Volume 32 Issue 4
Jul.  2015
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LIAO Xiaofeng, LONG Xiuqin, LI Anding, XIE Yuangui. Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland[J]. Journal of Zhejiang A&F University, 2015, 32(4): 643-647. doi: 10.11833/j.issn.2095-0756.2015.04.022
Citation: LIAO Xiaofeng, LONG Xiuqin, LI Anding, XIE Yuangui. Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland[J]. Journal of Zhejiang A&F University, 2015, 32(4): 643-647. doi: 10.11833/j.issn.2095-0756.2015.04.022

Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland

doi: 10.11833/j.issn.2095-0756.2015.04.022
Funds:

十二五国家科技支撑计划项目(2011BAC02B0202;2011BAC02B0201)

  • Received Date: 2014-10-10
  • Rev Recd Date: 2014-11-09
  • Publish Date: 2015-08-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland

doi: 10.11833/j.issn.2095-0756.2015.04.022
Funds:

十二五国家科技支撑计划项目(2011BAC02B0202;2011BAC02B0201)

Abstract: To provide a reference for invasive techniques and prevention concerning Alternanthera philoxeroides, plant height and coverage of invasive A. philoxeroides in the Caohai Plateau Wetland ecosystem were surveyed at different water depths using a quadrat survey method with setting 45 temporary plots(1 m1 m) radomly and achieving 29 samples of data. Then, the water ecological amplitude of A. philoxeroides was determined using the Gaussian Model. Results showed that (1) based on plant height, the optimal ecological amplitude interval was[-0.73 cm,69.99 cm], and plant height reached the maximum at 34.63 cm. (2) Based on coverage, the optimal ecological amplitude interval was [9.55 cm,67.29 cm], and coverage reached the maximum at 38.40 cm. (3) Based on coverage and plant height, the optimal ecological amplitude interval was [9.55 cm,67.29 cm], and the growth of A. philoxeroides reached the best at 37.53 cm. (4) In Caohai Wetland habitats, A. philoxeroides adaptability to water depth increased although it decreased with coverage and plant height. An ecological amplitude with a greater depth successfully provided protection from invasion in the Caohai Wetland ecosystems. Overall, the adaptability of A. philoxeroides to water depth provided new ideas for controlling wetlands. [Ch, 2 fig. 1 tab. 18 ref.]

LIAO Xiaofeng, LONG Xiuqin, LI Anding, XIE Yuangui. Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland[J]. Journal of Zhejiang A&F University, 2015, 32(4): 643-647. doi: 10.11833/j.issn.2095-0756.2015.04.022
Citation: LIAO Xiaofeng, LONG Xiuqin, LI Anding, XIE Yuangui. Water depth ecological amplitude of Alternanthera philoxeroides based on coverage and plant height in the Caohai Wetland[J]. Journal of Zhejiang A&F University, 2015, 32(4): 643-647. doi: 10.11833/j.issn.2095-0756.2015.04.022

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