Results 31 to 40 of about 14,135 (161)
Growing Demand and Uneven Supply: Eight Years of Nature Education in China 需求增长与供给不均:中国自然教育八年发展回顾
Integrative Conservation, Volume 5, Issue 1, Page 46-58, March 2026.ABSTRACT This study examines the role of nature education in advancing conservation and sustainability in China between 2014 and 2023. Drawing on national survey reports and historical–comparative methods, it analyses the dynamics of public demand, institutional supply, and practitioner capacity.
Qi Yunxi, Lyu Xiang, Huang Yu
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2019 采用解剖镜、扫描电镜技术，对长白山早春类短命植物牡丹草地下芽形态分化进行了观察，并采用游标卡尺测定各阶段芽体大小，研究地下芽的生长发育节律。发现牡丹草地上生活周期结束后，地下贮藏器官需要休眠2 个月左右，于7 月中下旬，地下芽开始出现形态分化和发育。其进程可分为萌芽期、花序原基分化期、花序形成期和花器官分化期4 个时期，历经2 个月左右，最终以发育成熟的花序进行越冬休眠。连续测定和相关分析表明，在整个夏眠期，牡丹草地下芽的茎高、芽长、芽径均随时间指数生长，茎高和芽长 ...
LIUXuelian(刘雪莲) +4 more
doaj +1 more source
Research on the function of ANAC084 in Arabidopsis thaliana in response to the environmental stress [PDF]
, 2016 ANAC084是NAC转录因子家族的一员，其编码一个206个氨基酸的小蛋白。在拟南芥中过表达ANAC084植株出现地上部分变小，莲座叶面积变小、颜色加深，生长周期偏长的表型，但是根的发育并不受影响，进一步的研究表明过表达ANAC084会使拟南芥叶片细胞变小同时使叶片细胞数量大大减少，从而造成植株变小。但是ANAC084-RNAi和ANAC084-SRDX植株在表型上和野生型没有明显区别。通过对ANAC084Pro:gANAC084:GFP:GUS植株进行GFP扫描和GUS染色研究ANAC084的表达模式，
钟小年
core
Wildlife Letters, Volume 4, Issue 1, Page 42-55, March 2026.This review summarizes the status of musk deer in China, highlighting severe population declines due to illegal hunting and habitat loss, and proposes integrated conservation strategies including habitat protection, captive breeding, and law enforcement to support the recovery and sustainable management of this ecologically and economically important ...
Feng Jiang +8 more
wiley +1 more source
野生动物学报, 1982 掌握麝的生长发育规律,是指导养麝生产,进行定向培育的重要依据。麝在不同时期生长发育速度不同,对各种营养及生活条件的要求也不同。为了培育出体大健壮、早熟高产、耐粗饲料、适应性强等特点的优良个体,我们于1971—1977年在陕西省镇坪县养麝实验场,进行了麝生长发育的研究。现将结果整理成文报告如下。
张保良
doaj
The research on structure and bioactivities of condensed tannins from Ficus altissima leaves [PDF]
, 2016 高山榕（FicusaltissimaBlume）是一种广泛栽培的绿化植物，目前主要用作行道树，园景树和庭荫树，对于其其它方面的开发和利用较少，未使其价值得到充分的体现。本研究通过总酚和可溶性单宁的测定发现两者在高山榕叶片中都具有较为丰富的含量，分别达118.4±3.3mgGAE/gDW和39.61±1.02mg/gDW。单宁结构复杂多样，具有特殊丰富的生物活性，目前已广泛应用于医药、食品、农业、生态等多个方面，逐渐成为植物化学、药理学和食品化学等交叉学科的研究热点 ...
梁戈
core
Functional Ecology, Volume 40, Issue 3, Page 636-654, March 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The nested subset pattern (nestedness) has been widely used to explain species distributions in island and fragmented systems. Mountain sky islands serve as critical natural laboratories for understanding the evolutionary consequences of geographic isolation and climate
Caiwen Zhang +5 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2019 【目的】研究生后营养过剩对SD雌性大鼠生后生长的影响，从而指导临床对儿童的营养干预。【方法】通过孕期限食法建立宫内发育迟缓（IUGR）大鼠模型，选择符合标准的雌性新生仔鼠作为实验组（即I组），I组随机分成对照组（即IC组）和小窝组（IS组）；选择宫内未干预的雌性新生仔鼠作为对照组（即宫内发育正常组，C组），随机分成正常喂养组（CC组）和小窝组（CS组）。21d断乳后，IC组及CC组分别随机分成4只一笼，后正常饲料喂养，IS组及CS组高脂饮食喂养。每周测量各大鼠体质量及鼻肛长，并在不同生长发育周期 ...
陈丹纯 +5 more
doaj
Toxic effect of carbon dioxide and water soluble fractions of crude oil on marine madaka’s reproductive system [PDF]
, 2016 海洋酸化和原油污染对海洋鱼类的影响时有报道，但海洋酸化和原油污染及两者联合暴露对海洋鱼类生殖系统的影响却鲜见报道。本实验以黑点青鳉为实验动物模型，分别采用原油组（500μg/LWSF）、酸化组（1500ppmCO2）和混合暴露组（1500ppmCO2+500μg/LWSF）对黑点青鳉从受精卵开始暴露，探究海洋酸化和原油污染对海洋鱼类的生殖系统的毒性作用及可能机制，结果如下： 原油水溶性成分和二氧化碳暴露的雄鱼表现出精细胞的成熟延迟，并且精原细胞的分裂和分化都受到影响；雌鱼则表现出卵细胞的成熟加速 ...
卢梦超
core
International Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley +1 more source