Results 51 to 60 of about 16,677 (165)
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 对3种引进草种的生物量、枯落物量、土壤的容重、孔隙度、自然含水量、毛管持水量、饱和含水量、机械组成、有机质含量、渗透性能和抗蚀能力等进行了测定和分析。结果表明,3种引进草种的水土保持效果依次为纳罗克非洲狗尾草>威提特东非狼尾草>沙弗雷肯尼亚白三叶草,纳罗克非洲狗尾草的持水能力和土壤改良性能最好,是水土保持效果最佳的牧草,可以推广种植,其次是威提特东非狼尾草。
盂广涛 +7 more
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Shuitu Baochi Xuebao, 1995 黄土高原由北向南顺序分布有沙壤带、轻壤带、中壤带和重壤带；２ｍ土层最大持水容量约相当于各自所处地区的年降水量；２ｍ土层有效持水容量约相当于各自作物耗水量的７０％以上。
李开元 李玉山
doaj +2 more sources
Shuitu Baochi Xuebao, 2021 为研究北方山区典型人工林水源涵养效应和更新状况，选取吕梁山脉落叶松纯林为研究对象，采用室内浸水法测定不同林分密度下枯落物的持水性能，用RDA冗余度分析法探究林分结构对枯落物厚度和拦蓄功能的相关关系。结果表明：（1）不同密度华北落叶松样地的枯落物厚度为0.84~4.50 cm，蓄积量范围为9.64~24.14 t/hm2，350株/hm2样地蓄积量最大，200株/hm2样地最小。（2）样地最大持水量范围为27.12~62.07 t/hm2，500株/hm2样地持水量最大，150株/hm2样地最小 ...
梁文俊 +5 more
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A link between increased temperature and avian body condition in a logged tropical forest
Conservation Biology, EarlyView.Abstract The combined effects of anthropogenic disturbances, such as logging and climate change, remain poorly understood; yet, they are the main threats to tropical biodiversity. Most tropical African countries lack long‐term climate data, so climate impacts on biodiversity cannot be assessed.
Moreen Uwimbabazi +7 more
wiley +1 more source
Effect of cooked mashed potato content on the quality of dry potato wheat noodle [PDF]
, 2020 To simplify the production process，cooked mashed potato instead of water were used to make potato wheat noodles.Cooked mashed potato content with 81.11% moisture were added to 65 g to 85 g to 200 g of wheat flour.Influence of potato content on the ...
LIU Yan-xiang +6 more
core +1 more source
Shuitu Baochi Xuebao, 2016 为探究密度调控措施对华北落叶松（Larix principis-rupprechtii Mayr）人工林枯落物水文效应的影响，以山西太岳山好地方林场35 a生华北落叶松（principis-rupprechtii L.）人工林为研究对象，采用样地调查和室内浸泡法分析了不同密度调控处理下未分解层和半分解层枯落物储量、枯落物持水特征、枯落物持水量和持水速率及其与浸水时间的关系。结果表明：（1）4种密度调控处理枯落物储量由大到小依次为：轻度密度调控处理（LT）＞中度密度调控处理（MT）＞重度密度调控处理（HT）
白英辰 +6 more
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Shuitu Baochi Xuebao, 2022 为探究森林公园植被的水源涵养能力,为森林公园植被配置和经营管理提供依据,研究选取天龙山森林公园6种林分(油松、山杨、刺槐、油松—侧柏混交林、侧柏—油松—杏树混交和灌木林)为研究对象,通过测定林下枯落物厚度、蓄积量、持水性能和干扰度等指标,研究不同林分类型枯落物水文效应。结果表明:(1)所有林分枯落物干扰度范围为无到中度,厚度范围为0.57~2.63 cm,山杨最厚,侧柏—油松—杏混交林最薄;蓄积量范围为7.20~16.30 t/hm2,油松—侧柏混交林最大,侧柏—油松—杏混交林最小。(2 ...
郑淼, 郭毅, 辛如洁, 李庆华
doaj
Distribution, scale, and drivers of mass mortality events in Europe's freshwater bivalves
Conservation Biology, EarlyView.Abstract Mass mortality events (MMEs) are decimating populations and compromising key ecosystem functions around the globe. One taxon particularly vulnerable to MMEs is freshwater bivalve mollusks. This group has important ecosystem engineering capacities and includes highly threatened and highly invasive taxa.
Daniel A. Cossey +39 more
wiley +1 more source
The Long-term Variations and Influencing Factors of Soil Saturated Hydraulic Conductivity in Terraces on the Loess Plateau [PDF]
[Objective] The long-term variations of soil saturated hydraulic conductivity (Ks) and its primary controlling factors in terraces on the Loess Plateau were explored. [Methods] Terraces were selected for three land use types, i.e.
CHANG Heng +6 more
core +1 more source