现两种差异化格局:广东、福建、浙江以人工造林驱动扩张为主;广西、海南、台湾则以自然恢复驱动扩张为主,体现出生态保护政策与自然恢复过程共同作用于红树林空间格局演变;(3)虽然我国红树林总面积快速增长,但人工造林的生态成效仍存在局限性:仅 26.11% 的人工红树林生态水平恢复至原生林平均状态,而天然更新红树林中该占比达到 41.68%。综上,本研究提出一套可迁移的精细化人工红树林制图框架,验证了卫星嵌入特征在遥感分类中的应用价值,该技术在大尺度、跨区域地物监测场景中具备广阔应用潜力。本研究产出的红树林分类数据集可为滨海蓝碳汇量化核算、红树林适应性优化管理决策提供科学依据,同时助力联合国可持续发展目标落地实施。

关键图表

图 1.滨海湿地内人工红树林与天然红树林交错分布格局示意图。(a) 展示我国典型的潮滩造林、养殖塘湿地化两类生态修复模式;(b) 体现人工红树林与天然红树林地表反射率高度相近的特征;(c)(d) 分别为 2013 年、2022 年广西珍珠港人工、天然红树林分布,两类红树林在林冠郁闭后表现出极高的结构与纹理相似性。

图 2.本文所提出的用于人工红树林制图的时序 - 卫星嵌入特征融合(TSEF)框架技术路线。
图 3.研究区范围及影像时序分布。(a) 我国东南沿海研究区地理位置;(b) 研究区分区;(c) 典型研究区域(高桥)位置,样点 1、样点 2 分别为天然红树林、人工红树林采样区;(d) 本研究所采用的 Landsat 系列影像时相分布。
图 4.人工、天然红树林解译标识及时序演变特征。红色、橙色、绿色采样点分别对应原生红树林、天然更新红树林、人工红树林样本。

图 5.历史影像特征嵌入重建技术流程。

图 6.2024 年我国人工红树林与天然红树林空间分布及面积范围。(a) 两类红树林分区域空间分布,1–9 号为典型验证样区;(b) 各省红树林面积占比统计;(c) 各省人工、天然红树林面积统计。

图 7.各省天然、人工红树林斑块数量与最大斑块规模空间统计分布。(a) A、B 两大分区人工与天然红树林整体分布概况;(b) 淇澳岛人工红树林;(c) 东寨港原生红树林;(d)(e) 分别为北部湾、安铺港天然更新红树林;(f)(g) 依次为各省红树林斑块数量、最大斑块面积统计结果。

图 8.2020 年 A36 通道原始特征嵌入与重建后特征嵌入结果差异。(a)(d) 原始 10 米分辨率特征嵌入图;(b)(e) 基于 Landsat 特征重建得到的特征嵌入图(重采样至 10 米分辨率);(c)(f) 二者空间差异分布图

图 9.广西珍珠港研究区 Landsat 光谱特征与卫星嵌入特征选定通道间的相关性热力图。

图 10.不同特征组合下人工、天然红树林分类结果。(A–C) 分别为珍珠港、高桥、清澜港红树林空间分布区域;(a–c) 为实测验证样本;(a1–c4) 为多组不同特征组合方案对应的分类结果。

图 11.人工、天然红树林分类结果与红树林树种分类结果对比。

图 12.像元级分类不确定性空间分布与统计分析。(a–c) 依次为东寨港、茅尾海、淇澳岛红树林空间分布;(d–f) 对应区域分类不确定性空间分布图;(g) A、B、C 三大分区整体不确定性统计结果。

图 13.各省不同年份人工、天然红树林面积统计表(单位:公顷)。分别展示 (a) 广东省、(b) 广西壮族自治区、(c) 海南省、(d) 福建省、(e) 台湾省、(f) 浙江省红树林面积时序变化特征。

图 14.1985—2024 年红树林空间分布动态变化。(A) 至 (E) 依次为珍珠港、茅尾海、高桥、深圳湾、漳江口红树林的人工与天然红树林时空演变。

图 15.各省人工红树林、天然更新红树林与原生红树林的归一化植被指数(NDVI)对比。

版权声明

声明:本推文仅用于学习交流,不做其他任何目的。若有侵权,请联系微信号:GeeStudy_2020删除或修改!论文doi链接:https://doi.org/10.1016/j.rse.2026.115541点赞、收藏、关注

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  1. CONNECT:[ UseTime:0.000713s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000841s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.001005s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002702s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000702s ]
  6. SELECT * FROM `set` [ RunTime:0.002226s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000805s ]
  8. SELECT * FROM `article` WHERE `id` = 593489 LIMIT 1 [ RunTime:0.002743s ]
  9. UPDATE `article` SET `lasttime` = 1782492599 WHERE `id` = 593489 [ RunTime:0.006781s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000291s ]
  11. SELECT * FROM `article` WHERE `id` < 593489 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000445s ]
  12. SELECT * FROM `article` WHERE `id` > 593489 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000444s ]
  13. SELECT * FROM `article` WHERE `id` < 593489 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000763s ]
  14. SELECT * FROM `article` WHERE `id` < 593489 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001109s ]
  15. SELECT * FROM `article` WHERE `id` < 593489 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004729s ]
0.094891s