铅锌矿渣污染土壤的重金属含量及真菌群落特征分析
作者：
许洪扬;付冰清;康慧;黄鑫浩;王钧;...
期刊：
湖南农业大学学报(自然科学版) ,2021年47(2):203-211 ISSN：1007-1032
作者机构：
[许洪扬; 王钧; 黄鑫浩; 付冰清] 中南林业科技大学生命科学与技术学院;[康慧] 长沙环境保护职业技术学院;[朱凡] 湖南农业大学风景园林与艺术设计学院
关键词：
铅锌矿渣;重金属不同化学形态;真菌群落;高通量测序
摘要：
研究了湖南郴州某铅锌选矿厂铅锌矿渣污染下土壤重金属的不同化学形态含量、土壤化学性质和真菌群落的多样性。结果表明:与湖南省重金属修复地方标准相比,采样区4种重金属Zn、Pb、Cd、Cu的污染程度依次降低;同种重金属不同化学形态之间比较,铅铁锰氧化态、锌醋酸提取态、镉醋酸提取态、铜残渣态含量较高;重金属污染显著改变真菌群落的组成和结构;敏感性真菌(球囊菌门(Glomeromycota))的相对丰度随重金属污染程度的增加而降低,而耐受性真菌(子囊菌门(Ascomycota)、担子菌门(Basidiomycota)、被孢囊门(Mortierellomycota)、被孢菌属(Mortierella)、青霉菌属(Penicillium)和镰刀菌属(Fusarium))的相对丰度增加,但在重污染情况下有所减少;冗余分析(RDA)和方差分解分析(VPA)表明,重金属是影响真菌群落变化的主要因素。
语种：
中文
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Inhibition of photosynthesis in melia azedarach and ligustrum lucidum induced by manganese toxicity using ojip chlorophyll a fluorescence transient
作者：
Liu, M. S.;Huang, X. H.;Wang, R. J.;Xu, H. Y.;Zhu, F.
期刊：
PHOTOSYNTHETICA ,2021年59(1):148-159 ISSN：0300-3604
作者机构：
[Huang, X. H.; Liu, M. S.; Xu, H. Y.] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Peoples R China.;[Zhu, F.] Hunan Agr Univ, Coll Landscape Architecture & Art Design, Changsha 410128, Peoples R China.;[Wang, R. J.] Guangxi Zhuang Autonomous 11 Reg Forestry Res Ins, Guangxi Key Lab Super Trees Resource Cultivat, Nanning, Peoples R China.
关键词：
energy conversion efficiency;heavy metal stress;JIP-test;OJIP curve
摘要：
Manganese (Mn) excess is a major abiotic stress for plant growth. In the present study, we investigated the effects of Mn on photosynthesis in Ligustrum lucidum and Melia azedarach leaves using chlorophyll fluorescence transients. Both plant species were exposed to two Mn concentrations (0.5 and 1 mmol) for 10 and 30 d. Results showed that excess Mn significantly inhibited photosynthesis. With the increase of Mn concentration and stress time, the inhibition was more serious. Mn stress impaired PSII at the donor and the acceptor side by damaging the oxygen-evolving complex and limiting electron transport downstream of QA in both trees. A significant decline in 820 nm reflection curve absorption was observed in M. azedarach, suggesting that the oxidization-reduction reactions in PSI were inhibited but this phenomenon was not observed in L. lucidum. Therefore, excess Mn impaired the whole electron transport chain associated with inactive PSII reaction centers in Ligustrum lucidum and inhibited oxidization-reduction reactions in PSI in M. azedarach. © The authors.
语种：
英文
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重金属Mn对苦楝叶片光系统性能的影响
作者：
王仁杰;朱凡;梁惠子;黄鑫浩;王旭旭;...
期刊：
生态学报 ,2020年40(6):2019-2027 ISSN：1000-0933
通讯作者：
Zhu, F.
