干旱区生态环境知识资源中心(Arid): 粤北石漠化地区坡地入渗产流规律试验研究

Arid

	粤北石漠化地区坡地入渗产流规律试验研究
其他题名	Experimental Study on Process of Rainfall-Infiltration-Runoff Generation on Rocky Desertification Slope in North of Guangdong Province
	王明刚 1; 李森 2; 金昌宁 3
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2011
卷号	18 期号:6 页码:57-61
中文摘要	在粤北山区石漠化地区的裸地、草坡地和耕地等3种类型土地的坡面上,采用0.3,0.48,0.72,1.08mm/min4种降雨强度进行了36场人工降雨模拟试验。结果表明:在岩溶发育的石漠化地区,受基岩的非均质性因素影响,出流过程均呈现出具有一定波动性质的较为曲折的峰谷相间的特点;初期波动性较大,后渐趋稳定;达到稳定的坡面径流量与雨强之间具有十分明显的线性正相关关系。3种土地利用类型的坡面径流量的增幅随雨强增大而显著增加;增幅最为明显的是裸地。其入渗率虽也随雨强的增加而增加,却在增幅上明显小于前者,其中,裸地的增幅最小,基本上能保持稳定。在土壤前期含水量影响较小的情况下,产流时间均随着雨强的增大而迅速缩短,表现为十分明显的幂函数关系,3种土地利用类型均需达到一定降雨量后才能产流。
英文摘要	Simulated rain is a valid tool to examine soil erosion on sloping land.Experiments under 36 events of simulated rainfall with intensities of 0.3 mm/min,0.48 mm/min,0.72 mm/min and 1.08 mm/min and different duration were carried out on three different types of lands(bare land,grassland and farmland) in typical rocky desertification land slope in northern Guangdong Province.Results show that the runoff processes in different lands have features with the fluctuating nature of the valley and peak due to rock heterogeneity factors.The fluctuation range of initial runoff curve was large.There is a very clear linear relationship between reaching stable surface runoff intensity between the rainfall intensity.Land surface runoff intensites on three kinds of land use types increase with the rise of rainfall intensity.The largest and significant increment of runoff occurs on bare land.Although the infiltration rate also increases with the rise of rainfall intensity,the increment is significantly less than that of runoff;the least increment is observed on bare land,however,the infiltaration basically remains stable.Under the case of less initial soil moisture,the time of flow production rapidly shortens with increase of the rainfall intensity;there is an obvious power function relation between initial soil moisture and rainfall intensity.Surface runoff on three types of land produces when the rainfall amount meets a certain level.
中文关键词	降雨模拟 ; 石漠化 ; 坡地 ; 入渗 ; 产流 ; 粤北
英文关键词	simulated rainfall rocky desertification slope infiltration runoff north of Guangdong Province
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4410933
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227139
作者单位	1.广州科技贸易职业学院, 广州, 广东 511442, 中国; 2.西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国; 3.佛山大学资源与环境科学研究所, 佛山, 广东 528000, 中国
推荐引用方式 GB/T 7714	王明刚,李森,金昌宁. 粤北石漠化地区坡地入渗产流规律试验研究[J]. 西北师范大学,2011,18(6):57-61.
APA	王明刚,李森,&金昌宁.(2011).粤北石漠化地区坡地入渗产流规律试验研究.水土保持研究,18(6),57-61.
MLA	王明刚,et al."粤北石漠化地区坡地入渗产流规律试验研究".水土保持研究 18.6(2011):57-61.