作者： 杜林森;唐美铃;祝贞科;魏亮;魏晓梦;...

期刊： 环境科学,2018年39(8):3901-3909 ISSN：0250-3301

通讯作者： Zhu, Zhen-Ke(zhuzhenke@isa.ac.cn)

作者机构： [杜林森; 邹冬生] College of Bioscience and Biotechnology, Hunan Agriculture University, Changsha;410128, China;[唐美铃; 祝贞科; 魏亮; 魏晓梦; 周萍; 葛体达; 王久荣; 吴金水] Key Laboratory of Subtropical Agriculture Ecology, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha;410125, China;College of Life Science and Engineering, Central South University of Forestry and Technology, Changsha

关键词： 水稻土;长期施肥;土层;酶活性;碳氮水解酶;米氏方程

摘要： 与稻田土壤碳周转密切相关的酶活性是评价土壤肥力和肥料管理的重要指标.本研究选取秸秆还田(ST) 、化肥(NPK)和不施肥(CK)的长期定位试验田,以10 cm的间距分段采集土壤剖面0 ~ 40 cm范围内的新鲜土样,利用96微孔酶标板荧光分析法,测定参与土壤碳氮转化过程关键酶β-1,4-葡萄糖苷酶(BG)和β-1,4 -N-乙酰氨基葡萄糖苷酶(NAG)活性,探讨不同施肥措施对不同深层土壤酶活的影响.结果表明,相比不施肥的土壤,施用化肥和秸秆土壤的BG酶活性分别提高了35% ~ 118%和55% ~ 342%; NAG酶活性分别提高了9% ~ 30%和102% ~ 484%.同时,随着土层深度的增加,土壤酶活性逐渐降低,0 ~ 20 cm深层土壤酶活性显著高于20 ~ 40 cm深层土壤.在不同施肥措施中秸秆还田可高程度影响稻田深层土壤. RDA分析表明土壤碳氮含量主要与0 ~ 20 cm的土壤酶活性有显著的正相关关系,与20 ~ 40 cm的土壤酶活性呈负相关关系.综上所述,随着土壤深度增加土壤微生物量和土壤酶活性显著降低.长期施肥显著提高了不同深层土壤生物量和土壤酶活性,其中秸秆还田作用尤为突出.因此,合理的秸杆还田有利于改善稻田深层土壤肥力,优化农田土壤养分循环,为作物生长提供良好的土壤环境.

语种： 中文

作者： 陈法霖;张凯;王芸;吴爱平;李有志;...

期刊： 生态学报,2018年38(22):8070-8079 ISSN：1000-0933

通讯作者： Zheng, H.

作者机构： [陈法霖] 湖南农业大学生物科学技术学院洞庭湖区农村生态系统健康湖南省重点实验室,长沙410128;[陈法霖] 中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085;新疆农业大学草业与环境科学学院,乌鲁木齐,830052;山东省水土保持与环境保育研究所,临沂大学资源与环境学院,临沂276005;[邹冬生; 李有志; 吴爱平] 湖南农业大学生物科学技术学院洞庭湖区农村生态系统健康湖南省重点实验室,长沙,410128

关键词： 桉树人工林;天然次生林;土壤微生物群落

摘要： 由于桉树对原生生态系统具有潜在的破坏性影响,随着桉树人工林面积的不断扩大,桉树种植对森林生态系统的影响越来越受到社会的关注。围绕引进种桉树造林对土壤微生物群落的影响,应用成对试验设计,采用磷脂脂肪酸(PLFA)和BIOLOG微平板培养等技术手段探讨土壤微生物群落结构和功能如何响应桉树人工林取代天然次生林这一变化,主要结果为:桉树人工林取代天然次生林导致:(1)土壤微生物生物量减少,包括:生物量碳、氮和磷脂脂肪酸丰度显著下降;(2)反映土壤微生物群落生理胁迫状况的指标:饱和直链脂肪酸/单不饱和脂肪酸、革兰氏阳性菌/革兰氏阴性菌、支链异构/反异构脂肪酸以及cy19:0/18:1ω7c的比值显著增加;(3)土壤微生物群落碳代谢强度和多样性显著降低;(4)桉树人工林取代天然次生林导致土壤微生物群落结构变化和功能退化的主要环境因素包括:植物物种丰富度和覆盖度的降低以及土壤资源(碳、氮和水分)可获得性的降低。综上所述,引进种桉树人工林取代天然次生林降低了植物物种丰富度和覆盖度以及土壤资源的可获得性,进而显著增强了土壤微生物群落生理胁迫、显著降低了土壤微生物群落功能。

语种： 中文

作者： Fu, Hui*;Lou, Qian;Dai, Taotao;Yuan, Guixiang;Huang, Zhenrong;...