作者机构：
[朱凡] 中南林业科技大学生命科学与技术学院,长沙410004;[朱凡] 南方林业生态应用技术国家工程实验室,长沙410004;[梁惠子; 王仁杰; 王旭旭] 中南林业科技大学;[楚晶晶; 黄鑫浩] 南方林业生态应用技术国家工程实验室
通讯机构：
Central-South University of Forestry and Technology, Changsha, China
关键词：
光系统;光合电子传递链;快速叶绿素荧光;820 nm光吸收;苦楝
摘要：
重金属锰严重抑制植物的光合作用,影响Mn污染地区植被恢复。为给Mn污染地区植被恢复提供合适的树种,以木本植物苦楝为研究对象,分别将0、10 g和30 g的MnCl_2(CK、L1和L2)溶于纯水中配成溶液掺入盆栽土壤,通过快速叶绿素荧光诱导动力学曲线、820 nm光吸收曲线以及光合气体交换参数测定技术,研究重金属Mn对苦楝叶片光系统I(PSI)、光系统Ⅱ(PS Ⅱ)性能及其协调性的影响。结果表明,Mn胁迫下,苦楝叶片PSⅡ性能指数(PI_(ABS))表现为L2<L1<CK,且差异性显著(P< 0.05); K点(W_k)和J点(V_j)均显著大于CK;电子从Q_A传递到PSⅠ受体侧的效率(Ψ_((Ro)))和捕获的激子将电子传递到电子链中Q_A下游Q_B等电子受体的概率(Ψ_((Eo)))随着时间的推移呈现出先上升后下降的趋势; PSI性能(ΔI/I0)显著低于CK(P<0.05), PSⅠ与PSⅡ的协调性(Φ_((PSI/PSⅡ)))在L2水平下差异性显著(P<0.05);净光合速率(Pn)、气孔限制值(Ls)和RuBP羧化效率均降低,胞间CO_2浓度(Ci)增高。以上结果表明重金属Mn显著影响了苦楝叶片PSⅡ和PSI性能,使苦楝光合能力下降。
语种：
中文
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820nm光吸收曲线技术在逆境条件下叶片光系统Ⅰ性能研究中的应用
作者：
王仁杰;蒋燚;朱凡;唐正;刘雄盛;...
期刊：
广西林业科学 ,2020年49(01):152-155 ISSN：1006-1126
作者机构：
广西壮族自治区林业科学研究院,广西南宁 530002;中南林业科技大学生命科学与技术学院,湖南长沙 410004;[王仁杰; 王勇; 刘雄盛; 姜英; 蒋燚] 广西壮族自治区林业科学研究院;[唐正; 朱凡] 中南林业科技大学
关键词：
820 nm光吸收;光系统Ⅰ（PSⅠ）;光化学效率;电子传递;能量分配
摘要：
光合作用是植物生长发育的基础,在逆境条件尤其是低温和弱光等胁迫下,叶片光系统Ⅰ(PSⅠ)性能下降引起越来越多的关注.820 nm光吸收曲线技术可以用来检测发生在PSⅠ的原初光化学反应.本文总结了利用820 nm光吸收曲线技术测定PSⅠ的光化学效率、环式电子传递能力和能量分配的基本原理,及在逆境条件下的研究成果,以期为820 nm光吸收曲线技术在其它条件下对PSⅠ性能影响提供理论和技术支撑.
语种：
中文
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The effects of ectomycorrhizal fungi on heavy metals’ transport in Pinus massoniana and bacteria community in rhizosphere soil in mine tailing area
作者：
Yu, Peiyi;Sun, Youping;Huang, Zhongliang;Zhu, Fan;Sun, Yujing;...
期刊：
Journal of Hazardous Materials ,2020年381:121203 ISSN：0304-3894
通讯作者：
Jiang, Lijuan
作者机构：
[Jiang, Lijuan; Yu, Peiyi; Zhu, Fan; Sun, Yujing] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, 498 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.;[Sun, Youping] Utah State Univ, Dept Plants Soils & Climate, 4820 Old Main Hill, Logan, UT 84332 USA.;[Huang, Zhongliang] Hunan Acad Forestry, 658 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.;[Zhu, Fan] Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, 498 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Jiang, Lijuan] C;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, 498 South Shaoshan Rd, Changsha 410004, Hunan, Peoples R China.
关键词：
Bacterial networks;Biomarkers;Community structure;Heavy metal contamination;Suillus luteus
摘要：
Pinus massoniana is one of the potential tree species of afforestation in barren mine tailing area, and ectomycorrhizal fungi contributes remarkably to its survival. However, how ectomycorrhizal fungi interacts with Pinus massoniana under heavy metals' stress is unknown. Two systems (Pinus massoniana inoculated with and without ectomycorrhizal fungi) were designed, and each system contained rhizosphere and non-rhizosphere, while bulk soil was sampled as control. The results showed that treatment of ectomycorrhizal fungi inoculation could obviously improved the absorption of soil moisture, total carbon/total nitrogen and nutrients, while reduced the bulk density and heavy metals of soil when compared with control (p0.05). The heavy metals accumulating in plants' roots with ectomycorrhizal fungi were greater than that without ectomycorrhizal fungi. Conversely, they were lower in shoots with ectomycorrhizal fungi. The bacterial community were affiliated with 23 bacterial phyla, 70 classes, 115 orders, 201 families, and 363 genera. Constrained Principal Coordinate Analysis and redundancy analysis demonstrated that bacterial communities structure in the soil inoculated with or without ectomycorrhizal fungi and bulk soil were distinguishable, but no difference between rhizosphere and non-rhizosphere. The LEfSe analysis showed Acidobacteria, Actinobacteria, and Proteobacteria were the dominant phyla that contributed to the difference among treatments.
