叶志鸿
植物与重金属的相互作用规律和机理以及重金属污染水体和土壤的植物修复
个性化签名
- 姓名:叶志鸿
- 目前身份:
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学术头衔:
博士生导师
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学科领域:
生态学
- 研究兴趣:植物与重金属的相互作用规律和机理以及重金属污染水体和土壤的植物修复
2004-现在 中山大学生命科学学院,生态学,教授、博导
2000-2003 香港浸会大学,生态学,博士后/访问研究员
1998-2000 美国加州 (California) 大学柏克莱(Berkeley)分校,生态学,博士后
1995-1998 香港浸会大学,生态学,博士后
1992-1995 英国谢菲尔德(Sheffield)大学,生态学,博士
1987-1990 广州中山大学,生态学,硕士
1978-1981 广州中山大学,植物学,本科
本人的主要研究工作大多围绕植物与重金属的相互作用规律和机理以及重金属污染水体和土壤的植物修复而展开。在研究利用人工湿地修复(处理)各种金属(微量元素)污染废水、典型湿地植物对重金属的吸收、积累、分布和耐性特征、根表面铁/锰膜对湿地植物重金属吸收和分布的影响、重金属矿业废弃地的植物修复以及重金属超富集植物的筛选和比较研究等方面开展了大量的研究工作,取得了一定成绩,在New Phytologist等刊物上发表SCI收录论文 30多篇, 参编英文专著2部, 获得中国高校自然科学二等奖1项.
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叶志鸿, Z.H. YE*, A.J.M. BAKER*, M.H. WONG, and A.J. WILLIS*
,-0001,():
-1年11月30日
Zinc (Zn), lead (Pb) and cadmium (Cd) tolerance in populations of seedlings of Phragmites australis raised from seeds collected from a mine site (Plombie' res, Belgium) contaminated with Zn, Pb and Cd and three clean' sites (Felixstowe, UK; Wisbech, UK; and Mai Po, Hong Kong) were studied under glasshouse conditions. Small differences were found between the metal-contaminated population and the three clean' populations when seedlings were grown in 1-0.μgml-, Zn and 10-0μg ml-, Pb treatment solutions. In general, however, different populations of seedlings showed similar growth responses, metal uptake and indices of Zn, Pb and Cd tolerance when cultured in the same metalcontaminated media for 89 d or in the same metal treatment solutions (ZnSO%:1-0 and 4-0μg ml-, Zn; Pb(NO$): 10-0 and 25-0μg ml-, Pb; CdSO%: 0-5 and 1-0μg ml-, Cd) for 3 weeks. There was insufficient evidence to support the hypothesis that the metal-contaminated population has evolved to a Zn-, Pb- or Cd-tolerant ecotype but the results indicated some differentiation between the populations with that from Hong Kong being the least productive under the experimental conditions used. The implications of the findings on selection of provenances for use in constructed wetlands for wastewater treatment are discussed.
Metal accumulation,, heavy metal tolerance,, Phragmites australis,, population differentiation.,
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叶志鸿, Z.H. YE*, M.H. WONG*, A.J.M. BAKER and A.J. WILLIS
,-0001,():
-1年11月30日
The biomass and metal concentrations of two populations of Phragmites australis were studied by growth in a glasshouse in three ameliorated substrata [Mai Po (MP) sediment, fly ash (FA) and lead/zinc mine tailings (TL)] under flooded and dry conditions for 90 d. Plants were raised from seeds from clean' (Mai Po, Hong Kong) and metal-contaminated (Plombieres, Belgium) sites. Seedling growth was best in fly ash, root dry weights being higher in flooded than dry conditions, and growth poorest in tailings, in which shoot and root dry weights were higher under dry conditions for both populations. However, in the MP substratum conditions did not signi
Biomass,, flooded and dry conditions,, metal uptake,, Phragmites australis.,
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叶志鸿, Z.H. Ye, , J.W.C. Wong, M.H. Wong
Restoration Ecology Vol. 8 No.3, pp. 289-295,-0001,():
-1年11月30日
Land disturbed by mining in China is a serious problem and lead/zinc (Pb/Zn) mine tailings constitute the majority of the metal mine tailings produced in Guangdaong Province, China. A greenhouse study was therefore conducted to evaluate the effects of lime (40, 80, 120, and 160 t/ha) and manure compost (50 and 100 t/ha) amendment on the revegetation of the Pb/Zn mine tailings using Cynodon dactylon (Bermuda grass) and Agropyron elongatum (tall wheatgrass). The results showed that a combination of lime and manure compost amendment together with deionized water leachating was able to increase pH, reduce electrical conductivity and diethylenetraminepentaacetic acid (DTPA)-extractable concentrations of Zn and Pb in tailings. Using ù 80 t/ha lime amendment with the supplement of fertilizer or manure compost was able to effectively improve germination of both C. dactylon and A. elongatum. The highest dry weight yields were obtained in tailings receiving ù 80 t lime/ha and 100 t manure compost/ha for both plant species. Plant tissue analysis showed that lime amendment at 120–160 t/ha reduced Zn accumulation in both shoot and root of C. dactylon. However, this trend was not observed for Pb.
