Results 1 to 10 of about 1,960 (121)
Soil Particle Settlement Sorting and Distribution Characteristics of Carbon, Nitrogen and Salt During Gradual Thawing [PDF]
, 2023 [Objective] The classification of sediment particles and the accompanying distribution characteristics of carbon, nitrogen and salt in the process of soil thawing layer by layer under snowmelt runoff scenario were analyzed in order to identify the ...
Hu Yaxian +5 more
core +1 more source
Soil Salinization Characteristics of Different Land Use Types in a Typical Oasis Irrigation Area of Lower Tarim River [PDF]
, 2023 [Objective] The soil salinization characteristics under different land use types in extremely arid regions were analyzed in order to provide support for the sustainable efficient utilization of regional land resources.
Baiyun Gang +6 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为了解内蒙古河套灌区农田防护林内冻融期土壤水盐状况及运移规律, 在2020年10月至2021年4月实测土壤水分、盐分、温度及相关气象数据, 并进行相关分析。结果表明: 土体表层温度波动较大, 随土层深度加深土体温度变化逐渐平缓。冻结期气温下降速率低于消融期气温回升速率, 加之土壤温度变化的滞后性, 冻结期比消融期长10天左右。季节性冻融冻结作用导致表层土壤含水量升高、深层含水量降低, 消融解冻时期, 土壤含水量逐渐降低。两侧林带农田边缘(0.3 H、4 H)土壤表层含水量相比农田内部(1 H、2 H、3
郝可心 +4 more
doaj
Shuitu Baochi Xuebao, 2000 在分析和总结国内外有关一维积水入渗条件下土壤水盐运移规律研究成果的基础上，针对盐碱土水盐运动的基本特征，通过室内一维土壤水盐运移过程的试验研究，分析了土壤盐分浓度分布规律，为盐碱地的开发利用提供了科学依据。
吕殿青 王文焰 等
doaj +2 more sources
Progress in developments and applications of the HYDRUS model and associated coupling model packages [PDF]
HYDRUS model is widely used in agricultural irrigation and pollution transport because it can comprehensively consider the movement of water, heat, and pollutants in the soil-plant-atmosphere system.
Bei ZHANG +5 more
core +1 more source
Effects of PBAT on Soil Water and Salt in Maize Root Zone and Maize Yield in Saline-alkali Land [PDF]
[Objective] In order to reduce soil pollution caused by plastic film, the application effect of using PBAT fully biodegradable plastic film instead of ordinary PE plastic film combined with drip irrigation to grow maize in mild secondary salinized soil ...
HOU Jiana +6 more
core +1 more source
Submarine fresh groundwater discharge estimation in the intertidal zone based on dynamic salinity simulation [PDF]
Currently, limited studies focused on the variations in submarine fresh groundwater discharge rates, seawater recirculation rates, and their respective proportions with tidal level change in sandy intertidal zones.
Chunlei LIU +5 more
core +1 more source
Shuitu Baochi Xuebao, 2003 滴灌入渗结束时的水盐特征是覆膜滴灌蒸发的初始条件,近年来覆膜种植技术的大面积推广使研究覆膜灌溉的水盐特征很有必要。通过非充分供水条件下滴灌入渗的三维水盐运移实验,分析了湿润锋运移的函数特征和椭圆方程,并对径向含水率剖面进行了研究。基于水分特征,分析了入渗中径向含盐率、径向浓度和径向Na 浓度剖面,并做出了相应水盐特征的等值线图。
李毅 王文焰 等
doaj +2 more sources
, 2007 介绍了同位素技术的原理,初步探讨并提出了同位素技术应用在气候变化对内陆河流域水循环影响研究中的思路和重点,主要包括水汽来源分析、区域降水线与蒸发线特征分析、氘盈余的分布特征及古气候信息的提取等方面。通过创新气候变化背景下的内陆河流域水循环变化的研究模式 ...
宋郁东, 毛炜峄, 陶辉, 韩俊
core
Research progress on the response characteristics and indicative significance of microorganisms to seawater intrusion [PDF]
Seawater intrusion is a global environmental geological issue that poses a serious threat to the water supply security and ecological environment of coastal cities.
Chuanshun ZHI +4 more
core +1 more source