气候变化领域集成服务门户(CCPortal): Effects of climate change on paddy expansion and potential adaption strategies for sustainable agriculture development across Northeast China

CCPortal

DOI	10.1016/j.apgeog.2022.102667
	Effects of climate change on paddy expansion and potential adaption strategies for sustainable agriculture development across Northeast China
	Liu, Yansui; Liu, Xueqi; Liu, Zhengjia
发表日期	2022
ISSN	0143-6228
EISSN	1873-7730
卷号	141
英文摘要	Sustainably feeding an increasing population is a grand challenge in the context of climate change and rapid urbanization. Over the past decades, there has been a remarkable trend in paddy expansion into the mid-high latitude regions of Northeast Asia, especially in China. Yet, knowledge on paddy expansion patterns and corresponding responses to climate change and socioeconomic factors are limited. To bridge this gap, satellite-based land use data for 1990, 2000, 2010 and 2018 at 30-m resolution, as well as historical and projected climatic data (including ERA5 data for 1982-2019 and GCMs data of CMIP5 for 2006-2050) and diverse socioeconomic data, were utilized to investigate patterns and quality changes of paddy fields across Northeast China. Results showed that the 0 degrees C isotherm moved northward by 270 km during 1961-2000 and 190.5 km during 2000-2019. Net paddy area expanded by 2.6 x 104 km2 in Northeast China during 1990-2018; in Heilongjiang Province, paddy area dramatically expanded by about 4.0 x 104 km2 during 1958-2018, of which 1.8 x 104 km2 and 2.2 x 104 km2 increment in 1958-2000 and 2000-2018, respectively. Even though climate hiatus occurred around 2010, the expansion rate of paddy area in Northeast China was up to 1.76 x 103 km2/a during 2010-2018. In addition to warming climate, improved agricultural technologies and physical inputs, increasing market demands, and agricultural policy implement were largely responsible for the paddy expansion in Northeast China. However, continuously cultivated paddy fields had generally more suitable natural conditions and better infrastructure than newly cultivated paddy fields. This study provides some potential suggestions for the sustainable development of modern agriculture in Northeast China.
英文关键词	Paddy expansion; Climate change; Sustainable agriculture development; Paddy field quality; Northeast China
语种	英语
WOS研究方向	Geography
WOS类目	Social Science Citation Index (SSCI)
WOS记录号	WOS:000795881800002
来源期刊	APPLIED GEOGRAPHY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280420
作者单位	Beijing Normal University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Liu, Yansui,Liu, Xueqi,Liu, Zhengjia. Effects of climate change on paddy expansion and potential adaption strategies for sustainable agriculture development across Northeast China[J],2022,141.
APA	Liu, Yansui,Liu, Xueqi,&Liu, Zhengjia.(2022).Effects of climate change on paddy expansion and potential adaption strategies for sustainable agriculture development across Northeast China.APPLIED GEOGRAPHY,141.
MLA	Liu, Yansui,et al."Effects of climate change on paddy expansion and potential adaption strategies for sustainable agriculture development across Northeast China".APPLIED GEOGRAPHY 141(2022).