ZHENG Jiang-kun,WEI Tian-xing,CHEN Zhi-fu,et al.Soil Water Holding Capacities and Infiltration Characteristics of Vegetation Community in Ecological Cropland Conversion Area, Northern of Shaanxi Province[J].Research of Soil and Water Conservation,2010,17(04):162-165.
陕北生态退耕区植被群落土壤贮水量与入渗特性
- Title:
- Soil Water Holding Capacities and Infiltration Characteristics of Vegetation Community in Ecological Cropland Conversion Area, Northern of Shaanxi Province
- Keywords:
- ecological cropland conversion; water holding capacity; soil water infiltration; principal component analysis
- 分类号:
- S715.3
- 摘要:
- 为了研究陕北生态退耕区土壤水文特性，对吴起县县城周边各植被群落土壤贮水与入渗特征进行了研究。结果表明：吸持贮水量和饱和贮水量之间、初渗率和稳渗率之间变化趋势基本相同，而滞留贮水量和饱和贮水量之间的相关性不大；土壤贮水量与入渗率在不同土地利用类型、地貌类型和坡向间变化；草本植被土壤水分入渗性能与坡度、坡向、株均高、容重、非毛管孔隙度、群落密度和海拔因子密切相关。
- Abstract:
- Soil hydrological characteristics was studied in Ecological Cropland Conversion Area,Northern of Shaanxi Province.Soil water holding capacities and infiltration characteristics of vegetation community had been tested around Wuqi county seat.The results showed: Change trend between absorpted water holding capacity and saturated water holding capacity,and the initial infiltration rate and the steady infiltration rate were almost the same.The correlation are not sufficient between the retented water holding capacity and saturated water holding capacity.The closely relative factors on soil water infiltration properties of herbaceous vegetation were slope,aspect,mean height of plant,bulk density,non-capillary porosity,community density and elevation.
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备注/Memo
收稿日期:2010-3-10;
基金项目:“十一五”国家科技支撑计划项目（2006BAD03A1206）
作者简介:郑江坤（1976- ），男，河南沙河市人，博士研究生，研究方向为水土保持与水文生态过程。E-mail：kjsl0129@163.com
通讯作者:魏天兴（1969- ），男，甘肃庆阳人，副教授，研究方向为防护林学与森林生态效益监测与评价。E-mail：weitx@bifu.edu.cn