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说“栖”道“息”
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作者 孙苑 《语文天地(初中版)》 2010年第12期26-26,共1页
生:老师,布封的《莺》中有一句"它们居住在花园里,树丛中,或是种植蚕豆青豆等的菜田里,一般在蔬菜架子上栖息",其中"栖息"一词的意思是什么?
关键词 中学 语文教学 汉字 “栖” “息”
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从隋“栖岩道场舍利塔碑”看蒲州佛教 被引量:2
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作者 姚雅欣 《文物世界》 2003年第4期26-28,共3页
栖岩寺位于山西省永济市府城东南l2公里的中条山巅,为隋太祖武元皇帝“于北魏孝武帝永熙年间(532-535年)建立。初名灵居寺,隋初易名栖岩寺、栖岩道场,为“河东诸寺胜赏之最”。栖岩寺地处历史上的蒲州,相传为舜帝之都蒲坂界,历代... 栖岩寺位于山西省永济市府城东南l2公里的中条山巅,为隋太祖武元皇帝“于北魏孝武帝永熙年间(532-535年)建立。初名灵居寺,隋初易名栖岩寺、栖岩道场,为“河东诸寺胜赏之最”。栖岩寺地处历史上的蒲州,相传为舜帝之都蒲坂界,历代文物胜迹汇萃,有昙岩洞,仁寿寺、普救寺、万固寺等;这里高僧云集,仅唐释道宣《续高僧传》就记载蒲州高僧15位,其中栖岩寺有昙延、道杰、神素、真慧和智通等五人立传。史载,隋文帝常以外国所贡玛瑙施寺为供,唐代文人儒士游历于此,现有李益、卢纶、李端等赋诗咏叹传留。 展开更多
关键词 岩寺 “栖岩道场舍利塔碑” 佛教 隋代
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金代公共资源问题的一个侧面——以中都大兴府仰山栖隐寺与三家村的“山林”之争为例 被引量:1
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作者 杜洪涛 《史学集刊》 CSSCI 北大核心 2014年第2期115-121,共7页
在中国古代社会中"山林"是包含生长或蕴藏于其中的动物、植物和矿物等物产的公共资源。"山林"资源的分争与管理往往牵涉到基层社会与国家制度等诸多方面的问题。金代中都大兴府仰山栖隐寺是与金朝政府关联紧密的著... 在中国古代社会中"山林"是包含生长或蕴藏于其中的动物、植物和矿物等物产的公共资源。"山林"资源的分争与管理往往牵涉到基层社会与国家制度等诸多方面的问题。金代中都大兴府仰山栖隐寺是与金朝政府关联紧密的著名寺庙,占据着大量的"山林"的资源。大定年间,因公共资源的使用问题与栖隐寺矛盾重重的三家村状告前者强占"山林",从而引发了惊动尚书省的"山林"诉讼案。通过分析这起诉讼案可揭示出金朝政府管理"山林"资源的制度性规定及相关规定在基层社会中的实际运作。 展开更多
关键词 公共资源 隐寺 三家村 金代
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重返生命之源,重塑日常诗意--《城堡之外》中的乡土叙事研究
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作者 王敏 《中国文学研究》 北大核心 2024年第3期207-212,共6页
《城堡之外》通过展现四个家族几代人近百年间的悲欢离合,追溯了现代个体与故乡及历史之间切割不断的血脉关联。小说呈现出都市与乡村两种空间的对立,在都市人焦灼的精神状态与古罗村宁静神秘的栖居生活所形成的对照视域中钩沉历史,反... 《城堡之外》通过展现四个家族几代人近百年间的悲欢离合,追溯了现代个体与故乡及历史之间切割不断的血脉关联。小说呈现出都市与乡村两种空间的对立,在都市人焦灼的精神状态与古罗村宁静神秘的栖居生活所形成的对照视域中钩沉历史,反思“家园”与“栖居”的意义;又在时间维度中对话传统,通过勾连个人经验与家族记忆之间的关系,实现“归家”的状态。而小说对传统习俗的描写揭示了日常生活在工业化历史进程中被遮蔽的通俗诗意,为我们修复传统与现代之间的断裂并重新抵达生活的真实指明了方向。 展开更多
关键词 《城堡之外》 乡土叙事 “栖居” 日常生活
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让“栖居景观”成为社会主义新农村建设的景观意象表达
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作者 许雁冰 喻仲文 《创意与设计》 2015年第2期36-41,共6页
乡村景观多样性地表达了农耕时代人居环境中的生态性、经济性和社会性,为人类创造出平等、民主和具有自由民族精神的景观意象。它在人-地-生态伦理的中相互适应中,凝结出朴素的生态观、朴质的社会性与安宁祥和的栖居性审美景观。传统乡... 乡村景观多样性地表达了农耕时代人居环境中的生态性、经济性和社会性,为人类创造出平等、民主和具有自由民族精神的景观意象。它在人-地-生态伦理的中相互适应中,凝结出朴素的生态观、朴质的社会性与安宁祥和的栖居性审美景观。传统乡村景观,呈现着安宁、稳定、平和,自给自足、与世无争、富有归属感和自我认可感的审美意象。是新农村建设应中,乡村人口心灵的归属和精神的寄托,更是中华民族不可或缺的文化"根"与"魂"的所在。 展开更多
关键词 “栖居景观” 新农村建设 景观 景观意象
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Comparative Study of the Biological Activities of the Skin Secretions from Six Common Chinese Amphibians 被引量:28
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作者 赖仞 赵宇 +3 位作者 杨东明 查宏光 李文辉 张云 《Zoological Research》 CAS CSCD 北大核心 2002年第2期113-119,共7页
Water soluble skin secretions of six common Chinese amphibians were studied for their biological and enzymatic activities.The skin secretions of Tylototriton verrucosus,Bombina maxima ,and Bufo andrewsi were f... Water soluble skin secretions of six common Chinese amphibians were studied for their biological and enzymatic activities.The skin secretions of Tylototriton verrucosus,Bombina maxima ,and Bufo andrewsi were found toxic to mice with the intraperitoneal LD 50 of 11 5?mg/kg,18 8?mg/kg,and 264?mg/kg,respectively.No acute lethal toxicities were observed for the skin secretions of Rana nigromaculata,Rana guentheri and Rana limnocharis in a dose up to 500?mg/kg.The lethal toxicities of the skin secretions of T verrucosus and B maxima to mice are in the same grade as those of Viperidae snake venoms.The toxic components in T verrucosus and B maxima skin secretions are the proteins with molecular weights ranging from 3 to 60?kDa.All the skin secretions had both proteolytic activity and trypsin inhibitory activity.The skin secretions from T verrucosus , B maxima and B andrewsi also displayed wide spectrum antimicrobial activity.On the other hand,the skin secretions from B andrewsi and B maxima showed cytotoxicity on human cancer cells.All the six samples had not significant effects on mammalian blood coagulation system.Phospholipase A 2 activity was only found in the skin secretions of T verrucosus .None of these skin secretions showed acetylcholine esterase activity. 展开更多