语种：
英文
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Response of soil respiration to nitrogen addition in two subtropical forest types
作者：
Yan, Wende;Chen, Xiaoyong* ;Peng, Yuanying;Zhu, Fan;Zhen, Wei;...
期刊：
土壤圈(英文版) ,2020年30(4):478-486 ISSN：1002-0160
通讯作者：
Chen, Xiaoyong
作者机构：
[Peng, Yuanying; Yan, Wende; Zhu, Fan; Chen, Xiaoyong; Zhen, Wei; Zhang, Xuyuan] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Peoples R China.;[Yan, Wende; Zhu, Fan; Chen, Xiaoyong] Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Peoples R China.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, Div Sci, University Pk, PA 60484 USA.;[Peng, Yuanying] Coll DuPage, Nat Sci Div, Glen Ellyn, IL 60137 USA.
通讯机构：
[Chen, Xiaoyong] C;[Chen, Xiaoyong] N;[Chen, Xiaoyong] G;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Peoples R China.;Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Peoples R China.
关键词：
belowground biomass;fertilizer application;fine root;forest soil;growth response;microbial activity;nitrogen;nutrient enrichment;soil microorganism;soil respiration;subtropical region;tropical forest;China;Cinnamomum camphora;Pinus elliottii
摘要：
Anthropogenic activities have increased nitrogen (N) deposition in terrestrial ecosystems, which directly and indirectly affects soil biogeochemical processes, including soil respiration. However, the effects of the increases in N availability on soil respiration are not fully understood. In this study, soil respiration was measured using an infrared gas analyzer system with soil chambers under four N treatments (0, 5, 15, and 30 g N m–2 year–1 as control, low N (LN), moderate N (MN), and high N (HN), respectively) in camphor tree and slash pine forests in subtropical China. Results showed that soil respiration rates decreased by 37% in the camphor tree forest and 27% in the slash pine forest on average on an annual base, respectively, in the N-fertilized treatments when compared with the control. No significant differences were found in the soil respiration rate among the LN, MN, and HN treatments in both forest types as these fertilized plots reached an adequate N content zone. In addition, soil microbial biomass carbon (C) content and fine root biomass declined in N-treated plots compared to the control. Our results indicated that elevated N deposition might alter the tree growth pattern, C partitioning, and microbial activity, which further affect soil C sequestration by reducing soil respiration in subtropical forests of China. © 2020 Soil Science Society of China
语种：
英文
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Effects of N Addition on Soil Exchangeable Cations in a Young Keteleeria fortunei var. cyclolepis Forest
作者：
Wang, Yong;Huang, Xinhao;Jiang, Yi;Liu, Xiongsheng;Zhu, Fan*
期刊：
Ecoscience ,2019年26(3):259-268 ISSN：1195-6860
通讯作者：
Zhu, Fan
作者机构：
[Liu, Xiongsheng; Jiang, Yi; Wang, Yong] Guangxi Zhuang Autonomous Reg Forestry Res Inst, Guangxi Key Lab Super Trees Resource Cultivat, Nanning, Peoples R China.;[Huang, Xinhao; Zhu, Fan] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha, Hunan, Peoples R China.
通讯机构：
[Zhu, Fan] C;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha, Hunan, Peoples R China.
关键词：
N addition;soil exchangeable cation;soil-buffering capacity;foliar nutrient;Keteleeria fortunei var. cyclolepis;ajout d’azote;cations échangeables du sol;capacité tampon du sol;nutriments foliaires;Keteleeria fortunei var. cyclolepis
摘要：
The effects of simulated nitrogen (N) addition on soil exchangeable cations were assessed in a young Keteleeria fortunei var. cyclolepis forest in subtropical China. Three N addition schemes with three replications were designed for the forest control (without N addition, CK), low N (5 g N m-2 a-1, L-N) and high N (50 g N m-2 a-1, H-N). Results showed that continuous N addition resulted in increased, although not statistically significant, plant biomass of K. fortunei var. cyclolepis, while it significantly decreased cation exchange capacity (CEC), base saturation (BS) and exchangeable base cations (BCs) (especially Ca2+ and Mg2+ under high N addition). General soil properties (except total P) were significantly affected by high N addition compared with the control. High N addition significantly increased the concentration of foliar N, and decreased the concentrations of foliar P, Ca2+ and Mg2+. Soil pH was also significantly altered by increased N addition, indicating that N addition significantly accelerated soil acidification. This study found that N addition was negatively correlated with soil pH, CEC and Ca2+, and that loss of BCs might be related to increased NO3-. © 2019 The Author(s).
