Results 21 to 30 of about 503,589 (161)
Shuitu Baochi Xuebao, 2000 利用汇集雨水对春小麦进行补灌方式、补灌时期及补灌量的试验表明，不论贫水年和丰水年，有限滴灌均能明显使作物节水增产。膜下滴灌方式的保墒节水效应和提高水分利用效率作用明显；春小麦的拔节一孕穗期是实施补灌的关键时期；春小麦全生育期滴灌补灌定额900m^3/hm^2，重点应加强促苗水、拔节水、孕穗水和灌浆水。
尚新明 黄占斌 等
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World Affairs, Volume 189, Issue 4, Winter 2026.ABSTRACT Anchored on the sustainable development goals (SDGs) and the Paris Agreement, which seek to limit the global average temperature to well below 2°C above pre‐industrial levels and pursue efforts to limit the temperature to 1.5°C, this study investigates how green energy finance and environmental taxes affect environmental quality, with an ...
Mohammed Musah +4 more
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Shuitu Baochi Xuebao, 2005 通过对保水剂和旱地龙这两种抗旱节水剂在苹果生长上的试验研究,分析了抗旱节水剂集成应用对土壤含水率、苹果产量、苹果品质(主要指可溶性固形物)的影响。结果表明,施用抗旱节水剂可增加土壤含水率和果实品质,增产达13365 06～19036 58kg/hm2,增加纯经济效益20570～34750元/hm2;水分利用效率提高,每1hm2节水892m3,同时对抗旱节水剂应用条件下的果树灌溉制度进行了研究,提出了不同降雨年型的灌溉制度。
韩玉国 杨培岭 刘洪禄 毕永刚
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Habitat and spatial trends of U.K. wintering waterbird populations over 50 years
Conservation Biology, Volume 40, Issue 5, October 2026.Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay +8 more
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Shuitu Baochi Xuebao, 2023 为探究河套灌区沈乌灌域在深度节水改造前后地下水环境的演变规律,针对地下水埋深、矿化度以及二者关系,通过区域布井、定位长期监测方式,采用经典地统计学理论,分析地下水埋深和矿化度的时空变化规律。结果表明:(1)深度节水改造后,沈乌灌域地下水埋深呈增大趋势,平均地下水埋深由节水改造前1.83 m增大到节水改造后3.36 m,增长率为83.9%。灌域中心和南部埋深偏大,局部产生漏斗,最大埋深至9.37 m,灌域北部埋深变化为0.6 m以下。(2)节水改造工程实施,使地下水矿化度显著增高,由节水改造前的1 296
杨舒雅 +7 more
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Integrative Conservation, Volume 5, Issue 3, Page 306-316, September 2026.ABSTRACT In today's rapidly urbanizing world, the survival of wildlife in cities faces significant challenges, and the attitudes of urban residents toward wildlife play a crucial role in their survival. Otters, as top predators in freshwater ecosystems who are highly sensitive to environmental changes, had once gone extinct in Shenzhen—a megacity ...
Changning Liu +5 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Esophageal squamous cell carcinoma (ESCC) remains associated with frequent local recurrence and distant metastasis despite advances in radiochemotherapy and immunotherapy, highlighting the need for therapeutic strategies that improve both local tumor control and systemic antitumor immune responses.
Dongdong Wang +7 more
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Shuitu Baochi Xuebao, 2008 以福建闽江上游裸露地为对照,封山育林、杉木和木荷林分为研究对象,分别采用水量平衡法与混合数量化模型对森林水库的调节水总量动态变化及其影响因素进行研究,以期加深对森林水库调水机理的认识。结果表明:木荷、杉木、封山育林林分及对照森林水库2个水文年中调节水总量分别为3 106.27,3 090.41,3 074.05,1 935.29 mm,分别占同期降雨量的97.71%,97.21%,96.70%,60.88%。雨季不同类型森林水库调节水总量均占年内森林水库调节水总量的48%左右,而旱季调节水总量则仅占18%
黄荣珍 +4 more
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Diabetic chronic wounds, characterized by a unique pathological microenvironment including persistent hyperglycemia, excessive reactive oxygen species (ROS), bacterial infection, and sustained inflammation, exhibit notoriously impaired and delayed healing processes. This study developed a multifunctional hydrogel therapeutic system (GOx@Zn‐MPN
Baowei Zhai +11 more
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Gongye shui chuli为研究获得菱形模块消雾节水冷却塔的消雾节水和节能特性，对某设计循环水量为5 000 m3/h的菱形消雾节水冷却塔的消雾性能、节水性能和节能性能进行了试验研究。建立了冷却塔消雾节水节能性能评价模型，通过现场试验获得冷却塔消雾节水和节能特性参数及其变化规律。结果表明：消雾节水冷却塔设计出塔空气相对湿度为85%，实测出塔相对湿度为82.28%，消雾指数为1.03，符合“零雾型”消雾冷却塔的要求。经菱形消雾冷凝模块换热后的冷凝水量为14.19 m3/h，冷却塔节水率为25.3%，冷凝节水效果好 ...
王为术 +6 more
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