关键词 AMPHIBIAN TOXICITY ANTIMICROBIAL Skin secretions Biological activity
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Habitat Utilization of the Sichuan Hill Partridge (Arborophila rufipectus) in the Non-breeding Period in Laojunshan Nature Reserve 被引量:10
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作者 廖文波 李操 +1 位作者 胡锦矗 卢欣 《Zoological Research》 CAS CSCD 北大核心 2007年第2期172-178,共7页
The Sichuan Hill Partridge (Arborophila rufipectus ) requires successional broadleaf forest and their populations have declined as a result of fragmentation of endemic bird areas in subtropical forest in the mountai... The Sichuan Hill Partridge (Arborophila rufipectus ) requires successional broadleaf forest and their populations have declined as a result of fragmentation of endemic bird areas in subtropical forest in the mountains of southwestern China. In this paper, habitat utilization of the Sichuan Hill Partridge was studied in replanted broadleaf forests, in Laojunshan Nature Reserve of Sichuan, to determine the importance of habitat features, during the non-breeding period from November to December 2005. The Sichuan Hill Partridge utilized habitats within elevations of 1 000 to 1 600 m and with a south-facing slope of two to 15 degrees, close to road and forest edges. The birds preferred sites with smaller bamboo density, lower bamboo cover and snow cover and shrub cover was greater at used sites than at random sites. Principal components analysis indicated that food on the ground layer, topographic condition, concealment and temperature were the first four components of bird habitat selection, and the load of the first component was 29.407%. The findings indicated that the Sichuan Hill Partridge might face the well-documented trade-off between food resource and predation risk when utilizing habitat. We suggest that the conservation and restoration of successional broadleaf forest habitats will benefit the Sichuan Hill Partridge. 展开更多
关键词 Sichuan Hill Partridge (Arborophila rufipectus Ecological factors Non-breeding period Habitat utilization
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Breeding Habitat Selection of Reeves’s Pheasant (Syrmaticus reevesii) in Dongzhai National Nature Reserve, Henan Province, China 被引量:7
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作者 徐基良 张晓辉 +4 位作者 张正旺 郑光美 阮祥锋 张可银 溪波 《Zoological Research》 CAS CSCD 北大核心 2010年第2期198-204,共7页
Reeves's Pheasant (Syrmaticus reevesii) is a threatened pheasant species endemic to China. The habitat use of territorial male birds was surveyed by the help of live decoys in a core area of Dongzhai NationaI Natur... Reeves's Pheasant (Syrmaticus reevesii) is a threatened pheasant species endemic to China. The habitat use of territorial male birds was surveyed by the help of live decoys in a core area of Dongzhai NationaI Nature Reserve. The breeding habitat selection of this pheasant was examined at two scales (115 m and 250 m scale, i.e. 4.15 hm^2 and 19.63 hm^2, respectively), including the characteristics at distance scale. Investigation was based on line transect, RS and GIS in Dongzhai National Natural Reserve from 2001 to 2003. Moreover, a range of habitat variables were compared between used and control points at each scale, and stepwise logistic regression was applied to select the key scale and the key habitat factors in relation to breeding habitat selection of this bird. Our results stated that the territorial males at Baiyun occurred mostly in mixed forests, followed by fir forests, pine forests, shrubs, and broadleaf forests. The area of conifer forests was the key factor influencing habitat selection of this bird in breeding period at the scales of 115 m and 250 m, and the proximity of farmland was important for habitat selection in breeding seasons. Furthermore, Reeves's Pheasants attached great importance to the scale of 115 m. When considering a range of habitat variables at all scales within a multivariate regression, the leading factors having effect on habitat selection in the breeding period were areas of conifer forests at 115 m scale and the distance to farmland. In addition, these above results suggested that strengthening the management of suitable habitat, and optimizing the habitat configuration are important in promoting conservation of this bird. However, it also highlighted the importance of initiating future researches on the conifer forests and their impact on the population of Reeves's Pheasants, which would be beneficial to promote the habitat conservation of this pheasant more effectively. 展开更多
