Results 31 to 40 of about 2,888 (178)
Shuitu Baochi Xuebao, 2023 森林碳库在全球碳循环中发挥着重要的作用。为深入了解山西省中条山区森林植被碳密度的时空动态变化及其影响因素,以2005—2015年3期国家森林资源连续清查数据为基础,通过随机森林和结构方程模型,定量研究了森林植被的碳密度以及各驱动因子对碳密度空间分布的贡献度。结果表明:(1)2005年、2010年、2015年中条山森林植被碳密度和碳储量分别为24.87,26.56,31.42 Mg C/hm2和15.89,16.00,20.15 Tg C,二者均呈持续增加趋势,年均增长率分别为2.63%和2.68%。(2)
段兰兰 +4 more
doaj
Spatial and Temporal Distribution Characteristics of Carbon Storage in Handan City Based on PLUS and InVEST Models [PDF]
, 2023 [Objective] The land use patterns and carbon storage distribution in Handan City, Hebei Province during the recent 20 years were analyzed, and the trends in land use changes under an ecological protection policy duirng the next 10 years were determined ...
Han Hongwei +6 more
core +1 more source
Functional Ecology, EarlyView.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
Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
Ecological Characteristics of Phoebe bournei (Hemsl.) Yang Community in Fujian [PDF]
, 2011 本次研究以福建省内沙县罗卜岩自然保护区（以下简称罗卜岩）、明溪君子峰自然保护区沙洲坑（以下简称沙洲坑）、政和凤头村（以下简称凤头村）、泰宁世界自然遗产地沁洋川（以下简称沁洋川）等4个闽楠原生群落为研究对象，在每个群落各设置4块10m×10m的样方进行每木调查，并在各样地取3块20m×20m样方进行种群调查，运用植物群落学和生态学的原理和方法对植物区系成分、物种多样性、空间分布格局、以及生态位的各生态指标进行测定，揭示了福建省4处成片闽楠原生群落的主要生态特征的共同点和差异，分析了造成这些差异的因素所在 ...
肖霜霜
core
Evaluation of Eco-environmental Vulnerability of Pearl River Delta Based on PSR Model [PDF]
, 2022 [Objective] The spatio-temporal evolution characteristics and its reasons of eco-environmental vulnerability in the Pearl River delta were studied in order to provide theoretical basis for regional development.
Ma Wei, Wang Yonghong, Zheng Huiling
core +1 more source
Conservation Biology, EarlyView.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
A Study on the Spatical Distribution of Producer Services in Taiwan [PDF]
, 2010 自20世纪80年代以来，台湾地区产业结构快速调整，制造业逐渐式微，服务业加速成长，以服务业为重心的产业结构逐步实现。在服务业中，又以生产者服务业的成长最为迅猛，在促进台湾经济从工业化向后工业化顺利过渡过程中扮演着极其重要的角色。当前，生产者服务业区位理论的研究是国内外经济地理学和区域经济学研究的前沿课题。这种情况下，就台湾生产者服务业空间布局进行研究，不仅有助于总结台湾地区生产者服务业空间分布的特征规律，而且有利于推动生产者服务业区位理论研究的进一步深化。本文在前人研究的基础上 ...
蒋亚杰
core
Spatial-temporal Evolution of Carbon Storage and Spatial Autocorrelation Analysis in Zhengzhou City Based on InVEST-PLUS Model [PDF]
, 2023 [Objective] One of the main drivers of terrestrial ecosystem carbon storage is land use change. The spatial-temporal response relationship between land use and carbon storage evolution in Zhengzhou City, Henan Province was analyzed based on the logic of “
Sun Yifan, Wang Xia, Xu Mengfei
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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 more
wiley +1 more source