Results 161 to 170 of about 1,328,681 (221)
, 2008 根据新疆植棉历史与棉花害虫发生规律的研究，揭示了新疆棉蚜成为主要害虫的原因是冬小麦种植面积大量减少，从而导致棉田棉蚜的天敌来源减少，充足的食物和不足的自然天敌造成了新疆棉蚜成灾;经过多年探索和深入研究，发现苜蓿、苦豆子等具有最大的食物昆虫涵养量，并且可以作为自然天敌繁殖库，发现这些植物生长期早而造成了其涵养天敌被利用中最关键的时间优势，创造了诱导棉田边缘植物带自然天敌进入棉田控制棉蚜的简便途径 ...
中国科学院新疆生态与地理研究所
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Wildlife Letters, Volume 4, Issue 3, Page 149-159, September 2026.Migratory shorebirds traveling the East Asian–Australasian Flyway face systemic policy fragmentation and habitat disconnection between China (coordination challenges and renewable energy conflicts) and Australia (federal governance fragmentation). This study proposes a transboundary conservation framework to fill this gap.
Yarui Wang
wiley +1 more source
[Aging-Associated Oral Microbiota Dysbiosis and Hypofunction: Their Role in Alzheimer's Disease Pathogenesis]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi Y, Chen Y, Chen S, Huang X.
europepmc +1 more source
Shuitu Baochi Xuebao[目的] 基于“整体保护、系统修复、综合治理”的治理思路识别生态修复优先空间抑制生态退化,是区域社会—经济协调发展、筑牢生态安全屏障和推进生态文明建设的重要举措。[方法] 以青海省为研究区,通过土地利用强度、土地利用重心迁移反映城市化进程,定量评估2005—2020年7项生态系统服务、生态敏感性和生境退化度,提出基于“生态系统服务簇—生态敏感性-生境退化度”识别生态修复优先空间,将内部缺陷和外界胁迫相结合,划定5类生态修复优先区并提出相应修复策略。[结果] 青海省2005—2020年产水深度分别为125.
马泽钰 +5 more
doaj
, 2011 在科技部科技支撑计划(攻关计划)支持下,初步形成了荒漠植被保育与生态安全保障体系建设技术与模式,荒漠高效生态草业、药业、林果业建设关键技术与模式,荒漠植被保育技术、人工生态与自然生态整合技术和干旱荒漠区人工加速植被恢复技术等。 西北干旱荒漠区土地资源开发和“生态置换”战略实施,保护干旱区草地、荒漠生态,发展特色、优势产品;高效基本农田经济型产业建设,调整农村产业结构。研发集成的干旱荒漠区荒漠植被保育与生态安全保障体系的建设技术 ...
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Earth's Future, Volume 14, Issue 9, September 2026.Abstract Understanding how meteorological drought propagates to hydrological drought under natural conditions is essential for improving drought early warning, yet the roles of precipitation frequency and intensity in regulating this process remain poorly understood.
Qi Zhang +8 more
wiley +1 more source
[Exploration and Practice of Constructing a New Ecology of Experimental Stomatology Practice Teaching Driven by Digital Intelligence]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhang Y +7 more
europepmc +1 more source
, 2012 分区边界的确定是生态分区的重要步骤,但目前多数水生态分区的边界确定以定性分析、专家判断为主。本研究以洱海流域为例,建立了一套两级分区体系。该体系基于GIS技术,用子流域作为分区基本单元,并用相关分析法,定量筛选一、二级分区指标。其中,一级分区指标为高程、坡度和植被归一化指数（NDVI）,二级分区指标为农田百分比和城镇百分比。通过指标图层的叠加和重分类,合并同质性子流域,从而将洱海流域划分为5个一级区和9个二级区。藻类群落分布的验证结果表明分区合理。本研究将定量分析和子流域边界应用于水生态分区 ...
唐涛 +6 more
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Functional Ecology, Volume 40, Issue 9, Page 2726-2736, September 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source