Publications by authors named "Ying Qiang Song"
Rapid acquisition of the spatial distribution of soil nutrients holds great implications for farmland soil productivity safety, food security and agricultural management. To this end, we collected 1297 soil samples and measured the content of soil total nitrogen (TN), soil available phosphorus (AP) and soil available potassium (AK) in Zengcheng, north of the Pearl River Delta, China. Hyperspectral remote sensing images (115 bands) of the Chinese Environmental 1A satellite were used as auxiliary variables and dimensionality reduction was performed using Pearson correlation analysis and principal component analysis.
View Article and Find Full Text PDF[Using sequential indicator simulation method to define risk areas of soil heavy metals in farmland.].
Ying Yong Sheng Tai Xue Bao
May 2018
Article Synopsis
- Heavy metals in soil pose serious health and environmental risks, making it essential to identify risk areas in farmland for better protection and control.
- A study in Zengcheng District, Guangzhou, analyzed 204 soil samples for seven heavy metals using the sequential indicator simulation method (SISIM) to improve accuracy and address data issues compared to traditional methods.
- Results indicated no pollution in farmland, but moderate ecological risks in the southern area due to human activities, demonstrating an effective new approach for assessing heavy metal risks in unevenly sampled areas.