干旱区生态环境知识资源中心(Arid): Effects of Farmland Landscape Fragmentation on Agricultural Irrigation in Hotan Oasis

Arid

DOI	10.3390/agriculture12091503
	Effects of Farmland Landscape Fragmentation on Agricultural Irrigation in Hotan Oasis
	Zhang, Lei; Liu, Yunfei; Yin, Changjun; Xue, Dongping; Gui, Dongwei; Qi, Zhiming
通讯作者	Gui, DW
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2022
卷号	12 期号:9
英文摘要	Farmland landscape fragmentation is an important problem affecting the agricultural modernization process in China. However, farmland landscape fragmentation leads to land being wasted and increases management costs, particularly in the dryland's oasis regions. Therefore, investigating the impact of farmland landscape fragmentation on agricultural irrigation is of great significance in developing oasis agriculture. This paper used the landscape quantitative index (DIVISION), the moving window method, and gradient analysis methods to study the temporal and spatial pattern changes in farmland fragmentation in the Hotan Oasis. Additionally, the impact of fragmentation on irrigation in the oasis was elaborated upon by exploring the relationship between evapotranspiration and its components in farmland fragmentation. The results showed that the farmland area of the Hotan Oasis increased from 1546.19 km(2) in 2000 to 2068.23 km(2) in 2020, and farmland landscape fragmentation increased with the expansion of the Hotan Oasis. In addition, a significant relationship between farmland fragmentation and evapotranspiration and its components was evident. A lower DIVISION value corresponded to a higher ET value, a lower ETs/ETc ratio, and a higher water use efficiency. When the total farmland area is assumed to remain unchanged, the irrigation water consumption is reduced by 4.82 x 10(8) m(3) according to the size and proportion of arable land with the lowest degree of fragmentation (L1, division value of 0.46). In addition, with the increase in the proportion of farmland, the scale of oasis decreases by 2431.56 km(2) for the reduction in field roads, shelterbelt, and bare land. These findings suggest that solving the problem of farmland fragmentation can effectively reduce irrigation water consumption, realize the internal expansion of the oasis through intensive land use, and relieve the pressure of the external expansion of the oasis.
英文关键词	oasis farmland fragmentation evapotranspiration agricultural irrigation intensive land use
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000858557300001
WOS关键词	LAND FRAGMENTATION ; OWNERSHIP ; REGION ; CHINA ; INDEX ; SIZE
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391699
推荐引用方式 GB/T 7714	Zhang, Lei,Liu, Yunfei,Yin, Changjun,et al. Effects of Farmland Landscape Fragmentation on Agricultural Irrigation in Hotan Oasis[J],2022,12(9).
APA	Zhang, Lei,Liu, Yunfei,Yin, Changjun,Xue, Dongping,Gui, Dongwei,&Qi, Zhiming.(2022).Effects of Farmland Landscape Fragmentation on Agricultural Irrigation in Hotan Oasis.AGRICULTURE-BASEL,12(9).
MLA	Zhang, Lei,et al."Effects of Farmland Landscape Fragmentation on Agricultural Irrigation in Hotan Oasis".AGRICULTURE-BASEL 12.9(2022).