Pb/, Zn mine,, tailing amendment,, yield,, Cynodon dactylon,, Agropyron elongatum.,
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【期刊论文】Revegetation of Pb/Zn Mine Tailings, Guangdong Province, China
叶志鸿, Z.H. Ye, , J.W.C. Wong, M.H. Wong, A.J.M. Baker, W.S. Shu, C.Y. Lan
Restoration Ecology Vol. 8 No.1, pp. 87-92,-0001,():
-1年11月30日
The Lechang lead/zinc mine is located in the north part of Guangdong Province, southern China. The tailings residue from the extraction of lead/zinc ores was permanently stored in tailings ponds, which required revegetation to reduce the environmental impact. A field study was, therefore, conducted to evaluate the effects of different ameliorants, including: (1) pig manure (PM); (2) mushroom compost (MC); (3) burnt coal residue (BC); (4) fly ash (FA); and (5) surface soil on the growth of Agropyron elongatum (tall wheat grass), Cynodon dactylon (Bermuda grass), Lolium multiflorum (Italian ryegrass), and Trifolium repens (clover) in the tailings residue. The results from the core profiles indicated that adding FA (10cm) or BC (15cm) as a barrier layer between the cover soil and the tailings could increase pH, compared to the treatment with soil only. C. dactylon grew well and had a high cover (90–100%) in all the treatment plots except the control plots without any amendment. A. elongatum and L. multiflorum had a higher cover when grown in plots covered with a barrier layer using FA or BC (both with surface soil), than those grown in plots covered with surface soil only. Treatment plots receiving a thicker soil cover (30cm) had a better dry weight yield than those with a thinner soil cover (15cm), regardless of the barrier layer. The results from this study indicate that the use of either 15cm BC or 10cm FA as a barrier layer with surface soil, or the use of 38 tonnes PM/ha and 6cm MC, were effective for the revegetation of Pb/Zn mine tailings. C. dactylon was the best species among the four species used for revegetation.
reclamation,, Pb/, Zn mine tailings,, burnt coal,, mushroom compost,, flyash,, Bermuda grass,, Italian ryegrass,, clover.,
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叶志鸿, Q. Sun a, b, d, Z.H. Ye c, X.R. Wang b, M.H. Wong d, *
Phytochemistry 66 (2005) 2549-2556,-0001,():
-1年11月30日
Phytochelatins (PCs) have been induced in a large range of plant species, but their role in heavy metal tolerance is unclear. Sedum alfredii is a new zinc (Zn) hyperaccumulator and lead (Pb) accumulator found in an old Pb/Zn mine in the Zhejiang Province of China. Until now, the mechanisms of its hyperaccumulation/accumulation and tolerance were poorly understood. The aim of this work was to investigate whether PCs were differentially produced in mine populations of S. alfredii compared with a non-mine control of the same species. The results showed that plants from the mine site were more tolerant to increasing Zn and Pb concentrations than those from the control site. No PCs and cysteine (Cys) were detected by pre-column derivatization with HPLC fluorescence in any tissues of two populations at any treatment, which in turn indicated they were not responsible for Zn and Pb tolerance in the mine population. Instead, Zn and Pb treatments resulted in the increase of glutathione (GSH) for both populations in a tissue-dependent manner. Significant increases were observed in leaf, stem and root tissues of plants grown on the mine site. The results suggest that GSH, rather man PCs, may be involved in Zn and Pb transport, hyperaccumulation/accumulation and tolerance in mine population of S. alfredii.
