欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
以环刀法观测安家沟流域土壤的入渗过程,并测定土壤的理化性质。然后通过比较Horton、Kostiakov和Philip模型的模拟精度,确定利用Philip模型对土壤入渗进行模拟。根据标定原理,对Philip模型进行标定,并通过比较,选用标定效果更好的标定因子αA来标定模型。再利用土壤理化指标分别建立标定因子αA以及稳定入渗率A的转换函数,最后根据土壤理化性质的空间分布,利用已建立的转换函数,实现标定因子αA和稳定入渗率A的空间化。结果显示：初始含水量为0.1g/g时,αA在0.703-1.049mm/min^0.5之间;稳定入渗率在0.142-0.251mm/min之间。该研究实现了大尺度的土壤入渗的空间化。
英文摘要：
The research on soil water infiltration is of great significance because soil erosion is serious in Loess hilly area. The research was based on the single- ring method to measure soil water infiltration characteristics and the physical and chemical properties of the soil in Anjiagou river basin. Then by comparing accuracy of simulation of Horton,Kostiakov and Philip models,we chose Philip model based on scaling theory for simulating soil infiltration,then chose the better factor αAfor calibrating model. After that,physical and chemical indexes of soil were used to build conversion function of calibration factor αAand stable infiltration rate A respectively. It was good for accuracy requirements of the space with correlation coefficients being 0. 776 and 0. 809. Finally calibration factor αAand stable infiltration A were specialized according to the spatial distribution of soil physical and chemical properties and the conversion function establishment. The results showed that when the initial water content was 0. 1g / g,αAwas between 0. 703 - 1. 049 mm / min^0. 5,the calibration factor value at the upper slope was generally higher than that at the lower slope. Steady infiltration rate was between 0. 142 - 0. 251 mm / min,and the value in shady slope was generally higher than that in sunny slope.
同期刊论文项目
同项目期刊论文
Effect of organic matter and calcium carbonate on behaviors of zinc adsorption-desorption on/from Ni
Interaction between Cd and Pb in the soil-plant system: a case study of an arid oasis soil-cole syst
Heavy metal accumulation by poplar in calcareous soil with various degrees of multi-metal contaminat
Effects of Ni stress on the uptake and translocation of Ni and other mineral nutrition elements in m
Bioaccumulation and translocation of cadmium in wheat (Triticum aestivum L.) and maize (Zea mays L.)
Effects on Ni and Cd speciation in sewage sludge during composting and co-composting with steel slag
PHYTOEXTRACTION POTENTIAL OF POPLAR (POPULUS ALBA L. VAR. PYRAMIDALIS BUNGE) FROM CALCAREOUS AGRICUL
Estimating realized and potential carbon storage benefits from reforestation and afforestation under
Physiological responses of Populus euphratica Oliv. to groundwater table variations in the lower rea
The canopy rainfall interception in actual and potential distribution of Qinghai spruce (Picea crass
Evaluation of water use of Caragana korshinskii and Hippophae rhamnoides in the Chinese Loess Platea
Restoration and conservation potential of destroyed Qinghai spruce (Picea crassifolia) forests in th
Characteristics of Caragana korshinskii and Hippophae rhamnoides stemflow and its significance in so
Soil CO2 efflux along an elevation gradient in Qinghai spruce forests in the upper reaches of the He
Soil water content and water balance simulation of Caragana korshinskii Kom. in the semiarid Chinese
SPECIES DISTRIBUTION MODELS TO ESTIMATE THE DEFORESTED AREA OF PICEA CRASSIFOLIA IN ARID REGION RECE
期刊信息
位置：