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In order to investigate the status of birds in Dunhuang West Lake, West Lake wetland management decision to provide scientific data. Of the spring of 2007 to the spring of 2008, the first time the number of bird species and habitat conditions of the West Lake area 18 wetlands surveyed. Completed three major research: (1) the various wetlands internal landscape structure survey analysis; (2) West Lake area bird diversity survey; (3) evaluation of the importance of wetland bird habitat. Among them, the first study by field observation of the various wetlands internal landscape characterization, refining the basic landscape composition, sketch shows the results; second study, by direct counting method and no distance estimation line transect bird species and the number of investigations . Index of bird diversity measure using the Avifauna analysis and community; third study uses fuzzy comprehensive evaluation method to judge. Study the following findings and conclusions: (1) within the wetland divided landscape patch freshwater meadow marsh, reed swamp, salt marsh, saline land and coastal shrub forest belt, etc., and ribbon landscape and cyclic landscape two structural models. Wetland bird habitats divided into freshwater meadow marshes, the reed swamp waters, salt marshes open water, coastal mudflats, irrigation woodland the water reservoir Ming, high salinity, salt marsh and reed community habitats, including coastal mudflats, reed swamp waters, salt marshes of Ming the water and the reservoir open water habitat species richness and similarity level higher. The surface of the water or reservoir of salt marsh Ming Ming the surface of the water, forming a complementary function best combination of habitats with reed swamp waters and coastal mudflats. (2) the area of ??the study investigated a total of 119 kinds of birds, belonging to 16 orders, 36 families, 73 genera. Among them, China's endemic bird species for white-tailed ground the crow (Podoces biddulphi); Gansu Province, a new record, Sarus Grebe (Podiceps grisegena), and spot back Pochard (Aythya marila), long-tailed ducks (Clangula hyemalis), Ruff (Philomachus pugnax), white-tailed crow and kittiwakes (Rissa tridactyla). As a total of 68 species of protected birds, accounting for about 57.1% of the total number of species which national Ⅰ Protection of Birds, the black stork (ciconia nigra); national II level protection 18 kinds of birds, such as white the spoonbills (platalea leucorodia) and whooper swans (Cygnus cygnus); listed on CITES Appendix (2007) I 1, is the peregrine falcon (Falco peregrinus), Appendix Ⅱ 16 kinds, such as E (Pandionhaliaetus) and Saker Falcon birds of the Falconiformes (FALCONIFORMES) of the (Falco cherrug); been included in the \\West Lake area about 1/4 of the Gansu Province, the number of bird species bird species, accounting for 87.5% of the the Hexi corridor geographic Province species, high species richness. (3) Section, the most duck family (Anatidae) species, 21 species; hawk family (Accipitridae), and Thrush Division (Turdidae) are eight kinds; plovers Branch (Charadriidae), and snipe Division (Scolopacidae), each 7; only 1 Division had a total of 15 subjects, 41.7% of the total number of subjects. (4) West Lake area birds F index value of 16.14 G index value of 4.10, the GF index value of 0.75. The largest contribution Division F index value for the duck family; contribution the largest genus Duck genera (Anas) G index value. (5) the avifauna composition of the study area is mainly for the Gubei type and Jeonbuk type, a total of 74.79%; followed in subtypes; sedentary traveling birds, 66 species; seven kinds of winter birds; resident birds 26 kinds; summer migratory birds of 32 species. (6) 18 wetlands Chinese Communists survey to 107 species of birds, including spring distribution of 77 species, 3595; 65 kinds of autumn 1203. 70.1% of the birds are narrow distribution; wide distribution of four kinds of birds were mallards (Anasplatyrhynchos), Ruddy Shelduck (Tadorna ferruginea), the Alice nasal sheldrake (Tadorna tadorna) and Red billed Pochard (Rhodonessa rufina) . Most birds are concentrated in seven wetlands, including the type and quantity of the Shannon-Wiener index value of the highest wetland Ottawa depression pool; followed by amniotic fluid Haizi, South Lake, North Park Lake, River positions City and pony fans the rabbit; birds Yanchiwan situation better, but lower levels of diversity. Each wet spring than the fall of the Shannon-Wiener index value addition to the new workers dam wetlands. (7) individual orders of magnitude more 1 to 4, the number of bird species, spring 29, fall 34; each level in the order of magnitude higher species more than 1 or 2. Bird populations concentrated in a small number of species. Spring the largest number of black-winged Stilt (Himantopus himantopus), 73.1% of individuals gathered wetlands Yanchiwan. A larger number of Tufted Duck (Aythya fuligula), the red mouth Pochard, Wigeon (Anas penelope), etc.; fall mallards largest number, 382. Top chicken bone (Fulica atra), 70 similar number of Great Egret (Egretta alba), the text to be bird (Panurus biarmicus). (8) West Lake area birds belonging the Natatores, songbirds, wading birds, birds of prey, climbing six ecological groups of birds and terrestrial birds, which Natatores types up 41; followed for songbirds 36 kinds. Mainly distributed in the salt marsh the Ming the water and the reservoir open water habitats Natatores distributed in high salinity salt marsh; waders are mainly distributed in the coastal mudflats and reed swamp waters; the Raptor activities broader; mainly distributed in the other three groups freshwater meadow marshes, shrub woodland and reed biotopes. (9) According to the results of fuzzy comprehensive evaluation, propose two management program: a to invest equal management level in spring and autumn, and spring and fall according to the respective sorting and grading results further subdivided management level; another The difference between the two quarters of the importance of wetlands, the overall classification management of wetlands and fall. Based on the first scenario, the provisions of the importance of values ??in the 0.2-1 interval wetlands implementation of two management-level management, the importance of values ??in the 0-0.2 range of wet Spring a wetland management Ottawa depression pool, Yanchi Bay the amniotic fluid haizi southern Great Lakes, including two wetland management Danghe Reservoir, baidunzi Bay, Majuan Bay South Park Lake. On a management level, the implementation of the provisions of the importance of values ??in the the 0.4-1 interval of Ottawa depression pool times times two management level management, implemented in the 0.2-0.4 interval Yanchiwan the amniotic fluid haizi southern Great Lakes. Wetland according to sort the results on the two management level, the difference between the input level of each wetland. Fall management level further classified the same as the spring. Importance of values ??based on the second scheme, the provisions on the implementation of a management of wetlands in the 0.4-1 range, and the importance of the implementation of the two values ??in the 0-0.4 range of wet management. A managed wetlands, only Ottawa depression pool, according to the importance of value, the spring than in the fall of Ottawa depression pool put into a higher level of management. Spring and autumn wetland addition to Ottawa depression pool outside the implementation of the two management, and provides for the importance of values ??in the 0.2-0.4 range of wet times a management, implementation of the two management levels including the spring Yanchiwan amniotic fluid Haizi South three wetlands of the Great Lakes, as well as the fall of the amniotic fluid Haizi wetlands; importance value of wetlands in the 0-0.2 range times two management in the implementation of the two management levels, including the spring party Creek Reservoir, baidunzi Bay, Majuan Bay South Park Lake four wetlands, as well as six the autumn party Creek Reservoir, Yanchiwan, baidunzi Bay, the Maquan Bay, South Lake and South Park Lake wetlands. Of two wetland management can also sort the results further divided management priorities and severity.
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