期刊： Ecohydrology,2018年11(4):e1950- ISSN：1936-0584

通讯作者： Fu, Hui

作者机构： [Ge, Dabing; Liu, Qiaolin; Zou, Dongsheng; Fu, Hui; Yuan, Guixiang; Wu, Aiping] Hunan Agr Univ, Coll Biosci & Biotechnol, Inst Ecol, Ecol Dept, Changsha 410128, Hunan, Peoples R China.;[Lou, Qian; Dai, Taotao; Fu, Hui; Yuan, Guixiang; Guo, Chunjing; Hu, Jianmin; Zhong, Jiayou] Jiangxi Inst Water Sci, Jiangxi Prov Key Lab Water Resources & Environm P, Beijing East Rd 1038, Nanchang 330029, Jiangxi, Peoples R China.;[Fang, Shaowen] Hydrol Bur Jiangxi Prov, Nanchang 330059, Jiangxi, Peoples R China.;[Li, Wei] Nanchang Inst Technol, Res Inst Ecol & Environm Sci, Nanchang 330099, Jiangxi, Peoples R China.;[Huang, Zhenrong] Chinese Acad Sci, Inst Subtrop Agr, Changsha Res Stn Agr & Environm Monitoring, Key Lab Agroecol Proc Subtrop Reg, Beijing 410125, Hunan, Peoples R China.

通讯机构： [Fu, Hui] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Inst Ecol, Ecol Dept, Changsha 410128, Hunan, Peoples R China.

关键词： above-ground biomass;complementary effects;functional diversity;hydrological gradients;Poyang Lake;selection effects

摘要： Functional trait approaches have greatly improved the mechanistic understanding of the impacts of biodiversity in ecosystem. We evaluated how hydrological gradients (i.e., soil water content and elevation) affected the taxonomic diversity, functional identity, and functional diversity and assessed how changes in these measures of diversity ultimately drove variations in above-ground biomass (AGB). Results showed that a combination of hydrological gradients and functional trait composition (i.e., the community weighted means, the single-trait functional diversity and the multiple-trait functional diversity) better explained variations (40.8%) of AGB. No significant relationships between taxonomic diversity and AGB were observed. The dominant species became taller with thicker stem, and co-occurring species showed greater divergent distribution of stem diameter towards higher soil water content. As elevation increased, the dominant plant had thinner leaves with later onset of flowering and longer flowering duration, and co-occurring species showed less divergent distribution of lamina thickness and leaf dry-mass content. Our results highlighted that the positive biodiversity–ecosystem functioning relations were largely attributed to the co-operations of selection and complementary effects, as evidences showed that the dominant trait values (i.e., community weighted mean of shoot height) and trait diversity (i.e., functional evenness) improved biomass production of wetland plants. Copyright © 2018 John Wiley & Sons, Ltd.

语种： 英文

作者： Yao, Xin;Ma, Fengfeng;Li, Youzhi*;Ding, Xiaohui;Zou, Dongsheng;...

期刊： Environmental Science and Pollution Research,2018年25(8):8002-8011 ISSN：0944-1344

通讯作者： Li, Youzhi

作者机构： [Li, Youzhi; Deng, Jiajun; Yao, Xin; Bian, Hualin; Ding, Xiaohui; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Ma, Fengfeng; Niu, Yandong] Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China.;[Niu, Yandong] Hunan Dongting Lake Wetland Ecosyst Res Stn, Yueyang 414000, Peoples R China.

通讯机构： [Li, Youzhi] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

关键词： Salix triandroides;Cadmium concentration;Flooding;Phytoextraction;Photosynthesis;Bioaccumulation coefficient;Translocation factor

摘要： The growth performance of Salix triandroides cuttings at three water cadmium (Cd) concentrations (0, 20, and 40 mg L−1) and three water levels (− 40 cm, water level 40 cm below the soil surface; 0 cm, water level even with the soil surface; and 40 cm, water level 40 cm above soil surface) was investigated to evaluate its potential in phytoextraction strategies. Compared to cuttings in the − 40 or 0 cm water levels, cuttings in the 40 cm water level showed significantly lower biomass, height, and adventitious root length and significantly fewer leaves and adventitious roots. However, these growth and morphological parameters were not different among the three water Cd concentrations. Water level decreased stomatal conduction and transpiration rate but showed no significant effects on chlorophyll concentration or photosynthetic rate. Chlorophyll concentration and stomatal conductance were higher at 40 mg L−1 Cd treatment than at 0 or 20 mg L−1 Cd treatment; yet, photosynthetic rate and transpiration rate were not different. Cd concentration in the leaves and stems increased as the water level increased, but the highest Cd concentration in the roots occurred in the 0 cm water level. As water Cd concentration increased, Cd concentration in the leaves, stems, and roots increased in all three water levels, except in stems in the − 40 cm water level. Under Cd stress, cuttings in the − 40 or 0 cm water levels were characterized by a higher bioaccumulation coefficient, but a lower translocation factor, than those in the 40 cm water level. However, the bioaccumulation coefficient increased with increasing water Cd concentration in all three water levels, as did the translocation factor in the 40 cm water level. The tolerance index for the cuttings was the same among all water levels and water Cd concentrations. The results clearly indicated that the low water level increased plant growth and Cd accumulation in underground parts, while the high water level decreased plant growth but increased Cd accumulation in aboveground parts. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.