Sedum alfredii, Glutathione, Phytochelatins, Zinc hyperaccumulator, Lead accumulator
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叶志鸿, H.B. Wang, Z.H. Ye and W.S. Shu, W.C. Li. and M.H. Wong, C.Y. Lan
,-0001,():
-1年11月30日
Aiming at searching for new arsenic (As) hyperaccumulators, field surveys were conducted at 12 As-contaminated sites located in Guangxi and Guangdong Provinces of southern China. Samples of 24 fern species belonging to 16 genera and 10 families as well as their associated soils were collected and As concentrations in plant and soil samples were determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The results show that among 24 fern species, Pteris multifida and P. oshimensis can (hyper)accumulate As in their fronds with high concentrations in addition to P. vittata and P. cretica var. nervosa, which have been previously identified as As hyperaccumulators. Total As concentrations in soils associated with P. multifida and P. oshimensis varied from 1262 to 47,235mg kg-1, but the DTPA-extractable As concentrations were relatively low, with a maximum of 65mg kg-1. Forty-four of 49 samples of P. multifida collected from five sites and 3 of 13 samples of P. oshimensis collected from one site accumulated over 1000mg As kg-1 in their fronds and As concentrations in the fronds were higher than those in the petioles and rhizoids. Although As concentrations in the fronds of P. oshimensis (789mg kg-1 averaged, range 301-2142 mg kg-1) were comparatively lower than that of P. multifida (1977mg kg-1, 624-4056mg kg-1), its high aboveground biomass makes it more suitable for phytoremediating As-contaminated soils. Among all the species in Pteris genus studied, Pteris semipinnata accumulated only very lowAs concentration in its fronds (8mgkg-1, 1-18mgkg-1). Further research is needed to study the differences in As uptake and accumulation among fern species in the same or other genera.
arsenic,, fern,, Pteris multifida,, P., oshimensis,, phytoremediation
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叶志鸿, Z.H. Ye a, Z.Y. Yang b, G.Y.S. Chan c, M.H. Wong a, *
Environment International 26 (2001) 449-455,-0001,():
-1年11月30日
Legumes are ideal for revegetation of metal-mined wastelands which lack nitrogen (N). A greenhouse study was conducted to investigate the feasibility of using Sesbania rostrata and S. cannabina for the reclamation of lead/zinc (Pb/Zn) mine tailings and to evaluate the effects of organic amendment using sewage sludge (0%, 25%, 50%, and 75%, v/v). The results showed that both species could continue to grow on the highly toxic tailings substrata for at least 80 days, although their growth suffered from adverse effects. That S. rostrata with stem and root nodules had better growth (biomass, growth rates, and biomass of nodules) than S. cannabina suggested that S. rostrata is a better choice as a pioneer species for revegetation of the mine tailings. Stem nodules had less obvious adverse effects imposed by tailings than root nodules. Application of sewage sludge increased contents of total carbon (C), N, phosphorus (P), and potassium (K), and reduced total Zn, Pb, Cd, and DTPA-extractable Pb and Cd in tailings substrata. These, in turn, reduced metal (Zn, Pb, and Cd) uptake and accumulation in plant tissues, and improved plant growth performance, including biomass, growth rates, stem nodulation. Fifty percent (v/v) of sludge application rate was the best loading rate for plant growth. D 2001 Elsevier Science Ltd. All rights reserved.