关键词 Syrmaticus reevesii Breeding period Habitat selection
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The Community Structure of Benthic Macroinvertebrates Associated with Spartina alterniflora in the Yangtze Estuary, in China 被引量:7
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作者 谢志发 章飞军 +1 位作者 刘文亮 陆健健 《Zoological Research》 CAS CSCD 北大核心 2007年第2期167-171,共5页
Benthic macroinvertebrate communities in Spartina alterniflora zones in the Yangtze Estuary, in China, were investigated seasonally in 2005, and their structure and biodiversity were analyzed. Twenty-one species were ... Benthic macroinvertebrate communities in Spartina alterniflora zones in the Yangtze Estuary, in China, were investigated seasonally in 2005, and their structure and biodiversity were analyzed. Twenty-one species were identified, across four Classes; 10 species of Crustacea, five species of Polychaeta, five species of Gastropoda, and one species of Lamellibranchia. Dominant species included: Assiminea sp., Notomastus latericeus, Cerithidea largillierl, Gtauconome chinensi and Gammaridae sp. Functional groups were comprised of a phytophagous group and a detritivorous group. The average density of all benthic macroinvertebrates was 650.5 ±719.2 inds/m^2 in the survey area. The high value of the standard deviation of the average density was a result of abundant Assiminea sp. at Beihu tidal flats. The average density of macroinvertebrates from Beihu tidal flat, Chongming Dongtan to Jinshanwei tidal flat decreased gradually. There was significant difference between compositions and abundance of macroinvertebrates along the estuary gradient (P 〈 0.05). The density and biodiversity were highest in summer and lowest in winter. The mean biomass of macroinvertebrates was 20.8 ± 6.1 g/m^2. Biomass changed seasonally in the same way as density, with the change in biomass being: summer (Aug.) 〉autumn (Oct.) 〉spring (Apr.) 〉 winter (Dec.). A BIO-ENV analysis showed that the mean grain size of sediment, height of Spartina and salinity were the ma- jor factors which affected the structure of the macroinvertebrate community. Variations in the community structure were probably caused by the population dynamics of S. alterniflora along with the variation in sampling time and location. 展开更多
关键词 Benthic macroinvertebrate Spartina alterniflora Yangtze Estuary Community structure
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Population Density and Habitat Utilization of Ibex(Capra ibex)in Tomur National Nature Reserve,Xinjiang,China 被引量:9
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作者 徐峰 马鸣 吴逸群 《Zoological Research》 CAS CSCD 北大核心 2007年第1期53-55,共3页
Surveys was conducted to study the population density and habitat utilization of the ibex (Capra ibex) in Tomur National Nature Reserve during October- December 2005. The results are as follows: ① The mean group s... Surveys was conducted to study the population density and habitat utilization of the ibex (Capra ibex) in Tomur National Nature Reserve during October- December 2005. The results are as follows: ① The mean group size of the ibex in Tomur Nature Reserve is 8.43 and the population density is 269.76/100 km^2; ② The ibex prefer areas with steep slope (between 30° -45°), broken substrates and cliffs nearby ( 〈 100 m). They avoid grasslands and fiat hillsides; ③The probable reason for this habitat selection is serf-protection. 展开更多
关键词 IBEX POPULATION Habitat utilization Tomur National Nature Reserve
