VEGETATION CHARACTERISTICS AND CONTROL TECHNIQUES OF <i>SPARTINA ALTERNIFLORA</i> IN DIFFERENT TIDAL FLAT HABITATS

XIE Baohua; YAN Zhenning; ZHANG Shuyan; MEI Baoling; QIAO Peiyang; WANG Xiaojie; LIU Zhanhang; HAN Guangxuan

doi:10.13205/j.hjgc.202306001

Volume 41 Issue 6

Jun. 2023

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XIE Baohua, YAN Zhenning, ZHANG Shuyan, MEI Baoling, QIAO Peiyang, WANG Xiaojie, LIU Zhanhang, HAN Guangxuan. VEGETATION CHARACTERISTICS AND CONTROL TECHNIQUES OF SPARTINA ALTERNIFLORA IN DIFFERENT TIDAL FLAT HABITATS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 1-8,16. doi: 10.13205/j.hjgc.202306001

Citation:

XIE Baohua, YAN Zhenning, ZHANG Shuyan, MEI Baoling, QIAO Peiyang, WANG Xiaojie, LIU Zhanhang, HAN Guangxuan. VEGETATION CHARACTERISTICS AND CONTROL TECHNIQUES OF SPARTINA ALTERNIFLORA IN DIFFERENT TIDAL FLAT HABITATS[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(6): 1-8,16. doi: 10.13205/j.hjgc.202306001

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VEGETATION CHARACTERISTICS AND CONTROL TECHNIQUES OF SPARTINA ALTERNIFLORA IN DIFFERENT TIDAL FLAT HABITATS

doi: 10.13205/j.hjgc.202306001

1. Shandong Provincial Key Laboratory of Coastal Environmental Processes, Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, CAS, Yantai Institute of Coastal Zone Research of Chinese Academy of Sciences, Yantai 264003, China;
2. College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China;
3. Yellow River Delta Field Observation and Research Station of Coastal Wetland Ecosystem, Chinese Academy of Sciences, Dongying 257500, China;
4. Shandong Yellow River Delta National Nature Reserve Management Committee, Dongying 257500, China;
5. College of Life Sciences, Ludong University, Yantai 264025, China

Received Date: 2023-03-02
Available Online: 2023-09-02

Abstract

Abstract

Spartina alterniflora is one of the most harmful alien invasive species in the coastal areas of China. It is of great significance to explore efficient and feasible control technology of S. alterniflora to protect the intertidal ecological environment. Based on the long-term field investigation and in-situ experiments in the Yellow River Delta, this study revealed the efficacies of different control techniques of S. alterniflora. From the middle of June, 2018, 2 to 4 times of mowing (the stubble height was less than 3cm, and the interval between adjacent mowing events was approximately 15 days) could eliminate more than 99% of S. alterniflora, and the control efficacy was still as high as 98.8% at the end of the second growing season. Mowing plus ploughing in mid-December resulted in a controlled efficacy of 99.7% at the end of the second growing season. The tidal flat elevation gradually increased from sea to land, and the environmental factors such as soil's physical and chemical properties changed accordingly. The density, plant height and biomass of S. alterniflora increased first and then decreased with the increase of elevation. Considering the growth characteristics, habitat characteristics of S. alterniflora and the efficacies of different control techniques, a control technology system of S. alterniflora suitable for different tidal flat habitats was summarized. In the low tidal flat, middle tidal flat and high tidal flat, mowing close to the ground, mowing plus waterlogging, and mowing plus tilling were recommended, respectively. For S. alterniflora in river channels or ditches, mowing plus tilling or mowing plus waterlogging were recommended according to the factors, such as the width of the channels or ditches. For S. alterniflora on the ditch slope, mowing plus shading was recommended.
- invasion,
- mowing,
- waterlogging,
- ploughing,
- clonal ramet,
- seedling

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References(40)

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