| 1995-2019年广西山口红树林国家级自然保护区互花米草和红树林面积变化 |
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| 引用本文： | 沈鸿坤,赵博义,陈铭洋,黄荣永,余克服,梁文. 1995-2019年广西山口红树林国家级自然保护区互花米草和红树林面积变化[J]. 应用生态学报, 2022, 33(2): 397-404. DOI: 10.13287/j.1001-9332.202202.015 |
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| 作者姓名： | 沈鸿坤 赵博义 陈铭洋 黄荣永 余克服 梁文 |
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| 作者单位： | 1.广西大学广西南海珊瑚礁研究重点实验室/珊瑚礁研究中心/海洋学院, 南宁 530004;2.南方海洋科学与工程广东省实验室珠海, 广东珠海 519000;3.广西红树林研究中心, 广西北海 536000 |
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| 基金项目： | 国家自然科学基金项目(42030502,42090041,41766007)、广西科技计划项目(AD17129063,AA17204074,AA18118038)和广西自然科学基金项目(2020GXNSFAA297245)资助。 |
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| 摘 要： | 互花米草根系发达,适应环境的能力强,在与其他植物争夺空间和养分的过程中容易占据优势.其作为外来入侵物种已对我国海岸带生态系统造成危害.为了探讨互花米草的入侵对我国红树林生长和扩张所造成的影响,本研究以广西山口红树林国家级自然保护区的红树林为例,通过对1995-2019年8景Land-sat多光谱遥感影像的解译,分析互花...
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| 关 键 词： | 互花米草 红树林 生态系统 生态竞争 遥感影像 |
| 收稿时间： | 2021-08-10 |
Changes of the area of Spartina alterniflora and mangroves in Guangxi Shankou Mangrove National Nature Reserve from 1995 to 2019. |
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| SHEN Hong-kun,ZHAO Bo-yi,CHEN Ming-yang,HUANG Rong-yong,YU Ke-fu,LIANG Wen. Changes of the area of Spartina alterniflora and mangroves in Guangxi Shankou Mangrove National Nature Reserve from 1995 to 2019.[J]. The journal of applied ecology, 2022, 33(2): 397-404. DOI: 10.13287/j.1001-9332.202202.015 |
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| Authors: | SHEN Hong-kun ZHAO Bo-yi CHEN Ming-yang HUANG Rong-yong YU Ke-fu LIANG Wen |
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| Affiliation: | 1.Guangxi Laboratory on the Study of Coral Reefs in South China Sea/ Coral Reef Research Centre of China/School of Marine Sciences, Guangxi University, Nanning 530004, China;2.Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519000, Guangdong, China;3.Guangxi Mangrove Research Center, Beihai 536000, Guangxi, China |
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| Abstract: | Given its high root regeneration ability and adaptation capacity, Spartina alterniflora would predominate the resource competition with other plant species. As an invasive alien species, it has caused serious damages to the coastal ecosystem of China. We explored the impacts of S. alterniflora invasion on the growth and expansion of mangroves around the coastal zones around Guangxi Shankou Mangrove National Nature Reserve (GSMNNR). The area of S. alterniflora and mangroves in the GSMNNR was analyzed based on a sequence of Landsat satellite multispectral images collected during 1995 to 2019. The results showed that S. alterniflora predominated in the competition with mangroves without human intervention. The area of S. alterniflora decreased under the conditions of cutting, rooting and other management measures, while the average annual growth rate of mangrove area correspondingly increased. It indicated that the invasion of S. alterniflora would inhibit the growth and expansion of mangroves. The S. alterniflora management measures, such as mowing and rooting, could weaken the negative impacts of S. alterniflora on mangroves. Mangroves could thus be effectively protected. This study could provide quantitative scientific data for S. alterniflora management and the protection of the mangrove ecosystem in the GSMNNR, and thus be a valuable reference to the prevention on a larger scale of S. alterniflora and the formulation of further protective measures for mangroves. |
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| Keywords: | Spartina alterniflora mangrove ecosystem ecological competition satellite image |
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