语种： 英文

作者： 王叶;张国林;阳树英;邹冬生;肖润林;...

期刊： 应用生态学报,2018年29(11):3596-3606 ISSN：1001-9332

通讯作者： Yang, S.-Y.

作者机构： [王叶; 邹冬生; 王浩] 湖南农业大学生物科学技术学院,长沙410128;[王叶; 邹冬生; 王浩] 洞庭湖农村生态系统健康湖南省重点实验室,长沙410128;中国科学院亚热带农业生态研究所,长沙410125;湖南农业大学生物科学技术学院,长沙,410128;中国科学院亚热带农业生态研究所,长沙,410125

通讯机构： [Yang, S.-Y.] C;College of Bioscience and Biotechnology, China

关键词： 生境;间种;茶叶品质;产量;光合生理机制

摘要： 为了探明茶叶产量和品质形成的特殊生境及其光合生理机制,在中国科学院长沙农业环境观测站利用3种间种乔木模式(S_1:桂花树-茶树,S_2:乐昌含笑-茶树,S_3:桂花树-乐昌含笑-茶树)与纯茶园(CK)建成了4种典型生境,比较研究了这些特殊生境下茶叶产量与品质形成的光合生理生态特性.结果表明:生境S_1、S_2、S_3显著降低了茶树叶片温度(TL) 、光合有效辐射通量(PAR),叶片净光合速率(P_n ) 、蒸腾速率(T_r )和气孔导度(g_s )的日均值,显著降低了茶叶茶多酚总含量.生境S_1、S_2、S_3显著提高了叶室相对湿度(RHS) 、茶叶氨基酸总含量,显著提高了茶叶产量和品质,并且S_3>S_1>S_2>CK,其中生境S_1和S_3的茶叶适宜加工成高档绿茶和名优绿茶.综合各指标,生境S_3是茶园优质高产的理想间种模式.

语种： 中文

作者： 陈希;周脚根;李希;李裕元;邹冬生;...

期刊： 农业现代化研究,2017年38(2):291-297 ISSN：1000-0275

作者机构： [陈希] 湖南农业大学生物科学技术学院,湖南长沙 ,410128;[陈希] 中国科学院亚热带农业生态研究所,湖南长沙, 410125;[吴金水; 李希; 李裕元; 周脚根; 张满意] 中国科学院亚热带农业生态研究所;[邹冬生] 湖南农业大学

关键词： 养猪业;养猪污染物;排放负荷;时空格局;洞庭湖生态经济区

摘要： 养殖污染时空格局研究对于有的放矢地开展污染综合治理与促进养殖业的可持续发展具有重要意义。以洞庭湖生态经济区湖南省部分为研究区域,利用2000-2014年农业统计数据,采用污染排放系数法和空间格局分析技术,系统分析区内养猪业主要污染物化学需氧量(COD)、总氮(TN)、总磷(TP)排放的年际动态及其空间格局,探讨污染负荷形成的原因。结果表明,近15 a 来洞庭湖地区养猪规模与污染排放量总体呈现先增后略减然后再持续增加的变化态势,2007年达到最高峰。研究区养猪业存栏规模从2000年的1 469.4万头上升到2014年的2 010.2万头,COD、TN 和TP 排放量分别由2000年的112.99、11.75与1.10万t/a 增加到2014年的154.56、16.07与1.51万t/a。从空间格局来看,养猪污染负荷最大的县(市)主要为洞庭湖西部的常德市区、东南部的汨罗市和望城区,且高污染负荷区呈逐年扩大的态势。洞庭湖生态经济区养猪业的空间格局与当地人口密度、生产习惯、政策及市场导向密切相关。因此,从政策层面推进健康养殖和发展生态循环农业是洞庭湖生态经济区养猪污染防控的关键。

语种： 中文

作者： Yang, Ning;Zou, Dongsheng*;Yang, Manyuan;Fu, Meiyun;Lin, Zhonggui

期刊： BANGLADESH JOURNAL OF BOTANY,2017年46(1):147-153 ISSN：0253-5416

通讯作者： Zou, Dongsheng

作者机构： [Fu, Meiyun; Lin, Zhonggui; Zou, Dongsheng; Yang, Manyuan; Yang, Ning] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Fu, Meiyun; Lin, Zhonggui; Yang, Manyuan; Yang, Ning] Hunan Environm Biol Polytech Coll, Coll Landscape Architecture, Hengyang 421005, Peoples R China.