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Bioturbation Effects of Benthic Fish on Soil Microorganism of Paddy Field 被引量:5
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作者 胡勇军 孙刚 +1 位作者 房岩 韩国军 《Agricultural Science & Technology》 CAS 2010年第4期172-175,共4页
[Objective]The research aimed to explore the bioturbation effects of benthic fish Misgurnus anguillicaudatus on soil microorganism(microflora,biomass,and special physiological groups) of paddy field.[Method]The expe... [Objective]The research aimed to explore the bioturbation effects of benthic fish Misgurnus anguillicaudatus on soil microorganism(microflora,biomass,and special physiological groups) of paddy field.[Method]The experiments were conducted locally and quantitatively in field,using plate count and MPN methods.[Result]In the microflora of paddy soil tested,the quantity of bacteria is the largest,followed by actinomycetes and fungus.Compared with the control paddy fields,in rice-fish paddy fields the quantities of bacteria,actinomycetes and fungus were higher,at significance level P 〈0.05,P 〈0.01,and P 〈0.01 respectively.The microbial biomass C and N in rice-fish paddy fields is remarkably higher than those in control paddy fields,both at significance level P 〈0.01;the microbial biomass P in rice-fish paddy fields is higher than that in control paddy fields,but at significance level P 〈0.05.Benthic fish promotes the growth of soil azotobacter,cellulolytic bacteria,nitrobacteria,sulfur bacteria,and ammonifying bacteria,restricts the reproduction of nitrate reducing bacteria and sulfate reducing bacteria.[Conclusion]The benthic fish had important effects on microflora,microbial biomass,and special microorganism physiological groups of paddy soil,improves the living conditions of soil microorganisms,promotes the soil fertility and bio-chemical activity,which is beneficial for improving the supply ability of soil nutrients such as N,P,S,as well as the efficiency of nutrient utilization. 展开更多
关键词 Benthic fish Soil microorganism Paddy field Integrated ecosystem BIOTURBATION
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A Comparison of Macrofauna Communities in Different Mangrove Assemblages 被引量:9
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作者 唐以杰 余世孝 吴延勇 《Zoological Research》 CAS CSCD 北大核心 2007年第3期255-264,共10页
The characteristics of macrofauna communities in three mangrove assemblages [Avicennia marina+Acgiceras corniculatum (MC)community, A.corniculatum (C) community and Bruguiera gymnorrhiza+A.corniculatum (GC) co... The characteristics of macrofauna communities in three mangrove assemblages [Avicennia marina+Acgiceras corniculatum (MC)community, A.corniculatum (C) community and Bruguiera gymnorrhiza+A.corniculatum (GC) community] were studied in Zhanjiang Mangrove Nature Reserves during 2005 and 2006. Of the three mangrove assemblages, the macrofauna species number, density, biomass, Richness index and Shannon-Wiener index were the highest, and the Simpson dominance index was medial at MC community. However the Pielou Evenness index of MC community was slightly lower than that at C community. At C community, the number of macrofauna species obviously reduced, especially infaunal, caving and adhering life forms, and the biomass and density were the lowest. Because of the even distribution of individuals of different species, the Simpson dominance index was the lowest and the evenness index was the highest. Although the Richness index at C community was slightly lower than that at MC community, the Shannon-Wiener index was near to that at MC community. At GC community, the number of macrofauna species, especially infaunal and caving life forms, continued to decrease comparing C community, but the biomass and density increased slightly. As the distribution of individuals of different species was uneven, the Simpson dominance index was the highest and the Pielou Evenness index was the lowest. Furthermore, the Richness index dropped to the lowest. The Shannon-Wiener index also dropped accordingly to the lowest. The dominant life forms of MC were infaunal