干旱区生态环境知识资源中心(Arid): WaSSI-C模型在焉耆盆地的适用性改进与应用

Arid

	WaSSI-C模型在焉耆盆地的适用性改进与应用
其他题名	Applicability improvement and application of WaSSI-C model in Yanqi Basin
	侯晓臣 1; 孙伟 1; 李建贵 2; 李全胜 1
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2019
卷号	54 期号:3 页码:108-116
中文摘要	【目的】为缓解干旱区日益突出的水碳矛盾,进而为其水碳资源综合管理提供有效的工具和决策支持.【方法】选取典型干旱区焉耆盆地为研究对象,基于WaSSI-C模型(water supply stress index-carbon model)的理论框架和运行机理,针对研究区的自然地理和环境特征,增加冰川融化计算模块,对WaSSI-C模型进行适用性改进.以2000~2009年作为率定期,2010~2015年作为验证期,对研究区实测径流、MODIS蒸散(ET)和总生态系统生产力(GEP)数据进行统计分析,利用决定系数(R~2)和效率系数(NS)评价模型的模拟精度,应用GIS空间分析技术探讨研究区水碳资源的空间分布特征.【结果】1)研究区率定期和验证期总径流对比验证的R~2分别为0.80和0.77,NS为0.77和0.69;ET对比验证R~2分别为0.82和0.79,NS为0.80和0.76;GEP对比验证R~2分别为0.88和0.84,NS分别为0.87和0.82;2)径流空间分布呈现西高东低、北高南低的特点;ET和GEP均呈现中间高,四周低的特点.【结论】改进后的WaSSI-C模型在焉耆盆地具有良好的适用性,且模拟结果显示焉耆盆地的水碳资源具有明显的空间异质分布特征.
英文摘要	【Objective】In order to alleviate the increasingly prominent contradiction between water and carbon in arid areas,and provide effective tools and decision support for integrated management of water and carbon resources.【Method】Yanqi Basin,a typical arid region,was selected as the research site.Based on the theoretical framework and operating mechanism of the WaSSI-C(water supply stress index-carbon model)model,the module for calculating the melt of glaciers was added to improve the applicability of the model according to the characters of natural geography and the environment in the study area.The data of measured runoff,evapotranspiration(ET)and total ecosystem productivity(GEP)of MODIS in the study area from 2000 to 2009 were analyzed as the calibration period and the data from 2010 to 2015 were used as the validation period.The precision of the simulation of the model was evaluated by using the coefficient of determination(R~2)and the efficiency coefficient(NS).The spatial distribution characteristics of resources of water and carbon were analyzed by using the technique of GIS Spatial Analysis.【Result】The R~2 of calibration and verification period for the total runoff in the study area were 0.80 and 0.77 respectively,and NS was 0.77 and 0.69 respectively;The R~2 for ET were 0.82 and 0.79 respectively,NSwas 0.80 and 0.76 respectively;The R~2 for GEP were 0.88 and 0.84,NS were 0.87 and 0.82.The characteristics of the spatial distribution of runoff were higher in west and north parts than in east and south parts.The characteristics of the spatial distribution of ET and GEP were higher in middle area than the around area.【Conclusion】It could be concluded that the improved WaSSI-C model had an excellent applicability in Yanqi Basin.And the simulation results showed that the water and carbon resources in Yanqi basin were obvious spatial heterogeneity.
中文关键词	WaSSI-C模型 ; 焉耆盆地 ; 水碳耦合 ; 空间分布
英文关键词	WaSSI-C model Yanqi Basin coupling of water and carbon spatial distribution
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:6537583
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239082
作者单位	1.新疆农业大学计算机与信息工程学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆农业大学林业研究所, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	侯晓臣,孙伟,李建贵,等. WaSSI-C模型在焉耆盆地的适用性改进与应用[J]. 新疆农业大学,2019,54(3):108-116.
APA	侯晓臣,孙伟,李建贵,&李全胜.(2019).WaSSI-C模型在焉耆盆地的适用性改进与应用.甘肃农业大学学报,54(3),108-116.
MLA	侯晓臣,et al."WaSSI-C模型在焉耆盆地的适用性改进与应用".甘肃农业大学学报 54.3(2019):108-116.