通讯机构： [Zou, Dongsheng] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

关键词： Soil quality;Evaluation;Purple soil

摘要： To investigate the effect of vegetation recovery on soil quality at hill slopes with purple soil in Hengyang, China, 4 typical sample plots with vegetation recovery chronosequencc, i.e. grassplot (GT) (2 a). frutex and grassplot (FG) (5-8 a), frutex (FX) (20-25 a). arbor and frutex (AF) (approximately equal to 50 a). with basically similar site conditions, were selected as test objects. The comprehensive index of soil quality was applied to investigate the changes of soil quality in the process of vegetation recovery. As vegetation recovery proceeded from GT to FG, FX and AF, soil quality improved significantly (p < 0.05). As soil depth increased, the degree of soil quality improvement decreased significantly (p < 0.05). The comprehensive indexes of soil quality in various stages of vegetation recovery showed a decreasing pattern: AF (0.527), FX (0.519), FG (0.483), GT (0.481). All the results indicated vegetation recovery significantly improved the soil quality of hillslopes with purple soil in Hengyang of Hunan province, China.

语种： 英文

作者： Zhang, Guolin;Fu, Haiping;Zou, Dongsheng*;Xiao, Runlin;Liu, Jun;...

期刊： International Journal of Electrochemical Science,2017年12(12):11465-11472 ISSN：1452-3981

通讯作者： Zou, Dongsheng

作者机构： [Zhang, Guolin; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Fu, Haiping] Hunan Acad Agr Sci, Res Inst, Changsha 410125, Hunan, Peoples R China.;[Zhang, Guolin; Xiao, Runlin] Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China.;[Li, Shaojing; Liu, Jun] Qingdao Agr Univ, Qingdao Engn Res Ctr Rural Environm, Qingdao 266109, Peoples R China.

通讯机构： [Zou, Dongsheng] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

关键词： Caffeine;Electrochemical sensor;Graphene;Polydopamine;Children asthmatic attack

摘要： A polydopamine-gold nanocomposite (PDA/AuNPs)-based caffeine sensor with high sensitivity was fabricated. The electrochemical performance of the caffeine sensor was characterized in various electrolyte solutions, including sodium perchlorate, phosphate buffer saline, and choline chloride containing oxalic acid. The influence of interference agents, normally present in caffeine-containing samples, on caffeine detection was also studied. The PDA/AuNPs/GCE-based sensor showed excellent performance in the determination of caffeine in tea samples.

语种： 英文

作者： Li, Shaojing;Zou, Dongsheng*;Wang, Kairong

期刊： Agro Food Industry Hi-Tech,2017年28(3):927-930 ISSN：1722-6996

通讯作者： Zou, Dongsheng

作者机构： [Li, Shaojing; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.;[Li, Shaojing] Qingdao Agr Univ, Coll Sci & Informat, Qingdao, Shandong, Peoples R China.;[Wang, Kairong] Qingdao Agr Univ, Coll Resources & Environm, Qingdao, Shandong, Peoples R China.

通讯机构： [Zou, Dongsheng] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.

关键词： Rice planting area;Rice production;Rice total output;Shandong Province

摘要： In this paper we will analyze the changes and influence factors in rice production in Shandong Province in the past 15 years by the research methods of mathematical statistics and regression analysis with the data of rice planting area, yield and total yield during 2000 to 2014 and explore the influence of accelerating industrialization and urbanization on it. The results show that:The overall planting area in Shandong Province decreased from 171573 hm2 in 2000 to 152634 hm2102385 hm2 and 105771 hm2 of 2002, 2003 and 2014 an overall decline of 38.4%.The average yield in 2000 is 7542kg/hm2; There was a little fall in 2002 and 2003; It has maintained steady rise from 2004 to 2011 and had an overall increase of 9 percentage points. The rice total output in the three area decreased from 1278094t to 855101t, about 33%; The sharp decline in planting area resulted in a significant decline in rice production from 2000 to 2003 and the total output in 2003 was only 714303t.The main reason for the decline of rice production in Shandong is the decrease of rice planting area. Therefore, the keys to ensure stable rice production in Shandong are to stabilize rice acreage and to improve yield by strengthening the construction of agricultural infrastructure, earnestly implementing the protection of arable land system, improving agricultural subsidies and expanding agricultural insurance coverage.

语种： 英文

作者： Wang, Haiping;Liu, Feng*;Luo, Pei;Li, Zihan;Zheng, Liguo;...

期刊： Bulletin of Environmental Contamination and Toxicology,2017年98(4):556-561 ISSN：0007-4861

通讯作者： Liu, Feng;Wang, Hua

作者机构： [Luo, Pei; Wu, Jinshui; Wang, Haiping; Liu, Feng] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agro ecol Processes Subtrop Regions, Changsha Res Stn Agr Environm Monitoring, Changsha 410125, Hunan, Peoples R China.;[Zheng, Liguo; Wang, Haiping] Changsha Environm Protect Coll, Changsha 410007, Hunan, Peoples R China.;[Li, Zihan; Wang, Hua; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

通讯机构： [Liu, Feng] C;[Wang, Hua] H;Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agro ecol Processes Subtrop Regions, Changsha Res Stn Agr Environm Monitoring, Changsha 410125, Hunan, Peoples R China.;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

