中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 黄土丘陵区不同撂荒年限土壤入渗及抗冲性研究 水土保持学报 2017,31 (2) 61-66
Position: Home > Articles > Research on Soil Infiltration Capacity and Soil Anti-scouribility on Different Abandoned Land in the Loess Hilly Region Journal of Soil and Water Conservation 2017,31 (2) 61-66

黄土丘陵区不同撂荒年限土壤入渗及抗冲性研究

作  者：
李超;周正朝;朱冰冰;覃淼
单  位：
陕西师范大学旅游与环境学院
关键词：
土壤理化性质;土壤入渗性能;土壤抗冲性;黄土丘陵区;撂荒阶段
摘  要：
为了评价植被恢复对撂荒地土壤性状的影响,采用时空互代法,以黄土丘陵区不同年限撂荒地为研究对象,利用"环刀法"和原状土冲刷试验结合室内理化分析对其渗透性能和抗冲性进行了研究。结果表明:同一撂荒阶段,土壤初始入渗速率、稳定入渗速率、平均入渗速率和抗冲系数均随土壤深度的增加而下降;随着撂荒阶段延长,表层土壤初始入渗速率、稳定入渗速率、平均入渗速率和抗冲系数均为撂荒前期显著增大,后逐步趋于稳定,撂荒阶段间的差异显著大于土层深度的差异。在黄土丘陵区,利用Kostiakov模型回归参数a可有效表征初始入渗速率,相关系数为0.999 1,用方正三模型回归参数f_1和K可同时表征初始入渗速率和稳定入渗速率,相关系数分别为0.869 4和0.998 1,其初始入渗速率相关性较模型Kostiakov差,结合使用两者可更好的表征土壤入渗过程。
译  名：
Research on Soil Infiltration Capacity and Soil Anti-scouribility on Different Abandoned Land in the Loess Hilly Region
作  者：
LI Chao;ZHOU Zhengchao;ZHU Bingbing;QIN Miao;College of Tourism and Environmental Sciences,Shaanxi Normal University;
关键词：
soil physicochemical properties;;soil infiltration capacity;;soil anti-scouribility;;hilly Loess Plateau;;abandonment stages
摘  要：
In order to evaluate the influence of vegetation restoration on soil properties of the abandoned land,in the paper we adopt the spatio-temporal substitution method,and took the abandoned land at different stages in the Loess Hilly Region as the research object.By combining with laboratory experiments and physiochemical analysis,soil infiltration and anti-scouribility were studied through the point-source infiltration method and undisturbed soil erosion experiment.The results indicated that:at the same abandoned stage,initial infiltration rates(IIRs),stable infiltration rates(SIRs),average infiltration rates(AIRs),and anti-scouribility(AS)decreased with the increasing soil depth.As the abandoned stage extended,initial infiltration rates(IIRs),stable infiltration rates(SIRs),average infiltration rates(AIRs),and anti-scouribility(AS)in the surface layer increased significantly after the first pre abandonment,then gradually stabilized.The differences in abandonment phase was significantly greater than that between the soil layer.In the Loess Hilly Region,the Kostiakov model could effectively characterize the initial infiltration rate,and the correlation coefficient was 0.999 1.The Fang Zhengsan model parameters f_1 and K could simultaneously characterize the initial infiltration rate and stable infiltration rate,the correlation coefficients was 0.869 4 and 0.998 1,respectively.Its initial infiltration rate was not as good as that of the correlation of the Kostiakov model.The process of soil infiltration could be well described by combining Kostiakov model and Fang Zhengsan model.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46