干旱区生态环境知识资源中心(Arid): 基于社会水文耦合模型的干旱区节水农业水土政策比较

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	基于社会水文耦合模型的干旱区节水农业水土政策比较
其他题名	Comparison of water and land policies for agriculture water conservation in arid areas based on a coupled socio-hydrological model
	刘烨; 田富强
来源期刊	清华大学学报. 自然科学版
ISSN	1000-0054
出版年	2016
卷号	56 期号:4 页码:365-372
中文摘要	干旱区节水农业发展过程中,不合理的水土政策可能导致农业用水增加的灌溉效率悖论现象,需要评价水土政策对节水农业发展的影响。该文建立了社会水文耦合模型,包含水土政策、灌溉面积、灌溉用水和环境指标等模块,反映人类政策行为与自然环境变化之间的动态反馈关系。基于该模型,以新疆巴音郭楞蒙古自治州地区19982010年节水农业发展过程为例,设置弱、低、中和强这4种耕地限制力度情景,分析不同情景下干旱区节水农业发展特征。对反映现状的弱耕地限制力度情景的模拟有效解释了灌溉效率悖论现象的发展过程机理。进一步情景对比分析显示:在耕地低限制力度情景和中限制力度情景下,2005年后灌溉用水总量趋于稳定且灌溉面积仍出现较快增长;在强耕地限制力度情景下,农户的节水能力和动力受到限制, 19982010年间灌溉用水总量呈现持续上升的趋势,灌溉面积和节水灌溉面积均增长缓慢,农业经济发展受到抑制。该文的结果表明:基于社会水文耦合模型建立的水土政策分析评价框架,能够揭示导致灌溉效率悖论的水土政策作用机理,从而为干旱区节水农业水土政策的制定提供评价方法和理论支撑。
英文摘要	Improper water and land policies to encourage water conservation may lead to increased agricultural water use,which is called the irrigation efficiency paradox.This study assesses the impact of water and land policies on water-conservation in agriculture development.This study uses a coupled socio-hydrological model which includes water and land policies,irrigated land area,irrigation water use and an environmental indicator.The interactions between the human responses to the policies and the environmental changes are reflected in the model.The model is used to analyze the agriculture water-conservation development during 19982010 in Bayinguoleng Mongol Autonomous Prefecture, Xinjiang as an example with four policy scenarios including weak irrigation land control,low irrigation land control,medium irrigation land control and strong irrigation land control to analyze how agriculture water-conservation develops with different policy scenarios.With the weak irrigation land control scenario which represents the actual situation,the model effectively represents the process mechanism for the irrigation efficiency paradox.The analyses further shows that the low and medium irrigation land control scenarios stabilize the total irrigation water use after 2005 while the irrigation area quickly increases.The strong irrigation control severely limits the ability and the initiative of the water users.The total irrigation water use increased during 1998-2010 with small increases in the amount of irrigated land and the irrigation areas with water-conservation. These slowed the agricultural economic development.The results show that this framework of the water-use policies based on the coupled socio-hydrological model can be used to capture the mechanism that leads to the irrigation efficiency paradox as an effective evaluation method with theoretical support for making proper water and land policies for agriculture water-conservation in semi-arid areas.
中文关键词	社会水文学 ; 干旱区节水农业 ; 灌溉效率悖论 ; 水土政策
英文关键词	socio-hydrology water-saving agriculture in arid area irrigation efficiency paradox water and land policy
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING MULTIDISCIPLINARY
WOS研究方向	Engineering
CSCD记录号	CSCD:5765184
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234690
作者单位	清华大学, 水沙科学与水利水电工程国家重点实验室, 北京 100084, 中国
推荐引用方式 GB/T 7714	刘烨,田富强. 基于社会水文耦合模型的干旱区节水农业水土政策比较[J],2016,56(4):365-372.
APA	刘烨,&田富强.(2016).基于社会水文耦合模型的干旱区节水农业水土政策比较.清华大学学报. 自然科学版,56(4),365-372.
MLA	刘烨,et al."基于社会水文耦合模型的干旱区节水农业水土政策比较".清华大学学报. 自然科学版 56.4(2016):365-372.