干旱区生态环境知识资源中心(Arid): 基于VIC模型模拟的干旱区土壤水分及其时空变化特征

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	基于VIC模型模拟的干旱区土壤水分及其时空变化特征
其他题名	Spatio-temporal variation of soil moisture in arid area based on VIC land surface model
	包青岭; 丁建丽; 王敬哲; 刘婕; 马春玥
来源期刊	生态学报
ISSN	1000-0933
出版年	2020
卷号	40 期号:9 页码:3048-3059
中文摘要	土壤水分在陆地水循环中起着十分重要的作用,大尺度、长时间及高精度的土壤水分监测是旱情预警、生态恢复与精准农业决策部署的重要指导依据,而陆面过程模式模拟在时空尺度上可获得更准确的土壤水分特征。以渭-库绿洲为目标靶区,结合VIC陆面过程模型和土地利用类型变化,探讨20092016年研究区年际间不同地类土壤水分时空变化规律,并用实测数据进行精度验证,结果表明:( 1)东北区域土壤含水率模拟值较高,土壤含水量低值集中在研究区西部与南部区域。( 2)盐渍土壤表层含水量高于耕地,每年雨季,灌丛土壤含水量高于其他3种地类,由于大量荒地转为耕地,绿洲荒地土壤含水量与耕地土壤相互接近,在28.78453.741 mm之间。( 3)渭-库绿洲近7年耕地与盐渍地面积大幅度增加,耕地与盐渍地面积增幅达35%以上,荒地面积相较2009年减少约46%,灌丛面积增幅约15%。( 4)荒地土壤含水量伴随面积大幅度下降,土壤含水量数值集中在正态曲线28.6 mm以上区域。VIC模拟值与实测值均方根误差( RMSE)范围在1.42.80之间,RE范围在0.902.20之间, R2范围在0.400.60之间,模拟效果较好。
英文摘要	There is an increasing need of large-scale,long-term and high-precision soil moisture monitoring. Methods based on land use features,such as Variable Infiltration Capacity ( VIC) land-surface process model,can obtain more accurate soil moisture characteristics in the spatio-temporal scale. It is of great significance to drought early warning,ecological restoration,and precision agriculture decision-making and deployment. This paper took Wei-Ku oasis as the target area, combined with VIC land surface process model and land use type change,to discuss the temporal and spatial changes of soil moisture of different types in the study area from 2009 to 2016,and verified the accuracy with the measured data. The results showed that: ( 1) the simulated value of soil moisture content in the northeast region was high,while the low value of soil moisture content was concentrated in the western and southern regions of the study area. ( 2) The surface moisture content of saline soil was higher than that of cultivated land. In rainy season,the soil moisture content of shrub soil was higher than that of other 3 types of land. Due to a large number of wasteland being converted into cultivated land,the soil moisture content of oasis wasteland was close to that of the cultivated land,between 28.784 and 53.741 mm. ( 3) In the past 7 years,the area of cultivated land and salinized land in Wei-Ku oasis have been greatly increased,the area of cultivated land and salinized land increased by over 35%,the area of wasteland decreased by about 46% compared with that of 2009,and the area of shrub increased by about 15%. ( 4) The wasteland soil moisture content decreased significantly with the area,and the soil moisture content values were concentrated in the area above 28.6 mm of the normal curve. The VIC simulated value and measured value RMSE ranged from 1.4 to 2.80,RE ranged from 0.90 to 2.20,R2 ranged from 0.40 to 0.60,and the simulation effect was good.
中文关键词	土壤含水量 ; VIC陆面过程模型 ; 土地利用类型 ; 时空变化
英文关键词	soil moisture Variable Infiltration Capacity ( VIC) land surface model land use type spatiotemporal variation
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6723026
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336471
作者单位	包青岭, 新疆大学资源与环境科学学院;;新疆大学绿洲生态教育部重点实验;;新疆财经大学, 智慧城市与环境建模自治区普通高校重点实验室;;;;, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, ;;;; 830046;;830046;;830046.; 丁建丽, 新疆大学资源与环境科学学院;;新疆大学绿洲生态教育部重点实验, 智慧城市与环境建模自治区普通高校重点实验室;;, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046.; 王敬哲, 新疆大学资源与环境科学学院;;新疆大学绿洲生态教育部重点实验, 智慧城市与环境建模自治区普通高校重点实验室;;, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046.; 刘婕, 新疆大学资源与环境科学学院;;新疆大学绿洲生态教育部重点实验, 智慧城市与环境建模自治区普通高校重点实验室;;, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046.; 马春玥, 新疆大学资源与环境科学学院;;新疆大学绿洲生态教育部重点实验, 智慧城市与环境建模自治区普通高校重点实验室;;, 乌鲁木齐;;乌鲁木齐, ;; 830046;;830046.
推荐引用方式 GB/T 7714	包青岭,丁建丽,王敬哲,等. 基于VIC模型模拟的干旱区土壤水分及其时空变化特征[J]. 新疆大学,2020,40(9):3048-3059.
APA	包青岭,丁建丽,王敬哲,刘婕,&马春玥.(2020).基于VIC模型模拟的干旱区土壤水分及其时空变化特征.生态学报,40(9),3048-3059.
MLA	包青岭,et al."基于VIC模型模拟的干旱区土壤水分及其时空变化特征".生态学报 40.9(2020):3048-3059.