Journal
FORESTS
Volume 13, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/f13050775
Keywords
evapotranspiration; environmental factors; FLUXNET; net primary productivity
Categories
Funding
- Baishanzu National Park scientific research project [2021ZDLY01]
- National Natural Science Foundation of China [42007182]
Ask authors/readers for more resources
Inherent water-use efficiency (IWUE) is an important parameter connecting the carbon and water cycles. This study found significant differences in IWUE among different forest ecosystems, and it was positively correlated with temperature and solar radiation. Temperature and solar radiation were identified as the main factors controlling IWUE in forest ecosystems.
Inherent water-use efficiency (IWUE) is a vital parameter connecting the carbon and water cycles. However, the factors influencing the IWUE in different forest ecosystems are still a subject of debate. In this work, FLUXNET platform measurements of 67 forest sites were used to detect trends of the IWUE of four forest ecosystems, namely deciduous broadleaf forests (DBF), evergreen broadleaf forests (EBF), needle-leaf forests (ENF), and mixed forests (MF). The IWUE differed significantly among different forest ecosystems and positively correlated with temperature and solar radiation. The IWUE of EBF was the highest at 32.02 g center dot C center dot Kg center dot H2O-1. The values of DBF and MF were similar and higher than that of ENF. With increasing latitude, the IWUE increased first and then decreased, with a maximum of 35 degrees N. The IWUE of EBF was negatively correlated with precipitation and leaf area index. Temperature and solar radiation were the main factors controlling the IWUE of forest ecosystems, whereas precipitation was the major factor controlling the inter-annual variation in the Delta IWUE of forest ecosystems. Our results provide a scientific basis for the study of forest carbon sinks, forest eco-hydrological processes, and forest ecosystem responses to global climatic changes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available