关键词： Allelopathy;Myriophyllum aquaticum;Cyanobacteria;Allelochemicals;Membrane lipid peroxidation

摘要： Allelopathy has been proposed as a sustainable means to control undesired algal growth and to reduce blooms threatening freshwater systems worldwide. In this study, the allelopathic effects of Myriophyllum aquaticum and its exudate on two typical bloom-forming cyanobacteria, Microcystis aeruginosa and Anabaena flos-aquae, were investigated under laboratory conditions. The growth of the cyanobacteria was strongly inhibited by live M. aquaticum while the primary addition of M. Aquaticum exudates had a significant inhibitory effect on the growth of M. aeruginosa but not A. flos-aquae. The results suggested that the persistent release of allelochemicals from live M. aquaticum was needed to effectively constrain the growth of A. flos-aquae. Analysis of cyanobacterial physiological indexes indicated that M. aquaticum produced an inhibitory effect on SOD enzyme activity of A. flos-aquae, while it affected membrane lipid peroxidation in M. aeruginosa. The results show the potential of M. aquaticum to mitigate cyanobacterial blooms in coexistence systems. © 2017, Springer Science+Business Media New York.

语种： 英文

作者： Ding, Xiaohui;Zou, Jianfeng;Li, Youzhi*;Yao, Xin;Zou, Dongsheng;...

期刊： Aquatic Ecology,2017年51(2):321-330 ISSN：1386-2588

通讯作者： Li, Youzhi

作者机构： [Li, Youzhi; Ge, Zixuan; Deng, Jiajun; Yao, Xin; Bian, Hualin; Ding, Xiaohui; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.;[Zou, Jianfeng] Hunan Agr Univ, Sci & Technol Innovat Platform, Changsha 410128, Hunan, Peoples R China.;[Zhang, Canming; Yang, Nan] Hunan Water Resources Res & Dev Ctr, Changsha 410013, Hunan, Peoples R China.;[Niu, Yandong] Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China.

通讯机构： [Li, Youzhi] H;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

关键词： Salix triandroides;Seasonal flooding;Morphological adaptation;Photosynthetic response;Anatomical adjustment;Dongting Lake wetlands

摘要： A simulated flooding experiment was conducted to evaluate the effects of seasonal flooding on the plant Salix triandroides from the Dongting Lake wetlands in China. The morphology, photosynthetic activity, and anatomy of cuttings in three water conditions (−40 cm, water level 40 cm below soil surface; 0 cm, water level 0 cm at the soil surface; and 40 cm, water level 40 cm above soil surface) and two lights conditions (full sunlight and 10% sunlight) were measured. Plants had a higher survival ratio and biomass accumulation in full sunlight than in 10% sunlight when the water level was −40 and 0 cm, but there was no difference between these parameters in cuttings grown under the two light conditions in the 40 cm water treatment. In full sunlight, a lower survival ratio and reduced biomass were observed with increasing water level. The same trend was also seen for survival ratio in 10% sunlight. However, there was no difference in biomass among the three water levels in 10% sunlight, except for leaf weight. Branch height, leaf number, adventitious root length, and adventitious root number were different in the three water levels and two light conditions. In water levels of −40 and 0 cm, plants had lower chlorophyll contents in full sunlight than in 10% sunlight. In full sunlight, there was no difference in chlorophyll content between the water levels, while in 10% sunlight, lower chlorophyll content was observed in −40 cm than in 0 cm water. Photosynthetic rate, stomatal conductance, and transpiration rate decreased, but water-use efficiency increased in reduced light at all three water levels. Additionally, plants had higher porosity in 40 cm water than in −40 and 0 cm conditions. Based on the reduced plant growth in the 10% sunlight condition and decreased survival in the 40 cm water level, we conclude that low light significantly decreased plant acclimation to incomplete submergence and that high water levels induced dormancy in the cuttings. Therefore, the height of cuttings used for forestation or reforestation is an important consideration for mitigating the negative effects of seasonal flooding on the survival and growth of S. triandroides in Dongting Lake wetlands.

语种： 英文

作者： 江南;邹冬生;肖和艾;李明德;刘琼峰;...

期刊： 中国农学通报,2017年33(14):147-152 ISSN：1000-6850

作者机构： 湖南农业大学生物科学技术学院;[肖和艾; 江南] 中国科学院亚热带农业生态研究所;[李明德; 谷雨; 刘琼峰] 湖南省农业科学院土壤肥料研究所;[邹冬生] 湖南农业大学