语种：
英文
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Photosystem II of Ligustrum lucidum in response to different levels of manganese exposure
作者：
Liang, Hui-Zi;Zbu, Fan* ;Wang, Ren-Jie;Huang, Xin-Hao;Chu, Jing-Jing
期刊：
Scientific Reports ,2019年9(1):12568 ISSN：2045-2322
通讯作者：
Zbu, Fan
作者机构：
[Huang, Xin-Hao; Liang, Hui-Zi; Chu, Jing-Jing; Zbu, Fan] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;[Wang, Ren-Jie; Zbu, Fan] Engn Lab Appl Technol Forestry & Ecol Southern Ch, Changsha 410004, Hunan, Peoples R China.
通讯机构：
[Zbu, Fan] C;[Zbu, Fan] E;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Changsha 410004, Hunan, Peoples R China.;Engn Lab Appl Technol Forestry & Ecol Southern Ch, Changsha 410004, Hunan, Peoples R China.
摘要：
<jats:title>Abstract</jats:title><jats:p>The toxic effect of excessive manganese (Mn) on photosystem II (PSII) of woody species remains largely unexplored. In this study, five Mn concentrations (0, 12, 24, 36, and 48 mM) were used, and the toxicity of Mn on PSII behavior in leaves of <jats:italic>Ligustrum lucidum</jats:italic> was investigated using <jats:italic>in vivo</jats:italic> chlorophyll fluorescence transients. Results showed that excessive Mn levels induced positive L- and K- bands. Variable fluorescence at 2 ms (V<jats:sub>J</jats:sub>) and 30 ms (V<jats:sub>I</jats:sub>), absorption flux (ABS/RC), trapped energy flux (TR<jats:sub>o</jats:sub>/RC), and dissipated energy flux (DI<jats:sub>o</jats:sub>/RC) increased in Mn-treated leaves, whereas the performance index (PI<jats:sub>ABS</jats:sub>), electron transport flux (ET<jats:sub>o</jats:sub>/RC), maximum quantum yield (φ<jats:sub>Po</jats:sub>), quantum yield of electron transport (φ<jats:sub>Eo</jats:sub>), and probability that an electron moves further than Q<jats:sub>A</jats:sub><jats:sup>−</jats:sup> (ψ<jats:sub>o</jats:sub>) decreased. Also, excessive Mn significantly decreased the net photosynthesis rate and increased intercellular CO<jats:sub>2</jats:sub> concentration. The results indicated that Mn blocked the electron transfer from the donor side to the acceptor side in PSII, which might be associated with the accumulation of Q<jats:sub>A</jats:sub><jats:sup>−</jats:sup>, hence limiting the net photosynthetic rate.</jats:p>
语种：
英文
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重金属铅对榉树幼树叶绿素荧光参数的影响
作者：
邱岚;何颀;黄鑫浩;朱凡;王仁杰;...
期刊：
中南林业科技大学学报 ,2018年38(6):123-129 ISSN：1673-923X
作者机构：
铜仁学院农林工程与规划学院, 贵州, 铜仁, 554300;郴州市林业科学研究所, 湖南, 郴州, 423000;中南林业科技大学生命科学与技术学院, 湖南, 长沙, 410004;[邱岚] 铜仁学院农林工程与规划学院, 贵州, 铜仁, 554300;[何颀] 郴州市林业科学研究所, 湖南, 郴州, 423000
关键词：
叶绿素荧光;热耗散;抗逆性;榉树
摘要：
以阔叶树种榉树1年生幼树为对象,采用室内盆栽,通过4次连续掺入PbCl_2溶液于土壤中,研究连续Pb处理榉树叶片的光合和光系统Ⅱ (PS Ⅱ)叶绿素荧光特性,以揭示铅胁迫下榉树抗逆性的机制。结果表明, 4次Pb处理下榉树的最大净光合速率(P_n)、蒸腾速率(T_r)、气孔导度(G_s)和气孔阀值(L_s)均表现为Pb处理<对照,且差异性显著(P < 0.05),胞间CO_2(C_i)则表现为Pb处理>对照,出现了由非气孔限制引起的P_n下降。4次Pb处理下PS Ⅱ最大光化学效率(F_v/F_m)、PS Ⅱ实际光化学效率(Y Ⅱ)均低于对照,其中Y Ⅱ差异显著(P < 0.05);光化学猝灭(qP)显著降低,非光化学猝灭(NPQ)显著升高,说明榉树在铅胁迫下发生了明显光抑制现象,但有效地将PS Ⅱ的过剩光能以热的形式耗散掉。铅对榉树PS Ⅱ量子产量的转化和分配有影响,Y Ⅱ(PS Ⅱ非环式电子传递效率)显著低于对照,Y_(NPQ)(可调节性能量耗散)和Y_(NO)(非调节性能量耗散)高于对照,说明榉树能有效地通过自身调节,将过剩光能以热的形式耗散,使PSII反应中心受伤害的程度降至最低,这进一步说明了榉树幼树对Pb具有较强的抗逆性。
语种：
中文
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Effects of cadmium on photosynthesis of Schima superba young plant detected by chlorophyll fluorescence
作者：
Chu, Jingjing;Zhu, Fan* ;Chen, Xiaoyong;Liang, Huizi;Wang, Renjie;...
