Arid
项目编号41301615
基于SWAP模型的民勤绿洲地下水灌溉研究
黄翠华
主持机构中国科学院寒区旱区环境与工程研究所
开始日期2014
结束日期2016
资助经费250000(CNY)
项目类别青年科学基金项目
资助机构CN-NSFC(国家自然科学基金)
语种中文
国家中国
英文简介The project analysis the effects of natural and human factors on ground water resources based on the discussion of water resources, ground water level and concentration changes, and clarify the reasons for deteriorating of ground water in the Minqin Oasis. Saline water is not beneficial to irrigated agriculture but it may still be the major irrigation water source in extensive arid regions, for example, due to the lack of freshwater, highly saline ground water was the main irrigation source in the last few decades in the Minqin oasis, northwest China. For sustaining the existing croplands and guaranteeing subsistence, local farmers have to exploit the ground water with high salinity to irrigate croplands, which leads to salt accumulation in the soil under strong evaporation. Soil salinization results in the dry out of vegetation, desertification, land encroachment and environmental degradation. The negative impact of saline irrigation water can be mitigated by implementing appropriate management of saline water, soil and plant.In this study, through the SWAP model which will be calibrated with experimental data to simulate the movements of water and salt in the soil, plant growth and productivities under different irrigation water and plant conditions. According to the simulation of micro data results to determine the different reasonable regional ground water use methods in the different kinds of irrigation areas in Minqin oasis, and determine the utilization of ground water in the whole study region. This study can provide theoretic support for reasonable utilization of local limited ground water resources and serve for sustainable development of agriculture and ecological environmental construct. Implementation of the project is not only has an important practical significance for promoting the rational use of ground water resources, ecological civilization construction and sustainable development of agriculture in the Minqin oasis but also has important scientific significance for water resources, vegetation protection and ecological civilization construction in arid areas.
中文关键词资源生态 ; 环境效应 ; 民勤绿洲 ; SWAP模型
来源机构中国科学院西北生态环境资源研究院
资源类型项目
条目标识符http://119.78.100.177/qdio/handle/2XILL650/346700
推荐引用方式
GB/T 7714
黄翠华.基于SWAP模型的民勤绿洲地下水灌溉研究.2014.
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