Results 31 to 40 of about 19,908 (197)

基于数值模拟的土壤水力参数对土壤水长程相关性的影响分析

open access: yesShuitu Baochi Xuebao, 2022
为探究不同气候条件下土壤水力参数对土壤水长程相关性的影响, 利用HYDRUS-1D模型, 以湿润、半干旱和干旱气候区的气象数据为驱动, 结合生成的砂土和黏壤土土壤水力参数集, 模拟生成土壤水时间序列集; 而后, 利用去趋势波动分析法对生成的土壤水数据进行长程相关性分析。结果表明: (1)土壤水标度指数(h)介于0.570~1.915, 土壤水中存在显著的长程相关性。砂土中土壤水变化主要表现为持续性, 黏壤土中持续性和反持续性均较为显著。(2)土壤水长程相关性与土层深度、黏粒含量、干旱指数存在正相关关系。(
李玲, 武冬冬, 王铁军, 狄崇利
doaj  

Effect and synergy of different exogenous additives on gel properties of the crayfish surimi products [PDF]

open access: yes
ObjectiveThis study aimed to investigate the effect of exogenous additives on gel properties of crawfish surimi products.MethodsThe experiment was designed with different amounts of hydroxypropyl distarch phosphate (HPDSP), soy protein isolate (SPI), and
BAO Hairong   +4 more
core   +1 more source

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

Effect of Liquid Nitrogen Quick Freezing on the Quality Characteristics of Prepared Chicken Chops during Frozen Storage [PDF]

open access: yes
To investigate the impact of liquid nitrogen quick freezing on the quality of prepared chicken chops during frozen storage, this study compared −18 ℃ air freezing with −80 ℃ and −100 ℃ liquid nitrogen quick freezing.
Han YANG   +7 more
core   +1 more source

1960s以来白洋淀水文、环境、生态演变趋势

open access: yes, 2020
白洋淀是我国华北平原最大的浅水湖泊湿地,享有“华北之肾”、“华北明珠”等美誉,对维持京津冀大城市群的区域生态系统平衡和保持生物多样性发挥着生态安全屏障作用.长期以来,高强度人类活动导致入淀水量锐减、水体污染严重、生物多样性减少、生态系统功能衰退,“明珠”失去了应有的光泽.结合历史文献资料和课题组长期在白洋淀的监测结果,本文系统地梳理了自1960s以来,白洋淀的水文、水环境和水生态演变历程,并分析了导致一系列演变发生的可能原因.随着区域经济的发展,人类活动增强,白洋淀区域水量 ...
易雨君, 林楚翘, 唐彩红
semanticscholar   +1 more source

Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity

open access: yesConservation Biology, EarlyView.
Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca   +23 more
wiley   +1 more source

杂交狼尾草水土保持能力的实验研究

open access: yesShuitu Baochi Xuebao, 2005
杂交狼尾草是一种优良的多年生禾本科牧草,具有很好的水土保持能力,但人们对其水土保持方面的定量研究较少。通过对杂交狼尾草草地植被的持水能力、土壤水分变化、土壤抗冲性、渗透性等指标的研究,探讨杂交狼尾草的水土保持能力。结果表明:杂交狼尾草的持水能力强,能明显增加土壤水分含量,提高土壤的抗冲性、渗透性,在三峡库区的水土保持工作中有着广阔的应用前景。
王凭青 段传人 王伯初 刘万钱 朱蠡庆
doaj  

Effects of Portulaca oleracea Extracts on Gelation and Emulsification Properties of Pork Myofibrillar Proteins [PDF]

open access: yes
This study aimed to investigate the effects of Portulaca oleracea extracts (PE) on the gelation and emulsification properties of pork myofibrillar proteins (MPs). A myofibrillar protein-Fenton oxidation system (0.0049 g/L FeCl3, 0.0176 g/L ascorbic acid,
Chunhong TANG   +5 more
core   +1 more source

Effects of Whey Protein Denaturation and Whey Protein/Casein Ratio on the Stability and Whipping Properties of Recombined Cream [PDF]

open access: yes, 2023
In this study, the effects of the denaturation degree of whey protein (WP) and whey protein/casein (WP/CN, m/m) ratio in milk powder on the emulsion stability and whipping properties of recombined cream were investigated.
LI Yue, XIE Yufei, LI Yang, LI Yan, ZHANG Liebing, YAN Jianguo
core   +1 more source

Spatial identification of areas suitable for other effective area‐based conservation measures in the European Union

open access: yesConservation Biology, EarlyView.
Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas   +14 more
wiley   +1 more source

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