Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14875 |
How afforestation affects the water cycle in drylands: A process-based comparative analysis | |
Schwaerzel, Kai1,2; Zhang, Lulu1; Montanarella, Luca3; Wang, Yanhui4; Sun, Ge5 | |
2019-11-15 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Germany; Italy; Peoples R China; USA |
英文摘要 | The world's largest afforestation programs implemented by China made a great contribution to the global "greening up." These programs have received worldwide attention due to its contribution toward achieving the United Nations Sustainable Development Goals. However, emerging studies have suggested that these campaigns, when not properly implemented, resulted in unintended ecological and water security concerns at the regional scale. While mounting evidence shows that afforestation causes substantial reduction in water yield at the watershed scale, process-based studies on how forest plantations alter the partitioning of rainwater and affect water balance components in natural vegetation are still lacking at the plot scale. This lack of science-based data prevents a comprehensive understanding of forest-related ecosystem services such as soil conservation and water supply under climate change. The present study represents the first "Paired Plot" study of the water balance of afforestation on the Loess Plateau. We investigate the effects of forest structure and environmental factors on the full water cycle in a typical multilayer plantation forest composed of black locust, one of the most popular tree species for plantations worldwide. We measure the ecohydrological components of a black locust versus natural grassland on adjacent sites. The startling finding of this study is that, contrary to the general belief, the understory-instead of the overstory-was the main water consumer in this plantation. Moreover, there is a strict physiological regulation of forest transpiration. In contrast to grassland, annual seepage under the forest was minor in years with an average rainfall. We conclude that global long-term greening efforts in drylands require careful ecohydrologic evaluation so that green and blue water trade-offs are properly addressed. This is especially important for reforestation-based watershed land management, that aims at carbon sequestration in mitigating climate change while maintaining regional water security, to be effective on a large scale. |
英文关键词 | afforestation climate change green and blue flows soil and water conservation soil erosion control United Nations Sustainable Development Goals water cycle in drylands water scarcity management |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496548900001 |
WOS关键词 | SEMIARID LOESS PLATEAU ; BLACK LOCUST PLANTATION ; SAP FLOW MEASUREMENT ; YELLOW-RIVER BASIN ; LAND-USE ; SOIL-MOISTURE ; VEGETATION RESTORATION ; ROBINIA-PSEUDOACACIA ; DECIDUOUS FOREST ; TRANSPIRATION |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225276 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.United Nations Univ Inst Integrated Management Ma, D-01067 Dresden, Germany; 2.Thunen Inst Forest Ecosyst, Eberswalde, Germany; 3.European Commiss, Joint Res Ctr, Ispra, Italy; 4.Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Beijing, Peoples R China; 5.US Forest Serv, Eastern Forest Environm Threat Assessment Ctr, USDA, Res Triangle Pk, NC USA |
推荐引用方式 GB/T 7714 | Schwaerzel, Kai,Zhang, Lulu,Montanarella, Luca,et al. How afforestation affects the water cycle in drylands: A process-based comparative analysis[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Schwaerzel, Kai,Zhang, Lulu,Montanarella, Luca,Wang, Yanhui,&Sun, Ge.(2019).How afforestation affects the water cycle in drylands: A process-based comparative analysis.GLOBAL CHANGE BIOLOGY. |
MLA | Schwaerzel, Kai,et al."How afforestation affects the water cycle in drylands: A process-based comparative analysis".GLOBAL CHANGE BIOLOGY (2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论