Qiangqiang Sun

Dr. Qiangqiang Sun

College of Land Science and Technology, China Agricultural University, Beijing 100193, China
orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 August 2019 in Environmental Science & Technology
Verified
Journal Article
Closed access
PZPing Zhang
Ping Zhang
CYChencheng Yuan
Chencheng Yuan
QSQiangqiang Sun
Qiangqiang Sun
ALAixia Liu
Aixia Liu
SYShucheng You
Shucheng You
FLFei Lun
Fei Lun

14 March 2024 in Earth System Science Data
Verified
Journal Article
Open access
PDF file
QSQiangqiang Sun
Qiangqiang Sun
PZPing Zhang
Ping Zhang
XJXin Jiao
Xin Jiao
XLXin Lin
Xin Lin
WDWenkai Duan
Wenkai Duan
DSDanfeng Sun
Danfeng Sun
Multifaceted regime shifts of Earth's surface are ongoing dramatically and – in turn – considerably alter the global carbon budget, energy balance and biogeochemical cycles. Sustainably managing terrestrial ecosystems necessitates a deeper comprehension of the diverse and dynamic nature of multicomponent information within these environments. However, comprehensive records of global-scale fractional vegetation and soil information that encompass these structural and functional complexities remain limited. Here, we provide a globally comprehensive record of monthly vegetation and soil fractions during the period 2001–2022 using a spatiotemporally adaptive spectral mixture analysis framework. This product is designed to continuously represent Earth's terrestrial surface as a percentage of five physically meaningful vegetation and soil endmembers, including photosynthetic vegetation (PV), nonphotosynthetic vegetation (NPV), bare soil (BS), ice or snow (IS) and dark surface (DA), with high accuracy and low uncertainty compared to the previous vegetation index and vegetation continuous-field product as well as traditional fully constrained linear spectral mixture models. We also adopt nonparametric seasonal Mann–Kendall tested fractional dynamics to identify shifts based on interactive changes in these fractions. Our results – superior to previous portrayals of the greening planet – not only report a +9.35 × 105 km2 change in photosynthetic vegetation, but also explore decreases in nonphotosynthetic vegetation (−2.19 × 105 km2), bare soil (−5.14 × 105 km2) and dark surfaces (−2.27 × 105 km2). In addition, interactive changes in these fractions yield multifaceted regime shifts with important implications, such as a simultaneous increase in PV and NPV in central and southwestern China during afforestation activities, an increase in PV in cropland of China and India due to intensive agricultural development, a decrease in PV and an increase in BS in tropical zones resulting from deforestation. These advantages emphasize that our dataset provides locally relevant information on multifaceted regime shifts at the required scale, enabling scalable modeling and effective governance of future terrestrial ecosystems. The data about five fractional surface vegetation and soil components are available in the Science Data Bank (https://doi.org/10.57760/sciencedb.13287, Sun and Sun, 2023).

1 August 2020 in Journal of Environmental Sciences
Verified
Journal Article
Closed access
JZJingwei Zhang
Jingwei Zhang
YGYitian Guo
Yitian Guo
YQYu Qu
Yu Qu
YCYong Chen
Yong Chen
RYRuipeng Yu
Ruipeng Yu
Junling AnJunling An
Junling An

1 January 2020 in Remote Sensing of Environment
Verified
Journal Article
Closed access
QSQiangqiang Sun
Qiangqiang Sun
PZPing Zhang
Ping Zhang
HWHai Wei
Hai Wei
ALAixia Liu
Aixia Liu
SYShucheng You
Shucheng You
DSDanfeng Sun
Danfeng Sun

1 November 2020 in Landscape and Urban Planning
Verified
Journal Article
Closed access
PZPing Zhang
Ping Zhang
DKDivyani Kohli
Divyani Kohli
QSQiangqiang Sun
Qiangqiang Sun
YZYongxiang Zhang
Yongxiang Zhang
SLShunxi Liu
Shunxi Liu
DSDanfeng Sun
Danfeng Sun

1 December 2018 in International Journal of Applied Earth Observation and Geoinformation
Verified
Journal Article
Closed access
QSQiangqiang Sun
Qiangqiang Sun
PZPing Zhang
Ping Zhang
DSDanfeng Sun
Danfeng Sun
ALAixia Liu
Aixia Liu
JDJianwang Dai
Jianwang Dai