and caving, while those of C and GC community were both caving. The ratio of the GS/GSB of macrofauna communities in the three mangrove assemblages were 0.48, 0.63 and 0.80, respectively. The community structures at the same mangrove assemblages were all quite similar, with those at GC community being most similar. However, there were obvious differences among the community structures at the three different mangrove assemblages. These results implied that the different mangrove assemblages had different affects on the macrofauna communities and shed light on the macrofauna adaptation capability to specific habitats. 展开更多
关键词 Mangrove community MACROFAUNA Community structure
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Population and conservation status of the Himalayan Griffon(Gyps himalayensis) at the Drigung Thel Monastery,Tibet,China 被引量:3
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作者 刘超 霍志萍 于晓平 《Chinese Birds》 CSCD 2013年第4期328-331,共4页
The Himalayan Griffon(Gyps himalayensis), occurring mainly in the Tibetan Plateau, is one of the scavengers of Old World vultures. As of now, knowledge about the Himalayan Griffon in China remains scarce. Estimates of... The Himalayan Griffon(Gyps himalayensis), occurring mainly in the Tibetan Plateau, is one of the scavengers of Old World vultures. As of now, knowledge about the Himalayan Griffon in China remains scarce. Estimates of its number, habitat, and conservation status were carried out in 2003, 2009 and 2102 in the Lhasa River Valley, where we paid particular attention to the population living at the Drigung Thel Monastery, Mzizhokunggar County. The resident species occupies alpine meadows in the daytime and roosts at the upper parts of cliffs at night between 4400–5000 m elevation. The number of individual birds of the Himalayan Griffon around the monastery was estimated as 230 in 2003, 250 in 2009 and 200 in 2012. This population is considered relatively stable, thanks to the current conservation measures by Buddhist monks and local people. Given the lack of any baseline information, it is difficult for us to recommend and provide any effective conservation measures. 展开更多
关键词 Himalayan Griffon HABITAT POPULATION conservation status
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Emei Shan Liocichla: population, behavior and conservation 被引量:3
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作者 付义强 Simon D.DOWELL 张正旺 《Chinese Birds》 CSCD 2013年第3期260-264,共5页
Endemic to China, the Emei Shan Liocichla(Liocichla omeiensis) is considered globally vulnerable by the IUCN because of its small, declining population and fragmented range. The species has been recorded in only a few... Endemic to China, the Emei Shan Liocichla(Liocichla omeiensis) is considered globally vulnerable by the IUCN because of its small, declining population and fragmented range. The species has been recorded in only a few mountainous forests in south-central Sichuan and in the extreme northeast of Yunnan Province. We summarized the basic eco-biology information on its habitat,breeding, winter habits and behavior, voice, population status, research and conservation. 展开更多
关键词 Emei Shan Liocichla HABITAT BREEDING POPULATION CONSERVATION
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Macrobenthos Community Structure and Its Relations With Environmental Factors in Three Reservoirs in Tianjin 被引量:1
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作者 姜巨峰 傅志茹 +4 位作者 李文雯 张韦 孟一耕 钱红 李相普 《Agricultural Science & Technology》 CAS 2014年第6期947-953,969,共8页