Revegetation, Pb/, Zn mine tailings, Sewage sludge, S., rostrata, S., cannabina, China
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叶志鸿, YU H. YU, WEI S. FENG, YUN F. SHEN, PRC ZHI H. YE*, MING H. WONG
Environmental Management Vol. 36, No.6, pp. 842-848,-0001,():
-1年11月30日
The performance of a wetland system in treating lead (Pb)/zinc (Zn) mine drainage was evaluated by using the polyurethane foam unit (PFU) microbial community (method), which has been adopted by China as a standardized procedure for monitoring water quality. The wetland system consisted of four cells with three dominant plants: Typha latifolia, Phragmites australis and Paspalum distichum. Physicochemical characteristics [pH, EC, content of total suspended solid (TSS) and metals (Pb, Zn, Cd, and Cu)] and PFU microbial community in water samples had been investigated from seven sampling sites. The results indicated that the concentrations of Pb, Zn, Cd, Cu, and TSS in the mine drainage were gradually reduced from the inlet to the outlet of the wetland system and 99%, 98%, 75%, 83%, and 68% of these metals and TSS respectively, had been reduced in concentration after the drainage passed through the wetland system. A total of 105 protozoan species were identified, the number of protozoa species and the diversity index (DI) gradually increased, while the heterotrophic index (HI) gradually decreased from the inlet to the outlet of the wetland system. The results indicated that DI, HI, and total number species of protozoa could be used as biological indicators indicating the improvement of water quality.
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叶志鸿, Zhihong Ye, a, Alan J.M. Baker a, *, Ming-Hung Wong b, Arthur J. Willis a
Aquatic Botany 61 (1998) 55-67,-0001,():
-1年11月30日
The effects of iron plaque on the growth of Typha latifolia L. and its accumulation of zinc (Zn), lead (Pb) and cadmium (Cd) were investigated under field conditions and in nutrient solution cultures in the laboratory. In the field, Zn concentrations (but not Cd) on the root surface were positively related to Fe concentrations on the root surface. In the laboratory, seedlings with and without iron plaque on their roots were exposed to 2.0 and 1.0mg ml
Metal immobilization, Metal toxicity, Wetlands
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叶志鸿, Z.H. Ye a, J.W.C. Wong a, M.H. Wong a*, C.Y. Lan b, A.J.M. Bakerc
BioresourceTechnology 69 (1999) 35-43,-0001,():
-1年11月30日
The Lechang lead/zinc mine is located at the north of Guangdong Province in southern China. The residual tailings from the extraction of lead/zinc ores were permanently stored in tailings ponds which required revegetation to reduce their impact on the environment. Therefore, a greenhouse study was conducted to evaluate the effects of lime (0.5, 1.0, 2.0 and 4.0t ha-l) and pig manure (12.6, 25.2, 37.8, 50.3 and 75.5t ha-l) amendment on the revegetation of the Pb/Zn mine tailings using Agropyron elongatum (tall wheatgrass) and Trifolium repens (clover). The results showed that the applications of lime or pig manure increased pH, reduced electrical conductivity (EC) and DTPA-extractable concentrations of Zn, Pb and Cd in the tailings. Compared with tailings without amendment, application of lime alone (2 tha-I) did not improve growth of either species. However, using lime with supplemental fertilizer (150 kg ha-of N) improved shoot growth of A. elongatum, especially at lime amendment rates of 0.5 and 4.0t ha 1+150kg hai of N, but it did not improve root growth of either plant species. When compared with the tailings amended with lime (2t ha-l) only, tailings receiving pig manure (25.2-50.3t ha-1) and 2t ha-1 of lime effectively improved shoot and root growth and reduced tailings toxicity to seedlings of T. repens, especially at 50.3t ha-1 of pig manure. However, only tailings receiving 37.8t ha-1 of pig manure and 2t ha-1 of lime significantly increased shoot and root dry weight of A. elongaturn. Plant tissue analysis showed that applications of lime and pig manure did not significantly reduce Zn, Pb and Cd uptake and accumulation in A. elongatum. However, higher pig manure amendment rates (>25.2t ha-1) significantly reduced Pb content in shoots of T. repens.
China, Pb/, Zn mine, Tailings amendment, Yields, Agropyron elongatum, Trifolium repens
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