Preliminary Investigation on the Population Status of Rhodendron tsaii in Dashanbao Black-necked Crane Nature Reserve,Yunnan
Rhodendron tsaii was recently included in the List of Yunnan Protected Plant Species with Extremely Small Population (2021),the Yunnan Dashanbao Black-necked Crane National Nature Reserve was a new distribution record. In order to understand the population and dis-tribution status of Rhododendron tsaii in the reserve,methods such as visits,field surveys and area measurements were used from March to Au-gust 2022 to preliminarily investigate the distribution and population status of Rhododendron tsaii in the area.The result showed that Rhodendron tsaii was found in four specific areas within the Hexing Village range.The population distribution area was 3022.24 m2.The population consists of 550 clusters,including 223 healthy clusters,207 sub-healthy clusters,120 unhealthy clusters,and 2 single young trees. The low seedling rate,narrow population area,rodent infestation,drought,etc. were the main threat factors to the reproduction of Rhodendron tsaii.Due to its narrow spatial distribution and vulnerability to human interference,urgent protective measures were needed to ensure the survival of Rhoden-dron tsaii.Existing literature data showed that the Yunnan Dashanbao Black-necked Crane National Nature Reserve was the largest known dis-tribution area of Rhodendron tsaii population. Based on the above results,it was suggested that relevant departments take on-site and near-site protection measures,establish a Rhodendron tsaii conservation demonstration area in the reserve,and strictly protect it to restore its population.
Minimal populationRhodendron tsaiiQuantity distributionConservation demonstration area
万方数据
维普
