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Effects of Winter Irrigation on Soil Water-heat-salt Migration and Crop Growth During Freezing-Thawing Period in Qingtongxia Irrigation District of Ningxia [PDF]
, 2023 [Objective] The effects of winter irrigation on soil water-heat-salt migration and crop growth during the freezing-thawing period were analyzed in order to provide a scientific basis for controlling soil salinization, and to ensure food security ...
Han Yuping +4 more
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Response of Soil Respiration to Storage Irrigation and Freeze-thaw Cycles in Extremely Arid Areas [PDF]
, 2022 [Objective] The effects of water storage irrigation and seasonal freezing and thawing on soil respiration were determined in order to improve the utilization efficiency of irrigation water resources, and save irrigation water resources at Shiyang River ...
Gao Yayu +3 more
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Shuitu Baochi Xuebao, 2021 为明确秋耕对季节性冻融土壤热状况的调控作用，对比分析了翻耕（FG）、免耕（MG）、垄沟（LG）、翻耕活性炭覆盖（FH）和翻耕秸秆覆盖（FJ）5种处理对土壤温度、冻融循环以及土壤温度梯度等影响的差异。结果表明：与传统FG处理相比，MG、LG、FH、FJ处理均减弱了土壤温度与气温的相关性，降低了整个冻融期土壤温度的升、降温幅度和不同冻融阶段土壤温度昼夜变化的变异性程度，维持土壤温度序列稳定的能力FJ>FH>LG>MG。FG处理最先冻结和融化，其余处理延缓土壤冻结和融化速度的效果为FJ>FH>LG>MG ...
孙开, 王春霞, 蓝明菊, 梁飞
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The responses of soil organic carbon and nitrogen contents, and their mineralization to global warming in rice paddy ecosystems [PDF]
, 2017 岩手大学博士（農学）doctoral ...
77545, TANG, Shuirong
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温度对贵州喀斯特黄色石灰土有机碳矿化、水稻秸秆激发效应和Q10的影响
Shuitu Baochi Xuebao, 2022 为定量揭示温度和秸秆还田对贵州喀斯特黄色石灰土土壤有机碳矿化、激发效应和温度敏感性的影响。以贵州喀斯特地区典型黄色石灰土为研究对象,采用13C稳定性同位素标记的水稻秸秆和土壤培养试验研究了15,25,35 ℃培养温度下土壤原有有机碳矿化速率、累积矿化量、激发效应和温度系数Q10对水稻秸秆输入和温度的响应。结果表明:15~35 ℃温度范围和0~60天培养时间内,贵州喀斯特黄色石灰土土壤有机碳、总有机碳、水稻秸秆有机碳和土壤原有有机碳矿化速率均培养1天达到峰值,培养1~30天土壤总有机碳 ...
段建军 +6 more
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Research Progress on Microbial Community Succession in the Postmortem Interval Estimation [PDF]
, 2023 The postmortem interval （PMI） estimation is a key and difficult point in the practice of forensic medicine, and forensic scientists at home and abroad have been searching for objective, quantifiable and accurate methods of PMI estimation.
Qing-qing XIANG, Li-fang CHEN, Qin SU, Yu-kun DU, Pei-yan LIANG, Xiao-dong KANG, He SHI, Qu-yi XU, Jian ZHAO, Chao LIU, Xiao-hui CHEN
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Shuitu Baochi Xuebao, 2020 为探究滴灌条件下水温与土温对覆砂土壤水热运移规律的影响，基于HYDRUS-2D构建了不同水土温度土壤水热运移数值模型，模拟分析了不同水土温度对覆砂土壤水分、温度动态变化的影响。结果表明：灌溉水温对土壤水热分布影响显著，随着温度升高，土壤湿润体内含水率减小，表现为35℃水温 < 20℃水温 < 5℃水温，灌溉水温对土壤剖面温度分布也有较大影响，表层0—15 cm范围内温度变化了5~10℃。相同水温条件下，随着土壤温度升高，土壤饱和导水率增大，湿润土体内体积含水率减小，表现为30℃土壤温度 < 15 ...
虎军宏 +3 more
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Shuitu Baochi Xuebao, 2022 土壤水热因子是影响作物生长发育的重要因子,尤其是在黄土高原自然植被恢复过程中。通过对黄土高原不同自然植被恢复阶段的土壤水分和温度的长期监测,研究植被恢复过程中土壤温度和水分的动态变化及其相关性。结果表明:8-10月草地群落的土壤温度显著高于其他群落,11月辽东栎林群落的土壤温度显著高于其他群落,随着植被恢复,土壤温度变化的范围和峰值均有不同程度的减小,土壤水分有所减少,但并不影响土壤水分随时间变化的总体趋势,不同植被恢复阶段土壤温度和水分呈显著负相关,植被恢复过程中土壤水分有一定的时间稳定性 ...
王俊 +4 more
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Effects of drying-wetting cycle caused by rainfall on soil respiration: Progress and prospect [PDF]
, 2018 Soil respiration is an important part of the carbon cycle in terrestrial ecosystems. The changes of soil respiration caused by rainfall directly affect global carbon balance.
朱连奇 +3 more
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, 2009 荒漠对气候变化具有高度敏感性,深刻认识和量化非生物因子对荒漠生态系统土壤呼吸的影响具有重要意义。采用自动CO2通量系统(Li-8100)监测了梭梭(Haloxylon ammodendron)、假木贼(Anabasis aphylla)和盐穗木(Halostachys caspica)群落生长季土壤呼吸及温度、土壤含水量等,深入分析了水热因子对土壤呼吸的影响。土壤呼吸具有不对称的日格局,最小值出现在8:00,最大值在12:00～14:00。土壤呼吸的季节格局与气温变化基本同步,最小值在生长季末期(10月)
张丽华 +3 more
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