Work

Analysis of Spatiotemporal Evolution Characteristics and Driving Factors of NPP in Guizhou Province, China

Year: 2025

Type: article

Abstract: ABSTRACT Karst ecosystems are ecologically fragile and highly sensitive to climate change. This study explored the spatiotemporal changes and driving mechanisms of net primary productivity (NPP) in Guizhou Province, a typical karst region in Southwest China, from 2000 to 2020. By integrating multisource geospatial datasets, we employed comprehensive spatiotemporal analytical methods including Sen + Mann‐Kendall trend analysis, Hurst index, and coefficient of variation, complemented by correlation analysis and the geographic detector modeling. Key findings reveal: (1) A significant upward trend in NPP with an interannual variation of 3.65 g C m −2 a −1 and a multiyear average of 785.47 g C m −2 a −1 ; (2) Distinct spatial heterogeneity showing southern high‐value zones contrasting with lower values in northern, eastern, and western regions, with 45.76% of areas demonstrating significant positive NPP trends; the overall volatility is stable; (3) Driving mechanism analysis identifies precipitation, soil moisture, and population density as dominant factors, with anthropogenic influences exhibiting increasing temporal dominance.

Source: Ecology and Evolution

DOI: 10.1002/ece3.72231

Authors: Bo Xie, Yi Liu, Han Fan, Mingming Zhang

Institution: Guizhou University

Language: English

Topic: Environmental Changes in China

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

SDGs: Climate action, Life on land

Open Access status: gold

Estimated APC paid: $2,570