Results 1 to 10 of about 86,474 (308)

Has the Yangtze river economic belt strategy promoted the construction of ecological civilization in the upper reaches of the Yangtze river?

open access: yesFrontiers in Environmental Science, 2022
As a regional development strategy based on the world’s third largest river basin unit, the Yangtze river economic belt strategy plays a vital role in building ecological civilization with the core concept of “ecological priority and green development ...
Zhiyong Zhang   +10 more
doaj   +3 more sources

Discussion on the characteristics and risk management strategies of abnormal rainfall-flood regime in the Hanjiang River Basin during the autumn flood season of 2021

open access: yes暴雨灾害, 2022
The Hanjiang River during the autumn flood season of 2021 encountered the serious flood event with a return period of more than 20 years,where both the accumulated precipitation in the upper reaches of Hanjiang River and the accumulated inflow in ...
Yiming KE   +6 more
doaj   +1 more source

The Requirement and Protective Effects of Dietary Protein against Chronic Ammonia Exposure in Juvenile Genetically Improved Farmed Tilapia (Oreochromis niloticus)

open access: yesAquaculture Nutrition, 2023
Ammonia is a key risk factor in intensive aquaculture systems. This experiment is aimed at investigating the influence of dietary protein levels on genetically improved farmed tilapia (GIFT, Oreochromis niloticus) under chronic ammonia stress.
Xing Lu   +8 more
doaj   +1 more source

Dietary Cholesterol Requirements of Large Red Swamp Crayfish (Procambarus clarkii)

open access: yesAquaculture Nutrition, 2023
To investigate the dietary cholesterol requirements of large red swamp crayfish (Procambarus clarkii), crayfish (initial body weight: 13.49 ± 0.22 g) were hand-fed six diets containing 2.47 (C0), 4.27 (C1), 6.80 (C2), 8.77 (C3), 11.74 (C4), and 14.24 (C5)
Juan Tian   +9 more
doaj   +1 more source

Research of Soil and Water Conservation Effects of Production and Construction Projects Based on AHP-fuzzy Comprehensive Evaluation Method

open access: yesShuitu baochi tongbao, 2023
[Objective] The soil and water conservation effects of production and construction projects implemented during the construction period were determined in order to provide data support for the follow-up supervision and management of soil and water ...
Tai Hui   +5 more
doaj   +1 more source

Integrated chromatin accessibility and DNA methylation analysis to reveal the critical epigenetic modification and regulatory mechanism in gonadal differentiation of the sequentially hermaphroditic fish, Monopterus albus

open access: yesBiology of Sex Differences, 2022
Highlights DNA methylation modification plays a more crucial role than chromatin accessibility in gonad development. DNA methylation in the transcription start site plays a key role in gonad development.
Qiaomu Hu   +4 more
doaj   +1 more source

Pathological changes of highly pathogenic Bacillus cereus on Pelodiscus sinensis

open access: yesVeterinary Quarterly, 2023
An outbreak of a disease with a high mortality rate occurred in a Chinese Softshell Turtle (Pelodiscus sinensis) farm in Hubei Province. This study isolated a highly pathogenic Bacillus cereus strain (Y271) from diseased P. sinensis. Y271 has β hemolysis,
Zidong Xiao   +9 more
doaj   +1 more source

Evolution of the Yangtze River and its biodiversity

open access: yesThe Innovation, 2023
Documenting the origins of megadiverse (sub)tropical aquatic ecosystems is an important goal for studies of evolution and ecology. Nonetheless, the geological and ecological establishment of the modern Yangtze River remains poorly understood. Here, we reconstruct the geographic and ecological history of an endemic clade of East Asian fishes based on ...
Feng Chen   +9 more
openaire   +3 more sources

Automatic work‐order assignment method for Chinese government hotline

open access: yesEngineering Reports, 2023
Government hotline plays a significant role in meeting the demands of the people and resolving social conflicts in China. In this paper, we propose an automatic work‐order assignment method based on event extraction and external knowledge to address the ...
Gang Chen   +4 more
doaj   +1 more source

Ammonia Volatilization from Irrigated Paddy Fields in Southern China Plains and Its Determinants

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Ammonia volatilization is a pathway of nitrogen cycling in soil. It is mediated by various biotic and abiotic processes. The objective of this paper is to study its variation and determinants in irrigated midseason rice fields in southern ...
YANG Zirong   +6 more
doaj   +1 more source

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