中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
The Effects of Precipitation Event Characteristics and Afforestation on the Greening in Arid Grasslands, China

文献类型：期刊论文

作者Guo, Xuan1,2; Guo, Qun1,2,3; Hu, Zhongmin4; Li, Shenggong1,2,3; Min, Qingwen1,2; Mu, Songlin5; Xu, Chengdong1,2; Sun, Linli6
刊名REMOTE SENSING
出版日期2023-09-01
卷号15期号:18页码:14
关键词NDVI greening growing season precipitation (GSP) precipitation event characteristics (PEC) afforestation projects temperate grasslands in north China
DOI10.3390/rs15184621
通讯作者Guo, Qun(guoq@igsnrr.ac.cn)
英文摘要Global greening and its relationship with climate change remain the hot topics in recent years, and are of critical importance for understanding the interactions between the terrestrial ecosystem carbon cycle and the climate system. China, especially north China, has contributed a lot to global greening during the past few decades. As a water-limited ecosystem, human activities, not precipitation amount, were thought as the main contributor to the greening of north China. Considering the importance of precipitation event characteristics (PEC) in the altered precipitation regimes, we integrated long-term normalized difference vegetation index (NDVI) and meteorological datasets to reveal the role of precipitation regimes, especially PECs, on vegetation growth across temperate grasslands in north China. Accompanied with a significantly decreased growing season precipitation (GSP), NDVI increased significantly in the largest area of the temperate grasslands during 1982-2015, i.e., greening. We found that 28.44% of the area was explained by PECs, including more heavy or extreme precipitation events, alleviated extreme drought, and fewer light events, while only 0.92% of the area was associated with GSP. NDVI did not always increase over the 30 years and there was a decrease during 1996-2005. Taking afforestation projects in desertified lands into account, we found that precipitation, mainly PECs, explained more the increase and decline of NDVI during 1982-1995 and 1996-2005, respectively, while an equivalent explanatory power of precipitation and afforestation projects to the increase in NDVI after 2005. Our study indicates a possible higher productivity under future precipitation regime scenario (e.g., fewer but larger precipitation events) or intensive afforestation activity, implying more carbon sequestration or livestock production of temperate steppe in the future.
WOS关键词NET PRIMARY PRODUCTIVITY ; CARBON SEQUESTRATION ; SOIL-MOISTURE ; VEGETATION ; RESPONSES ; TEMPERATURE ; DYNAMICS ; NDVI ; ECOSYSTEMS ; INTENSITY
资助项目This study was jointly supported by the National Natural Science Foundation of China (32161143029, 32171555, 31922053), Strategic Priority Research Program of Chinese Academy of Sciences (Pan-TPE XDA23060205), and Key Projects of Beijing Academy of Social[32161143029] ; This study was jointly supported by the National Natural Science Foundation of China (32161143029, 32171555, 31922053), Strategic Priority Research Program of Chinese Academy of Sciences (Pan-TPE XDA23060205), and Key Projects of Beijing Academy of Social[32171555] ; This study was jointly supported by the National Natural Science Foundation of China (32161143029, 32171555, 31922053), Strategic Priority Research Program of Chinese Academy of Sciences (Pan-TPE XDA23060205), and Key Projects of Beijing Academy of Social[31922053] ; National Natural Science Foundation of China[Pan-TPE XDA23060205] ; Strategic Priority Research Program of Chinese Academy of Sciences[KY2023A0029] ; Key Projects of Beijing Academy of Social Sciences
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:001072513100001
资助机构This study was jointly supported by the National Natural Science Foundation of China (32161143029, 32171555, 31922053), Strategic Priority Research Program of Chinese Academy of Sciences (Pan-TPE XDA23060205), and Key Projects of Beijing Academy of Social ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Projects of Beijing Academy of Social Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/198357]  
专题中国科学院地理科学与资源研究所
通讯作者Guo, Qun
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Natl Ecosyst Sci Data Ctr, Beijing 100101, Peoples R China
4.Hainan Univ, Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou 570228, Peoples R China
5.Beijing Acad Social Sci, Beijing 100101, Peoples R China
6.Tongliao Meteorol Bur Inner Mongolia, Tongliao 028000, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Xuan,Guo, Qun,Hu, Zhongmin,et al. The Effects of Precipitation Event Characteristics and Afforestation on the Greening in Arid Grasslands, China[J]. REMOTE SENSING,2023,15(18):14.
APA Guo, Xuan.,Guo, Qun.,Hu, Zhongmin.,Li, Shenggong.,Min, Qingwen.,...&Sun, Linli.(2023).The Effects of Precipitation Event Characteristics and Afforestation on the Greening in Arid Grasslands, China.REMOTE SENSING,15(18),14.
MLA Guo, Xuan,et al."The Effects of Precipitation Event Characteristics and Afforestation on the Greening in Arid Grasslands, China".REMOTE SENSING 15.18(2023):14.

入库方式： OAI收割

来源：地理科学与资源研究所

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。