Land-cover changes of biome transition zones in Loess Plateau of China
文献类型：SCI/SSCI论文
| 作者 | Li J.; Li J. |
| 发表日期 | 2013 |
| 关键词 | Holdridge life zone model Biome transition zone Spatial distribution Land-cover change Loess Plateau major terrestrial ecosystems climate-change north-america life zones united-states soil-erosion vegetation classification science precipitation |
| 英文摘要 | The Holdridge life zone (HLZ) model has been improved to help classify the biome transition zone (BTZ) in China's Loess Plateau. A positive and negative transformation index of land-cover (PNTIL) was developed to quantitatively evaluate the land-cover changes in every type of BTZ. Three bioclimatic datasets, with a spatial resolution of 1 km x 1 km, were used to classify the BTZ type in Loess Plateau. These include the mean annual biotemperature (MAB), average total annual precipitation (TAP) and potential evapotranspiration ratio (PER). In 1985, 1995 and 2005 land cover data was used to analyze the changes within BTZs. The results show that there are 14 BTZ types, which account for 25.21% of the total land-cover area in Loess Plateau. From 1985 to 2005, cultivated land decreased 0.93% per decade; on average wetland and water areas, woodland and grassland increased 3.47%, 0.24% and 0.06% respectively per decade. During this period the total rate of whole BTZ land-cover transformation decreased from 28.53% to 21.91%. Overall the total positive and negative transformed areas of land cover in BTZs displayed a decreasing trend. Moreover, the results indicate that the transition zones may have exhibited a greater change and landscape diversity than the adjacent biomes in Loess Plateau from 1985 to 2005. (C) 2012 Elsevier B.V. All rights reserved. |
| 出处 | Ecological Modelling |
| 卷 | 252 |
| 页 | 129-140 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0304-3800 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30585]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Li J.,Li J.. Land-cover changes of biome transition zones in Loess Plateau of China. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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