Effects of land-use change on net primary productivity in Beijing based on the MODIS series

Fangyan, 成方妍 Cheng; Shiliang, 刘世梁 Liu; Yueqiu, 张月秋 Zhang; Yijie, 尹艺洁 Yin; Xiaoyun, 侯笑云 Hou

doi:10.5846/stxb201606301342

Cited by 3 publications

(3 citation statements)

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“…Previous studies have shown that landscape pattern is correlated with NPP, and the change in NPP is influenced by the change in landscape pattern [3,4]. In order to understand the influence of landscape pattern on NPP in detail, we determined the scale effect of the correlation between landscape pattern and NPP.…”

Section: Discussionmentioning

confidence: 99%

“…Landscape patterns are closely related to landscape diversity and ecological value [2], which is of great significance for studying the sustainable development of ecosystems. Human activities have a certain degree of influence on landscape patterns, especially when landscape fragmentation and diversity increase [3,4], which can lead to environmental degradation. Analyzing changes in landscape patterns has been proven to help identify some of the impacts between human activities and changes in natural conditions [5], while net primary productivity is also significantly affected by these changes [6].…”

Section: Introductionmentioning

confidence: 99%

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Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China

Xu,

2023

Land

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Human activities and environmental changes have influenced the changes in landscape patterns, which in turn profoundly impact the variation in net primary productivity (NPP) of vegetation. Understanding the relationship between landscape patterns and NPP is of significant importance for maintaining ecosystem stability and improving the ecological environment. In this study, six land use types in the arid and semi-arid regions of Northwest China were selected, and five landscape pattern indices at the landscape level and four landscape pattern indices at the class level were used. Pearson correlation and multiple linear regression models were employed to analyze the relationship between landscape indices and NPP at a 100 km × 100 km grid scale. The results indicate that there are varying degrees of correlation between landscape pattern indices and NPP from 2001 to 2020, with different levels of variation over the 20-year period. The correlation between indices and NPP is higher at the class level than at the landscape level, and the increase in landscape abundance and fragmentation promotes an increase in NPP. At the landscape level, three landscape indices, namely NP (Number of Patches), PR (Patch Richness), and SHDI (Shannon’s Diversity Index), explain 45.4% of the variation in NPP. At the class level, NP, TE (Total Edge Length), and IJI (Dispersion and Juxtaposition Index) are the main influencing factors for NPP in cropland, forestland, and grassland. Therefore, in ecological governance, it is necessary to consider landscape pattern changes appropriately to maintain ecosystem stability.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China

Xu,

2023

Land

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“…The shift from carbon sinks to carbon sources was associated with LULCC due to net primary productivity (NPP) reduction in tropical peat lands [17]. LULCC contributed 34% of NPP growth in the period of 2000-2006; however, the change in NPP hindered growth by 27% in the period of 2006-2012 in Beijing, China [18]. The contribution rates of vegetation land-use type area change to NPP change in the periods 2000-2010 and 2010-2020 were 18% and 34%, respectively, in the Beijing-Tianjin-Hebei region of China [11].…”

Section: Introductionmentioning

confidence: 99%

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

Zhao,

Jia,

Liu

2023

Sustainability

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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/m2•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, CO2 emissions, GDP and hours of sunshine. NPP was positively correlated with annual precipitation, CO2 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.

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Quantifying the spatiotemporal patterns and environmental impacts of surface coal mining in the Xilingol Steppe, Inner Mongolia

Zeng,

Ma,

Wang

et al. 2024

Reg Environ Change

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Effects of land-use change on net primary productivity in Beijing based on the MODIS series

Cited by 3 publications

References 0 publications

Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China

Correlation between Landscape Pattern and Net Primary Productivity of Vegetation: A Case Study in the Arid and Semi-Arid Regions of Northwest China

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

Quantifying the spatiotemporal patterns and environmental impacts of surface coal mining in the Xilingol Steppe, Inner Mongolia

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