新疆典型草原土壤厚度空间变异和退化程度关系与原因

项目名称： 新疆典型草原土壤厚度空间变异和退化程度关系与原因

项目编号： No.41461048

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 地质学

项目作者： 艾克拜尔·伊拉洪

作者单位： 新疆农业大学

项目金额： 51万元

中文摘要： 近年来日益恶化的草原生态环境对我区生态安全构成了极大的威胁，草原退化已成为重大环境问题之一。本项研究以新疆伊犁地区山地草原土壤厚度空间分布和生态退化程度的关系为科学问题，以山地草原土壤为研究对象，利用CBERS和HJ卫星数据，解译草原退化等级，使用GIS、GPS及地统计学方法的克里格插值法处理外业调查和实测土壤厚度数据，制作研究区土壤厚度空间分布预测图、草原土壤质量退化图，将草原退化遥感数据与土壤厚度空间分布状态进行叠加分析，确定研究区不同退化程度草原土壤的面积、位置以及土壤厚度空间分布状态与草原土壤退化程度关系和原因的分析方法，为制定草原科学管理和退化草原自然恢复的保护策略提供依据，为国家实施草地退化治理工程提供技术支持。

中文关键词： 土壤退化过程；地统计学；土壤退化预测与预警；土壤退化评估；遥感监测

英文摘要： In recent years, the deteriorating ecological environment of grassland poses a great ecological security threats. The paper selected the montane and mountain meadow as the study area, monitored and classified the extent of degradated grassland by using the CBERS satellite data. Through the GIS,GPS technology and geostatistics methods, the Ordinary Kriging interpolation methods was adopted for processing the soil thickness test data, and the prediction map was produced which is the soil thickness spatial distribution to the study area. The research evaluated the degenerative grassland level by spatial overlay analyzing between the Remote Sensing data of degenerative grassland and soil thickness spatial distribution, and founded the analytical methods of the relation between the degradative grassland and soil thickness, ascertained the location and size of the different degradation levels at the grassland study area. This will offer the basic data for constituting the ecological environment protection strategy on the scientific management of grassland and the natural restore of degradative vegetation, and provides the technical support for the nation to formulate and implement sand sources control projec.

英文关键词： Soil degradation prcess;Geostatistics;Prediction and early warning of soil degradation;Soil degradation evalaction;Remontesenning monitring