Holocene climate dynamics derived from pollen record of Jiulongchi wetland in Fanjing Mountain, southwest China

Distribution of Potential Harmful Trace Elements and Potential Ecological Risk in the Jiulongchi Wetland of Fanjing Mountain, Southwest China

“…The location and high elevation (~2570 m asl) have caused the specific environment: subtropical humid monsoon climate in mountain area with abundant water (average annual rainfall of 1100-2600 mm and more than 20 rivers) and heat (average annual temperature 6-17 • C), an altitudinal range of more than 2000 m and obvious vertical differentiation with five major altitudinal vegetation zones from evergreen broadleaf forest (<1300 m asl) to meadow (>2400 m asl), with abundant biodiversity with many endemic and relict species. The main soil types here are yellow soil and yellow-brown soil, and Fanjing Mountain is also the watershed of the Wujiang River Basin and Yuanjiang River Basin, and is affected by both the India Summer Monsoon and East Asian Summer Monsoon (Figure 1b) [10,11].…”

“…The Jiulongchi wetland belongs to the core zone of the property site where any construction and activities are forbidden except for authorized scientific research activities in the zone to protect the natural environment, and is therefore less affected by human activities. The sedimentary environment has been stable and continuous since Holocene [10]. As a water-land transitional natural ecosystem, it is sensitive to regional environment changes.…”