Results 41 to 50 of about 1,939 (128)
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract Multifunctional landscapes that support economic activities and conservation of biological diversity (e.g., cattle ranches with native forest) are becoming increasingly important because small remnants of native forest may comprise the only habitat left for some wildlife species. Understanding the co‐occurrence between wildlife and disturbance
Juliana Vélez +4 more
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A standard approach for including climate change responses in IUCN Red List assessments
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract The International Union for Conservation of Nature (IUCN) Red List is a central tool for extinction risk monitoring and influences global biodiversity policy and action. But, to be effective, it is crucial that it consistently accounts for each driver of extinction.
Giordano Mancini +7 more
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中西医结合护理Objective To evaluate the mind-mapping combined with scenario simulation method in clinical teaching and training of cardiopulmonary resuscitation skills of nursing students.
ZHAO Lina (赵丽娜) +9 more
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Shuitu Baochi Xuebao, 2023 极端降水对青藏高原生态—水资源—农业的可持续发展具有重要影响。基于CMIP6(coupled model intercomparison project phase 6)最新发布的大气环流模式(general circulation models,GCMs)日尺度降水数据,系统评估GCMs对青藏高原历史极端降水特征的模拟能力,并对未来时期极端降水进行预估。结果表明:多模式集合(multi-model ensemble,MME)能够更好地捕捉极端降水的时空分布特征,其中R95p、SDII、R1mm ...
张文青 +4 more
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基于系统动力学模型的电力系统等效惯量时空演变趋势研究 [PDF]
全球能源互联网随着风电、光伏等新能源发电渗透率的不断提高，电力系统等效惯量水平不断下降且空间分布不均的特性日益凸显。而电力系统维持频率稳定的能力与系统等效惯量水平息息相关，因此明确电力系统等效惯量时空演变趋势具有重要意义。基于系统动力学模型，对电力系统等效惯量的时空演变趋势进行了分析。首先，明确新能源电力系统等效惯量概念及有效惯量组成，并分析惯量响应过程；其次，基于系统动力学模型，在考虑地域、技术进步率、综合成本等多因素影响下，对中国各地区光伏、风电、火电、水电、核电2025—2060年间的装机容量进行预测；最后 ...
刘学成 +7 more
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Research progress and reflection on development path of smart dams [PDF]
Climate change and strong human activities have brought new challenges to dam safety management, and traditional safety management concepts and technologies are difficult to meet the requirements of high-quality dam safety management in the new stage ...
LIU Liuyan1, 2 , LI Hongen1, 2, 3, GAO Changsheng1, 2, 3, XIANG Yan1, 2, 3
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Shuitu Baochi Xuebao, 2007 在分析阿瓦提灌区水土资源现状的基础上,探讨限额配水条件下该灌区水土资源的新平衡及可持续利用。结合RS、GIS技术,应用水盐平衡模型,从区域的4个水平衡和盐平衡等多个角度,首先模拟分析了1990~2004年该灌区的水土资源平衡现状;然后,根据灌区近期规划,设置情景方案预测分析了该灌区未来15年的水土资源平衡,进而提出水土资源开发利用与优化配置战略。预测结果表明,如果增加灌区内1.73×104hm2弃耕地或已开垦的未耕地,在调整种植结构和加大节水力度的同时,优先开发利用约1.1 ...
钟瑞森, 董新光, 杜卫东
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Shuitu Baochi Xuebao[目的] 优化国土空间开发格局和统筹协调"三生"空间格局配置,是实现未来可持续发展的重点任务和根本途径。[方法] 以云南省土地利用为基础,结合自然和社会发展因素,采用MOP-PLUS耦合模型模拟2030年经济优先、生态优先和协同发展3种情景下"三生"空间及效应变化。[结果] (1)3种情景下经济效益分别增长40.29%,32.10%,34.79%,生态效益分别减少0.89%,0(未变),0.06%,生境质量均值分别下降0.78%,0.38%,0.43%,空间冲突强度均值分别增长2.79%,下降1.21%,
林志 +6 more
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Characteristics of Land Use Change and Evaluation of Ecological Sensitivity in Chongqing [PDF]
[Objective] Chongqing, as the economic center of the upper reaches of the Yangtze River in China and a barrier to ensure ecological security in the middle and lower reaches of the Yangtze River, is a typical ecological functional and fragile area in ...
GOU Qiantao, WU Han, XIE Xianjian
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Shuitu Baochi Xuebao, 2011 利用WEPP坡面土壤流失模型,基于典型区的土地整理项目状况,模拟不同坡度条件下,梯田空间配置的水土保持效应,通过对坡度、降雨量和梯田层次的设置,分析30种情景模式下,土壤流失量和产沙量的变化规律。结果表明,基于物理过程的WEPP机理模型能够较好地定量模拟土壤在坡面上的流失情况。总体上看,梯田建设对于土壤流失量和产沙量都具有明显的影响:对于土壤流失量来说,梯田调控了土壤在坡面上流失的空间特征,降低了土壤坡面流失情况;对于产沙量来说,梯田建设有效拦截了产沙过程,随着坡度从5°到25°,拦截率从20 ...
刘世梁 +5 more
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