Results 11 to 20 of about 6,811 (176)

东北东部山地主要林分类型土壤特性及其水源涵养功能

open access: yesShuitu Baochi Xuebao, 2006
通过对东北东部山地主要林分类型土壤特性及水源涵养功能进行研究。结果表明:有机质含量和土壤总孔隙度从大到小的顺序均为:落叶松人工林〉天然次生林〉红松人工林〉针阔人天混交林。土壤容重为:针阔人天混交林〉天然次生林〉红松人工林〉落叶松人工林。0~40cm土层饱和蓄水量落叶松人工林最大,为2326.24t/hm^2;天然次生林较好,为2258.6t/hm^2;红松人工林次之,为2252.29t/hm^2;针阔人天混交林最差。为1851.11t/hm^2.落叶松人工林枯落物持水量最好,为136.63t/hm^2 ...
刘畅   +4 more
doaj   +2 more sources

Elevation, soil pH and calcium availability shape regional and local scale spatial patterns of PhoD gene abundance in tropical and subtropical forests

open access: yesFunctional Ecology, Volume 40, Issue 4, Page 983-1000, April 2026.
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

中亚热带杉木人工林和米槠次生林树干茎流和穿透雨磷的动态特征

open access: yesShuitu Baochi Xuebao, 2021
磷(P)伴随树干茎流和穿透雨输入到森林,成为补充亚热带森林生态系统P流失的一个重要途径,但其在不同类型生态系统中的动态特征缺乏必要的关注。以中亚热带杉木人工林和米槠次生林为研究对象,通过测定2015年6月至2018年8月间树干茎流和穿透雨中P浓度,探讨了2个林分树干茎流和穿透雨P浓度的差异、季节变化特征及影响因素。结果表明,杉木人工林树干茎流和穿透雨P浓度变化范围分别为0.002~0.026,0.003~0.024 mg/L,米槠次生林树干茎流和穿透雨P浓度变化范围分别为0.003~0.024,0 ...
赵泽敏   +9 more
doaj  

Functional Stability Despite Taxonomic Changes in Mixed‐Species Foraging Flock Participants Along an Elevational Gradient in Knuckles Montane Reserve, Sri Lanka 斯里兰卡纳克斯山地保护区 (Knuckles Montane Reserve) 海拔梯度上混合物种觅食群参与者的功能稳定性与分类变化

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 59-73, March 2026.
This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara   +3 more
wiley   +1 more source

The Cultural Change of Elunchun Nationality and the Thought Provoked by the Transformation of Economy [PDF]

open access: yes, 2010
The Elunchun nationality is one of the Chinese minorities. Statistics shows that there are only 8196 Elunchun people in 2000. This paper provides a systematic analysis on the present existence and development conditions of the Elunchun nationality and ...
LIU, Xiao-chun
core   +2 more sources

Sun Bear Ecology and Conservation: Multiscale Habitat Associations in Southeast Asia 马来熊的生态与保护:东南亚地区的多尺度生境关联研究

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 125-136, March 2026.
We collated detections of the sun bear from new and previously published camera trap studies across its range. We then analysed these detections at two different spatial scales to assess the habitat associations and diel activity of this species. We found that the sun bear is tolerant to moderate habitat disturbances. ABSTRACT Degraded tropical forests,
Alexander Hendry   +5 more
wiley   +1 more source

Extracellular Enzyme Stoichiometric Characteristics of Subtropical Forest Soil under Forest Fire Disturbance [PDF]

open access: yes
[Objective] Forest fire, as the primary natural and human-induced disturbance in subtropical forests, seriously affects the soil biochemical cycle.
GUO Qiling   +5 more
core   +1 more source

The Rhetoric of Disenchantment: Ghost Belief and Secular Critique in Early Twentieth‐Century China

open access: yesCognitive Science, Volume 50, Issue 1, January 2026.
Abstract This study presents the first large‐scale empirical analysis of how ghosts and spirits were debated during China's early twentieth‐century secular transformation. Using a novel dataset of over 2000 digitized texts—including newspapers, periodicals, and essays from 1890 to 1949—we combine close reading, AI‐assisted annotation, and statistical ...
Ze Hong, Yuqi Chen
wiley   +1 more source

Transpiration Characteristics of Common Trees and Their Responses to Meteorological Factors in Secondary Forests on Karst Slopes [PDF]

open access: yes
[Objective] To explore the transpiration characteristics of common trees and their responses to meteorological factors in secondary forests on karst slopes.
DAI Quanhou   +3 more
core   +1 more source

梭罗的极简主义生活智慧及其启示——基于生态幸福观的视角 [PDF]

open access: yes, 2017
极简主义原是西方一种现代艺术流派,其核心理念是崇尚简约。而作为一种生活方式的极简主义,梭罗早在19世纪就践行过:他通过对“步行”“奢侈”与“文明”的深刻反思,认为应简化人的物质需求,倡导追求精神上的自由,从而促进人与自然和谐共生。当前正处于生态危机的时代,亟需提倡这样一种极简主义的生活方式。梭罗的极简主义生活智慧对于我国的生态文明建设具有重要的启示作用,有助于实现全社会的生态幸福。2016年度教育部人文社会科学研究一般项目“马克思主义道德观与道德相对主义批判”(16YJA710028 ...
徐朝旭, 裴士军
core   +1 more source

Home - About - Disclaimer - Privacy