丝路沿线重要湿地保护区湿地恢复潜力遥感评估
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王馨爽(1988-),女,高级工程师,现从事自然资源遥感监测、深度学习智能解译、生态系统评价等工作。Email: shuang1007@163.com。 |
Copy editor: 陈昊旻
收稿日期: 2024-05-06
修回日期: 2024-08-28
网络出版日期: 2026-06-03
基金资助
陕西省重点研发计划项目“陕西省秦岭地区水源涵养功能监测评估及时空变化研究”(2022ZDLSF06-01)
Remote sensing-based assessment of wetland restoration potential in important wetland reserves along the Silk Road
Received date: 2024-05-06
Revised date: 2024-08-28
Online published: 2026-06-03
湿地被誉为“地球之肾”,对于维护生态系统稳定具有重要价值。该文针对丝绸之路沿线(简称“丝路沿线”)10个重要湿地保护区,基于ZY-3卫星遥感数据,采用面向对象与人工解译交互的方法,提取2015年和2020年2期的湿地类型,形成保护区内湿地分布及动态变化数据集,并在此基础上结合地形、水文条件、生态重要性以及湿地类型转移情况,提出了一种退耕还湿潜力空间评估方法。湿地信息提取结果表明,2015—2020年,受自然和人为因素双重影响,丝路沿线重要湿地保护区内湿地面积净增加238.04 km2,新增类型以湖泊湿地为主,湿地率总体提升0.58%,生态保护区的设立对于区域湿地保护总体上取得良好成效,但部分区域湿地仍然呈现出退化趋势,退化面积为77.00 km2; 退耕还湿潜力分析结果表明,共有325.13 km2的耕地区域需要逐层级开展退耕还湿,其中,高优先级恢复区面积为10.63 km2,中优先级恢复区和低优先级恢复区面积分别为167.02 km2和147.48 km2。该研究提出因地制宜的湿地生态恢复方案,可为丝路沿线地区湿地保护与管理提供决策支持。
王馨爽 , 赵野鹤 , 刘建歌 , 孙鑫 , 张永振 , 毛德华 . 丝路沿线重要湿地保护区湿地恢复潜力遥感评估[J]. 自然资源遥感, 2025 , 37(4) : 204 -211 . DOI: 10.6046/zrzyyg.2024165
Wetlands, hailed as the "kidneys of the Earth", hold great significance for maintaining the stability of ecosystems. This study investigated 10 important wetland reserves along the Silk Road. Based on remote sensing data from the ZY3 satellite, it extracted the wetland types in 2015 and 2020 through interactions between object-oriented analysis and manual interpretation. As a result, a dataset of wetland distribution and its dynamic changes in the reserves was established. By combining topography, hydrological conditions, ecological importance, and wetland type transition, this study proposed a method for assessing the spatial potential of returning farmlands to wetlands. The results of wetland information extraction show that from 2015 to 2020, the wetland area in the 10 reserves exhibited a net increase of 238.04 km2 thanks to both natural and anthropogenic factors. Such an increase was dominated by lacustrine wetlands, with the wetland rate rising by 0.58% generally. This demonstrates that the establishment of ecological reserves posed a positive impact on regional wetland protection. However, in local regions, wetlands still showed a trend of degradation, covering an area of 77.00 km2. The potential analysis results of returning farmlands to wetlands indicate that a total of 325.13 km2 of farmlands should be returned to wetlands, consisting of 10.63 km2 requiring high-priority restoration, 167.02 km2 subjected to medium-priority restoration, and 147.48 km2 requiring low-priority restoration. The proposed region-specific scheme for ecological restoration in wetlands can provide decision-making support for wetland protection and management along the Silk Road.
表2 保护区内湿地类型转移矩阵Tab.2 Transition matrix of wetland classification in protection zone(km2) |
| 2020年 | 2015年 | 转入 | 总计 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 河流 | 湖泊 | 沼泽 | 滩地 | 库塘 | 河渠 | 非湿地 | |||
| 河流 | 96.32 | 0.09 | 7.15 | 31.15 | 0.03 | 0.00 | 19.02 | 57.44 | 153.76 |
| 湖泊 | 1.65 | 4 826.95 | 34.46 | 23.78 | 0.09 | 0.00 | 145.12 | 205.10 | 5 032.05 |
| 沼泽 | 16.56 | 3.64 | 1 061.70 | 8.37 | 1.44 | 0.01 | 60.34 | 90.38 | 1 152.08 |
| 滩地 | 11.49 | 10.16 | 1.14 | 183.80 | 0.40 | 0.00 | 88.94 | 112.15 | 295.95 |
| 库塘 | 0.39 | 0.00 | 0.51 | 0.64 | 19.55 | 0.00 | 1.58 | 3.12 | 22.67 |
| 河渠 | 0.11 | 0.00 | 0.00 | 0.01 | 0.02 | 0.22 | 0.04 | 0.18 | 0.40 |
| 非湿地 | 12.52 | 18.08 | 21.44 | 22.33 | 2.61 | 0.02 | 0.00 | 77.00 | 77.00 |
| 转出 | 42.72 | 31.97 | 64.70 | 86.30 | 4.59 | 0.03 | 315.04 | 0.00 | 0.00 |
| 总计 | 139.04 | 4 858.92 | 1 126.40 | 270.10 | 24.14 | 0.25 | 315.04 | 0.00 | 67 33.91 |
表3 退耕还湿分级面积统计表Tab.3 Statistical table of area classification for returning farmlands to wetlands(km2) |
| 保护区名称 | 低优先级 | 中优先级 | 高优先级 |
|---|---|---|---|
| 艾比湖 | 0.00 | 4.69 | 0.00 |
| 敦煌阳关 | 0.00 | 0.05 | 0.00 |
| 盐池湾 | 1.02 | 2.35 | 0.00 |
| 哈巴湖 | 0.00 | 49.67 | 0.00 |
| 青海湖 | 45.23 | 44.45 | 0.00 |
| 三江源 | 53.00 | 46.70 | 0.00 |
| 陕西黄河 | 0.26 | 3.41 | 9.43 |
| 巴音布鲁克 | 0.00 | 0.05 | 0.00 |
| 张掖黑河 | 47.97 | 15.65 | 1.20 |
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