G316工程建设对汉江国家湿地公园

Evaluation of the Impact of the Plant Diversity in the Hanjiang NationalWetland Park for G316 Engineering Construction

摘要:

摘要：在G316河谷段改线工程所途径的汉江国家湿地公园沿线设置72个样方，进行植物多样性调查，结果表明：工程建设区共出现有维管束植物26科40属59种，有11种植物群系类型，植物种类以杨树、狗牙根等为优势，群落植物多样性均偏低；预计工程建设将使301 t植物生物量受到损失；由于工程建设占用土地面积较小，不会导致物种灭绝和影响物种的正常繁殖生长，植物多样性的降低也极为有限。

Abstract:

Abstracts:The plant diversity was analyzed based on investigation of 72 plots established in the Hanjiang National Wetland Park where G316 changed the line straight engineering area.The results showed that there were 59 species of vascular plants, which belonged to 40 genera in 26 families,there were 11 kinds of plant formation in the construction area.The species of Populus and Cynodon dactylon took a more dominant position in the area.The diversity analysis of plant communities indicated that diversity index was low. 301 tons plant biomass would be loss for engineering construction.But the project would not lead to the extinction of species and influence the normal breeding species, decrease of plant diversity was limited, since the project occupies small land area.