干旱区生态环境知识资源中心(Arid): Crop production changes and the impact of Grain for Green program in the Loess Plateau of China

Arid

DOI	10.1007/s40333-020-0091-9
	Crop production changes and the impact of Grain for Green program in the Loess Plateau of China
	Lyu, Changhe 1,2; Xu, Zhiyuan 1,2,3
通讯作者	Lyu, Changhe
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2020
卷号	12 期号:1 页码:18-28
英文摘要	Since the Grain for Green (GFG) program was implemented in 1999, most steeply sloping farmlands in the Loess Plateau of China have been returned to forestland and grassland. To understand its impact on the food production, this study analyzed the spatiotemporal changes of food crop production (FCP) in the plateau and quantified the contribution of sown area and yield changes to the total FCP during 1998-2014 using factor decomposition models, and then discussed the impact of GFG program on the FCP based on literature data. With the implementation of GFG program, total sown area in the Loess Plateau quickly deceased by 17.3% from 1998 to 2003, and then gradually restored to 1.03x10(7) hm(2) in 2010. Thereafter, it slightly decreased to 1.02x10(7) hm(2) (94.6% of the area in 1998) in 2014. By contrast, total FCP generally showed an apparent growth trend, averagely increased by 1.71% per year in the whole plateau during 1998-2014. This increase was jointly contributed by the improved yield of individual crops, and the adjustment of cropping structure, i.e., the expansion of high yield maize crop. The factor decomposition analysis results indicate that the sown area shrinkage only reduced the growth rate of total FCP by 0.29% per year during 1998-2014, although a significant impact was found for the early stage of 1999-2003. The results suggest that the implementation of GFG program would not induce an obvious risk of the food security. Therefore, it is suggested that the GFG program should be set as a long-term strategic policy, by not only supporting the conversion of slope farmlands, but also helping local farmers to seek sustainable ways of land use to improve the income and livelihood. It can be combined with the poverty eradication program, to simultaneously achieve the national goals of ecological civilization building and the livelihood improvement of rural people in the Loess Plateau. Considering rainfall limitation, the conversion of slope farmlands should be prioritized to grasslands.
英文关键词	spatiotemporal change farmland conversion hilly region factor decomposition semi-arid regions
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000522856000002
WOS关键词	LAND-USE ; SOIL-EROSION ; FOOD SECURITY ; TRANSFORMATION ; CONSERVATION ; RESTORATION ; PROJECT ; RUNOFF ; POLICY ; GIS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314888
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China; 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; 3.Zhejiang Acad Agr Sci, Inst Rural Dev, Hangzhou 310021, Peoples R China
推荐引用方式 GB/T 7714	Lyu, Changhe,Xu, Zhiyuan. Crop production changes and the impact of Grain for Green program in the Loess Plateau of China[J]. 中国科学院地理科学与资源研究所,2020,12(1):18-28.
APA	Lyu, Changhe,&Xu, Zhiyuan.(2020).Crop production changes and the impact of Grain for Green program in the Loess Plateau of China.JOURNAL OF ARID LAND,12(1),18-28.
MLA	Lyu, Changhe,et al."Crop production changes and the impact of Grain for Green program in the Loess Plateau of China".JOURNAL OF ARID LAND 12.1(2020):18-28.