期刊：
Environmental Science and Pollution Research ,2018年25(11):10679-10687 ISSN：0944-1344
通讯作者：
Zhu, Fan
作者机构：
[Huang, Xinhao; Liang, Huizi; Chu, Jingjing; Wang, Xuxu; Wang, Renjie; Zhu, Fan; Chen, Xiaoyong] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, Chicago, IL 60466 USA.
通讯机构：
[Zhu, Fan] C;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.
关键词：
Cadmium;PSI;PSII;CO2 assimilation;Chlorophyll fluorescence;Schima superba
摘要：
Contamination by heavy metals has become a serious environmental pollution issue today due to its potential threat to plant, wildlife, and human health. Photosynthesis, a process in which light energy is used to produce sugar and other organic compounds, is sensitive to heavy metals. In the present study, the response of photosynthetic process and carbon assimilation of Schima superba was investigated under cadmium (Cd) stress. Three Cd concentrations (0, 300, and 600mgkg−1) were used designated as control (CK), low Cd (L1), and high Cd treatment (L2) of plants. Results showed that photosystem II (PSII) acceptor and donor side electron transport were more easily blocked in treatment compared to control, and L2 have more significant changes than L1. A substantial decrease of 820 nm reflection curve absorption was observed both in L1 and L2 treatments. Special energy fluxes showed significant difference between the control group and the treated group, which indicated that low concentration Cd stress can cause decrease in quantum yield of PSII in plants studied. Non-stomatal factors resulted in a decrease in net photosynthetic rate and a decrease in photosystem activity. Our results suggested that Cd can damage structure and function of the photosynthesis of S. superba young plants. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
语种：
英文
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基于Lake模型的Pb胁迫对木荷和栾树幼树叶片叶绿素荧光参数的影响研究
作者：
黄鑫浩;朱凡;胡丰姣;梁惠子;王仁杰;...
期刊：
生态学报 ,2018年38(4):1284-1292 ISSN：1000-0933
通讯作者：
Zhu, F.
作者机构：
[黄鑫浩; 朱凡] 中南林业科技大学生命科学与技术学院,长沙410004;[黄鑫浩; 朱凡] 南方林业生态应用技术国家工程实验室,长沙410004;中南林业科技大学生命科学与技术学院,长沙,410004;南方林业生态应用技术国家工程实验室,长沙,410004;[梁惠子] 南方林业生态应用技术国家工程实验室
通讯机构：
Central-South University of Forestry and Technology, Changsha, China
关键词：
Lake模型;Pb胁迫;栾树;木荷;叶绿素荧光;诊断指标
摘要：
以阔叶树种木荷和栾树1年生幼树为对象,采用室内盆栽,通过配制3个不同浓度梯度的PbCl2溶液于盆栽土壤中(L1< L2<L3) ,对比研究Pb胁迫下两种幼树叶片叶绿素荧光参数的响应规律,运用Lake模型从能量平衡及分配的角度揭示不同浓度Pb胁迫下木荷和栾树光系统II运转状况,并为木本植物幼树耐Pb程度的快速诊断提供数据支撑。结果表明: 3个不同浓度的Pb处理下,两种供试幼树随着入射光强(PAR)的增大,除非调节性能量耗散(Y_(NO) )以外其他叶绿素荧光参数均随着PAR的变化而变化,相对电子传递速率(rETR)和可调节性能量耗散(Y_(NPQ) )呈上升趋势,而光系统II(PSII)量子效率(YII )和光化学猝灭(qL)呈下降趋势。同时,两种供试幼树的最大光能利用效率(F_v /F_m) 、rETR、Y_(II)、qL,随着Pb污染浓度的增加而降低,而YNPQ和Y_(NO)则随着Pb污染浓度的增加而升高。Pb对两种供试植物叶绿素荧光参数的抑制效果在最大净光合速率(Pn)上也有体现。本实验还得出,在L1浓度时木荷PSII反应中心的开放程度能保持在较高水准,随着污染浓度的增大,其光能转化能力弱于栾树。同时,栾树调节能量耗散的能力和对Pb胁迫的敏感程度均高于木荷,进一步说明了栾树对Pb的耐性高于木荷。综合分析后得出,Y_(NO)和Y_(NPQ)可作为植物Pb胁迫的评价指标。
语种：
中文
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Assessment of Koelreuteria paniculata Seedling for Phytroremediation of Pyrene-Contaminated Soils
作者：
Liu, Tingwei;Zhu, Fan* ;Yan, Wende;Chen, Xiaoyong;Huang, Xinhao;...
