Effects and implications of ecological restoration projects on ecosystem water use efficiency in the karst region of Southwest China
文献类型：期刊论文
| 作者 | Ding, Zhi2,4,5; Liu, Ying3; Wang, Lunche1; Chen, Yanan2,4; Yu, Pujia2,4; Ma, Mingguo2,4; Tang, Xuguang2,4 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 170页码:9 |
| 关键词 | WUE Restoration activity Afforestation Karst region Land cover changes |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2021.106356 |
| 通讯作者 | Tang, Xuguang(xgtang@swu.edu.cn) |
| 英文摘要 | Large-area ecological restoration projects have been implemented to enhance ecosystem resistance in the karst region of Southwest China since the beginning of the 21st century. Variability in ecosystem water use efficiency (WUE) reflects the responses of vegetation photosynthesis to the water availability. However, whether the restoration projects positively affects ecosystem WUE remains unclear. Therefore, this study aims to evaluate the effect of such projects on ecosystem WUE in the karst and non-karst regions of Southwest China by using time series satellite-based gross primary production and evapotranspiration data. Results show that (1) afforestation, converted from agriculture land, shrubland and grassland, is a major restoration activity in our study region, the area percentage of which is approximately 93% in karst and non-karst regions; (2) the annual mean ecosystem WUE in the karst region is substantially lower but increased faster than the non-karst region from 2001 to 2015; (3) in the karst area, the increase in the annual ecosystem WUE change rate of ecological restorations is slightly lower but the multiyear accumulative effect is larger during the period of 2001-2015. Therefore, we propose that ecological projects, such as afforestation, positively affects "water costs" of terrestrial carbon sink and effectively improves the fragile karst ecosystem function. |
| 资助项目 | Key Research Program of Frontier Sciences, Chinese Academy of Sciences[QYZDB-SSW-DQC011] ; National Natural Science Foundation of China[41830648] ; National Natural Science Foundation of China[41801353] ; National Natural Science Foundation of China[41901383] ; Chongqing Innovation Support Plan Fund for Returned Overseas Chinese Scholars[CX2019023] ; State Key Laboratory of Resources and Environ-mental Information System, Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions[GTYR201906] ; Chongqing Key Laboratory of Karst Environment[Cqk201903] |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000687624200009 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/14209]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Tang, Xuguang |
| 作者单位 | 1.China Univ Geosci, Sch Geog & Informat Engn, Hubei Key Lab Crit Zone Evolut, Wuhan 430074, Peoples R China 2.Southwest Univ, State Cultivat Base Ecoagr Southwest Mt Land, Chongqing 400715, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China 4.Southwest Univ, Sch Geog Sci, Minist Educ, Chongqing Jinfo Mt Karst Ecosyst Natl Observat &, Chongqing 400715, Peoples R China 5.Henan Univ, Key Lab Geospatial Technol Middle & Lower Yellow, Kaifeng 475004, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, Zhi,Liu, Ying,Wang, Lunche,et al. Effects and implications of ecological restoration projects on ecosystem water use efficiency in the karst region of Southwest China[J]. ECOLOGICAL ENGINEERING,2021,170:9. |
| APA | Ding, Zhi.,Liu, Ying.,Wang, Lunche.,Chen, Yanan.,Yu, Pujia.,...&Tang, Xuguang.(2021).Effects and implications of ecological restoration projects on ecosystem water use efficiency in the karst region of Southwest China.ECOLOGICAL ENGINEERING,170,9. |
| MLA | Ding, Zhi,et al."Effects and implications of ecological restoration projects on ecosystem water use efficiency in the karst region of Southwest China".ECOLOGICAL ENGINEERING 170(2021):9. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
浏览0
下载0
收藏0
其他版本
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。