[Objective] The aim was to research macrobenthos community structure and its relations with environmental factors in three reservoirs. [Method] Benthic diversity and water quality of Yuqiao Reservoir, Beidagang Reserv... [Objective] The aim was to research macrobenthos community structure and its relations with environmental factors in three reservoirs. [Method] Benthic diversity and water quality of Yuqiao Reservoir, Beidagang Reservoir and Er- wangzhuang Reservoir were investigated in May, July and September 2011, respec- tively. []Result] Of all the 14 sampling sites, 22 species of macroinvertebrates were collected, totally, which included 6 species of aquatic insects, 7 species of Mollusca, 2 species of Crustacean, 7 species of Oligochaeta. The species of macroinverte- brates during May, July and September in Yuqiao reservoir were 11, 8 and 10, respectively. The dominant species were Chironomus sinicus, and Monopylephorus limosus. The average density and biomass of the macrobenthos were 132.43 ind./m2 and 50.09 g/m2. Yuqiao reservoir was mostly at status of premediate polluted, according to the Margalef index, Shannon index and Pielou index. The species of during May, July and September in Beidagang reservoir were 5 5 and 5, respectively. The dominant species were Chironomus sinicus, Penaeus vannamei. The average density and biomass of the macrobenthos were 218 ind./m2 and 2.70 g/m2. Beidagang reservoir was mostly at status of heavy polluted, accord- ing to the Margalef index, Shannon-wiener index, Pielou index. The species of during May, July and September in Erwangzhuang reservoir were 3, 5 and 5, respectively. The dominant species were Monopylephorus limosus, Chi- ronomus sinicus. The average density and biomass of the macrobenthos were 104 ind/m2 and 0.20 g/m2. Erwangzhuang reservoir was mostly at status of intermediate polluted, according to the Margalef index, Shannon index, Pielou index. The density of zoobenthos in Yuqiao Reservoir was positively significantly correlated with TP (P〉 0.05), negatively correlated with NH4+-N (P〉0.05), positively correlated with COD (P〈 0.01), not significantly correlated with other environment factors (P〉0.05). There was no significant correlation between biomass of zoobenthos and environment factors. The density of zoobenthos in Beidagang Reservoir with NH4+-N was positively signif- icantly correlated (P〈0.05), not significantly correlated with other aquatic environment factors (P〉0.05). There was no significant correlation between biomass of zoobenthos and environment factors. The density of zoobenthos in Erwangzhuang Reser- voir with NO3-N was positively significantly correlated (P〈0.05), not significant cor- related with other aquatic environment factors (F〉0.05). The biomass of zoobenthos in Erwangzhuang Reservoir with NH4+-N was positively significantly correlated (P〈 0.05), not significant correlated with other aquatic environment factors (P〉0.05). [Conclusion] It is indicated that this three reservoirs were all eutrophied and polluted, and the eurephication extent change of water in three reservoirs is as follows: Beidagang reservoir〉Erwangzhuang reservoir〉Yuqiao reservoir. 展开更多
关键词 MACROBENTHOS Community structure Diversity index Water quality as-sessment Large reservoirs TIANJIN
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Comparison of roosting habitat characteristics of two sympatric pheasants during springtime at Dazhong Mountain,southwestern China 被引量:1
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作者 李宁 周伟 +2 位作者 李伟 张庆 王学荣 《Chinese Birds》 2010年第2期132-140,共9页
Hume's Pheasant(Syrmaticus humiae) and the Silver Pheasant(Lophura nycthemera) are two sympatric bird species at Dazhong Mountain of Yunnan Province,southwestern China.We investigated characteristics of roosting h... Hume's Pheasant(Syrmaticus humiae) and the Silver Pheasant(Lophura nycthemera) are two sympatric bird species at Dazhong Mountain of Yunnan Province,southwestern China.We investigated characteristics of roosting habitats of the two pheasants from February to April,2004 in this area.Multiple statistics,Matryoshka and a habitat classification-tree were used to analyze the selection of roosting habitats of these pheasants. The results of the habitat classification-tree indicated that several separations occurred in their macro and micro roosting habitats in the study area. The two pheasants had similar crucial requirements for and selection of ecological roosting factors,which allow them to live in the same macrohabitat.Competition between these two pheasants was avoided by separation of spatial elements,such as roosting trees and topographic characteristics.For safety strategy,Hume's Pheasant adopted primarily a way of'uneasily found habitat cover plus easy escape',while the Silver Pheasant employed a unique way of'uneasily found habitat cover'.For tactics of keeping warm,Hume's Pheasant selected mainly a method of'suitable vegetation supplemented with suitable topography',while the Silver Pheasant chose a unique man-ner of'suitable vegetation'. 展开更多