期刊：
WATER AIR AND SOIL POLLUTION ,2018年229(12) ISSN：0049-6979
通讯作者：
Zhu, Fan
作者机构：
[Huang, Xinhao; Kang, Hui; Yi, Xuankai; Yan, Wende; Wang, Xuxu; Liu, Tingwei; Wang, Renjie; Zhu, Fan] Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.;[Chen, Xiaoyong] Governors State Univ, Coll Arts & Sci, University Pk, IL USA.
通讯机构：
[Zhu, Fan] C;Cent South Univ Forestry & Technol, Coll Life Sci & Technol, Natl Engn Lab Appl Forest Ecol Technol Southern C, Changsha 410004, Hunan, Peoples R China.
关键词：
Phytroremediation;Pyrene;Rhizosphere;Soil;PAHs;Koelreuteria paniculata
摘要：
Phytoremediation is a cost-effective and environmentally friendly technology using plants for the cleanup of both inorganic and organic contaminated sites. In this study, a pot culture experiment has been conducted for 180 days in a greenhouse to examine the capability of Koelreuteria paniculata on pyrene (Pyr) dissipation in contaminated soil. Three treatments were employed and they were: (1) polluted soil with K. paniculata fine roots addition (T1), (2) polluted soil with planted seedlings (T2), and (3) polluted soil (C). Results showed Pyr concentration in soils was reduced by 21.4, 36.2, and 86.4% by natural losses, fine roots addition, and planted K. paniculata treatments, respectively, meaning plants substantially enhanced the dissipation of Pyr from soil. Cultivated K. paniculata seedlings significantly increased soil total nitrogen (TN), total organic carbon, dissolved organic carbon (DOC), and microbial biomass carbon, but not total phosphorus, when compared to the control. The removal efficiency of Pyr was lower in the adding of fine roots treatment than in the planted K. paniculata treatment. The principal component analysis indicated the promotional dissipation of Pyr in soil by planted K. paniculata was likely attributed to increased microbial quantity and activity, DOC, and TN content in the rhizosphere. Our results suggest that K. paniculata is a suitable plant species used in phytoremediation for Pyr-contaminated soils and the efficiency on the dissipation of Pyr is considerably enhanced using living plants than adding dead organic matters. The study provided a reference for the application of K. paniculata in the remediation of Pyr-contaminated soil. © 2018, Springer Nature Switzerland AG.
语种：
英文
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叶绿素荧光动力学技术在胁迫环境下的研究进展
作者：
胡丰姣;黄鑫浩;朱凡;邹志刚;刘俊文;...
期刊：
广西林业科学 ,2017年46(1):102-106 ISSN：1006-1126
作者机构：
中南林业科技大学生命科学与技术学院,湖南 长沙,410004;[刘俊文; 黄鑫浩; 朱凡; 邹志刚; 郑芬; 胡丰姣] 中南林业科技大学
关键词：
叶绿素荧光;光合系统II(PSII);环境胁迫
摘要：
叶绿素荧光动力学涵盖大量的光合作用过程信息.叶绿素荧光动力学技术作为一种快速、简便、精确且无损伤的新技术,在植物光合生理生态及胁迫生理生态等研究领域得到了较快的普及和广泛的应用.本研究介绍了快速叶绿素荧光诱导动力学曲线、叶绿素荧光分析相关参数、生物学意义以及该技术在胁迫环境中应用.
