|
|||||
|
|
| 天然降雨条件下不同水土保持措施红壤坡地养分流失特征 | |
| 引用本文： | 刘洋,张展羽,张国华,左长清,赵月芬.天然降雨条件下不同水土保持措施红壤坡地养分流失特征[J].中国水土保持,2007(12):14-16. |
| 作者姓名： | 刘洋 张展羽 张国华 左长清 赵月芬 |
| 作者单位： | 1. 北京市水利规划设计研究院,北京,100044 2. 河海大学,农业工程学院,江苏,南京,210098 3. 河海大学,农业工程学院,江苏,南京,210098;江西省水土保持科学研究所,江西,南昌,330029 |
| 摘 要： | 在江西省水土保持科学研究所科技园坡度为12°的红壤坡地上,设置3种水土保持措施径流小区,与对照进行比较,首次对该区域天然降雨情况下的养分流失特征进行了初步研究,结果表明:产流过程中全N流失最多,全P较少;在产流前期养分流失浓度变化较大,后期则趋于稳定;与对照相比,3种水土保持措施均能明显地减少养分流失,其中前埂后沟梯壁种植百喜草的水平梯田果园效果最好;在大雨强条件下,试验小区养分流失以泥沙携带为主。 |
| 关 键 词： | 水土流失 养分流失 红壤 |
| 文章编号： | 1000-0941（2007）12-0014-03 |
| 收稿时间： | 2007-08-06 |
| 修稿时间： | 2007年8月6日 |
Characteristics of Red Soil Nutrient Loss of Sloped Land with Different Soil and Water Conservation Measures under the Conditions of Natural Rainfall |
|
| LIU Yang,ZHANG Zhan-yu,ZHANG Guo-hua,et al..Characteristics of Red Soil Nutrient Loss of Sloped Land with Different Soil and Water Conservation Measures under the Conditions of Natural Rainfall[J].Soil and Water Conservation In China,2007(12):14-16. | |
| Authors: | LIU Yang ZHANG Zhan-yu ZHANG Guo-hua |
| Institution: | LIU Yang1,ZHANG Zhan-yu2,ZHANG Guo-hua2,et al. |
| Abstract: | It sets up runoff plots with 3 kinds of soil and water conservation measures on 12° red soil slopes of research fields of Jiangxi Provincial Institute of Soil and Water Conservation,compares with the check area and conducts preliminary study on characteristics of nutrient loss under the conditions of natural rainfall of the region for the first time.The outcomes show that during the process of runoff-producing,the loss of total N is the most and total P less;before runoff-producing,the concentration variation of nutrient loss is greater and becoming stable in later stage;comparing with the check area,all the 3 kinds of soil and water conservation measures can notably reduce nutrient loss,of which,the effect of orchards on leveled terraced fields planted zinnia in the front and back sides of the terraces is the best and;the nutrient loss of the plots is mainly carried out by sediment under the conditions of strong rainfall intensity. |
| Keywords: | soil and water loss nutrient loss red soil |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |