Patents by Inventor Qinghuan Qian

Qinghuan Qian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for estimating soil organic carbon in karst area
    Patent number: 11499956
    Abstract: The present invention discloses a method for estimating soil organic carbon in karst area, including: step 1, establishing a soil organic carbon estimation model for the karst area; step 2, revising a soil depth; step 3, subtracting an exposure rate of bedrock for different types of soil and positive and negative terrains; step 4, revising a soil organic carbon density estimation formula for different types of soil and positive and negative terrains; and step 5, revising a soil organic carbon storage estimation method. This invention has solved the problem of overestimating soil organic carbon pool by existing methods, has improved the calculation accuracy, and has promoted the research process of soil carbon cycle in karst area.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: November 15, 2022
    Assignee: Institute of Geochemistry, Chinese Academy of Sciences
    Inventors: Xiaoyong Bai, Shijie Wang, Luhua Wu, Miao Zhou, Fei Chen, Huiwen Li, Yue Cao, Jianyong Xiao, Qinghuan Qian, Cheng Zeng, Qin Li, Jinfeng Wang, Yichao Tian, Guangjie Luo, Yujie Yang, Chaojun Li, Yuanhong Deng, Zeyin Hu
  • Method for Estimating Soil Organic Carbon in Karst Area
    Publication number: 20200408731
    Abstract: The present invention discloses a method for estimating soil organic carbon in karst area, including: step 1, establishing a soil organic carbon estimation model for the karst area; step 2, revising a soil depth; step 3, subtracting an exposure rate of bedrock for different types of soil and positive and negative terrains; step 4, revising a soil organic carbon density estimation formula for different types of soil and positive and negative terrains; and step 5, revising a soil organic carbon storage estimation method. This invention has solved the problem of overestimating soil organic carbon pool by existing methods, has improved the calculation accuracy, and has promoted the research process of soil carbon cycle in karst area.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 31, 2020
    Inventors: Xiaoyong Bai, Shijie Wang, Luhua Wu, Miao Zhou, Fei Chen, Huiwen Li, Yue Cao, Jianyong Xiao, Qinghuan Qian, Cheng Zeng, Qin Li, Jinfeng Wang, Yichao Tian, Guangjie Luo, Yujie Yang, Chaojun Li, Yuanhong Deng, Zeyin Hu