干旱区生态环境知识资源中心(Arid): 耕地利用下挠力河流域水分平衡效应研究

Arid

	耕地利用下挠力河流域水分平衡效应研究
其他题名	Cultivated Land Change Induced Water Balance Effect in Naoli River Basin
	周浩; 金平; 夏卫生; 谢炳庚
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2020
卷号	51 期号:7
中文摘要	为明确我国核心粮食产区的气候湿润状况,以商品粮生产基地挠力河流域为研究区,基于MODIS遥感数据和常规气象数据,利用区域遥感蒸散模型反演自200 0年以来该流域典型时间段的气候水分盈亏状况,揭示该流域耕地利用下的水分平衡效应。结果表明:2000年以来,挠力河流域耕地内部结构变化剧烈,水田急剧扩张,旱地面积持续下降;该流域逐日潜在蒸散量累加值呈现显著的S形曲线特征,且在空间上表现出南部和干流北端偏高的特点;该流域常年处于"负"的气候水分盈亏态势,整体呈现由西向南递减的特点;该流域旱地和水田的气候水分盈亏绝对值逐年下降,水田的气候水分盈亏态势愈加严峻。水分亏缺是挠力河流域气候水分平衡的普遍特征,水田用水问题仍将是挠力河流域乃至三江平原地区农业资源综合利用的焦点。本研究可为区域农业结构调整和农田灌溉措施的制定提供理论支持。
英文摘要	Climatic tendency of warming and drying had been shown distinctly in the mid-latitude zone of the north hemisphere.It was of a series of impacts on the water resources system, especially in the semi-arid regions.Aiming to reveal the water surplus and loss situation by using the remote sensing method in the Naoli River Basin, and then revealing the water balance effect under the cultivated land use change in the basin.The results showed that since 2000, the internal structure of cultivated land in the Naoli River Basin was changed drastically, the paddy field was expanded rapidly from 2000 to 2015, the dryland continued to decrease.The cumulative value of potential evapotranspiration(ET_0)showed obvious S shaped curve increasing feature.This basin was in a state of climate water deficit for many years, and the water deficit in the mountainous areas of Raohe County in the west and northeast was significantly larger than that in the central and southern regions, for its overall trend was from west to south.Along with the rapid changes in the internal structure of the cultivated land in the basin, the average water deficit in dryland and paddy fields showed gradual decline characteristics.The water shortage in the paddy field became more seriously.The amount of water shortage showed the decreasing characteristics year by year.The future water use problem in paddy fields would be the core issue for the comprehensive utilization of agricultural resources in the basin.The research results can be used as references and consultancies for the cultivated land management in Naoli River Basin and also the Sanjiang Plain.
中文关键词	气候水分平衡 ; 潜在蒸散量 ; 水分盈亏 ; 遥感 ; 耕地利用格局 ; 挠力河流域
英文关键词	climate water balance potential evapotranspiration water profit and loss remote sensing spatial pattern of cultivated land use Naoli River Basin
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6753249
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353706
作者单位	周浩, 湖南师范大学资源与环境科学学院, 长沙, 湖南 410081, 中国. 夏卫生, 湖南师范大学资源与环境科学学院, 长沙, 湖南 410081, 中国. 谢炳庚, 湖南师范大学资源与环境科学学院, 长沙, 湖南 410081, 中国. 金平, 湖北省城市规划设计研究院, 武汉, 湖北 430071, 中国.
推荐引用方式 GB/T 7714	周浩,金平,夏卫生,等. 耕地利用下挠力河流域水分平衡效应研究[J],2020,51(7).
APA	周浩,金平,夏卫生,&谢炳庚.(2020).耕地利用下挠力河流域水分平衡效应研究.农业机械学报,51(7).
MLA	周浩,et al."耕地利用下挠力河流域水分平衡效应研究".农业机械学报 51.7(2020).