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Dynamic Changes and Driving Mechanisms of Net Primary Production (NPP) in a Semi-Arid Region of China

Author

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  • Dandan Zhao

    (School of Geographical Science and Tourism, Jilin Normal University, Siping 136000, China)

  • Wenyue Jia

    (School of Geographical Science and Tourism, Jilin Normal University, Siping 136000, China)

  • Jiping Liu

    (School of Geographical Science and Tourism, Jilin Normal University, Siping 136000, China)

Abstract

The objective of this study is to analyze the spatiotemporal dynamics of net primary production (NPP) change combined with land use and to further explore the driving factors of NPP change, allowing us to provide a scientific reference point for optimizing the land-use structure and improving regional carbon sequestration capacity. The average annual NPP ranged from 200 to 300 gC/m 2 •a in the period of 2001–2020 in our study area. We used trend analysis and linear regression analysis to explore the spatial and temporal dynamic changes in annual NPP and analyzed the driving mechanism in a semiarid region (western Jilin Province) of China in the period of 2001–2020. The results showed that NPP presented a trend of fluctuating growth, and the spatial distribution of NPP showed that NPP values of cultivated land, forest and grassland were generally higher than those of other land-use types. The high value in the southeastern region and low value in the northwestern region were identified because there were large areas of cultivated land distributed in the southeastern part of the study area in the period of 2001–2020. The main driving factors that affected NPP were annual precipitation, CO 2 emissions, GDP and hours of sunshine. NPP was positively correlated with annual precipitation, CO 2 emissions and GDP, and it had a significant negative correlation with hours of sunshine. Our study provides important support for research into land-use structure and improvements to the regional carbon sequestration capacity, making an important contribution to regional sustainable development.

Suggested Citation

  • Dandan Zhao & Wenyue Jia & Jiping Liu, 2023. "Dynamic Changes and Driving Mechanisms of Net Primary Production (NPP) in a Semi-Arid Region of China," Sustainability, MDPI, vol. 15(15), pages 1-12, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:15:p:11829-:d:1208335
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    References listed on IDEAS

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    1. Zilang Cheng & Yanjun Zhang & Lingzhi Wang & Lanyi Wei & Xuying Wu, 2022. "An Analysis of Land-Use Conflict Potential Based on the Perspective of Production–Living–Ecological Function," Sustainability, MDPI, vol. 14(10), pages 1-20, May.
    2. Yu, Rui, 2020. "An improved estimation of net primary productivity of grassland in the Qinghai-Tibet region using light use efficiency with vegetation photosynthesis model," Ecological Modelling, Elsevier, vol. 431(C).
    3. Guodong Sun & Mu Mu, 2013. "Understanding variations and seasonal characteristics of net primary production under two types of climate change scenarios in China using the LPJ model," Climatic Change, Springer, vol. 120(4), pages 755-769, October.
    4. Shuhui Zhang & Fuquan Li & Yuke Zhou & Ziyuan Hu & Ruixin Zhang & Xiaoyu Xiang & Yali Zhang, 2022. "Using Net Primary Productivity to Characterize the Spatio-Temporal Dynamics of Ecological Footprint for a Resource-Based City, Panzhihua in China," Sustainability, MDPI, vol. 14(5), pages 1-14, March.
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