论文标题
生态工程控制西南中国喀斯特的植被趋势
Eco-engineering controls vegetation trends in southwest China karst
论文作者
论文摘要
中国西南部Yunnan-Guangxi-Guizhou地区的喀斯特地区以广泛的岩石荒漠化而闻名，但几项研究报告了自2000年以来的绿色趋势。尽管绿色趋势的开始似乎与生态保护项目的实施相匹配，但在植被绿色和生态绿化和生态培训之间的统计证据中没有统计证据。此外，很少研究影响植被趋势空间模式的主要因素。在这里，我们使用六个代表研究区域的自然条件和人类活动的六个综合因素，几个统计模型始终表明，生态工程解释了喀斯特地区积极植被趋势的大部分，而云南非karst地区的负植被趋势与降雨的下降相关。我们进一步表明，生态工程与其他因素的相互作用导致不同植被趋势的异质模式。在计划生态恢复时，了解和理解这些模式至关重要，尤其是在中国喀斯特等各种景观中，可以在其他恢复区域重复使用这些方法。
The karst area in Yunnan-Guangxi-Guizhou region in southwest China is known for widespread rocky desertification but several studies report a greening trend since the year 2000. While the start of the greening trend seems to match with the implementation of ecological conservation projects, no statistical evidence on a relationship between vegetation greening and eco-engineering exists. Moreover, dominant factors influencing the spatial patterns of vegetation trends have rarely been investigated. Here we use six comprehensive factors representing the natural conditions and human activities of the study area, and several statistical models consistently show that eco-engineering explains large parts of the positive vegetation trends in the karst areas, while negative vegetation trends in non-karst areas of Yunnan were related with a decrease in rainfall. We further show that the interaction of eco-engineering with other factors leads to a heterogeneous pattern of different vegetation trends. Knowing and understanding these patterns is crucial when planning ecological restoration, especially in diverse landscapes like China karst and the methods can be reused in other restoration areas.
