Results 61 to 70 of about 5,140 (160)
Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE +7 more
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Shuitu Baochi Xuebao, 2011 为研究黄土高原水蚀风蚀交错带不同水分与密度处理的人工苜蓿和沙打旺草地土壤呼吸特征,分析了人工草地土壤呼吸对水分和密度的响应及其与环境因子的关系。结果表明:水分增加能够显著促进黄土高原水蚀风蚀交错带人工草地土壤呼吸速率 ...
李学章 +3 more
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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
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Shuitu Baochi Xuebao目的分析天山北坡土壤水分的时空变化特征及其影响因素，探讨耕地扩张对土壤水分的影响。方法基于2000—2020年的1 km日尺度土壤水分数据、土地利用数据、气象数据等数据，采用Theil-Sen Median趋势分析、Mann-Kendall显著性检验和Pearson相关系数分析，研究0~50 cm土层的土壤水分变化，并通过地理探测器模型探讨影响土壤水分的主要因素及其空间分异特征。结果2000—2020年，天山北坡0~50 cm土层土壤水分总体呈减少趋势，尤其在0~10 cm土层变化最显著 ...
李泓儒, 李超凡
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Shuitu Baochi Xuebao, 2017 为揭示塔克拉玛干沙漠公路防护林不同植物类型下土壤水热盐运移规律，于2015年5—9月采用CS656土壤水热盐三参数传感器对防护林内梭梭和沙拐枣根区土壤水分、盐分和温度进行实时监测，分析了气温与土壤温度的相互关系和土壤水盐动态变化规律。结果表明:(1)梭梭和沙拐枣根区土壤温度基本一致，气温与土壤温度呈极显著相关 ...
刘海东 +6 more
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Shuitu Baochi Xuebao, 2020 选择晋陕蒙接壤区永利煤矿排土场沙打旺草地、紫花苜蓿草地、沙棘林地和原地貌草地土壤水分为对象，研究其蒸散、剖面分布、时间变化等特征，以期揭示土体重构及不同复垦植被模式对土壤水分及其时间稳定性影响。结果表明：排土场3种人工植被条件下土壤平均含水量同原地貌草地相比提高了50.7%~62.3%，另外，沙打旺复垦草地土壤含水量显著低于苜蓿复垦草地和沙棘复垦灌木林地（均降低了7.2%）。沙打旺和苜蓿会导致深层（120—260，120—220 cm）土壤水分亏缺，但有利于20—80 cm的土壤水分的保持 ...
张燕乐, 甄庆, 张兴昌, 马炳召
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Remote sensing estimation on regional continuous daily evapotranspiration based on Richards equation [PDF]
Evapotranspiration (ET) is an important part of water cycle in nature, and the estimation of evapotranspiration on spatio-temporal scale has always been a hot issue. Remote sensing can estimate evapotranspiration on regional scale, but it is difficult to
Jinling KONG +4 more
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Shuitu Baochi Xuebao, 2008 通过对西南喀斯特不同石漠化过程中典型土壤水力特征的分析,研究了土壤水分参数与土壤水分库容特征及其影响因素。结果表明:(1)喀斯特地区土壤水分特征曲线呈先陡后缓的趋势,当土壤水吸力S潜在石漠化的普定灌丛黑色石灰土、玉米地棕色石灰土>轻度石漠化的荔波玉米地黄红壤,石漠化的发展减弱了土壤抗侵蚀能力。土层厚度、土壤有机质含量、土壤颗粒组成及0.3~0.03 mm孔隙度是影响土壤水分库容的主要因素。
李孝良, 陈效民, 周炼川, 方堃
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Synergistic Effects of No-tillage Combined with Mulching on Improving Soil Moisture Use and Potato Yield [PDF]
[Objective] Considering the severity of both spring drought and spring cold, and shallow effective topsoil in the southern mountainous areas of Ningxia Province, synergistic effects of no tillage combined with mulching on improving soil moisture use and ...
DUAN Ruibing +5 more
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Shuitu Baochi Xuebao, 1995 土壤水分循环水平是指一定时期内土壤水分波动变化的平均状态。它是判别土壤水分循环状况优劣的标志之一，土壤水分循环达到平衡状态，并不一定说明土壤水分循环处于最佳状态。只有同时对土壤水平稀状态水分循水平进行，杂技和有可能作出可靠的判断，在一定程度上，生态系统的循环水平可以通过人为措施来调节。
王孟本
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