Results 61 to 70 of about 1,207 (174)
Shuitu Baochi Xuebao, 2017 为揭示排土场复垦区不同土地利用类型土壤的水源涵养功能，采用野外实地双环入渗试验和室内理化分析方法，系统地研究了海州露天煤矿排土场复垦区不同土地利用类型（乔木林地、灌木林地、农用地、荒草地）土壤入渗特性及其影响因素。结果表明：不同土地利用类型下的土壤初始入渗率、稳定入渗率和累计入渗量均表现为乔木林地>灌木林地>农用地>荒草地；不同土地利用类型下土壤入渗过程的拟合优度存在差异，G-P综合模型、Kastiakov模型、Horton模型的平均拟合优度依次为0.926，0.908，0.905。G ...
吕 刚 +4 more
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International Journal of Applied Linguistics, Volume 35, Issue 1, Page 168-192, February 2025.Abstract Despite the abundance of pedagogical reforms conducted in task‐based language teaching (TBLT), few studies have fully explored the adaptation of TBLT to cater to the specific language learning requirements and cultural contexts of local communities.
Jinmiao Lu, Qing Ma, Shaofeng Li
wiley +1 more source
Servicesheds connect people to the landscapes upon which they depend
People and Nature, Volume 7, Issue 1, Page 112-126, January 2025.Abstract Ecosystem services (ES) are benefits people receive from nature. To sustain these benefits, we need to spatially connect communities benefitting from specific ES with landscape features that generate the ES. A variety of process‐based models support ES assessments by estimating the biophysical supply of ES that comes from landscapes.
Yiyi Zhang +7 more
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Shuitu Baochi Xuebao, 2006 云南小江流域土壤侵蚀十分严重，为揭示其侵蚀机理及探索有效治理方法，对其典型土壤——燥红土不同土地利用类型开展了人工降雨产流产沙试验，并运用水分测定仪（TRASE 6050X1 TDR）对土壤水分变化进行动态监测。结果表明：灌草地蓄水拦沙能力最强，坡耕地（坡式梯地沿等高线开挖垄沟种植花生）次之，裸坡地最弱；同种利用类型土壤不同土层传输水分和吸收水分能力不同；在较大雨强（0．61mm／min）且充足降雨条件下，小江流域燥红土地表产流特征经历了以超渗产流为主、超渗产流和饱和产流同时进行 ...
王道杰 +4 more
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A multitaxonomic assessment of Natura 2000 effectiveness across European biogeographic regions
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract The Natura 2000 (N2K) protected area (PA) network is a crucial tool to limit biodiversity loss in Europe. Despite covering 18% of the European Union's (EU) land area, its effectiveness at conserving biodiversity across taxa and biogeographic regions remains uncertain.
Lorenzo Ricci +10 more
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Experimentally testing animal responses to prescribed fire size and severity
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract Deserts are often highly biodiverse and provide important habitats for many threatened species. Fire is a dominant disturbance in deserts, and prescribed burning is increasingly being used by conservation managers and Indigenous peoples to mitigate the damaging effects of climate change, invasive plants, and land‐use change. The size, severity,
Tim S. Doherty +4 more
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Shuitu Baochi Xuebao, 2016 为探讨同时率定CN值和初损率2个参数得到的模拟结果是否比单独率定一个参数更为理想，且在不同土地利用类型下SCS-CN模型是否均适用，选取了密云水库上游石匣小流域为研究区域，根据石匣小流域坡面试验小区2006—2010年实测降雨-径流数据和SCS-CN模型的计算公式，在0.05～0.40范围内，等间隔选取8个不同的初损率值，并利用算术平均值法反推各初损率值条件下对应的CN值，以纳什效率系数为SCS-CN模型的适用性评价参数，确定裸地、耕地、草地和林地4种不同土地利用类型下模拟最佳的CN值与初损率 ...
何杨洋, 王晓燕, 段淑怀
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Shuitu Baochi Xuebao, 2007 以干旱半干旱脆弱区霍林河流域下游沿岸为研究靶区，利用1954年和1964年地形图．1986，1996和2000年的TM遥感影像作为基本信息源，在GIS支持下，建立土地利用空间数据库。引用空间测算模型和累计转换概率，分析不同时段各土地利用／覆被类型的动态和转换变化，揭示霍林河流域下游沿岸近50年土地利用／覆被变化过程及规律。耕地和草地是霍林河流域下游沿岸的主要土地利用／覆被类型，次之为盐碱地，湿地和林地比例较小，居民地和沙裸地最小。耕地和草地始终相反的幅度变化方向说明二者密切的相互转换关系 ...
卢晓宁, 邓伟, 张树清
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Distribution characteristics and influencing factors of iron-rich groundwater in Xining City [PDF]
Groundwater is an important water supply source in Xining City. Previous works have found that iron-rich groundwater limits water development and utilization.
Bei LI +11 more
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Shuitu Baochi Xuebao, 2006 以重庆岩溶地区为例，探讨岩溶地区土壤类型的多样性与不同土壤类型上土地利用方式的多样性。结果表明重庆市岩溶区黄壤、石灰土和黄棕壤是本区主要土壤类型，土壤景观的多样化和空间异质化程度不高，但各类景观分布比例不均匀，土壤景观嵌块体呈现出复杂的几何形状。除了山地草甸土以林地和草地、棕壤以林地为主要景观外，另外的9种土壤类型上都是以耕地和林地为主要的景观，农、林用地在景观空间格局的结构和功能中起主导作用。由于各类土壤性质和分布特点的不同，耕地和林地在各类土壤上的分配比例存在着明显的差异 ...
王子芳 +6 more
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