Results 31 to 40 of about 523 (109)
云南沾益中度退化天坑草地植物群落水平空间分布特征 [PDF]
, 2018 规模最为宏大的地表负地形——喀斯特天坑不仅是世界罕见的地质奇观,圈闭化地形而形成的独特生境更是探索植物物种多样性及其空间分布特征最为理想的地域。以云南沾益天坑群中的中度退化天坑——\"巴家陷塘\"坑底草地植物群落为研究对象,通过α多样性指数与β相似性系数的应用,对\"巴家陷塘\"中度退化天坑坑底草地植物群落物种多样性的水平空间分布特征展开探讨,并对其近邻退化漏斗和\"大毛寺\"原生天坑坑外草地植物群落的相似性进行对比分析,研究结果发现:(1 ...
江聪 +6 more
core
Transpiration Characteristics of Common Trees and Their Responses to Meteorological Factors in Secondary Forests on Karst Slopes [PDF]
[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
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Feedback on Escape Behavior of Birds Under Different Hunger Pressure
Ecology and Evolution, Volume 15, Issue 1, January 2025.The balance between risk and benefit for birds in the face of external stress is highly significant. Our research has revealed that birds with heightened hunger pressure were more inclined to undertake greater risks when confronted with external stress, consequently increasing their foraging opportunities. ABSTRACT The risk of predation has always been
Xiao‐Yang Bao +3 more
wiley +1 more source
Integrative Conservation, Volume 3, Issue 3, Page 230-243, September 2024.Tropical secondary forest at early sucessional stage had higher diamter growth rate and mortality rate, however, these forests also are more risked to droughts and high temperatures. Rising temperatures and more frequent droughts may decrease the carbon sink capacity of tropical forest ecosystems. Abstract Tropical forests are major carbon sinks on the
Sai Tun Tun Oo +11 more
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Ecology and Evolution, Volume 14, Issue 5, May 2024.This study explores the beta diversity of bird assemblages in fragmented urban woodlots in southwest China, emphasizing the importance of considering functional and phylogenetic diversities in addition to taxonomic composition. It underscores the need to account for habitat structure, in addition to landscape characteristics, in beta diversity analyses.
Yu Liu +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2020 为探讨喀斯特石漠化过程中地表小生境及成土母质岩性的演变对土壤有机碳的影响，以不同喀斯特地貌类型的角度出发，分别从贵州普定、兴义、关岭、荔波及印江县选取对应的喀斯特高原（KG）、峰丛洼地（KF）、峡谷（KX）、原始森林（KY）及槽谷（KC）作为研究区域，分析了0—40 cm土壤层（0—10，10—20，20—30，30—40 cm）及土壤与基岩交界面土层的有机碳含量，分别计算土壤有机碳密度及储量，并分析其空间分布特征及演变规律。结果表明：不同石漠化等级下土壤有机碳含量、密度及储量分别为113.18~163.
王兴富 +3 more
doaj
Characteristics and Drivers of Spatial and Temporal Soil Erosion in Anshun City, Karst Region [PDF]
[Objective] To explore the spatial and temporal evolution of soil erosion in Anshun City, southwest karst region, as well as the main controlling factors of soil erosion, and to master the soil erosion situation in the region, in order to help the ...
LI Yuan, LIU Ziqi, WU Wenxian
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Shuitu Baochi Xuebao, 2002 对贵州喀斯特山区的土壤侵蚀所产生的环境变异作了论述。贵州喀斯特山区的土壤侵蚀不仅使土壤质量发生变异，而且对生态环境、农业生产环境都产生了十分严重的影响。自然植被减少、土地退化、石漠化已成为贵州喀斯特山区环境变异的重要特征。贵州喀斯特山区生态系统结构和功能的重建是治理贵州喀斯特环境变异的根本途径。
林昌虎 朱安国
doaj
Guangxi Zhiwu该文报道了广西苦苣苔科报春苣苔属（Primulina Hance）一新种——平果报春苣苔（Primulina pingguoensis H. S. Ma & B. Pan），该新种在形态学上与囊筒报春苣苔（P. carinata Y. G. Wei, F. Wen & H. Z. Lü）相似，但两者能明显区别，平果报春苣苔花冠裂片狭披针形至线型，长宽比大于2（vs.圆形至卵圆形，长宽比小于1.5），花冠内部具8~10条紫色条纹，与花冠同色，无明显导蜜线（vs.棕色条纹，与花冠不同色，具两条黄色导蜜线 ...
马 虎生 +3 more
doaj +1 more source
Spatial-Temporal Variations and Influencing Factors of Water-related Ecosystem Services in Southwest China Under Complex Terrain [PDF]
[Objective] The study of spatial-temporal variations and influencing factors of water-related ecosystem services under complex terrain in Southwest China can serve as a foundation for the ecological management and sustainable development in this region. [
BIAN Hongyan +3 more
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