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Overview of Theory and Model of Tropical Agricultural Circular Economy in hainan Province

Asian Agricultural Research 2011年第5期3卷 119-122页

作者： YU Hua-mei1,2,GE Cheng-jun3 1.college of Economics and Management,hainan university,haikou 570208,china 2.School of Chemical and environmental Engineering,china university of Mining and Technology,Beijing 100083,china 3.college of environment and plant protection,hainan university,haikou 570208,china college of Economics and Management Hainan University School of Chemical and environmental Engineering China University of Mining and Technology college of environment and plant protection Hainan University

This paper gives a general overview of rationale of tropical agricultural circular *** the basis of ecological economic theory,circular economy is a new model of economic development which aims at realizing reducing of resources use,reuse of products and recycling of wastes,conforming to the principle of *** is to make economic system melt into the process of cycle of material of natural ecological system *** paper introduces the advantages of developing tropical agriculture in hainan Province,the main problems existing in the development and two main models of sustainable tropical agricultural development in hainan Province at present.9 typical models of tropical agricultural circular economy in hainan Province are listed in particular,including compound ecological project of forestry and animal husbandry,three-dimensional planting model of plantation,multilayered structure of eucalyptuses,sustainable agricultural model of sightseeing,the model of using animal manure,precision tropical agricultural model,clean production model of tropical agriculture,deep processing model of tropical agricultural products,and the model of ecological agricultural *** countermeasures and suggestions are put forward to promote development of tropical agricultural circular economy in hainan Province as follows:take actions that suit local circumstances,exert advantage and exploit potential;give full play to advantage of integration of production,teaching and research,and promote agriculture by applying scientific and technological advances;the whole staff participate and strengthen construction of soft environment and hard environment.

关键词： Circular economy Tropical agriculture Sustainable

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Accumulation of polycyclic aromatic hydrocarbons from contaminated soil by Kandelia candel

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Acta Oceanologica Sinica 2009年第6期28卷 24-29页

作者： HONG Youwei YUAN Dongxing LIAO Dan LIU Baomin State Key Laboratory of Marine environmental Science Xiamen University Xiamen 361005 China Institute of Urban environment Chinese Academy of Sciences Xiamen 361021 China college of environment and plant protection Hainan University Danzhou 71737 China

The purpose of this study was to investigate the accumulation behavior of two typical PAHs, phenanthrene （PHE） and fluoranthene （FLA）, uptaken by the mangrove Kandelia candel in various treated sandy soils. The experiment lasted for three months. Soil and plant samples were collected after 3, 6, 9 and 13 weeks of the incubation and the levels of PAHs were analyzed using a GC/MS （HP6890-5975B）. The results showed that the root accumulations of PHE and FLA were elevated with the increase of the PAH concentrations in the soil. With prolonged exposure time, PHE and FLA concentrations of the roots increased significantly in comparison with the control. PHE and FLA concentrations of root after 13 weeks of treatment ranged from 0.28 to 4.36 #g.g-1 and 0.79 to 35.76 pg.g 1 respectively. The calculated mean values of the root concentration factors were 0.58 for PHE and 0.71 for FLA. This indicated that root accumulation of FLA was greater than PHE, which would result from the higher octanol-water partition coefficient （Kow） of FLA. These results underline the ability of mangroves to remove PAHs from contaminated marine substrates and hence their potential use in bioremediation and the removal of PAHs from the marine food chain.

关键词： accumulation uptake phenanthrene fluoranthene mangrove ecosystem Kandelia candel

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Morphological and Molecular Analysis of Genetic Variability within Isolates of Corynespora cassiicola from Different Hosts

Morphological and Molecular Analysis of Genetic Variability ...

