Results 11 to 20 of about 16,345 (164)
Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley +1 more source
The Amur tiger, an endangered flagship species mainly found in the Russia Far East and Northeastern China, holds immense biological importance, and has been listed under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
Wei Xie +15 more
wiley +1 more source
Study on the microbial community structure, diversity and abundance in water-soil interface sediments on the watershed of three rivers [PDF]
为了探讨无机盐分、养分及有机质矿化作用对微生物群落结构、多样性和功能微生物丰度影响,河流水土界面微生物群落结构和碳、氮、硫循环功能微生物种群的演替规律,本论文以九龙江、闽江和瓯江三江流域作为研究区域,并增加温室培养实验,对其中水土界面沉积物样品中的理化参数、微生物群落、多样性和功能微生物丰度进行测定;采用基因文库构建技术、变性梯度凝胶电泳技术(DGGE)和illumina高通量测序技术分析了样品中微生物群落结构及活动规律;利用实时荧光定量PCR(RT-PCR)技术对功能微生物进行定量 ...
李虎
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Eimeria saudiensis represents a genus of apicomplexan parasites capable of inducing coccidiosis in Arabian oryx. Our research concentrated on the morphological and molecular investigation of Eimeria spp. in the captive oryx herd in Oman. The therapeutic and management practices employed at the Mammals Breeding Center were reassessed to diminish ...
Khalid Al‐Habsi +7 more
wiley +1 more source
坡地农林复合系统的土壤养分过程包括养分坡面流失,地下损失,系统养分循环等空间过程及土壤养分的年、季度变化的时间过程,目前,国内外的研究多局限于控制坡面流失,系统养分循环和提高土壤肥力的效果等方面,研究方法以定性研究和统计分析为主,在养分流失机理,地下损失,养分过程的区域对比等领域的研究还很缺乏,研究的深度与广度均需拓展。
许峰 蔡强国
doaj +2 more sources
Field Study on Effects of Simulated Sea Level Rise on Main Processes of Organic Carbon in Kandelia obovata Mangrove Ecosystems [PDF]
本研究以厦门曾营海岸三个不同高程样地的秋茄红树林为研究对象,在模拟海平面上升80cm红树林(SLR80cm)、模拟海平面上升40cm红树林(SLR40cm)以及对照红树林(SLR0cm,大约相当于福建九龙江口红树林的滩面高程),探讨海平面上升对秋茄(Kandeliaobovata,以前学名为Kandeliacandel)红树林生态系统主要有机碳过程的影响。 SLR80cm样地的植株矮小、林相稀疏,生长状况明显不如SLR40cm和SLR0cm样地。各样地植株的生物量以及年增量总体均呈现出SLR0cm ...
高敏
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Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin +2 more
wiley +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
林地被人为开垦破坏后 ,加速侵蚀是导致坡面土壤养分流失的根本原因。坡面土壤养分流失的空间分布与坡面侵蚀方式和侵蚀强度的空间分布相一致 ,浅沟沟槽是坡面土壤养分流失最严重的部位。土壤养分流失在开垦初期非常迅速 ,开垦耕种 5 a后 ,土壤养分含量可减少 5 0 %。土壤剖面中 A层的流失是土壤养分流失的标志。
郑粉莉 张成娥
doaj +2 more sources
A Study on Cultivation of Top-notch Innovative Undergraduates in Chinese Research University [PDF]
随着国家创新型国家建设计划的不断推进,拔尖创新人才培养逐渐成为一个备受教育主管部门关注的话题。为此,教育部在研究型大学本科教育层面推行了一系列政策实施拔尖创新人才培养计划。然而,及至目前国内学术界还没有形成对本科拔尖创新人才培养的系统研究,具体表现为:关于本科拔尖创新人才培养目标尚不清晰、具体的培养方案并不明确、培养效果无法依据一定的标准进行衡量,这就使得实践缺乏明确的理论指导和有计划的推进,因此研究本科拔尖创新人才的有效培养问题成为一个迫切需要解答的现实课题 ...
路丽娜
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