| Invasion and control of water hyacinth （Eichhornia crassipes） in China |
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| 作者姓名： | Chu JJ Ding Y Zhuang QJ |
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| 作者单位： | School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China |
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| 基金项目： | 上海市科委资助项目;上海市科委资助项目 |
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| 摘 要： | INTRODUCTION Water hyacinth (Eichhornia crassipes) was first introduced from South America into China as a good fodder plant in 1901, and had become a serious en- vironmental problem in China by the early 21st cen- tury (Ding et al., 2001). Of the total loss of USD 7 billion brought about by foreign weed species in China, water hyacinth occupies the major proportion. The large coverage of this weed on water would re- duce sunlight penetration and lower oxygen content in water, which ha…
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| 关 键 词： | 入侵 控制 风眼莲 中国 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006-04-24 |
Invasion and control of water hyacinth (Eichhornia crassipes) in China |
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| Chu JJ,Ding Y,Zhuang QJ.Invasion and control of water hyacinth (Eichhornia crassipes) in China[J].Journal of Zhejiang University Science,2006,7(8):623-626. |
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| Authors: | Jian-jun Chu Yi Ding Qi-jia Zhuang |
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| Institution: | (1) School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China |
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| Abstract: | By the time of primary 21 st century, water hyacinth had become a serious environmental problem in China. Water hyacinth contributes to the major part of ecological hazards from the invasion of foreign plant species, which is estimated about USD 7 billion a year in values.
In the past 10 years, herbicides glyphosate, 2,4-D and paraquat have been used in controlling water hyacinth in China. Although the herbicides provided effective control on the weed in some areas, they could not provide the sustainable inhibition on the weed population, while would lead to pollution on water at various levels. At present, the herbicide application on water hyacinth is forbidden in many areas of China such as Shanghai. In this situation, the asexual reproduction inhibitor, KWH02, was invented for controlling water hyacinth and it provided about 70% of growth inhibition without any risk of dead plant pollution.
It has been about 10 years for bio-control of water hyacinth in China. Works focused on mainly the efficacy and safety of the utilization of foreign insects. Researches on microorganism herbicides to control water hyacinth were started and obtained primary achievements in recent years.
Although there are different opinions on how to face the water hyacinth problem in China, it is accepted widely that the control methods should be high efficient and safe with low cost. Some practical measures for integrated management of water hyacinth are suggested. |
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| Keywords: | Invasion Control Water hyacinth China |
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