土壤水分动态随机模型研究

来源 :2015年中国环境科学学会年会 | 被引量 : 0次 | 上传用户:voyage36
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
土壤水是联系陆地表层水文过程与生态过程的纽带.由于影响土壤水分动态的诸多因素如降雨、植被组成、植被盖度及植物根系、土壤质地等都具有随机性,这就决定了进行土壤水分动态随机模拟的必要性.本文首先介绍和回顾了受到学者广泛认同的Laio土壤水分动态随机模型,然后综述了该模型在多个环境条件下的应用成果和主要结论,并指出了该模型的一些不足,最后对该模型未来的应用和发展方向进行了展望,提出应加强理论模型的应用研究,土壤水分动态随机模型的有效性和实用性需要用足够的实验数据来证实,应加强土壤水分功态随机模型与农田土壤水量平衡模型、流域水平衡等模型的嵌套,使得土壤水分动态随机模型在土壤水平衡分析及流域水平衡分析中得以广泛的应用,以期促进我国土壤水分动态模拟研究及其在干旱半干旱区的应用.
其他文献
Solvent extraction and stripping of boron brine by using 2,2,4-trimethyl-1,3-pentanediol was established.The choice of the diols is due to better extraction reagents for boron and it is proved by repo
In order to resolve the problem of high content of Zn and Cu in cyanide barren solution of gold industry,the exchange resin(201×7)was used.The treatment process and kinetics of the adsorption of Cu on
An exploratory study on soil contamination of heavy metals was carried out surrounding a historical abandoned Pb-Zn smelter in Hunan province,China.The distribution of Cd,Zn,Pb,Cu and Ni and their che
This paper focused on the effects of surfactant sodium dodecyl sulfate(SDS)addition on waste activated sludge(WAS)hydrolysis and short-chain fatty acids(SCFAs)accumulation in digestion.
The objective of this study is to develop a technology using granular red mud(GRM)as an adsorbent substance,and to examine its absorbent ability of remove methylene blue(MB)from wastewater.
The impurity effects on zinc electrowinning in an alkaline electrolyte prepared from waste products leaching process have been investigated.It was found that most of impurities can be precipitated qua
Bauxite reserves in the Guizhou region ranks second in the country,but the ore properties are special.With various measurements such as MLA and SEM,a detailed study on process mineralogy of the sample
The abandoned or expired chemicals from schools laboratories were considered as a waste.To disposal those spent chemicals,the suitable recycling technology according to the regulations,policies,and co
F and Cl are the harmful elements to zinc metallurgy.How to remove them efficiently and economically from the intermediate material is one of the bottleneck for present zinc extraction.
“十二五”期间国家在京津冀等重点区域和重点行业开展了挥发性有机物污染防治工作,要求全面开展挥发性有机物污染防治以及挥发性有机物总量减排,而我国挥发性有机物污染的基础研究与排放管控体系建设相对滞后.为实现天津市工业源挥发性有机物排放的有效监管,根据国家与天津市环境管理的需求以及天津市工业源挥发性有机物排放特征,开展天津市地方工业企业挥发性有机物排放控制标准制定,以完成国家确定的挥发性有机物减排指标为