Analysis on impact of climate changes over the past twenty years on NPP in China

Zhiqiang Gao; Jiyuan Liu; Mingkui Cao; Qi Wang; Wei Gao; James Slusser; Xiaoling Pan

doi:10.1117/12.563614

9 November 2004 Analysis on impact of climate changes over the past twenty years on NPP in China

Zhiqiang Gao, Jiyuan Liu, Mingkui Cao, Qi Wang, Wei Gao, James Slusser, Xiaoling Pan

Proceedings Volume 5544, Remote Sensing and Modeling of Ecosystems for Sustainability; (2004) https://doi.org/10.1117/12.563614
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

In the past 20 years, great changes have taken place in the climate of China, which have exerted an important impact on the productivity and carbon cycle of terrestrial ecosystem. This study uses a process-based ecosystem model driven with the land use data based on remote-sensing observation and climate data with high space-time resolution to estimate the impact of climate changes on net primary productivity (NPP) in China. The results show that over the past 20 years, due to climate warming (with an average annual increase in temperature of 0.055 ) and an increase in precipitation (with an annual increase of 0.65 mm), NPP has obviously increased in China (with an increase of 11 TgC). Seasonal temperature and precipitation have greatly impacted the temporal and spatial variation of NPP in China. NPP of vegetation is obviously impacted by seasonal precipitation change in forest covered areas in China. The impact of seasonal precipitation on NPP in semiarid and semi-humid areas is more obvious than that in humid and arid areas in China. The growth of vegetation is remarkably impacted by seasonal temperature changes in about 70% of the regions in China. The correlation between NPP and seasonal temperature change is obvious.

Citation Download Citation

Zhiqiang Gao, Jiyuan Liu, Mingkui Cao, Qi Wang, Wei Gao, James Slusser, and Xiaoling Pan "Analysis on impact of climate changes over the past twenty years on NPP in China", Proc. SPIE 5544, Remote Sensing and Modeling of Ecosystems for Sustainability, (9 November 2004); https://doi.org/10.1117/12.563614

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Climatology

Climate change

Data modeling

Vegetation

Temperature metrology

Carbon

Ecosystems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years