关键词： 牧草;肉牛;有机肥;循环农业模式;效益分析

摘要： 笔者以位于湖南省长沙县金井镇的循环农业研究基地为例,对＂单一养牛＂、＂种草养牛＂和＂种草养牛产肥＂3种模式的比较效益进行了分析。结果表明：与＂单一养牛＂模式比较,＂种草养牛产肥＂模式的总产值、净产值和利润分别提高18.3%、76.7%和88.4%。从成本和投资两方面分析结果表明,无论是成本利用率与利用效率,以及投资利用率与投资效果,均呈现＂种草养牛产肥＂模式最好,＂种草养牛＂模式其次,＂单一养牛＂模式最差。但单纯从劳动投入的角度分析,＂种草养牛产肥＂和＂种草养牛＂模式的劳动成本占总成本的26.8%和25.9%,较＂单一养牛＂模式高57.7%和56.2%,说明＂种草养牛产肥＂和＂种草养牛＂模式的人工投入成本较高,需加快机械化技术应用。与＂单一养牛＂模式相比,＂种草养牛产肥＂模式的总产值和净产值提高1.2倍和4.3倍,扣除劳动成本后,＂种草养牛产肥＂模式的纯收益分别比＂单一养牛＂和＂种草养牛＂模式提高8.60倍和1.16倍。阐明＂种草养牛产肥＂模式不仅可有效地防止牛场废弃物对环境的污染,而且具有更好的经济效益,值得大力推广应用。

语种： 中文

作者： Yang, Ning;Zou, Dongsheng*;Yang, Manyuan;Fu, Meiyun;Lin, Zhonggui

期刊： BANGLADESH JOURNAL OF BOTANY,2017年46(4):1301-1307 ISSN：0253-5416

通讯作者： Zou, Dongsheng

作者机构： [Fu, Meiyun; Lin, Zhonggui; Zou, Dongsheng; Yang, Manyuan; Yang, Ning] Hunan Environm Biol Polytech Coll, Coll Landscape Architecture, Hengyang 421005, Peoples R China.;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Hunan, Peoples R China.

通讯机构： [Zou, Dongsheng] H;Hunan Environm Biol Polytech Coll, Coll Landscape Architecture, Hengyang 421005, Peoples R China.

关键词： Biological properties;Enzyme activity;Purplish soil;Vegetation restoration

摘要： Spatial sequence, instead of time sequence, is used to analyse the effect of vegetation restoration in purplish soil hilly land of Hengyang of Hunan Province on soil microbial characteristics and enzyme activities and analyse their relationship. Results show (1) with the progress of vegetation restoration, soil dissolved carbon, alkali-hydrolysable nitrogen and rapidly available phosphorus, microorganism quantity, carbon-nitrogen content, respiration rate and activities of urease, invertase and catalase are significantly increased (p < 0.05). (2) Compared with the early stage (I), soil respiration rates in the middle and early stage (II), the middle and late stage (III) and the late stage (IV) increase significantly, particularly in the middle and early stage (II) (p < 0.05). Moreover, compared with the initial stage (I), the differences in soil microbial biomass carbon and nitrogen ratio and metabolic entropy in the middle and early stage (II), the middle and late stage (III) and the late stage (IV) are not significant (p > 0.05). (3) Correlation analysis shows that soluble carbon, alkali-hydrolysable nitrogen and rapidly available phosphorus are pairwise correlated. These soil indicators have good correlation with microbial biomass carbon and nitrogen content as well as urease, invertase and catalase activities (p < 0.001). Findings show that vegetation restoration can significantly improve soil biological properties.

语种： 英文

作者： 张红云;邹冬生;朱战强

期刊： 湖南生态科学学报,2017年4(1):13-19 ISSN：2095-7300

作者机构： [张红云] 湖南农业大学 生物科学技术学院,湖南 长沙 410128;[张红云] 中山大学 地理科学与规划学院 综合地理信息研究中心,广东 广州 510275;湖南农业大学 生物科学技术学院,湖南 长沙,410128;中山大学 地理科学与规划学院 综合地理信息研究中心,广东 广州,510275;[邹冬生] 湖南农业大学

关键词： 城市绿道;使用;状态;广州

摘要： 以广州市滨江绿道为研究对象,采用实地调研的方法,对城市绿道使用者来源构成,及其使用绿道的目的、方式、频次和时间进行了定量分析,结果表明,城市绿道使用者主要是就近常住居民,其使用目的主要是休闲、健身和通勤;使用方式多为散步、跑步、骑自行车;使用频次多为每天1次,其中从清晨到下午18∶00时,绿道主要承担通道作用,而晚上19∶00~21∶00时期间,发挥的更多的是休闲功能;夜晚居民更有时间前往绿道进行散步、跑步等休闲健身活动.

语种： 中文

作者： 黄也;阳树英;邹冬生

期刊： 湖南生态科学学报,2017年4(1):7-12 ISSN：2095-7300

作者机构： 湖南农业大学 生物科学技术学院,湖南 长沙,410128;[阳树英; 邹冬生; 黄也] 湖南农业大学

关键词： 生态农场;指标体系;评价模型

摘要： 为了客观公正地评价生态农场的发展状况,运用层次分析法,结合生态农场实际情况,从本地资源、经济效益、社会效益和生态环境效益角度出发,提出了生态农场评价指标体系构建原则和方法,并建立生态农场综合水平评价定性与定量相结合的指标体系,进而运用量化的评价指标体系和层次分析评价法,对湖南省辰溪县橘海生态农场进行了综合评价实证.

