Results 21 to 30 of about 827 (154)
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
doaj
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
doaj
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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Soil Hydrothermal Characteristics of Orchard Based on Leaf Area Index Coupled with STEMMUS Model [PDF]
[Objective] As a key parameter in the simulation study of ecosystem water cycle process, rapid dynamic simulation of leaf area index (LAI) can solve the limitation that the coupled soil water-vapor-heat-air model STEMMUS (simultaneous transfer of energy,
GAO Xiaodong +3 more
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Review of Policy Research, Volume 42, Issue 6, Page 1428-1449, November 2025.ABSTRACT In Colorado, cattle farming—the state's leading agricultural sector—is a significant source of methane emissions. In response, both the government and producers have initiated efforts to mitigate the effects of climate change and enhance sustainability.
Lauren Lecuyer, Mathilde Verrier
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Shuitu Baochi Xuebao, 2022 为探究在非灌溉季节施加生物炭对滴灌棉田耕层土壤水热特性和三相结构的调控效应。设置生物炭15(B1),30(B2),45(B3),60(B4),0(B0) t/hm25个施加量,分析其对新疆滴灌棉田非灌溉季节耕层土壤(0—40 cm)三相结构、总孔隙度、土壤温度和土壤含水率的影响。结果表明:与对照处理相比,施炭处理使土壤固相体积降低2.58%~10.74%,总孔隙度增加3.38%~12.05%;同时,施炭处理的融后土壤质量含水率较对照处理提高1.07%~2.65%;施炭处理的土壤导热系数降低 ...
邹瑞晗 +4 more
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土壤呼吸作用时空动态变化及其影响机制研究与展望. [PDF]
, 2009 测定不同陆地生态系统土壤呼吸速率及其时空波动,阐明其影响因子,对于全球碳素平衡预算和全球变化潜在效应估计是最为基本的数据。然而,有关土壤呼吸作用变异性及其影响因素的知识仍存在局限性,一些关键的过程和机制还有待阐明。该文综述了近年来土壤呼吸作用时空动态规律、影响机制和模拟方面的研究进展,指出环境因子和生物因子共同驱动着土壤呼吸作用的时间动态变化;土壤呼吸作用在不同时间尺度上还具有明显的空间异质性,这主要是植被覆盖、根系分布、主要的环境因素和土壤特性空间分布的异质性造成的 ...
周广胜., 韩广轩
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Effects of crop species on soil functions and soil multifunctionality are species‐specific
Functional Ecology, Volume 39, Issue 9, Page 2354-2369, September 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Soil multifunctionality is essential for sustainable agriculture, as soils not only need to support crop growth but also maintain soil biodiversity and sustain other critical ecosystem functions.
Zhaoqi Bin +4 more
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