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Birds Status And Resource Conservation Strategy In Hangxhou Bay

Posted on:2011-12-29Degree:MasterType:Thesis
Country:ChinaCandidate:Y L XuFull Text:PDF
GTID:2210330368979298Subject:Agricultural extension
Abstract/Summary:PDF Full Text Request
Birds of Hangzhou bay wetland had been studied in the time frames of 2009(10-19 of March,21-29 of April,14-30 of July,14 October-3 November). Six habitat types (beach, breed pond/watercourse, reed marsh, scirpus mariqueter zone, grassplot and woodland) were representatively selected in the coast wetland.135 species birds were recorded, belonging to 37 families 13 orders, in which 79 paratactic,39 oriental and 17 widespread species are in Hangzhou bay, making up 58.5%,28.9%and 12.6%of the total number of species respectively.43 winter migrants,34 passing migrants,33 residents,22 summer migrants and 3 vagrants were in the area, making up 31.9%,25.2%,24.4%,16.3%and 5.9%of the total species number respectively.Water birds were more than other birds in the wetland with 66 species 13 families 8 orders, making up 48.9% of the avian species number. The order of the most species number was Passeriformes with 56 species, making up 41.5%;the second was Charadriformes with 33 species,24.4%;the third was Ciconiformes with 11 species,8.15%.Seen from habitats, beach had 5 orders and 37 species, making up 27.41%;reed marsh had 5 orders and 31 species,22.96%; scirpus mariqueter zone had 2 orders and 3 species,2.22%; breed pond/watercourse had 8 orders and 46 species,34.07%; grassplot had 4 orders and 17 species, 12.59%; woodland had 7 orders and 51 species,37.78%.1 species(Larus relictus) was the first-class protected wild animals in China, making up 0.74%; 7 species(Pelecanus crispus, Cygnus columbianns, Numenius minutus, Buteo buteo, Circus spilonotus, Falco tinnunculus and Centropus bengalensis) were the second-class protected wild animals in China, 4.44%. Listed at IUCN, Larus relictus and Pelecanus crispus were under VU, Limosa limosa and Paradoxornis heudei were under NT.69 (such as Numenius phaeopus, Numenius madagascariensis, Pluvialis squatarola and so on) species were listed at the migrant conservation convention of China and Japan, making up 51.1%.37 species (example for, Charadrius dubius, Hydrophasianus chirurgus, Chlidonias leucopterus) were listed at the migrant conservation convention of China and Australia, making up 27.41%.Dominant species had 8(Egretta garzetta, Nycticorax nycticorax, Charadrius alexandrinus, Charadrius mongolus, Charadrius leschenaultia, Calidris ruficollis, Calidris alpine and Passer montanus), making up 9.24%; frequent species had 19,14.1%;seldom species had 54,40%;rare species had 54,40%. Analyzed from habitats, the most richness birds was in beach, which had 3 dominant species,7 frequent species,9 seldom species and 18 rare species, and the least richness birds were in grassplot, which had 2 seldom species and 15 rare species. According to water bird composition, the most species number was in the breed pond/watercourse with 40 species, making up 29.63%;the second was in the beach with 37 species,27.41%;in turn were woodland (8 species,5.93%),reed marsh (3 species,2.22%), scirpus mariqueter zone (3 species,2.22%) and grassplot(1 species,0.74%). The problems in Hangzhou Bay wetland were found that too swift reclamation and utilization, and severe pollution resulted in the decrease of ecosystem quality and the low synthesis benefit; moreover, the absence of basic research and long period orientation survey, and the disordered management lead to the impact of the mass foreign population.The strategies were suggested that the basic research should be strengthened, the wetland management organization be perfect, the wetland reserve of Hangzhou Bay be quickly builted, the wetland tour be scientficly developed, the education be strengthened for advancing the public understanding, and the law power be reinforced for the convoy to use continuable the wetland resource in Hangzhou Bay.
Keywords/Search Tags:Hangzhou Bay, Habitat, Wetland birds, Conservation strategy, Resource utilization
PDF Full Text Request
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