语种：
中文
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枫香人工林凋落物量及其N,P化学计量季节动态特征
作者：
陈掸;王光军;朱凡;赵月;梁小翠
期刊：
湖南师范大学自然科学学报 ,2016年39(2):16-22 ISSN：2096-5281
作者机构：
中南林业科技大学生命科学与技术学院,中国 长沙 410004;南方林业生态应用技术国家工程实验室,中国 长沙 410004;[朱凡; 梁小翠; 赵月; 陈掸; 王光军] 中南林业科技大学
关键词：
枫香;凋落物;氮磷质量比;生态化学计量特征;季节动态
摘要：
为了探索凋落物量及其N,P化学计量随着季节变化所呈现的规律性和相关关系,以湖南枫香（Liquidamba formosana Hance）人工林两年的凋落物为研究对象,开展凋落物量、各组分产量及其N,P质量分数和质量比生态化学计量特征的研究.结果表明：2012和2013年凋落物总量无显著差异性,分别为5 085.9±657.6 kg·hm^-2和4 935.7±609.7 kg·hm^-2.各组分凋落量从大到小排序为：叶、枝、花果、碎屑.叶的N,P质量分数之间,叶的w（P）与m（N）∶m（P）之间,枝的w（P）与m（N）∶m（P）之间以及碎屑的w（P）与m（N）∶m（P）之间均存在一定的相关性（P〈0.01）.枫香人工林凋落物及各组分产量及N,P质量分数和生态化学计量均存在显著的季节动态,表明季节变化对其均产生了一定的影响.而枫香林凋落物的N,P质量比值逐渐增加,表明P元素对该生态系统起到了限制作用.
语种：
中文
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加根条件下PAHs污染土壤理化性质的动态变化
作者：
赵文滔;朱凡;陈婷;洪湘琦;高吉权;...
期刊：
中南林业科技大学学报 ,2015年35(7):100-104 ISSN：1673-923X
作者机构：
中南林业科技大学生命科学与技术学院,湖南长沙,410004;[朱凡] 中南林业科技大学生命科学与技术学院,湖南长沙410004;[朱凡] 南方林业应用技术国家工程实验室,湖南长沙410004;南方林业应用技术国家工程实验室,湖南长沙,410004;[黄鑫浩; 高吉权; 洪湘琦; 胡丰姣] 南方林业应用技术国家工程实验室
关键词：
细根;土壤;理化性质;栾树
摘要：
多环芳烃（PAHs）是普遍存在于环境中的持久性有机污染物,土壤理化性质影响PAHs污染土壤植物修复的效率。以菲为多环芳烃（PAHs）代表物,人工添加栾树细根,设置3个处理:1加根处理:加根、加菲;2无根处理:不加根、加菲;3对照:不加根、不加菲,研究细根添加下菲污染土壤理化性质的动态变化。结果表明:（1）菲污染土壤p H略有上升,细根添加对污染土壤p H影响不明显;（2）菲污染显著增加了土壤有机质含量,细根添加进一步增加污染土壤有机质含量;（3）菲污染显著降低了土壤全N、P含量,细根添加增加了污染土壤N、P含量,但仍低于对照。
语种：
中文
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剔除和添加凋落物对樟树叶片生理特性的影响
作者：
陈婷;郑雨超;朱凡;宿少锋;洪湘琦;...
期刊：
生态科学 ,2015年34(1):53-60 ISSN：1008-8873
作者机构：
[陈婷; 朱凡; 洪湘琦; 赵文滔; 高吉权] 中南林业科技大学生命科学与技术学院;[郑雨超] 湖南省汝城县益将林场;[宿少锋] 海南林业科学研究所
关键词：
樟树;最大净光合速率;叶片水势;营养元素;加倍凋落物;剔除凋落物
摘要：
在湖南省森林植物园樟树林分,2010年4月设置了剔除凋落物、加倍凋落物和对照3个处理,1年后(2011年4月-10月)研究了凋落物处理下樟树叶片最大净光合速率、水势和营养元素(N、P、K、Mg)含量的变化特征,探讨了净光合速率与叶片水势和营养元素含量之间的关系。结果表明:剔除凋落物处理下樟树叶片最大净光合速率与对照相比下降了9.4%,加倍凋落物处理下叶片最大净光合速率与对照相比上升了12.3%;剔除和加倍凋落物处理下叶片水势小于对照;剔除和加倍凋落物处理下4种营养元素均有不同程度地下降和上升。主成分分析结果表明,凋落物的剔除和加倍处理对最大净光合速率产生影响较大,其中剔除凋落物处理对叶片水势和营养元素的影响较大。叶片最大净光合速率与叶片P、Mg元素间存在显著地指数关系和二元回归关系(P<0.05),叶片水势和土壤湿度之间存在明显的二元回归关系(P<0.05)。这证明了凋落物输入变化对樟树叶片生理特性有一定的影响。
语种：
中文
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施氮对樟树林土壤微生物碳源代谢的影响
作者：
朱凡;李天平;郁培义;宿少锋;洪湘琦;...
