不同降雨侵蚀力条件下紫色土坡耕地的养分流失
况福虹; 朱波; 汪涛
刊名水土保持研究
2006
卷号13期号:6页码:139-141,144
关键词紫色土 坡耕地 暴雨 养分流失 降雨侵蚀力
其他题名Nutrient Loss from Slope Cropland of Purple Soil Under Different RainfaII Erosivities
通讯作者朱波
合作状况其它
中文摘要通过对川中丘陵区几次暴雨过程氮、磷流失的观测与分析,研究了不同降雨侵蚀力条件下的紫色土坡耕地的养分流失特征。结果表明在产流初始阶段,氮、磷流失严重,径流中养分输出浓度比较高,总氮最大可达8.0mg/L左右,总磷在1.9mg/L左右;坡耕地养分流失与土壤侵蚀的关系密切,氮、磷迁移以泥沙吸附态迁移为主,径流中的颗粒态氮、磷含量随降雨侵蚀力增大而增大,而溶解态氮、磷含量与降雨侵蚀力元明显相关。
英文摘要The characteristics of nutrient IOSS from slope cropland of purple soiI under different rainfalI erosivities were studied
from severaI rain—storm processes in the centraI Sichuan Basin.The results showed that the main IOSt nutrient happened at the
beginning of the runoff.The highest concentration of total N and total P exported in runoff was as high as 8.0 mg/L and 1.9
mg/L respectively.There was significantly positive correlation between the rainfall erosivity and the amounts of particulate
form which was dominative in the Iost nutrient of surface runoff;while dissolved nutrient in runoff was not interrelated with the
rainfall erosivity.
分类号Sl57
资助信息中国科学院知识创新工程重要方向性项目(KZCX2—413和KZCX3一Sw一33O)
语种中文
公开日期2010-07-21
内容类型期刊论文
源URL[http://ir.imde.ac.cn/handle/131551/1073]  
专题成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前)
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
推荐引用方式
GB/T 7714
况福虹,朱波,汪涛. 不同降雨侵蚀力条件下紫色土坡耕地的养分流失[J]. 水土保持研究,2006,13(6):139-141,144.
APA 况福虹,朱波,&汪涛.(2006).不同降雨侵蚀力条件下紫色土坡耕地的养分流失.水土保持研究,13(6),139-141,144.
MLA 况福虹,et al."不同降雨侵蚀力条件下紫色土坡耕地的养分流失".水土保持研究 13.6(2006):139-141,144.
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