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Conservation Biology, Volume 39, Issue 6, December 2025.Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 根据灌区盐量平衡原理，采用实际监测资料，对渭干河及其所属的库车、沙雅、新和县平原绿洲灌区进行盐均衡分析，深入探讨了临界灌排比的影响因素及其确定方法。研究结果表明：（1）灌排比的概念简捷明了，体现了干旱区水利建设、灌溉农业的特点，可作为衡量干旱区绿洲灌区水盐运动状态的一个指标，同时亦是进行灌排管理、规划设计的科学依据。（2）临界灌排比与灌溉引水量、排水量、河水含盐浓度、排水含盐浓度等因素有关。胃干、库车、沙雅、新和灌区监界灌排比分别为10．80，6．55，20．09，21．48。若没有特殊的地形地貌 ...
胡顺军 艾尼瓦尔·吾买尔 等
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, 2003 复合垂直流人工湿地系统(IVCW)堵塞后其水力特征会发生变化,通过示踪剂对小试和中试系统堵塞前后的水力特征进行了研究。结果表明,堵塞后IVCW出水流量减小,小试系统实际停留时间由堵塞前21.3h延长至32.5h,中试系统实际停留时间从19.4h延长至26.8h。IVCW堵塞后容易造成下行池表面积水 ...
詹德昊,吴振斌,张晟,成水平,傅贵萍,贺峰
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Review of Policy Research, Volume 42, Issue 6, Page 1496-1508, November 2025.ABSTRACT This study adopts a policy‐centric perspective to explore the complex relationship between sustainable nitrogen management (SNM) and the health risks associated with unsafe drinking water. The critical policy challenge lies in balancing the essential role of nitrogen fertilizers in achieving high agricultural productivity with their ...
Mingean Park +3 more
wiley +1 more source
Preliminary biogeochemical budget in Jiulong River Estuary [PDF]
, 2001 按照LOICZ的模拟指南 ,九龙江河口区采用单箱模型模拟其生物地球化学元素的通量。结果表明 ,九龙江河流输入进河口系统的DIP通量为 2 .81× 10 7mol/a ,交换流带入河口区DIP通量为 10 .93× 10 7mol/a ,因此 ,净沉淀量为 8.0 5× 10 7mol/a。九龙江河流输送进河口系统的DIN通量为 73.47× 10 8mol/a ,它远高于DIP的通量。因此 ,此河口区系统内部有 7.6 6× 10 8mol/a的差额才能达到平衡。The LOICZ ...
岳世平 +3 more
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A global indicator of species recovery
Conservation Biology, Volume 39, Issue 5, October 2025.Abstract Monitoring progress toward meeting global biodiversity goals involves several indicators, including, at the species level, the International Union for Conservation of Nature (IUCN) Red List Index (RLI) and the Living Planet Index (LPI). However, at present, there is no indicator specifically for tracking species recovery, despite this being ...
H. Resit Akçakaya +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2022 为全面揭示稻田水资源利用效用,在观测浅水勤灌(FI)、浅湿灌溉(WI)、控制灌溉(CI)和蓄水控灌(RI)处理试验小区田间水量平衡的基础上,建立了灌溉水、降水消耗通量区分方法及其利用效用评价指标体系,分析了水资源利用效用的灌排模式响应。结果表明:田间灌溉水和降水消耗量、有效利用率及水分生产力均受灌排模式的影响;2017-2018年各处理水资源消耗量为695.9~999.1 mm,其中CI处理水资源消耗量最低,并且消耗结构更加合理。CI处理的灌溉水生产力(IWP,5.392 kg/m3)、降水生产力 ...
李玥瑶 +3 more
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Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 三峡工程建成蓄水后,受淹耕地将遭到江水浸泡,积蓄在耕地上的有机污染物、N、P以及Cu、Cr等微量重金属将通过溶解、交换、扩散而迁移到江水中,增加江水中相应成份的含量。在调查了解三峡库区受淹土壤数量、类型的基础上,选择采集具有代表性的8个耕作土壤作样本,在实验的条件下模拟江水浸泡,求取单位重量的土壤在固—液相平衡状态下释放污染物的负荷量,进而计算三峡库区受淹土壤在江水浸没处于平衡时污染物释放进入水中污染物的量。结果表明,三峡水库受淹耕地污染物释放总量为181540.9t,其中以CODcr,BCOD5为主 ...
杨钢
doaj +2 more sources
Shuitu Baochi Xuebao, 2008 提出了一种地表-地下径流联合模拟的分布式水文模型,该模型综合考虑了地表径流、土壤水、地下径流之间的相互作用和水量交换,更真实地模拟了径流系统。选取太湖西苕溪流域进行了模型的应用研究,采用1km×1 km网格,就1988-2001年横塘村、范家村两水文站逐日、月实测径流资料进行径流模拟,确定了模型的基本参数。从模拟精度、参数需求、模型稳定性、水量平衡等方面分析模型的特点,研究表明:该模型参数相对简单,模拟精度较高,耦合运行稳定、快速,水量平衡分析详尽。模型可用作地表-地下径流相互作用 ...
李丽娇, 张奇
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