高矿化度水灌溉林地土壤质量演变规律及定量评价

项目名称： 高矿化度水灌溉林地土壤质量演变规律及定量评价

项目编号： No.41271341

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 王永东

作者单位： 中国科学院新疆生态与地理研究所

项目金额： 75万元

中文摘要： 土壤质量的演变规律与定量评价是现代土壤学研究的主要内容，而高矿化度水灌溉则是影响塔里木沙漠公路防护林土壤质量的核心问题之一。因此，本项目拟以土壤质量变化的主要过程入手，通过对土壤物理、化学、生物学过程的研究，阐明在高矿化度水灌溉下土壤特性表观特征对土壤质量的响应机制；遴选表征土壤质量指标，运用综合、多指标量化手段，建立适宜于极端干旱区长期高矿化度水灌溉下土壤质量指标体系，定量评价长期高矿化度水灌溉下塔里木沙漠公路防护林土壤质量。这不仅有利于揭示极端干旱区高矿化度水灌溉下土壤物理-化学-生物等关联过程，而且对土壤科学的发展具有重要的补充与完善，也是极端干旱风沙地区人地关系的重要研究内容，同时也可为塔里木沙漠公路的可持续管护提供科学理论依据。

中文关键词： 高矿化度水；塔里木沙漠公路防护林；土壤质量；滴灌；定量评价

英文摘要： The evolution and quantitative evaluation of soil quality was the main content of the contemporary soil science, and irrigated with highly mineralized water was view as a study core for the effect of soil quality on Tarim Desert Highway shelter-belt. Therefore, this project plan to start with the main process of soil quality changes, through researches on soil physical, chemical and biological processes, clarify the response mechanisms that apparent characteristics of soil properties on soil quality under high-salinity water irrigation. Select indicators that characterized the soil quality, use integrated, multiple indexes method, establish a soil quality indicators which was suitable for the soil under long-term high salinity water irrigation in extreme arid region, also quantitative estimation soil quality of the Tarim Desert Highway shelter-belt. It's not only avail to reveal the soil physical-chemical-biological associated processes under high-salinity water irrigation in extremely arid region, but also has an important supplement and perfect effect to the development of soil science, was also an important study of man-land relationship in extremely arid desert, as well as provides scientific theories for the sustainable management of the Tarim Desert Highway .

英文关键词： highly mineralized water；Tarim desert highway shelterbelt；soil quality；drip irrigation；quantitative evaluation