气候变化领域集成服务门户(CCPortal): Accelerated reduction in China's cropland fires against the background of policy enhancement

CCPortal

DOI	10.1016/j.eiar.2024.107512
	Accelerated reduction in China's cropland fires against the background of policy enhancement
	Lian, Chenqin; Li, Peng; Feng, Zhiming
发表日期	2024
ISSN	0195-9255
EISSN	1873-6432
起始页码	106
卷号	106
英文摘要	Cropland fires contribute significantly to the emission of air pollutants, with implications for the atmospheric environment, public health, and climate change. However, the development of cropland fires in response to straw burning policy interventions has not been fully explored. With the Moderate Resolution Imaging Spectroradiometer Collection 6 (MODIS C6) active fire products and China land-cover data (CLCD), counts and fire radiative power (FRP) of cropland fire spots were extracted in China from 2003 to 2022, followed by analyses of their spatiotemporal patterns and evolutionary characteristics at the provincial, regional, national, and grid (0.25 degrees x 0.25 degrees) levels and at monthly to annual scales via trend analysis, kernel density analysis, and geographic distribution analysis. The key findings include: (1) National policies banning straw burning reversed the changes in the quantity and intensity of China's cropland fires in 2013, with the frequency and FRP in 2022 declining by 58% and 62% compared with the 2014 peak. (2) Cropland fires were highly prevalent in Northeast and North China (NEC and NC), with significant regional differences, particularly in spring, summer and autumn. (3) A notable lag effect of burning ban policies was seen in Northeast China, where the increasing trends of the frequency and intensity of cropland fires were not reversed until 2017, followed by declines in frequency and FRP of 67% and 62%, respectively during 2017-2022. (4) Cropland fires showed an increasing concentration trend but with enormous regional differences, with an increasing trend of a high-high concentration pattern in NEC and a decreasing trend in NC. This study contributes to understanding the effectiveness of national policies that ban straw burning and support cropland fire management and policy-making.
英文关键词	Cropland fires; MODIS C6; Straw burning ban policies; Spatiotemporal evolution; China
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Studies
WOS记录号	WOS:001229677400001
来源期刊	ENVIRONMENTAL IMPACT ASSESSMENT REVIEW
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303186
作者单位	Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Jiangxi Normal University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
推荐引用方式 GB/T 7714	Lian, Chenqin,Li, Peng,Feng, Zhiming. Accelerated reduction in China's cropland fires against the background of policy enhancement[J],2024,106.
APA	Lian, Chenqin,Li, Peng,&Feng, Zhiming.(2024).Accelerated reduction in China's cropland fires against the background of policy enhancement.ENVIRONMENTAL IMPACT ASSESSMENT REVIEW,106.
MLA	Lian, Chenqin,et al."Accelerated reduction in China's cropland fires against the background of policy enhancement".ENVIRONMENTAL IMPACT ASSESSMENT REVIEW 106(2024).