Biological Diversity Survey And Ecological Status Evaluation Of Liao River Reserve In Shenyang

ShenYang Liao river reserve started at the ford store in changtu county of tieling,along the liao river river to the downstream Panjin hongmiao.Liao river reserve was incorporated into the national biodiversity pilot monitoring area by the ministry of environmental protection.Shenyang liao river reserve is its core component.The wetland habitat in the protected area is dominated by the wetland habitats.Influenced by the ecological environment,vegetation is mostly herbaceous,The land plant community occupies the advantage,the foreign invasion plant is more.Animal species are relatively rare,But there are relatively many state-level protection animals in birds.,which have high ecological and economic value.To better understand the biological resources of the area.In this paper,the species,community and part diversity index of flora and fauna in the region were analyzed,and the ecological evaluation was carried out by ahp.The details are as follows:(1)The plants in liao river reserve area of shenyang were investigated by means of a combination of field stationary sample and random sampling method.The plants in liao river reserve in shenyang were investigated by means of random check and sample square belt.A total of 295 species were identified from 64 families.Of the total 64 families,there are 4 of the total of 10 families with a total of 6.25% of the total family,of which the compositae and the gramineae have significant advantages.Six of the 10 or more subjects accounted for 9.38% of the total.Of all the 191 genera,there are 2 of the 10 species and only 1.04% of the total family,respectively,which are artemisia and polygonum.There are 33 woody plants,accounting for 11.19 % of all plant species,and the rest are woody vines.And have an advantage in all plant species.There are 259 species of herbaceous plants in liao river reserve,shenyang,which account for 87.79% of total plant species.The total of 245 species of terrestrial plants accounted for 83.05% of the total number of plants,occupying an absolute advantage.One of the national secondary protection plants is wild soybean.There are 14 kinds of invasive plants,such as grass,alfalfa,qiuying,and small flying pengpeng,which can pose a hazard to shenyang liao river ecosystem.(2)Shenyang liao river area of terrestrial vegetation,a total of three types(arbor,shrub and herb)respectively,seven layer tablets(tree layer,shrub layer,pills,hydrophobic plexus grass root grass layer,layer,roots sedge layer films,upright stalk type plants,rosette plant layer),There were 41 terrestrial plant communities,including 6 woody plants and 35 herbaceous plant communities.Three types of aquatic vegetation(have put here what type),three layer(layer's water plants,submerged plant layer pills,floating layer),10 aquatic plant communities(including the water plant community 7,floating plant community 2,submerged plant communities,1).Terrestrial plant community is more abundant than aquatic plant community.There are 10 types of plant community in shifu.The distribution of plant slices in each survey area is generally 2-3.(3)By using the common biological diversity index method,the index of the alpha and the diversity indexes of the survey areas in shenyang liao river reserve were measured.The results showed that: The Patrick richness index(176)in yubao stage in the index of alpha diversity Simpson(D)index 0.9788,Shannon-Wienner(H)index 4.4038 highest,plant community plant species and quantity is the most abundant,The uniformity index of the Pielou(Jsw)was 0.8945,and the distribution of plant community was the most uniform.The similarity index of liaozhong county was 0.2521,and the plant species were the most similar,with the highest of 0.9831 in the area,and the plant community was the largest by gradient.(4)Using field investigation method to investigate the animals in liao river area of shenyang,A total of 52 species of animal birds were identified,and there were 40 species of birds with national protection value,accounting for 76.92 percent of all birds.International endangered list 1 species,of which 3 species ?level protection,national ? level 8 species protection protection,countries show a list of 28 species of birds.There are 22 species of fish in 8 families,4 genera 4 genera of benthos and 5 species.Among them,there is a certain directive effect on environment of the fish and mussel,which can be classified as long-term monitoring species.In the eight survey areas,there are three kinds of different kinds of different kinds of different kinds: the most abundant fish species,the most abundant and the most homogeneous fish population in the area of shifu.There are 4 species and a small number of 3 families of amphibians and reptiles.Four species of mammals 4 genera.(5)The analytic hierarchy process is used to select 11 evaluation indexes and calculate the weight.The ecological status of 8 survey areas in shenyang liao river protection area was evaluated.Ford store 0.9245,stone buddhist temple 0.9043,yubao 0.8878,hongmiao 0.8776,manduhu 0.8406,tongjiang mouth 0.8184,three rivers down 0.7917,ma hu shan 0.6925,the ford store area ecological health is the best,The overall ecological health status index of the region was 0.8422,and the evaluation result of shenyang liao river reserve was good.