语种： 中文

作者： Gao, Ye;Xie, Yong-hong*;Zou, Dong-sheng

期刊： Hydrological Sciences Journal,2017年62(10):1583-1590 ISSN：0262-6667

通讯作者： Xie, Yong-hong

作者机构： [Gao, Ye; Zou, Dong-sheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.;[Gao, Ye] Dept Hydrol, Changsha, Hunan, Peoples R China.;[Gao, Ye] Water Resources Survey Bur Hunan Prov, Changsha, Hunan, Peoples R China.;[Xie, Yong-hong] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.;[Xie, Yong-hong] Chinese Acad Sci, Dongting Lake Stn Wetland Ecosyst Observat & Res, Inst Subtrop Agr, Yueyang, Peoples R China.

通讯机构： [Xie, Yong-hong] C;Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.;Chinese Acad Sci, Dongting Lake Stn Wetland Ecosyst Observat & Res, Inst Subtrop Agr, Yueyang, Peoples R China.

关键词： Dongting Lake;Three Gorges Dam;artificial neural network;multi-layer perceptron

摘要： Since a river system is a unidirectional network, the upstream influencing factors often interfere with those downstream. We quantify the effects of the TGD on the sediment exchange processes between the Yangtze River and Dongting Lake. Based on yearly sediment load data from 1981 to 2008, two multi-layer perceptron (MLP) models were constructed to predict the potential sedimentation in Dongting Lake without implementation of the TGD. The sediment discharge at Yichang station decreased from 622.5 to 61.1 Mt/year between 1981&ndash;1985 and 2003&ndash;2008, while the sedimentation in Dongting Lake reduced from 127.3 to 6.6 Mt/year. The MLP models indicate that only 27.9% of the decreased sediment load at Yichang station and 16.9% of that in Dongting Lake is caused by the TGD, while the rest is caused mostly by other upstream climate variations and anthropogenic impacts. EDITOR A. Castellarin;ASSOCIATE EDITORN. Ilich. &copy;2017 IAHS.

语种： 英文

作者： 高耶;谢永宏;邹冬生

期刊： 泥沙研究,2017年42(2):74-80 ISSN：0468-155X

作者机构： [高耶] 湖南农业大学生物科学技术学院,湖南长沙410128;[高耶] 湖南省水文水资源勘测局,湖南长沙410007;中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室,湖南长沙410125;中国科学院亚热带农业生态研究所洞庭湖湿地生态系统观测研究站,湖南岳阳414018;湖南农业大学生物科学技术学院,湖南长沙,410128

关键词： 河流生态系统;采砂;生态响应;管理对策

摘要： 砂石是河流生态系统的重要组成部分,是河流生物附着生存的物理基底和重要生境要素。为满足修建公路、桥梁、房地产开发等多方面的需求,河道采砂的强度和规模与日俱增。大规模的河道采砂会引起一系列严重的生态环境后果,包括河床下切导致河势失稳,河道水位和漫滩洪水发生频率下降,地表径流和地下水分配格局发生变化,河流生境和生物多样性下降,威胁着河流生态系统结构和功能的完整性,使得系统稳定性和抵抗力下降。在理解生态环境影响机理的基础上制定有针对性的管理对策,有助于将河道采砂造成的干扰控制在河流系统可以承受的范围之内,减轻或避免产生负面的生态环境问题。

语种： 中文

作者： 刘飞;喻夜兰;邹冬生;朱育峰;黄月飞

期刊： 草业科学,2016年33(11):2259-2265 ISSN：1001-0629

作者机构： [刘飞] 湖南农业大学生物科学技术学院,湖南长沙410128;[刘飞] 湖南农业大学东方科技学院,湖南长沙410128;湖南农业大学东方科技学院,湖南长沙,410128;湖南农业大学生物科学技术学院,湖南长沙,410128;[黄月飞; 朱育峰; 喻夜兰] 湖南农业大学东方科技学院

关键词： 龙须草;地理种;叶片解剖特征;造纸材料;壁腔比

摘要： 主要采用扫描电子显微镜技术,对收集的20个龙须草(Eulaliopsis binata)种质资源叶片进行电镜扫描,结果表明,不同种质资源叶片形态中的叶长、叶宽、叶面积,以及叶解剖结构中的叶片表皮厚度、叶片厚度、叶片气孔密度、叶片气孔长、叶片气孔宽、叶片纤维细胞直径、胞壁厚度、腔径、腔壁比等均呈现出显著或极显著差异,以优选造纸材料中重要指标壁腔比进行聚类分析,可将供试龙须草种质资源造纸性能分为最优、较好、较差和最差4类。试验结果可为中国南方丘陵区龙须草种质资源良种选育和开发利用研究提供依据。

语种： 中文

作者： Jian, Yan;Zhu, Zhenke*;Xiao, Mouliang;Yuan, Hongzhao;Wang, Jiurong;...

