The relation between soil erosion dynamics and landscape pattern variation in the Minjiang River headwaters in Sichuan, China
As a complex geomorpholohical, hydrological, and ecological process, soil erosion is affected by the landscape heterogeneity. This study analyzed dynamic variations in landscape pattern and soil erosion within an approximate 11,100 km2 area of in the upper Yangtze River basin over a period of 28 years to elucidate the interrelationships between landscape pattern and soil erosion. Different landscape classes affected soil erosion in different ways. The impacts of forest, shrub or grassland on soil erosion followed the general mitigating trend observed in the overall landscape changes. In contrast, soil erosion rates distinctly increased on cultivated lands.Forests and grasslands with low human impact played a dominant role in the process of land rehabilitation and should be given more attention in efforts to protect and manage the watersheds of the upper Yangtze River.
Y.Liu H.Jiang O.Luukkanen C.Li
Faculty of Environmental Science and Engineer, Southwest Jiaotong University, Chengdu, China International Institute for Earth System Science, Nanfing University, Nanfing, China Viikki Tropical Resources Institute, University of Helsinki, Finland Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
431-435
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）