Related Experiment Video
Updated: May 22, 2026

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
Published on: October 16, 2018
Spatio-temporal evolution analysis of land-use carbon effects driven by new quality productive forces: a case study
Xia Zhou1,2, Yanwen Liu3,4, Donghui Zhang5
1School of Resources and Environment Science and Engineering, Hubei University of Science and Technology, Xianning, 437100, China.
Abstract:
This study investigated the spatiotemporal evolution and coupling relationship of land use carbon effects driven by new quality productive forces (NQPF) in Hubei Province, China, using remote sensing data (2000-2020) and socioeconomic statistics (2005-2020). An NQPF evaluation system comprising 19 indicators across three dimensions was constructed using a combined weighting method integrating entropy, coefficient of variation, CRITIC, and principal component analysis. The Tapio decoupling model and Moran's I spatial autocorrelation were employed to examine the NQPF-carbon emission relationship. Results indicated that: (1) Net carbon emissions increased from 4118.38 × 104 t to 19,867.15 × 104 t (382.4% growth), with construction land contributing 98.1% of total carbon sources by 2020. (2) The NQPF index rose from 0.152 to 0.860 (465.8% growth), with the "new objects of labor" dimension receiving the highest weight (0.5921), corroborating the green development-oriented nature of NQPF. (3) All three periods exhibited "weak decoupling," with elasticity coefficients declining from 0.740 to 0.261, indicating strengthening carbon constraints. (4) No significant spatial clustering was detected (|Z|< 1.96); riverside cities (Wuhan, Xiangyang, Yichang) formed "isolated high-emission centers" accounting for 54.2% of provincial emissions. This study pioneers the integration of NQPF theory into land use carbon research, providing scientific basis for regional low-carbon transition in central China.
Related Concept Videos
Soil Microbial Ecology
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Isothermal Processes
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...
Isochoric and Isobaric Processes
Suppose 1000 g of water is heated from 40 degrees...
Global Climate Change