Results 21 to 30 of about 1,188 (130)

Construction of Ecological Security Pattern in Ecological Barrier Zone of Loess Plateau Based on “Importance-Sensitivity-Landscape Features” [PDF]

open access: yes, 2022
[Objective] The relationship between ecological spatial network structure and soil conservation was analyzed in order to provide countermeasures and suggestions for improving ecosystem services in the Loess Plateau barrier region.
Liu Hongjun   +5 more
core   +1 more source

基于MaxEnt模型的新疆鹅喉羚生境适宜性评价

open access: yes野生动物学报, 2019
苏比奴尔·艾力 热木图拉·阿卜杜克热木 于苏云江·吗米提敏塔依尔江·麦麦提 佐日古丽·伊斯马伊力 马合木提·哈力克
doaj   +1 more source

应用MaxEnt模型预测海南溪树蛙地理分布

open access: yes野生动物学报, 2021
海南溪树蛙(Buergeria oxycephala)是中国特有种,处于近危状态,仅分布于海南岛,预测海南溪树蛙潜在适生区可为物种保护与研究提供重要参考。依据该蛙68个物种位点数据和9个环境因子,利用最大熵模型(MaxEnt)与地理信息系统(GIS),对其在海南岛的潜在适生区进行预测,并通过刀切法和单一环境因子的响应曲线分析其与环境因子之间的关系。结果表明:海拔、气温季节性变化、坡度和气温年较差这4个因子对模型增益效果最为明显。海南溪树蛙适生区的最佳环境因子范围,海拔430—1200 m ...
牟超盛 1 齐旭明 2 谢林顺 3 钱天宇 1 周正彦 1   +1 more
doaj  

基于MAXENT模型的古田山保护区黑麂生境适宜性评价

open access: yes, 2020
浙江开化古田山国家级自然保护区是黑麂(Muntiacus crinifrons)的集中分布区之一。近年来,保护区内黑麂面临着生境丧失和破碎化的威胁。本研究应用MAXENT模型,结合古田山保护区2014—2017年的红外相机监测数据和主要环境变量数据,对保护区内黑麂生境适宜性的季节变化特征及影响因素进行了评价与分析。结果表明:距阔叶林距离、海拔两个变量对黑麂生境适宜性的季节性变化影响最为显著。古田山保护区不同季节黑麂的适宜生境面积为:春季2 086.38 hm~2、夏季2 608.74 hm~2、秋季2 ...
乐志芳   +5 more
core   +1 more source

新疆兔属三物种潜在生境分布及未来气候变化的影响

open access: yes野生动物学报, 2020
气候变化是导致生境丧失和生物多样性下降的主要因素之一。研究气候变化对物种生境的影响对于保护物种多样性,维护生态系统功能完整性具有重要意义。本研究以新疆为研究区域,以塔里木兔、草兔和雪兔为研究对象,选取可能影响它们生境分布的10个环境因子,利用MaxEnt模型预测它们当前和未来RCP 4.5和RCP 8.5两种气候情景下2041—2060年(2050s)、2061—2080年(2070s)的潜在生境分布,并找出影响生境分布的关键因子。研究结果表明,模型预测新疆兔属3个物种生境分布的精度达到较高水平 ...
伊拉木江·托合塔洪1阿迪力·艾合麦提 1   +5 more
doaj  

Different Responses of Two Endangered Sister Tree Species to Climate Change: A Comparison Between Island and Continental Populations in Tropical Asia 两个濒危姊妹物种对气候变化的不同响应:热带亚洲岛屿与大陆种群的比较

open access: yesIntegrative Conservation, Volume 4, Issue 1, Page 95-106, March 2025.
Climate change is widely recognized as a major threat to biodiversity and a critical factor contributing to the decline of species and populations. The study investigates the differential impacts of climate change on endangered continental and island specie.
Ling Hu   +9 more
wiley   +1 more source

Ecological safety assessment of egrets in Xiamen National Nature Reserve [PDF]

open access: yes, 2006
[摘要]:白鹭的生态安全是指白鹭所处的生态系统能够维持白鹭种群持续生存的需求和条件, 其中关键是白鹭生境的安全。白鹭 生境安全从根本上取决于生境的适宜性和人为对生境的干扰程度, 又可以理解为生境受到人类干扰后所能保持的生态适宜性。 分别选择白鹭在厦门的2 个主要繁殖栖息生境 大屿岛和鸡屿岛和10 个代表性觅食生境为研究对象, 对白鹭生境的生态适 宜性和人为干扰程度进行分别评价。其中, 生境适宜性评价采用指标体系法, 通过赋值、计算进行评价; 人为干扰程度评价主要 依靠地理信息系统分析方法 ...
HONG Hua Sheng   +7 more
core  

Planning coordination of rural tourism and village renovation—a case of Aigrette Vale in Huzhou City(乡村旅游开发与农村居民点整治的规划协调对策研究——湖州市白鹭谷案例)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2008
乡村旅游开发过程往往涉及到农村居民点整治问题,两者的规划协调对促进乡村旅游与新农村建设具有重要意义.以湖州市白鹭谷旅游开发与农村居民点整治规划为例,剖析了两者在规划协调中存在的问题,构建了两者协调发展框架,并从土地功能适宜性分区、村落-旅游体系有机聚合、延续乡村景现意境、社区参与、生态环境分级控制保护、联动合作机制与渐进开发等六个方面提出了具体对策.
WANGWei-wu(王伟武)   +2 more
doaj   +1 more source

Conservation Gap Within a Nature Reserve: A Case Study in the Biodiversity Hotspot of Rare and Endangered Plants at the Southern Gaoligong Mountains 高黎贡山南段稀有濒危植物保护空缺分析

open access: yesIntegrative Conservation, Volume 4, Issue 1, Page 71-84, March 2025.
Gaoligong Mountain is home to a large number of rare and endangered species, but the effectiveness of conservation measures in the Gaoligong Mountain Nature Reserve remains uncertain. We predicted the potential distribution areas of 361 rare and endangered wild plants in southern Gaoligong Mountain under current and future climate change scenarios and ...
Yong‐Jing‐Wen Yang   +3 more
wiley   +1 more source

Strangler fig–host tree associations: Insights into the ecology and management of tropical urban green spaces

open access: yesPLANTS, PEOPLE, PLANET, Volume 7, Issue 1, Page 159-175, January 2025.
The strangler fig is known for its hemiepiphytic growth form and conspicuous strangling behavior in the tropics worldwide. It also plays an important role in providing ecological functions in tropical urban ecosystems. This study reveals strangler figs tend to colonize large trees with suitable microsites in a large tropical botanical garden and cause ...
Yu‐Xuan Mo   +11 more
wiley   +1 more source

Home - About - Disclaimer - Privacy