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中国植物病理学会2009年学术年会

作者： Qi Yanxiang~(1,2),Pu Jinji~1,Zhang Xin~1,Xie Yixiang~1,Liu Xiaomei~3,Zhang He~1,Zhang Huiqiang~1 (1.Key Laboratory of Pests Detection and Control for Tropical Agriculture,hainan,Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien Pests,Ministry of Agriculture,environment and plant protection Institute,Chinese Academy of Tropical Agricultural Sciences,Danzhou,hainan 571737 2.college of Life Science and Technology,Guangxi university,Nanning,Guangxi 530004 3.college of environment and plant protection,hainan university,Danzhou,hainan 571737)

＜正＞Twenty-two isolates of Corynespora cassiicola obtained from cucumber,papaya,eggplant,tomato, bean,vigna,sesame and Hevea rubber were analysised by morphological features and inter simple

关键词： morphology plant pathogen inter simple sequence repeat(ISSR) Corynespora cassiicola phylogenetics

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Involvement of Ambient pH-sensing Signal Transduction Pathway of Colletotrichum gloeosporioides in Control of Fungal Pathogenicity on Mango

Involvement of Ambient pH-sensing Signal Transduction Pathwa...

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中国植物病理学会2008年学术年会

作者： Pu Jinji~(1,2) Xie Yixian~1 Zhang Xin~1 Qi Yangxian~1 Zhang Chunfa~2 Liu Xiaomei~3 1. environment and plant protection Institute, Chinese Academy of Tropical Agricultural Science,Danzhou, hainan 571737 2. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Science, haikou, hainan 571101 3. environment and plant protection college, hainan university, Danzhou, hainan 571737

Mango cultivation is an important industry in tropical and sub-tropical area of ***, mostly caused by Colletotrichum gloeosporioides,is one of major disease of *** is still a challenge to develop more effective and mo... 详细信息

关键词： Mangifera indica Colletotrichum gloeosporioides pathogenicity ambient pH-sensing signal transduction pathway pH-responsive transcription regulator gene targeted gene disruption

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Influence of Long-Term Fixed Fertilization on Diversity of Arbuscular Mycorrhizal Fungi

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Pedosphere 2009年第5期19卷 663-672页

作者： WANG Miao-Yan HU Liang-Bin WANG Wei-Hua LIU Shu-Tang LI Min LIU Run-Jin Institute of Mycorrhizal Bioteehnology Agronomy and Plant Protection College Qingdao Agricultural University Qingdao 266109 (China) college of Food Henan Institute of Science and Technology Xinxiang 453003 (China) college of Resources and environment Qingdao Agricultural Univers-ity Qingda~ 266109 (China)

Diversity of arbuscular mycorrhizal fungi(AMF) was investigated in a field that had received long-term fixed ferti-lization(LFF) for 26 *** were a total of 12 treatments in triplicates with different amounts of manure,urea,calcium phosphate,and potassium *** soil samples of maize and wheat grown in the experimental field in Shandong Province,china,were collected in September 2003 and May 2004,*** mycorrhizal fungal spores were isolated and identified using morphological *** colonization percentage,spore density(SD),species richness(SR),relative abundance(RA),and Shannon-Weiner index(SWI) were *** recognized species of AMF belonging to 5 genera were ***-term fixed fertilization significantly influenced colonization percentage,SR,SD,and species diversity of *** adaptability of AMF to soil fertility was different among *** richness and SD of AMF in maize and wheat rhizosphere soils were the highest in the nonferti-lization treatment(control) and lowest in the high manure + high nitrogen treatment(M2N2).The SWI decreased as the fertilization level increased except in the low manure treatment(M1) on *** with the other treatments,Treatment M2N2 significantly reduced SD of Glomus,and the high manure + low nitrogen treatment(M2N1) significantly retarded sporulation of *** treatments stimulated sporulation of Glomus *** density of *** was higher in the high nitrogen + phosphorus + potassium treatment(N2PK) than in the high nitrogen + phosphorus treatment(N2P) and the high nitrogen + potassium treatment(N2K).The SD of *** was higher in Treatment N2K than Treatments N2PK and *** conclusion,long-term fixed fertilization,especially with high levels of manure and N,decreased SR,SD,and colonization and changed the species composition of AMF.

