Forest carbon storage along the north-south transect of eastern China: Spatial patterns, allocation, and influencing factors
Forest carbon storage along the north-south transect of eastern China: Spatial patterns, allocation, and influencing factors
复制标题
DOI：
10.1016/j.ecolind.2015.10.054
复制
发表时间：
2016-02
影响因子：
6.9
通讯作者：
D. Wen;N. He
中科院分区：
文献类型：
--
作者：
D. Wen;N. He
森林在封存大气二氧化碳方面发挥着重要作用；因此，了解森林碳储存的空间变化和控制机制非常重要。在本研究中，我们从 2004 年至 2014 年发表的文献中收集了中国东部南北断面沿线的森林碳储存数据。收集的数据来自 2000 多个样地，使我们能够探索森林碳储存的纬度模式。结果表明，随着纬度的增加，植被碳储量减少，而土壤碳储量增加。这种植被碳储存的空间格局对于成熟森林（森林年龄> 80年）更为明显。此外，植被和土壤中森林碳储存的纬度模式随着统计规模的增加而变得更强，从地块规模增加到纬度规模（2-5°）。然而，森林碳储存总量（植被+土壤）没有明显的纬度模式。有趣的是，森林碳储量在植被和土壤之间的分配比例与纬度呈负对数关系。这些结果表明，在中国东部，气候因素控制着森林植被和土壤碳储量的纬度格局，尽管方式不同（对植被有利，对土壤不利），并且还控制着森林碳储量在植被和土壤之间的分配比例。此外，由于不同的气候控制机制，森林碳储存的纬度格局对于植被和土壤而言是相反的。
Forests play an important role in sequestrating atmospheric CO2; therefore, understanding the spatial variations and controlling mechanisms of forest carbon (C) storage is important. In this study, we collected data on forest C storage along a north-south transect of eastern China from literature published between 2004 and 2014. The collected data, which were from over 2000 plots, allowed us to explore the latitudinal patterns in forest C storage. The results showed that vegetation C storage decreased with increasing latitude, while soil C storage increased. This spatial pattern of vegetation C storage was more apparent for mature forests (forest age > 80 years). Furthermore, latitudinal patterns in forest C storage, both in vegetation and in soil, became stronger with increasing statistical scale, increasing from plot scale to latitudinal scale (2–5°). However, total forest C storage (vegetation + soil) had no apparent latitudinal pattern. Interestingly, the allocation ratios of forest C storage between vegetation and soil had a negative logarithmic relationship with latitude. These results suggest that in eastern China, climatic factors control latitudinal patterns in the forest C storage of vegetation and soil, albeit in different ways (positive for vegetation and negative for soil), and also control the allocation ratios of forest C storage between vegetation and soil. Furthermore, the latitudinal patterns of forest C storage were opposite for vegetation and soil, resulting from the different climatic controlling mechanism.