Results 11 to 20 of about 427 (193)

Effect of Grapevine Leafroll Disease on Aroma Profile of Cabernet gernischt Wine(卷叶病对蛇龙珠葡萄酒香气特征的影响) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
In order to explore the effect of grapevine leafroll disease (GLD) on the aroma quality of wine, the Cabernet gernischt which was dominantly infected with GLD from the eastern foothill of Helan mountain in Ningxia was studied.
SUN Lijun(孙丽君)   +6 more
doaj   +1 more source

贺兰山东麓春季鸟类多样性及年际变化

open access: yes野生动物学报, 2022
在2014—2020年的鸟类繁殖期(5月和6月),采用样线法对贺兰山东麓不同生境的鸟类种类、数量和分布进行了多次调查。共记录到鸟类99种,隶属于16目40科,包括夏候鸟44种、留鸟38种、冬候鸟1种及旅鸟16种,记录到国家一级保护鸟类1种(猛禽)、国家二级保护鸟类12种(包括10种猛禽,2种鸣禽)。鸟类区系成分以北方型鸟类为主,兼有南北混杂的现象。Shannon-Wiener指数显示,多年来均以山地疏林生境的鸟类物种多样性最高,这可能与山地疏林生境复杂性较高有关;生物多样性存在年际变化 ...
王继飞 1 操姝蕙 2 骆爽 2 赵伟 2
doaj  

内蒙古贺兰山马鹿的种群数量及种群结构

open access: yes野生动物学报, 2021
为了掌握内蒙古贺兰山国家级自然保护区内马鹿(Cervus elaphus)的种群数量和种群结构,维护内蒙古贺兰山的生态平衡。于2017年11—12月,2018年4—6月、11—12月,2019年4—6月,在内蒙古贺兰山国家级自然保护区内,利用样线法对保护区内的马鹿进行调查,采用Distance R进行数据分析,估测种群数量和种群密度,并对种群结构进行探讨。研究发现,马鹿在2018年冬季种群数量最高约为2452(1678—3578)只,种群密度为3705(2539—5048)只/km2,遇见率为1 ...
孙萍黄师梅苏云孟德怀张致荣滕丽微刘振生
doaj  

Research Progress and Prospect Slope Greening in China [PDF]

open access: yes, 2023
[Objective] The current status and hot trends of slope greening research were studied in order to provide theoretical support and references for subsequent research. [Methods] Professional bibliometric tools CiteSpace and VOSviewer were used to visualize
Guo Xiaoping   +5 more
core   +1 more source

Research on the Identification of Matheran Wine Region in the East Foot of Helan Mountain [PDF]

open access: yes
Objective: To explore the feasibility of using stable carbon and oxygen isotopes and mineral elements in small-scale regional wine production identification, the fractionation characteristics of stable isotopes of carbon and oxygen in wine of Matheran ...
Caihong LI   +7 more
core   +1 more source

Isolation and Identification of Pediococcus lactis in Human Intestinal Tract and Its Performance Analysis of Fermented Goji Berry Juice [PDF]

open access: yes, 2023
In order to obtain candidate strains with strong colonization ability and excellent fermentation performance of goji berry juice, 3 strains of lactic acid bacteria were isolated and screened from human intestinal tract.
Haitian FANG   +6 more
core   +1 more source

Analysis and comparison of the phenolic compounds of Chardonnay grape in different terroir [PDF]

open access: yes
[Objective] The objective of this study was to explore the changes of phenolic compounds in grapes and wines of Chardonnay under different terroirs in the eastern foothills of Helan Mountain.
LI Dongmei   +5 more
core   +1 more source

Spatial-temporal Variation of Vegetation Coverage and Its Influencing Factors in Binchang Mining Area from 1986 to 2021 [PDF]

open access: yes, 2023
[Objective] The change characteristics and influencing factors of vegetation coverage and its spatial distribution in the Binchang mining area were analyzed, and the ecological status of the mining area was evaluated in order to provide a scientific ...
Chen Qiuji   +3 more
core   +1 more source

The compilation of 1∶500000 seismotectonic map of the Ordos active block and boundary zone [PDF]

open access: yes
The 1∶500000 seismotectonic map of the Ordos active block and boundary zone is a special achievement of the national key research and development project “Research on dynamic model and strong earthquake risk of Ordos active block boundary zone” .
Ming Hao   +5 more
core   +1 more source

郝景盛在西北考查团的植物采集及后来的研究 [PDF]

open access: yes, 2007
郝景盛在西北考查团中的植物考察和采集,是中国学者在新中国成立之前在青海地区有限的几次之一.当时西方人在青藏高原的考察已经很多.郝景盛后来在德国完成的博士论文《青海植物地理》,以他自己的这次考察为基础,充分利用了西方已有的研究成果,对青海东北部作了植物地理学研究 ...
徐凤先
core  

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