关键词： maize mycorrhizal colonization mycorrhizal sporulation rhizosphere soil wheat

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Preliminary study on interaction between plant frictional root and rock-soil mass

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Science china(Technological Sciences) 2010年第7期53卷 1938-1942页

作者： YAN ZhiXin1’2, SONG Yun3, JIANG Ping1’2 & WANG HouYu4 1 Key Laboratory of Mechanics on Disaster and environment in Western china (Lanzhou university), Ministry of Education, Lanzhou 730000, china 2 School of Civil Engineering and Mechanics, Lanzhou university, Lanzhou 730000, china 3.college of Civil Engineering and Mechanics, Central South university of Forestry and Technology, Changsha 410004, china 4 Air Force Engineering Design & Research Bureau, Beijing 100077, china Key Laboratory of Mechanics on Disaster and environment in Western china (Lanzhou university) Ministry of Education Lanzhou China School of Civil Engineering and Mechanics Lanzhou University Lanzhou China college of Civil Engineering and Mechanics Central South University of Forestry and Technology Changsha China Air Force Engineering Design & Research Bureau Beijing China

The interaction between lateral root system of woody plant and soil mass is similar to the one between shrub, herbage and soil mass, and has the effect of frictional reinforcement on slope soil. It plays an important role in reinforcing soil strength in shallow slope. Therefore, slope soil mass can be considered as a composite of soil and plant roots and the soil strength and stability of shallow slope soil mass are improved. However, current researches still remain on the level of qualitatively analyzing the relation between root and soil mass. In this paper, some exploratory researches on quantitative analysis of the interaction mechanism between root and soil mass are conducted. With the study of interaction between herbage root system (lateral root system of woody plants) and soil mass, the mechanical model of interaction between frictional root and soil mass is established. The accuracy of the model is verified by field experiments of Pinus Yunnanensis. The mechanical model provides a crucial theoretical guidance to quantitatively analyzing the interaction between plant root and soil mass; it also has certain values in application.

关键词： plant slope protection vegetation for slope protection mechanical model frictional root

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Regionalization of wheat powdery mildew oversummering in china based on digital elevation

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Journal of Integrative Agriculture 2018年第4期17卷 901-910页

作者： ZOU Ya-fei QIAO Hong-bo CAO Xue-ren LIU Wei FAN Jie-ru SONG Yu-li WANG Bao-tong ZHOU Yi-lin State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences college of Information and Management Science Henan Agricultural University environment and plant protection Institute Chinese Academy of Tropic Agricultural Sciences/Key Laboratory of Integrated Pest Management on Tropical Crops Ministry of Agriculture Institute of plant protection Henan Academy of Agricultural Sciences college of plant protection Northwest A&F University

Blumeria graminis f. sp. tritici, the pathogen that causes wheat powdery mildew, is one of the most important diseases affecting wheat production in china, and the oversummering is the key stage of wheat powdery mildew epidemic. The more oversummering regionalization of wheat powdery mildew has played an important role in disease prediction, prevention and control. In this study, we analyzed the correlation between oversummering data of wheat powdery mildew and the meteorological factors over the past years, and determined that temperature was the key meteorological factor influencing oversummering of wheat powdery mildew. The average temperature at which wheat powdery mildew growth was terminated(26.2°C) was used as the threshold temperature to regionalize the oversummering range of wheat powdery mildew. This regionalization was done using the GIS ordinary kriging method combined with the Digital Elevation model(DEM) of china. The results showed that annual probability of oversummering region based on Model 26.2 were consistent with the actual survey of the more summer wheat powdery mildew. Wheat powdery mildew oversummering regions in china mainly cover mountainous or high-altitude areas, and these regions form a narrow north-south oversummering zone. Oversummering regions of wheat powdery mildew is mainly concentrated in the high-altitude wheat growing areas, including northern and southern Yunnan, northwestern Guizhou, northern and southern Sichuan, northern and southern Chongqing, eastern and southern Gansu, southeastern Ningxia, northern and southern Shaanxi, central Shanxi, western Hubei, western Henan, northern and western Hebei, western Liaoning, eastern Tibet, eastern Qinghai, western Xinjiang and other regions of china.

关键词： wheat powdery mildew digital elevation model oversummering regionalization geographic information system

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EFFECTS OF AGERATUM CONYZOIDES ON SOIL ENZYME ACTIVITIES AND PHYSICAL AND CHEMICAL PROPERTIES IN DIFFERENT INVASIVE DURATION

EFFECTS OF AGERATUM CONYZOIDES ON SOIL ENZYME ACTIVITIES AND...

