Impact of land use and land cover change on the landscape pattern and service value of the village ecosystem in the karst desertification control

Abstract

Human activities have had a significant impact on ecosystems. Studying landscape patterns and ecosystem services (ES) at the village scale based on land use and land cover (LULC) is essential in addressing current ecosystem issues. Based on GF images, the paper selects village ecosystems of karst desertification control (KDC) as the research object. It uses the landscape pattern index, topographic position index (TPI), and value equivalent method to conduct a spatial and temporal analysis of the ecosystem service value (ESV) of the karst desertification control cycle (2015–2020). The results show that: 1) forest land, orchard land, and construction land increase, and dryland and grassland decrease. The landscape shows an aggregated state, with spreading and connectivity increasing while fragrant diversity is decreasing. 2) The total ecosystem service value increased by CNY 63.45 × 104, with regulating and cultural services on the rise and supply and support services on the decline. 3) With the rise of the TPI, the value of the supply services is inversely U-shaped, while the value of the remaining services increases. This study provides a case study about karst desertification areas for village-scale ecosystem services research.

Long-Term Dynamics of Ecosystem Services and Their Influencing Factors in Ecologically Fragile Southwest China

“…Planting large numbers of trees in non-forested areas might also not contribute to climate change mitigation [103]. Single-purpose land use and unrealistic land use policies often upset the balance between ecosystem services [5], resulting in reduced overall services [15]. Spatially oriented land use policies can serve to enhance the value of ecosystem services [5].…”

“…However, the majority of previous studies focused on non-karst regions or karst areas. Even though a few studies have focused on both areas, they were limited to a specific province [13] or city and county level [15]. The overall characteristics of ecosystem service functions in Southwest China remain unclear [16].…”

“…[20,21]. Current ecosystem services studies emphasize the importance of considering time and space perspectives [15,16].…”

“…Precipitation impacts ecosystems by modifying their biophysical processes, which subsequently alters ecosystem services [26,27]. Over the past six decades, human activities have transformed 32% of the world's land [28], imposing significant challenges to global ecosystems [15]. Moreover, global ecosystems continue to degrade due to increasing anthropogenic disturbances [5,18].…”

Evaluation of Perceptions Using Facial Expression Scores on Ecological Service Value of Blue and Green Spaces in 61 Parks in Guizhou

“…Lu et al (2022) reported that fully decertified lands were evaluated to have a higher ESV than those subjected to partly rocky lands [45]. High elevation (~1100 m) resulted in a higher ESV in provision ESs compared to lower altitude (~800 m) [45], but the ESV for ECSs increased, with rising elevation dominating the topographical index [46]. The evaluation instrument in these studies varied with low matching comparations and, furthermore, the rationality for contrasting ESV needs to be judged by a third-party parameter that has reasonable scientific meaning.…”