Abstract
Based on route and sample-plot survey, plant resources of Liangzi Lake Wetland Nature Reserve were investigated. The result showed that there were 503 species of spermatophyte belonging to 296 genera of 86 families. There were 5 species under national first and second level protection. The dominant families of spermatophyte contained 20 species and above. The dominant genera of spermatophyte contained 4 species and below. The 86 families of spermatophyte can be divided into 7 distribution types and 4 variants. Tropic distribution type was dominant, accounting for 70.83% in total (excluding cosmopolitans). The 296 genera of spermatophyte can be divided into 14 distribution types and 9 variants. Temperate elements were a little more than tropical elements, accounting for 50.84% and 49.16% in total (excluding cosmopolitans) respectively. Reserve had 3 Chinese endemic genera, reflecting certain ancient and relict. The purpose of the research is to provide background information and scientific basis for the protection, construction, management and rational utilization of plant resources in the reserve.
Highlights
The plant resources of Liangzi Lake Wetland Nature Reserve were investigated by using the methods of route and sample-plot
There were 503 species of spermatophyte in Liangzi Lake Wetland Nature Reserve belonging to 296 genera and 86 families
There were 296 genera of spermatophyte in Liangzi Lake Wetland Nature Reserve, which were divided into four grades (Table 3): large genus, medium genus (5-9 species), oligarchic genus (2-4 species) and single genus (1 species)
Summary
Liangzi Lake Wetland Nature Reserve is located in the southeast of Hubei Province, on the south bank of the middle reaches of the Yangtze River. It borders Daye in the east, Xianning in the south and Jiangxia in the west. The rain bearing area is 208500 hectares, and the annual average water level is 17.81m. The soil can be divided into four types and 11 sub types: red soil, purple soil, tidal soil and paddy soil. There are 3 soil types and 6 subclasses in dry land soil, 1 soil type and 5 subclasses in paddy soil [2,3]
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