关键词 Syrmaticus humiae Lophura nycthemera SYMPATRY roosting habitat selection
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Home range and habitat composition of male Reeves's Pheasants in an agricultural-forest plantation landscape in central China:a preliminary report 被引量:2
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作者 徐基良 张正旺 《Chinese Birds》 2011年第1期53-58,共6页
We present a preliminary examination of the home range and habitat use of male Reeves's Pheasants (Syrmaticus reevesii) in an agricultural-forest plantation landscape on the Xianjuding Forest Farm, Hubei Province,... We present a preliminary examination of the home range and habitat use of male Reeves's Pheasants (Syrmaticus reevesii) in an agricultural-forest plantation landscape on the Xianjuding Forest Farm, Hubei Province, central China. Fieldwork was carried out from March to August in 2003. The home range of males averaged 33.17 ± 12.55 ha by MCP (minimum convex polygon) and 21.05 ± 5.61 ha by a 95% fixed kernel estimator. The core area by a 60% fixed kernel estimator was 3.92 ± 0.27 ha. We did not detect significant seasonal variations in home range, core area and movement in this farm. Chinese fir (Cunninghamia lanceolata) plantations were the dominant habitat type within the home ranges and core areas. The males used their habitat non-randomly in spring and summer, preferred the fir plantations and avoided broadleaf forests in both seasons. In addition, the males used shrubs less than were available in the spring. The vegetation structure of different habitats may be the leading factor affecting the use of the habitats. 展开更多
关键词 HABITAT MALE Reeves's Pheasant forest plantation
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Home range,population density,and habitat utilization of the Sichuan Jay (Perisoreus internigrans) 被引量:1
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作者 经宇 吕楠 +1 位作者 方昀 孙悦华 《Chinese Birds》 2011年第2期94-100,共7页
We assessed habitat preference and population status of the Sichuan Jay (Perisoreus internigrans),a poorly known Chinese endemic bird,at two sites (Zhuoni and Jiuzhaigou) in the Qinghai-Tibetan plateau between 2001 an... We assessed habitat preference and population status of the Sichuan Jay (Perisoreus internigrans),a poorly known Chinese endemic bird,at two sites (Zhuoni and Jiuzhaigou) in the Qinghai-Tibetan plateau between 2001 and 2004.Mean group size was 3.8 jays.Each group occupied a mean home range of 42.0 ha during the breeding season,and the mean internest distance was 2.7 km.These data indicated that the jays used less than ten percent of the available habitats and occurred at an overall density of only 0.6 jays per km2.Radio-tracked Sichuan Jays had a strong preference for mature montane coniferous forests and avoided areas dominated by shrubs,while the utilization of young conifers,grassland,and human residential habitat types did not differ significantly from the values expected from the home-range availabilities of these habitats generally. 展开更多
关键词 Sichuan Jay Qinghai-Tibetan plateau home range population density habitat utilization
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Impact of marsh changes on breeding cranes in Sanjiang Plain,northeastern China 被引量:1
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作者 江红星 钱法文 +5 位作者 刘春悦 李晓民 侯韵秋 张国钢 戴铭 刘冬平 《Chinese Birds》 2012年第3期165-179,共15页
