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World Water Policy, Volume 9, Issue 3, Page 456-480, August 2023., 2023 Abstract Groundwater is a vital resource under threat in island communities. Karainagar, a 22 km2 island, is one of seven islands off the coast of Jaffna in Northern Sri Lanka, with its population of just about 11,000 persons, experiences seasonal water shortage, and salinity in groundwater as twin threats impacting on their lives.
Inthirakumaran Karthiga +3 more
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An emerging coastal wetland management dilemma between mangrove expansion and shorebird conservation
Conservation Biology, Volume 36, Issue 5, October 2022., 2022 Abstract Coastal wetlands around the world have been degraded by human activities. Global declines in the extent of important coastal wetlands, including mangroves, salt marshes, and tidal flats, necessitate mitigation and restoration efforts. However, some well‐meaning management actions, particularly mangrove afforestation, can inadvertently cause ...
Chi‐Yeung Choi +7 more
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Representation of the world's biophysical conditions by the global protected area network
Conservation Biology, Volume 36, Issue 2, April 2022., 2022 Abstract Protected areas (PAs) are often implemented without consideration of already existing PAs, which is likely to cause an overrepresentation of certain biophysical conditions. We assessed the representativeness of the current PA network with regard to the world's biophysical conditions to highlight which conditions are underprotected and where ...
Matthias F. Biber +2 more
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Shuitu Baochi Xuebao, 2002 对塔里木沙漠公路防护林地进行实地观测和试验 ,研究咸水灌溉条件下沙地盐分淋溶后在土壤中重新分配和运移的规律。结果表明 ,沙地可溶性盐灌溉淋溶与蒸发积累过程交替发生 ,时空分布上表现为年内根际各层土壤盐分含量逐渐降低 ,但随着土壤深度的增加 ,2 m以下土壤盐分增加。年际土壤各层盐分含量逐年减少 ,盐分被淋溶到地下水或下层土壤。土壤盐分分布状况是多种因素综合作用的结果 ,灌溉量、灌溉周期、灌溉方式 ...
周智彬 徐新文 等
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土壤盐分和含水量的空间变异性及其CoKriging估值——以黄河三角洲地区典型地块为例
Shuitu Baochi Xuebao, 2006 以黄河三角洲地区典型地块为研究区，运用经典统计学和地统计学相结合的方法研究了不同深度土层盐分和含水量的空间变异特征。结果表明：研究区土壤盐分和含水量普遍较高，土壤表层积盐作用明显；各层土壤盐分均属于中等变异强度，土壤含水量除表层为中等变异强度外，其余各层为弱变异强度；受结构性因素和随机性因素的共同作用，各土层盐分和含水量均具有中等的空间相关性。对Kriging插值结果分析表明，研究区各土层盐分和含水量在一定的范围内均存在着空间上的相关性和变异性，表层土壤盐分和含水量的空间分布主要受微地形和气候条件的影响，
姚荣江, 杨劲松, 刘广明
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Functional Ecology, Volume 39, Issue 2, Page 635-652, February 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Invasive plants are a major cause of the global biodiversity crisis; it is therefore crucial to understand mechanisms that contribute to their success. South‐western Australia is a global biodiversity hotspot with extremely low soil phosphorus (P) concentrations.
Dan Tang +7 more
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, 2019 Under the long-term impacts of influencing factors including water and soluble salts, the Site of Yarkhoto Ancient City which is a precious earthen heritage is subjected to irreversible deterioration.
Tarantino, Alessandro +2 more
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Mechanical properties and permeability characteristics of mudstone-slag-based water barrier material [PDF]
To investigate the influence of mudstone content and curing age on the mechanical properties and permeability characteristics of mudstone-slag-based water barrier materials, using waste sandstone from open pit coal mine stripping was used as aggregate ...
Jiangsen ZHU +6 more
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基于ArcGIS空间插值的河套灌区土壤水盐运移规律与地下水动态研究
Shuitu Baochi Xuebao, 2021 为探明河套灌区盐渍化半封闭小型灌域作物生育期土壤盐分和地下水变异规律，选取巴彦淖尔市五原县盐渍化土壤典型区域作为研究区。采用区域土壤—地下水信息定点监测法，选取149个采样点，30口地下水观测井，获得各项指标数据，并结合经典统计学、空间插值、相关性回归分析等方法，研究了土壤盐分及地下水动态空间变异性、不同深度土壤空间变化特征及其与地下水埋深相关性。结果表明：4—10月各土层土壤含盐量平均降幅为5.53%，研究区1 m深土壤处于脱盐状态，耕作层土壤盐分向深层土壤运移。地下水埋深主要影响因子为引黄灌溉水量 ...
马贵仁 +4 more
doaj
Shuitu Baochi Xuebao, 2004 对在海侵灾害最严重的莱州湾地区，在油葵生育期内利用不同浓度的海水直接灌溉两次，研究0～40cm土层土壤盐分及Na^ 、CI^-、Ca^2 、Mg^2 、K^ 含量的分布、迁移规律，为确定合适的灌溉定额和灌溉次数提供最基础的技术参数。结果表明：①60％以上浓度海水灌溉，5～40cm土层土壤盐分呈积累趋势，次生盐渍化明显；40％海水灌溉后轻微积盐．若无充沛的雨水淋洗，则须结合一定的农业措施以防造成次生盐害；20％海水浓度在灌溉定额为800m^3／hm^2时能保持土壤盐分的盈亏平衡。②Na^ 和CI ...
唐奇志 刘兆普
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