Results 31 to 40 of about 19,463 (115)
Shuitu Baochi Xuebao, 2023 为探明盐渍化灌区不同灌排模式下土壤盐分及离子迁移及聚集规律,于2021年5—10月在巴彦淖尔市五原县盐碱化耕地改良示范区分别对"滴灌+明沟排水"与"黄灌+暗管排水"模式下农田进行土壤水盐监测与灌排水量监测,分析不同灌排模式下农田土壤盐分迁移分布规律,利用均衡分析探讨土壤盐分和盐分离子积盐及脱盐特征,为灌区的节水规划及盐渍化防治提供科学依据。结果表明:不同灌排模式下农田土壤均处于脱盐状态,黄灌与暗管排水模式下土壤脱盐效果相对较好,脱盐率为37.73%;滴灌与明沟排水条件下农田中出现HCO3-累积 ...
高宏远, 刘霞, 高晓瑜, 屈忠义
doaj
World Water Policy, Volume 12, Issue 3, August 2026.ABSTRACT Bengaluru, a primary metropolitan centre in India, is currently grappling with the dual crises of urban flooding and severe groundwater depletion. These challenges are driven by rapid urbanization, which has seen built‐up areas increase from 42% to 86% over two decades, resulting in a dramatic loss of vegetation and wetlands.
S. Biswas, S. V. B. Patel, B. Maheshwari
wiley +1 more source
Shuitu Baochi Xuebao目的为深入了解沙地樟子松人工林地下水变化规律及气候变化、人类活动对其驱动机制。方法以沙地樟子松人工林2018—2023年地下水埋深为研究对象，沙地草地地下水埋深为对照试验。利用双累积曲线法、灰色关联法、敏感性分析、相对贡献率和累积距平法分析气候变化、人类活动对科尔沁沙地南缘樟子松人工林地下水埋深变化的影响特征。结果研究期间，沙地南缘樟子松人工林地下水埋深变化趋势变小为波动减小（0.385 m/a）。各气象因素对其影响程度由小到大依次为降雨量<相对湿度<蒸发量<平均气温 ...
郎明翰 +4 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2017 为探求灌水量对棉田地温和生育期地下水补给棉花耗水比例的影响，设置了4种不同膜下滴灌灌水量（3 000，3 750，4 500，5 250 m3/hm2）进行野外均衡场试验研究。结果表明：灌水量一定时，浅层土壤受气温影响更为显著；同一气象条件下、同一土层地温和土壤有效积温均随灌水量的增加而降低，当灌水量增加75%时，有效积温降低11.3%，同时温度变幅也相对变小；灌水量越大，棉花耗水量及地下水补给作物水量也随之增大。当灌水量从3 000 m3/hm2增加到5 250 m3/hm2时，棉花的耗水量增加146.
史文娟, 何子建, 徐 飞
doaj
Functional Ecology, Volume 40, Issue 8, Page 2590-2601, August 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Permafrost thaw is reshaping nutrient dynamics in boreal forests, but its impacts on tree nutrient limitation and functional strategies remain poorly understood. Clarifying these responses is crucial for predicting the response of boreal forests to climate change.
Qiyue Fu +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2018 利用钻探和抽水试验资料，结合遥感资料和植被实地样方调查资料，分析了该区地下水富集特征和开发利用对生态环境的影响。结果表明：含水层的厚度是地下水富集的主控因素，二者呈正相关关系；基底古凹陷分布区含水层厚度较大，是地下水的富集区；埋深3 m是滩地地下水开采的约束水位，过量的开采可能造成湖盆滩地植被向沙地植被的演替或退化，甚至消亡，加快沙漠化进程；地下水开采对沙地、沙丘生长的耐干旱植被物种的影响较小。研究结果可为该区内水源地选址、地下水合理开发利用、水土保持和生态环境保护提供基础理论和数据。
范磊, 侯光才, 陶正平
doaj
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
Perceived costs as drivers of wildlife management preferences in rural Tanzanian communities
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Effectively managing human–wildlife interactions is crucial for fostering coexistence on shared landscapes. Management options are most effective when aligned with the preferences of people directly affected by wildlife, yet little is known about how socioecological factors influence these preferences.
Christian Kiffner +10 more
wiley +1 more source
Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca +23 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 通过探讨流域生态环境需水量概念及分析方法,概算了石羊河流域河流基础生态环境需水量、河流输沙需水量、流域湖泊湿地生态环境需水量和下游地下水合理补给需水量。结果表明:石羊河流域河流系统基础生态环境需水量为2.458 6×108m3,约占流域地表水资源来水量的16.93%;输沙需水量为5.30×108m3;流域湖泊湿地需水量为1.53×108m3,下游地下水补给需水量为1.758 6×108m3。生态环境需水量整合后,适宜的生态需水量约占水资源总量的36.49%~48.60%。
宋明伟 +3 more
doaj +2 more sources