Land use and landscape pattern changes in the Fenhe River Basin, China

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 20, 2025

The composition and pattern of ecosystems play a crucial role in determining the overall condition spatial variations ecosystem services. In this study, we explored Normalized Difference Vegetation Index (NDVI), six land use/land cover change (LULC) types, their landscape patterns to reflect spatial-temporal dynamics from 2010 2020 upper middle reaches Fenhe River Basin. trend analysis Mann-Kendall tests was used assess NDVI variation each pixel over past decade. Shannon's Diversity (SHDI) quantify complexity local LULC. Meanwhile, dynamic vegetation LULC types were illustrated using geographic mapping methods. results presented as follows: (1) From 2020, increased, with an annual increment 0.003 (P < 0.001). Spatially, there significant increasing NDVI, particularly high-altitude mountainous areas where mostly consisted forests or grasslands. However, no low-lying urban agglomeration area. (2) During period decrease area water bodies wetlands, rate slowed 2015 2020. Specifically, percentage increased by more than 14%. This proportion exceeded 30% when compared final governmental ecological management goal set during 13th Five-Year Plan Period (2016–2020). (3) same period, SHDI exhibited heterogeneous characteristics. near river basin boundary, values below 1.0. Conversely, low-altitude plains frequent human activities, 1.0, reaching above 1.5 areas. study provides scientific reference for construction environment Basin, along practice insights protection high-quality development Yellow

Language: Английский

Land Suitability and Human Adaptation: River Siang from Sangam to Pongging, Arunachal Pradesh, India

World Development Sustainability, Journal Year: 2024, Volume and Issue: 5, P. 100179 - 100179

Published: Aug. 23, 2024

Land suitability in mountainous regions profoundly influences human adaptation strategies, particularly environments shaped by morphometric characteristics. This study focuses on the Siang river valley from Sangam to Pongging, Arunachal Pradesh, India, employing Suitability Analysis (LSA) assess terrain viability for settlement, and orchard cultivation. Key determinants such as topographic features, drainage morphometry, infrastructural accessibility were analyzed develop thematic maps delineating optimal zones different land uses. The research underscores how geomorphic attributes influence settlement patterns suitability, with lower elevations proving favorable settlements orchards due accessible topography climatic conditions. By integrating spatial analysis techniques assessing variables like elevation, slope, proximity infrastructure euclidian distance pareto principle (80/20 rule), this provides a comprehensive framework informed use planning. Strategic planning recommendations emphasize sustainable practices community engagement balance development needs environmental preservation Pradesh's rugged terrain. It advocates collaborative efforts between stakeholders optimize utilization foster resilient amidst challenging initial attempt aims raise awareness among users, planners, workers, administrators ensure proper effective management.

Language: Английский