In order to measure the impact of changes in the marsh on breeding Red-crowned Cranes (Grus japonensis) and White-naped Cranes (G.vipio) in the Sanjiang Plain,we conducted a complete crane súrvey in each of the s... In order to measure the impact of changes in the marsh on breeding Red-crowned Cranes (Grus japonensis) and White-naped Cranes (G.vipio) in the Sanjiang Plain,we conducted a complete crane súrvey in each of the summers of 2007 and 2008,and obtained information on the changes in its marsh through interpretation of satellite images in 1986,1995,2000 and 2005.A comparison between the 1984 and 2008 census shows that:1) the number of Red-crowned Cranes remained stable at about 300 birds,while the number of White-naped Cranes increased markedly; 2) the estimates of nests of Red-crowned cranes are close to the numbers of 1984,while approximately 90% of the nests of these two crane species were distributed over five national nature reserves (NNRs); 3) the two crane species became more concentrated in three regions,i.e.,the Fuyuan Delta,the middle reaches of the Naoli and Qixing rivers,and the Xingkai Lake wetlands,rather as formerly in six regions.The area of the marsh decreased by 45% within the 20-year period from 1986 to 2005.The major loss of the marsh area was in the form of a conversion to paddy fields and dry land,which can be primarily attributed to direct human activity under various economic and policy drivers.The disappearance of cranes in the Dulu and Abuqin rivers was induced by large-scale agricultural development.The fragmentation into and isolation of small areas of the marsh became increasingly more serious,which resulted in unsuitable condtions for crane breeding in small patches of the marsh.The number of cranes declined from 1984-1995 but had recovered remarkably by 2008,which may be due to theestablishment of a system of nature reserves,in place since 2000.The land ownership of the reserve plays a key role in maintaining the integrity of the wetland ecosystem,especially in Sanjiang,Honghe,Naolihe and Qixinghe NNRs,which together accommodated approximately 80% of the population of cranes.However,we did not discover any nests at all in the provincial and municipal reserves,which may be attributed to high human disturbances in these areas.In the end,we propose some recommendations on reserve management. 展开更多
关键词 Red-crowned Crane White-naped Crane BREEDING population size marsh change habitat loss Sanjiang Plain
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Bioturbation Effects of Benthic Fish on the Phosphorus Dynamic in Overlying Water of Paddy Field 被引量:3
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作者 孙刚 房岩 +1 位作者 汪爱武 严永菊 《Agricultural Science & Technology》 CAS 2010年第5期87-89,177,共4页
[Objective]The research aimed to investigate the bioturbation effects of benthic fish Misgurnus anguillicaudatus on phosphorus dynamic in overlying water of paddy field,as well as to explore the bioturbation mechanism... [Objective]The research aimed to investigate the bioturbation effects of benthic fish Misgurnus anguillicaudatus on phosphorus dynamic in overlying water of paddy field,as well as to explore the bioturbation mechanism.[Method]Based on simulation experiment,the phosphorus contents in overlying water were analyzed comparatively with and without Misgurnus anguillicaudatus by the using of ion chromatography and spectrophotometry.[Result]The concentrations of total phosphorus(TP),dissolved total phosphorus(DTP)and particular phosphorus(PP)in bioturbation group had no significant differences with those in control group in initial stage of experiment,and became significantly higher than control group in middle and late stages of experiment(P<0.05). The PP/TP ratios in bioturbation group were bigger than those in control group,the increase of TP concentration in bioturbation group was mainly due to the increase of PP. The ratios of dissolved inorganic phosphorus(DIP) to DTP (DIP/DTP) were significantly bigger than those in control group in middle and late stages of experiment(P<0.05).[Conclusion]The benthic fish had bioturbation effects on phosphorus in overlying water of paddy field,which increased the available phosphorus for rice growth. 展开更多
关键词 Benthic fish Paddy field Bioturbation Phosphorus Overlying water
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