期刊： Archives of Agronomy and Soil Science,2016年62(12):1678-1685 ISSN：0365-0340

通讯作者： Zou, Dongsheng;Zhu, Zhenke

作者机构： [Jian, Yan; Zou, Dongsheng] Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.;[Xiao, Mouliang; Wang, Jiurong; Jian, Yan; Wu, Jinshui; Zhu, Zhenke; Yuan, Hongzhao; Ge, Tida] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.

通讯机构： [Zou, Dongsheng] H;[Zhu, Zhenke] C;Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha, Hunan, Peoples R China.;Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Proc Subtrop Reg, Changsha, Hunan, Peoples R China.

关键词： C cycling;CO2 fixation;microbial autotrophs;paddy soil;soil microbial biomass

摘要： Similar to higher plants, microbial autotrophs possess photosynthetic systems that enable them to fix CO2. To measure the activity of microbial autotrophs in assimilating atmospheric CO2, five paddy soils were incubated with 14C-labeled CO2 for 45 days to determine the amount of 14C-labeled organic C being synthesized. The results showed that a significant amount of 14C-labeled CO2 incorporated into microbial biomass was soil specific, accounting for 0.37%–1.18% of soil organic carbon (14C-labeled organic C range: 81.6–156.9 mg C kg−1 of the soil after 45 days). Consequently, high amounts of C-labeled organic C were synthesized (the synthesis rates ranged from 86 to 166 mg C m−2 d−1). The amount of atmospheric 14CO2 incorporated into microbial biomass (14C-labeled microbial biomass) was significantly correlated with organic C components (14C-labeled organic C) in the soil (r = 0.80, p < 0.0001). Our results indicate that the microbial assimilation of atmospheric CO2 is an important process for the sequestration and cycling of terrestrial C. Our results showed that microbial assimilation of atmospheric CO2 has been underestimated by researchers globally, and that it should be accounted for in global terrestrial carbon cycle models. © 2016 Informa UK Limited, trading as Taylor & Francis Group.

语种： 英文

作者： 杨宁;邹冬生;杨满元;付美云;林仲桂;...

期刊： 林业科学,2016年52(8):146-156 ISSN：1001-7488

通讯作者： Zou, Dongsheng

作者机构： [Yang, Ning; 林仲桂; 赵林峰; 付美云; 杨宁] College of Landscape Architecture, Hunan Environmental-Biological Polytechnic College, Hengyang, 421005, China;[Yang, Ning; 邹冬生] College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China

通讯机构： College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China

关键词： 植被恢复;土壤微生物群落;多样性;紫色土;衡阳

摘要： 【目的】探讨衡阳紫色土丘陵坡地不同植被恢复阶段土壤微生物群落多样性的变化特征,明确土壤微生物群落多样性对植被恢复的响应规律,探明研究区域退化生态系统恢复机制,为构建该区域生态系统恢复技术体系提供理论依据。【方法】采用空间序列代替时间序列方法,在研究区域内选择立地基本相似的裸荒地、草本群落、灌木群落与乔木群落4种典型的植被类型表示恢复的4个阶段,运用Biolog-ECO微平板技术,对4个阶段的土壤微生物群落多样性进行研究。【结果】植被恢复后土壤微生物群落代谢活性显著升高(P < 0.05);相同土层不同恢复阶段代表土壤微生物活性和功能多样性的平均颜色变化率率大小顺序为乔木群落>灌木群落>草本群落>祼荒地,相同恢复阶段不同土层的平均颜色变化率大小顺序为0 ~ 10 cm土层> 10 ~ 25 cm土层> 25 ~ 40 cm土层; 4个恢复阶段土壤微生物群落的Shannon-Wiener物种丰富度指数、Shannon-Wiener均匀度指数、Simpson优势度指数和McIntosh指数以乔木群落最高(P < 0.05),草本群落和灌木群落其次(P > 0.05),草本群落最低(P < 0.05);各恢复阶段对不同C,N源利用强度的大小顺序为乔木群落>灌木群落>草本群落>裸荒地(P < 0.05),不同土层对各C,N源利用强度的大小顺序为0 ~ 10 cm土层> 10 ~ 25 cm土层> 25 ~ 40 cm土层(P < 0.05);主成分分析表明,从31种C,N源类型提取的与C,N源利用相关的主成分1和主成分2分别能解释变量方差的37.24%和15.89%,在主成分分离中起主要贡献作用的C,N源为糖类、氨基酸类以及代谢中间产物和次生代谢物;相关分析表明,土壤含水量、土壤总有机碳、全氮、全磷和速效磷对土壤微生物群落多样性具有重要影响。【结论】植被恢复可使土壤微生物代谢功能增强,土壤微生物繁殖快、数量大,从而促进土壤微生物对土壤C,N源的利用强度。

语种： 中文