Results 21 to 30 of about 1,712 (158)

Exploring optimal joint operating rules for large-scale inter-basin water transfer projects with multiple water sources, diversion routes, and water demand areas

open access: yesJournal of Hydrology: Regional Studies, 2023
Study region: The Jiangsu Province section of the South-to-North Water Diversion Project (JS-SNWDP) is an essential section of the SNWDP, which includes multiple water sources, diversion routes, and water demand areas.
Huayu Zhong   +4 more
doaj   +1 more source

The Neolithic Culture and Paleogeographic Environment Evolution in the Eastern Jianghuai Area

open access: yesLand, 2023
According to previous studies, the Lixiahe area in the east of the Jianghuai River was an alternate environment of land and sea in the middle Holocene, and it was not until the late Holocene that the eastern Jianghuai completely became a terrestrial ...
Jiayi Xiao   +4 more
doaj   +1 more source

我国油菜生产布局时空演变及影响因素分析Analysis on the temporal and spatial evolution and influencing factors of oilseed rape production layout in China

open access: yesZhongguo youzhi, 2023
为进一步优化我国油菜生产布局,基于生产集中度指数、生产规模指数、空间重心分析、产地集中度系数等数据模型对21世纪以来我国油菜生产布局时空演变及影响因素进行分析。结果表明:进入21世纪以来,我国油菜主产省基本无变化,但受各省不同产业定位的影响,四川、湖南、重庆、云南油菜生产集中度指数逐年上升,安徽、江苏、浙江逐年下降;油菜产业扶持政策的陆续实施推动南方地区油菜生产规模自2007年逐渐上升,北方对应下降,东、中、西三部及七大产区不同的区位特性导致国内油菜生产在空间布局上总体呈现“东减、中稳、西移”的特征 ...
白桂萍,谢雄泽,谢捷,尹羽丰,褚乾梅,张清伟 BAI Guiping, XIE Xiongze, XIE Jie, YIN Yufeng, CHU Qianmei, ZHANG Qingwei
doaj   +1 more source

New estimates of direct N2O emissions from Chinese croplands from 1980 to 2007 using localized emission factors [PDF]

open access: yesBiogeosciences, 2011
Nitrous oxide (N2O) is a long-lived greenhouse gas with a large radiation intensity and it is emitted mainly from agricultural land. Accurate estimates of total direct N2O emissions from croplands on a country scale are important for global budgets of ...
F. S. Zhang   +4 more
doaj   +1 more source

Oncomelania hupensis retains its ability to transmit Schistosoma japonicum 13 years after migration from permissive to non-permissive areas

open access: yesParasites & Vectors, 2020
Background The East Route Project (ERP) of the South-to-North Water Diversion Project (SNWDP) stretches across schistosomiasis endemic and non-endemic areas in China, which may lead to the dispersal of Oncomelania hupensis, the intermediate host of ...
Cheng-song Sun   +4 more
doaj   +1 more source

Ecological model to predict potential habitats of Oncomelania hupensis, the intermediate host of Schistosoma japonicum in the mountainous regions, China [PDF]

open access: yes, 2015
Schistosomiasis japonica is a parasitic disease that remains endemic in seven provinces in the People's Republic of China (P.R. China). One of the most important measures in the process of schistosomiasis elimination in P.R.
Zhou, Xiao-Nong   +7 more
core   +1 more source

Multi-Objective Optimal Scheduling of Generalized Water Resources Based on an Inter-Basin Water Transfer Project

open access: yes, 2023
For inter-basin water transfer (IBWT) projects, the conflict between social, economic, and ecological objectives makes water allocation processes more complex. Specific to the problem of water resource conflict in IBWT projects, we established an optimal
Qing Mao   +5 more
core   +1 more source

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

open access: yesIntegrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang   +5 more
wiley   +1 more source

Study on the Countermeasures of Ensuring Drinking Water Security in Shanshan County of Xinjiang Autonomous Region, China

open access: yesProceedings, 2017
China has paid more attention to improving urban and rural drinking water security in recent years. Ensuring the security of drinking water in urban and rural areas is a fundamental condition for protecting the basic interests of the public, and it is ...
Weiwei Shao   +9 more
doaj   +1 more source

Gonadal Development–Related Genes and a Male‐Specific Genetic Marker Identified in the Endangered Sichuan Taimen (Hucho bleekeri)

open access: yesIntegrative Zoology, EarlyView.
Integrated transcriptomic and proteomic analyses were used to validate gonadal development–related genes and to identify a sex‐specific molecular marker in Hucho bleekeri. ABSTRACT Sex determination and differentiation represent fundamental topics in reproductive biology. Sichuan taimen (Hucho bleekeri), a first‐class national protected fish species in
Qinyao Wei   +5 more
wiley   +1 more source

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