Spatial distribution patterns of soil total phosphorus influenced by climatic factors in China’s forest ecosystems
Open Access
- 8 March 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 11 (1), 5357
- https://doi.org/10.1038/s41598-021-84166-0
Abstract
Phosphorus (P) is an important element in terrestrial ecosystems and plays a critical role in soil quality and ecosystem productivity. Soil total P distributions have undergone large spatial changes as a result of centuries of climate change. It is necessary to study the characteristics of the horizontal and vertical distributions of soil total P and its influencing factors. In particular, the influence of climatic factors on the spatial distribution of soil total P in China’s forest ecosystems remain relatively unknown. Here, we conducted an intensive field investigation in different forest ecosystems in China to assess the effect of climatic factors on soil total P concentration and distribution. The results showed that soil total P concentration significantly decreased with increasing soil depth. The spatial distribution of soil total P increased with increasing latitude and elevation gradient but decreased with increasing longitude gradient. Random forest models and linear regression analyses showed that the explanation rate of bioclimatic factors and their relationship with soil total P concentration gradually decreased with increasing soil depths. Variance partitioning analysis demonstrated that the most important factor affecting soil total P distribution was the combined effect of temperature and precipitation factor, and the single effect of temperature factors had a higher explanation rate compare with the single effect of precipitation factors. This work provides a new farmework for the geographic distribution pattern of soil total P and the impact of climate variability on P distribution in forest ecosystems.Funding Information
- National Natural Science Foundation of China (4207103, 4207103, 4207103)
This publication has 53 references indexed in Scilit:
- Sustainable Phosphorus Measures: Strategies and Technologies for Achieving Phosphorus SecurityAgronomy, 2013
- Phosphorus biogeochemistry across a precipitation gradient in grasslands of central North AmericaJournal of Arid Environments, 2010
- A global model of carbon, nitrogen and phosphorus cycles for the terrestrial biosphereBiogeosciences (online), 2010
- The use of ‘altitude’ in ecological researchTrends in Ecology & Evolution, 2007
- Pools and distributions of soil phosphorus in ChinaGlobal Biogeochemical Cycles, 2005
- N : P ratios in terrestrial plants: variation and functional significanceNew Phytologist, 2004
- Water balance of tropical eucalypt plantations in south-eastern ChinaAgricultural and Forest Meteorology, 2004
- Regional carbon dynamics in monsoon Asia and its implications for the global carbon cycleGlobal and Planetary Change, 2003
- Comparative aspects of cycling of organic C, N, S and P through soil organic matterGeoderma, 1981
- The fate of phosphorus during pedogenesisGeoderma, 1976