期刊：
林业科学 ,2014年50(8):82-89 ISSN：1001-7488
作者机构：
[朱凡; 李天平; 洪湘琦; 陈婷] 中南林业科技大学生命科学与技术学院;[郁培义] 三亚市林业科学研究所;[宿少锋] 海南林业科学研究所
关键词：
土壤微生物;施氮;碳源利用;多样性;樟树林
摘要：
以亚热带地区樟树林为研究对象,设置3个氮添加水平,即0(对照)、5(低氮)和15 g·m~(-2)(高氮),采用BIOLOG—AN,FF,Gen Ⅲ和YT 4种微孔板,对施氮1年后土壤微生物群落碳源利用进行研究。结果表明:1)施氮后土壤微生物群落代谢活性均不同程度地降低,而且氮添加水平越高,土壤微生物代谢活性越弱;2)施氮可影响微生物群落多样性,施氮后,4种微生物群落丰富度增强,均匀度降低,厌氧菌、真菌和革兰氏菌的优势度降低;3)碳源利用分析表明,施氮后,糖类虽然仍是4种微生物群落主要利用的碳源,却相应地提高了其他几类碳源的利用程度,土壤真菌和厌氧菌的碳源利用受氮添加影响较大,而革兰氏菌和酵母菌碳源利用受氮添加影响相对较小。
语种：
中文
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生态学专业本科人才培养目标和模式探讨
作者：
王光军;杨相琴;项文化;闫文德;朱凡;...
期刊：
中南林业科技大学学报(社会科学版) ,2014年8(1):167-171 ISSN：1673-9272
作者机构：
中南林业科技大学生命科学与技术学院 湖南长沙410004
关键词：
生态学专业;本科人才;培养目标;培养模式
摘要：
针对生态学专业本科人才培养中存在的问题,我们以中南林业科技大学生态学本科专业为例,从理论和实践两个层面对生态学专业本科人才培养的目标和规格、培养模式进行探讨。认为人才培养的基本思路是实施通识教育即"‘通才’+‘专才’"的教育模式,强化学生的社会适应性和就业针对性。在此基础上,依据社会需求、学科发展、办学定位、办学条件和传统特色等确立自己相对稳定的培养规格,探索基础研究型、管理决策型、技术应用型等三类生态学专业人才的不同培养方案,实现培养模式多样化,突出培养特色。
语种：
中文
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生态学本科专业实践教学模式的改革与实践
作者：
王光军;杨相琴;项文化;朱凡;闫文德;...
期刊：
中南林业科技大学学报(社会科学版) ,2013年7(5):206-210 ISSN：1673-9272
作者机构：
中南林业科技大学生命科学与技术学院,湖南长沙410004
关键词：
生态学专业;本科教育;实践模式
摘要：
实践教学是生态学专业实施人才培养的必然选择.经过多年的研究与实践,中南林业科技大学依据本校生态学科特色、充分利用区域和行业优势资源,打造运转高效、良性循环的实验实习新平台,建成了与理论教学体系有机结合而又相对独立,课内外衔接、校内外联合、产学研结合、融专业教育和综合教育为一体,立体化、多层次的开放式实践教学模式,较好地培养了学生的创新精神、研究能力和综合运用生态技术解决实际问题的能力.
语种：
中文
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长沙市4种蔬菜中As和Hg的污染分析与评价
作者：
王素燕;朱凡;梁小翠
期刊：
食品与机械 ,2013年29(4):166-169 ISSN：1003-5788
作者机构：
中南林业科技大学南方林业生态应用技术国家工程实验室
关键词：
微波消解;原子荧光光谱法;蔬菜;砷;汞;污染
摘要：
为了了解长沙市蔬菜中As和Hg的污染状况,对样品进行微波消解处理后,以原子荧光光谱法测定蔬菜中As和Hg的含量,并采用单因子污染指数和综合污染指数法对蔬菜中As和Hg的污染状况进行分析评价。结果表明,长沙市宁乡县蔬菜基地生产的蔬菜其综合污染程度为安全级别,具备发展无公害蔬菜生产基地条件。另外3个来自长沙市香樟路、红星和高桥蔬菜批发市场的叶类蔬菜中As和Hg污染程度已达警戒级和轻度污染,这些蔬菜会影响人们的身体健康。
语种：
中文
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