The Living Aquatic Resources of Poyang Lake
　　１.Phytoplankton, the simplest primary producer in the body of Poyang Lake, is various, numerous and widely distributed. It is very important to the fishery of Poyang Lake. It is identified into 154 genera, affiliated with 8 phyla or 54 families. Of which chlorophyta has 78 genera, taking up 51% of the total and ranking no.1; and in the next place is bacillariophyta of 31 genera, accounting for 21%. The rest are cyanophyta, pyrrophyta of 3 genera, chrysophyta of 6 genera, xanthophyta of 4 genera, and euglenophyta of 6 genera, together taking up 13% of the total.
　　The varieties of zooplankton in Poyang Lake are mostly protozoan, rotifera, cladocerans and copepoda. Besides, peach blossom acaleph with an umbrella diameter of 20mm, a coelenterate, seasonally largely comes forth in the three successive years of 1984,1984 and 1986, which disserved young fish
　　Aquatic vascular plant, the primary producer in a lake, is one of the import components of aquatic organism in Poyang Lake. It is identified that there are 102 species of aquatic vascular plants, belonging to 38 families in Poyang Lake. The area of vegetation is 2,262km2 in Poyang Lake area. The total area of the Lake is about 2,797km2 in flood period, calculated according to the mean water level of 17.53m in July of a series of 41-year records, of which the aquatic vegetation is account for 80.8%.
　　２.Fish is the most important industrial aquatic animals in Poyang Lake. According to data, there are 122 species of fish, belonging to 21 families in Poyang Lake. According to the analysis of components of fish, its basic component is cyprinid fish and most of them are industrial fish. The fish catch of is fluctuated from 20 ~ 40 thousand tons in Poyang Lake in many years. The dominant population of fish of Poyang Lake is carp and crucian
　　Among aquatic animals in Poyang Lake, finless porpoise has its distribution，and also white fin porpoise. They are cherished aquatic animals, respectively belonging to the 2nd class and 1st class of conserved animals of the nation. Finless porpoise has 200 ~ 300 heads in Poyang Lake, mostly distributed in the main channel from Hukou to Kangshan.

　　　 Biological Resources of the Lake Beach and Grassland
　　1. Plant Resources
　　In the outcropped lake beach and bottomland grows azonal meadow vegetation at low water in every year, of which 19 species are popular, categorized into 28 families. The best familiars of all are plants of graminaceae, cyperaceae, polygonaceae and anthoclinium. Different kinds of soils and plant population have formed because of the different altitude of beach and bottomland, and various water and heat conditions. The dominant plant population on the lake beach and outcropped bottomland of Poyang Lake area are consisted of moss association, Phragmites communis association and Miscanthus sacchariflorus association

　　2. Beast Resources
　　The beast of Poyang Lake is of typical feature of subtropical hilly and plain distribution. Small carnivore and herbivore represent its composition. The vegetation of the Lake area is not good, lack of trees, so its beast resources is not as abundant as birds. Beast has only 13 Species of 9 families, among which the popular beasts are oriental bat, yellow weasel, badger, south china rabbit, ocelot and muskrat.

　　　 Biological Resources in Mountain
　　1. Forest vegetation of hilly Area. The mild climate and good natural conditions are suitable for the growth of forest. The sorts of forest vegetation are various, consisted of many species or families. 2,403 species have been identified so far. The zonal vegetation of hilly area in Poyang Lake region is mainly consisted of evergreen broad-leaved forest, whose flora dominates with evergreen species of beech family, and the others are species or genera of laurel family, camellia family, magnolia family, and holly family, mixed with very few deciduous broad -leaved forest component of the flora of warm temperate zone.
　　2. Animal resources of the hilly country. There are 268 species of wild animals in the hilly country of Poyang Lake area in total (including reptiles, birds and beast). Of which there are 177 species of 35 families of birds, and 43 species of 16 families of beasts, and 48 species of 10 families of reptiles. The component of fauna is characterized with animals of subtropical hilly country and plain.

　　　 Kingdom of Cherished Birds
　　There are 332 species of birds in the wetland of Poyang Lake. Among them, 10 species, such as Siberian White Crane, Oriental White Stork, Black Stork, Great Bustard, Chinese Merganser，Relict Gull，White-tailed Sea Eagle，Imperial Eagle and Golden Eagle, are listed in the 1st class conserved animal names by Chinese government. 44 species, such as White-napped Crane, Common Crane and swan, are among the 2nd class. Migrant birds usually migrate over national boundaries. Quite a great deal of the migrants in Poyang Lake is internationally conserved, of which 153 species of birds are protected according to the agreement of migrant conservation between China and Japan, accounting for 67.4% of the total conserved migrants of 227 species regulated by this agreement; 49 species are protected according to the agreement of migrant conservation between China and Australia, accounting for 60.5% of the total conserved migrants of 81 species regulated by this agreement; and 13 species are listed, by the international association for birds protection, into the internationally endangered birds, most of which are water fouls such as Siberian White Crane, Oriental White Stork, Hooded Crane, White-napped Crane, Common Crane, Black Stork, Great Bustard, White-fronted Goose, European Spoonbill, and little swan. The total number of the conserved birds is up to 40 thousand plumes, Mallard above 150 thousand plumes, swan goose above 30 thousand plumes, wintering water birds above 300 thousand plumes, above 600 plumes at the utmost. So someone wrote that, how many birds are there in Poyang Lake? They blocks sunlight and clouds when flying; lake grass disappears when they fall down. It is the real picture of the spectacular view of wintering waterfowls in Poyang Lake. The wintering waterfowls is a beautiful scenery at Poyang Lake and is of high value of conservation and singht-seeing.
　　Migrant birds here are well-known in the world, so many people came to enjoy this sight from thousands of miles away. Prince Philip of British Kingdom, Prince Henrich of Danmark as well as famous experts at home and abroad have come to observe cranes by its reputation.