Results 1 to 10 of about 3,046 (148)
2008年4~6月,采用样线法对卢家林场不同生境的鸟类群落结构进行了调查,共记录到63种鸟类,分属11目29科。雀形目鸟类的种数最多,占总数的57.14%。国家Ⅱ级保护鸟类5种,占总数的7.94%。鸟类Shannon-Weiner多样性指数,天然次生林最高,农田最低。天然次生林和人工林之间的相似性指数最高,水域和人工林之间相似性生指数最低。
于洋, 王永吉, 王文
doaj +2 more sources
2022年3—6月,于黑龙江帽儿山森林生态系统国家野外科学观测研究站开展小斑啄木鸟(Dryobates minor)取食偏好的调查。采用样方结合样线与无线电追踪技术追踪小斑啄木鸟,采用基于“利用-可利用型”方法的Bailey’s方法分析小斑啄木鸟取食树木与取食生境的偏好,采用主成分分析归纳影响选择取食地的主要因子,利用Fisher’s精确检验、非参数检验和相关性检验探究性别在取食行为中及主要因子间的差异。结果显示:小斑啄木鸟偏好在活立木上,用轻啄的方式,在冠层处、侧枝上短时取食;株密度、取食树高度、坡度、
荆媛 +5 more
doaj +2 more sources
Effects of Different Plant Spacings on Preferential Flow Development Characteristics of Vetiver Plant Slopes [PDF]
[Objective] The development characteristics of preferential flow for a vetiver slope and the relationship between vetiver roots and preferential flow were analyzed in order to provide a theoretical basis for further study on the influence of plant roots ...
Jiang Xueliang +4 more
core +1 more source
Construction of Ecological Security Pattern in Ecological Barrier Zone of Loess Plateau Based on “Importance-Sensitivity-Landscape Features” [PDF]
[Objective] The relationship between ecological spatial network structure and soil conservation was analyzed in order to provide countermeasures and suggestions for improving ecosystem services in the Loess Plateau barrier region.
Liu Hongjun +5 more
core +1 more source
Between conflict and coexistence: Wildlife in rubber‐dominated landscapes 冲突与共存之间:橡胶林主导景观中的野生动物
Natural habitat loss forces some wildlife species to increasingly extend their habitats into farmlands. Rubber‐dominated landscapes surrounding protected areas have the potential to facilitate coexistence between people and some wildlife species if young plants are better protected and plantation management is made more wildlife‐friendly.
Franziska K. Harich‐Wloka +5 more
wiley +1 more source
Highlights This long‐term longitudinal study demonstrates the association between alcohol consumption and health outcomes in patients with abnormal glucose metabolism including type 2 diabetes mellitus and prediabetes. Occasional drinking (less than once a week) reduces the risk of all‐cause mortality, while heavy alcohol consumption (≥30 g/day for men
Mengzhao Cui +7 more
wiley +1 more source
Key n‐Gram Extractions and Analyses of Different Registers Based on Attention Network
Key n -gram extraction can be seen as extracting n‐grams which can distinguish different registers. Keyword (as n = 1, 1‐gram is the keyword) extraction models are generally carried out from two aspects, the feature extraction and the model design.
Haiyan Wu +5 more
wiley +1 more source
Effects of Land Use Transition on Ecosystem Service Values in Wuling Mountain Region in Chongqing City [PDF]
[Objective] The effects of land use transition on ecosystem service values (ESV) in the Wulong District were analyzed in order to provide a basis for decision-making regarding rational land use, optimal allocation of resources, development and protection,
Deng Wei +4 more
core +1 more source
Growth and Management Effect of Larix Principis-rupprechtii Plantation [PDF]
[Objective] The effect of growth and management of a Larix principis-rupprechtii plantation was analyzed in order to provide a reference for the scientific and rational management of L.
Jia Baoguang +6 more
core +1 more source
Water Use Strategy of Reaumuria Songarica Population in Steppe Desert Region Based on Spatial Distribution [PDF]
[Objective] The relationship between water adaptation and the distribution pattern of desert shrubs at the regional scale was studied and the process and mechanism of plant population response to environment in arid and semi-arid areas was analyzed in ...
Dong Lei +6 more
core +1 more source

