Results 81 to 90 of about 84,650 (211)
Contribution of Different Processes in Wetland Soil N_2O Production in Different Restoration Phases of the Yellow River Estuary, China [PDF]
采用时空替代法,选择黄河口生态恢复前后未恢复区(R_0)、2007年恢复区(R_(2007))和2002年恢复区(R_(2002))的芦苇湿地为研究对象,分析了生态恢复工程对湿地土壤N_2O产生不同过程与贡献的影响. 结果表明,尽管不同恢复阶段湿地土壤N_2O总产生量差异明显,但总体均表现为N_2O释放. 恢复区湿地土壤的N_2O产生量大于未恢复区.
孙万龙 +4 more
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ABSTRACT Water governance has emerged as a critical analytical framework for addressing the complexity of socioecological water systems in contexts of increasing climate vulnerability and anthropogenic pressure. This study presents a systematic review and bibliometric analysis of 50 scientific articles indexed on water governance published between 2018
Roger Pichis‐García +1 more
wiley +1 more source
ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
wiley +1 more source
为探究不同灌水和施肥条件对河套灌区不同生育期玉米生长的影响,以玉米"金苹628"为材料,分别研究了低水(1 800 m3/hm2)、中水(2 250 m3/hm2)、高水(2 700 m3/hm2)3个灌水水平,低肥(300 kg/hm2)、中肥(375 kg/hm2)、高肥(450 kg/hm2)3个施肥水平,并以当地一般灌水量和施肥量为对照(CK),共10个处理在苗期、拔节、抽雄、灌浆、成熟期对土壤水分、养分和玉米生长的影响。结果表明:拔节期以后,土壤平均含水率呈下降趋势;抽雄和灌浆期玉米耗水量最大,
戴嘉璐 +4 more
doaj
ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
以北京市重度火烧迹地油松人工林为对象, 基于原位采样法和室内浸泡法于2020年7—12月在对照样地和火烧样地采集凋落物样品并测定分析其现存量、持水量、有效拦蓄量等指标, 探究林火干扰下凋落物的分解及水文效应, 为更好促进森林水源涵养功能以及水土保持功能提供依据。结果表明: (1)油松人工林半分解和完全分解层凋落物平均现存量分别为16.18(叶占比>80%), 31.88 t/hm2, 平均厚度分别为2.77, 2.79 cm; 与对照相比, 火烧后半分解层凋落物厚度及现存量分别降低39.35%, 53 ...
邱聪, 秦倩倩, 郑大柽, 刘艳红
doaj
Development of near infrared (NIR) measuring system for single kernels of grains and its application to rice quality evaluation [PDF]
Thesis (Ph. D. in Bioresource Engineering)--University of Tsukuba, (A), no.
Rittron Ronnarit
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ABSTRACT This study presents an assessment of four representative expansive additives—calcium sulphoaluminate–calcium oxide, magnesium oxide, sodium lauryl sulfate, and sodium abietate—and their effects on the expansion behavior, mechanical development, and microstructural characteristics of cemented paste backfill (CPB).
Lijie Guo +5 more
wiley +1 more source
金沙江干旱河谷区坡耕地固氮植物篱种植模式的研究结果表明 ,植物篱与农作物利用土壤水分的深度不同 ,植物篱在旱季主要利用 5 0 cm以下深层土壤水分来度过严酷的旱季 ,在雨季促进水分向深层土壤渗透 ,提高 0~ 15 0 cm土层贮水量 ;据剖面含水量的变异程度可将剖面分为 4个层次 :水分剧变层、水分渐变层、水分弱变层和水分稳定层 ,其中植物篱模式下剧变层为 0~ 30 cm,渐变层为 30~ 10 0 cm ,弱变层为 10 0~ 15 0 cm,稳定层在15 0 cm以下 ,而传统耕作坡地和裸坡地
孙辉 唐亚 赵其国 张炎周
doaj
Behavior and phytotoxic activity of pethoxamid in soil under different moisture conditions [PDF]
Thesis (Ph. D. in Agricultural Science)--University of Tsukuba, (A), no.
Dhareesank Arm
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