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International Congress on Biological Invasions

作者： Gui-Hua ZHANG~(1,2),Guang-Yi LI~1,and Qin-Fen LI~1 1 Key Laboratory of Monitoring and Control of Tropical Agricultural and Forest Invasive Alien Pests,Ministry of Agriculture,environment and plant protection Institute,CATAS,Danzhou hainan china 571737. 2 college of environment and plant protection,hainan university,Danzhou hainan china 571737

Ageratum conyzoides *** an invasive weed native to tropical America,which has invaded south and south-west of china and become a regional nixious *** field study,we find that rubber(Hevea brasiliensis) forest opening is always invaded by ***,which grows as *** research suggested that exotic plant invasion could alter ecological condition of soil in invaded *** present study compared effects of ***,which invaded the rubber forest ecosystem,on nine soil properties and activities of six soil enzyme in one-year and more than two-year invasive *** results indicated that:(1)PH value did not change significantly between non-invaded site and one-year-history invaded site, however,PH increased with the extention of invasive time.(2) SOM decreased and positive correlation existed among SOM,catalase and invertase,while cellulase firstly increased then decreased.(3) Total N and NO-N raised,whereas NH-N showed the same variable regularity with cellulase;good relevance occurred between urease and total N,protease did not significantly altered.(4) Total P declined,available P heightened and no obvious relevance appeared between phosphatase and total P.(5) Total K rised and available K *** conclusion,*** invasion altered the soil characteristics and soil enzyme activities of rubber forest opening,which probably enhanced its viability and competitive capacity in order that it could supplant and suppress other herbage growth.

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Variation in copper and zinc tolerance and accumulation in 12 willow clones： implications for phytoextraction

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Journal of Zhejiang university-Science B(Biomedicine & Biotechnology) 2014年第9期15卷 788-800页

作者： Wei-dong YANG Yu-yan WANG Feng-liang ZHAO Zhe-li DING Xin-cheng ZHANG Zhi-qiang ZHU Xiao-e YANG Ministry of Education Key Laboratory of environmental Remediation and Ecological Health College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 China environment and plant protection Institute Chinese Academy of Tropical Agricultural Sciences (CATAS) Danzhou Scientific Observation and Experimental Agro-Environment Station Ministry of Agriculture Danzhou 57173 7 China college of Agriculture Hainan University Haikou 570228 China

Willows （Salix spp.） have shown high potential for the phytoextraction of heavy metals. This study com- pares variations in copper （Cu） and zinc （Zn） tolerance and accumulation potential among 12 willow clones grown in a nutrient solution treated with 50 pmol/L of Cu or Zn, respectively. The results showed differences in the tolerance and accumulation of Cu and Zn with respect to different species/clones. The biomass variation among clones in response to Cu or Zn exposure ranged from the stimulation of growth to inhibition, and all of the clones tested showed higher tolerance to Cu than to Zn. The clones exhibited less variation in Cu accumulation but larger variation in Zn accumulation. Based on translocation factors, it was found that most of the Cu was retained in the roots and that Zn was more mobile than Cu for all clones. It is concluded that most willow clones are good accumulators of Zn and Cu.

关键词： Salix spp Copper Zinc Accumulation Tolerance Hydroponic screening

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CONSERVATION OF BIODIVERSITIY AND SUSTAINABLE DEVELOPMENT IN china

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武夷科学 2002年第1期18卷 233-242页

作者： YOU Minsheng, XU Duiming, HOU Youming(college of plant protection, Fujian Agriculture and Forestry university, Fuzhou 350002) college of plant protection Fujian Agriculture and Forestry University Fuzhou 350002

生物多样性是生命系统的基本特征 ,也是生物有机体及其与环境之间复合而成的生态系统和各种有关生态过程的总和。生物多样性主要包括三个层次 :基因多样性、物种多样性 ,生态系统多样性。中国的幅员辽阔 ,生境复杂 ,气候多变 ,历史悠久 ... 详细信息

生物多样性是生命系统的基本特征 ,也是生物有机体及其与环境之间复合而成的生态系统和各种有关生态过程的总和。生物多样性主要包括三个层次 :基因多样性、物种多样性 ,生态系统多样性。中国的幅员辽阔 ,生境复杂 ,气候多变 ,历史悠久 ,拥有丰富的植物、动物和微生物种类及不同的生态系统类型。多年来 ,我国采取了一系列措施和行动 ,旨在保护生物多样性 ,促进国家经济、人类社会和自然生态系统的持续发展。

关键词：生物多样性,物种资源,生态系统多样性,多样性保护,可持续发展

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