[1]郭丽霞,沙占江,陶炳德,等.共和盆地塔拉滩土壤侵蚀潜在危险度评价[J].水土保持研究,2013,20(02):15-18.
　GUO Li-xia,SHA Zhan-jiang,TAO Bing-de,et al.Assessment on the Degrees of Soil Erosion Potential Risk in Tala Shoal of Gong-he Basin[J].Research of Soil and Water Conservation,2013,20(02):15-18.
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共和盆地塔拉滩土壤侵蚀潜在危险度评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年02期 页码: 15-18 栏目: 出版日期: 2013-04-28
Title:
Assessment on the Degrees of Soil Erosion Potential Risk in Tala Shoal of Gong-he Basin
作者:
郭丽霞1,2, 沙占江1,2,3, 陶炳德1,2, 郭丽红4, 张娟5
1. 青海师范大学 生命与地理科学学院, 西宁 810008;
2. 青藏高原环境与资源教育部重点实验室, 西宁 810008;
3. 中国科学院 青海盐湖研究所, 西宁 810008;
4. 江西省基础地理信息中心, 南昌 330000
Author(s):
GUO Li-xia1,2, SHA Zhan-jiang1,2,3, TAO Bing-de1,2, GUO Li-hong4, ZHANG Juan5
1. College of Life and Geography Science, Qinghai Normal University, Xi’ning 810008, China;
2. Key Laboratory of Environment and Resources in Tibetan Plateau, Ministry of Education, Xi’ning 810008, China;
3. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xi’ning 810008, China;
4. The Basic Geographic Information Center of Jiangxi Province, Nanchang 330000, China
关键词:
土壤侵蚀潜在危险度; 分级; 137Cs; GIS; 共和盆地塔拉滩
Keywords:
soil erosion potential risk; gradation; 137Cs; GIS; Tala Shoal of Gong-he Basin
分类号:
S157.1
摘要:
以青藏高原东北部的共和盆地塔拉滩草原为研究对象，采用地球化学放射性同位素——137Cs侵蚀模型来进行土壤侵蚀量的估算；通过野外调查以及土壤资料获得土壤容重和有效土层厚度；在ArcGIS 9.3下，由土壤年均侵蚀量、土层厚度和土壤容重得到抗蚀年限图。根据土壤侵蚀的特点参照水利部标准对土壤侵蚀潜在危险度进行分级，研究表明：共和盆地塔拉滩的土壤侵蚀潜在危险度以轻险型为主，面积为1 692.98 km2，占塔拉滩总面积的61.64%，从土壤侵蚀潜在危险指数（SEPDI）来看，为2.42，属于轻度危险区域。
Abstract:
Tracer technique of geochemical radioisotopes 137Cs was used to estimate the rate of soil erosion in the northeastern Tibetan Plateau, Tala shoal grassland of Gonghe Basin, field investigation and soil survey were adopted to establish the soil bulk density and soil thickness map. By average annual rate of soil erosion，soil bulk density and soil thickness, the years of soil loss by erosion was mapped, which was based on ArcGIS 9.3. According to the characteristics of soil erosion and standard issued by ministry of water resources, degrees of potential risk of soil erosion have been classified in Tala shoal. The results showed that mild type of soil erosion dominated the main area in this region, the area was 1 692.98 km2, accounting for 61.64% of the total area. For SEPRI, it was 2.42, belonging to a light risk zone.

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备注/Memo

收稿日期:2012-08-29;改回日期:2012-10-16。
基金项目:国家自然科学基金项目（40961015）；中国科学院“西部之光”项目；中国科学院“百人计划”项目；青海省科技厅应用基础研究项目（2012-Z-717）
作者简介:郭丽霞(1987-),女,山西昔阳人,硕士,主要研究方向为环境遥感与地理信息系统。E-mail:guolixia1015@163.com
通讯作者:沙占江(1971-),男(回族),甘肃平凉人,教授,博士生导师,主要从事环境演化、环境遥感和GIS应用领域的研究。E-mail:sazhanjiang@sina.com

更新日期/Last Update: 1900-01-01