Results 31 to 40 of about 6,364 (158)

我国生物地理学研究进展 [PDF]

open access: yes, 2009
生物地理学研究是生物学和地理学交叉非常明显的部门自然地理学学科,它具有很强的基础研究特点,同时研究成果也具有很大的应用潜力。近年来,我国生物地理学基础研究在国家自然科学基金委等部门的支持下,在山地植被与地理环境、干旱半干旱区植被与地理环境、植物区系、植物物候、土壤动物与土壤生态功能、土壤生物结皮等方面开展了全面而深入的研究。同时拓展了传统生物地理学的研究方向,在植物地理学与全球变化、植物地理学与生物多样性保护、植物地理学与生态系统管理等方面也开展了大量研究。尤为可贵的是干旱半干旱区土壤生物结皮研究 ...
冷疏影   +8 more
core  

Contrasting Patterns of Phyllosphere Fungal Diversity Between Angiosperms and Gymnosperms Along a Subalpine‐Elevation Gradient 题目:亚高山海拔梯度上被子植物与裸子植物叶际真菌多样性的相反格局

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 476-490, September 2025.
The leaf functional traits of angiosperms and gymnosperms in mountain ecosystems significantly influence phyllosphere fungal diversity. These traits are critical for understanding fungal stress resistance and elevational adaptation, which aids in predicting plant responses to climate change.
Xiaocheng Yu   +7 more
wiley   +1 more source

模拟植被类型及空间配置对坡面流水动力学特性的影响

open access: yesShuitu Baochi Xuebao, 2017
通过室内水槽模拟冲刷试验,研究缓坡坡降1.4%、流量0.6~1.8 L/s、非淹没条件下,植被类型(柔性植被、刚性植被)和植被配置格局(棋盘状格局、长条状格局、带状格局)对坡面流水深、流速、流态、达西阻力系数等水动力学特性的影响,探究其规律。结果表明:(1)与裸坡相比,植被具有雍水缓流作用,水深雍高1.4~2.8倍,流速延缓31%~65%,植被格局较植被类型作用更为明显,其中柔性植被、带状格局雍水效果最好。(2)坡面流态指数m显示刚性植被、棋盘状格局条件下水流紊动性最强,而坡面综合指数k显示刚性植被 ...
孟铖铖, 杨坪坪
doaj  

湘中山地土壤线虫(Nematoda)生态地理群的研究 [PDF]

open access: yes, 1992
作者对湖南南岳衡山和长沙岳麓山土壤线虫进行了两年多的定位研究,共获得18511条土壤线虫标本.经分类鉴定,计有24个种 ...
伍惠生, 张友梅, 王振中
core  

Mining-affected water resources and ecological effects in ecologically fragile mining areas of western China [PDF]

open access: yes
The ecologically fragile mining area in the west is an important coal production base in China, and the current scale and intensity of coal mining has far exceeded its environmental carrying capacity, which is very likely to cause irreversible damage to ...
Liqiang YU   +4 more
core   +1 more source

Promoting Conservation and Coexistence: The Case of Blackbucks (Antilope cervicapra L.) and the Bishnoi Community in Abohar, Punjab, India 促进保育与共存:以印度旁遮普邦阿博哈尔的黑羚 (Antilope cervicapra L.) 和比什诺伊社区为例

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 393-404, September 2025.
We studied the challenges in human‐wildlife coexistence in Abohar wildlife sanctuary and the surrounding landscape in Punjab, India. We found that the local people's unique intrinsic motivation for conservation and the traditional approaches to conservation are no longer sufficient.
Geethanjali Mariaselvam   +5 more
wiley   +1 more source

Vegetation dominantly shapes the elevational patterns of archaeal and protistan communities and their ecological functions in the Hengduan Mountains, Tibetan Plateau

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2327-2341, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract While elevational patterns of soil bacterial and fungal communities in mountain ecosystems have been well documented, the assembly processes of soil archaeal and protistan communities, and their linkage with ecosystem multifunctionality (EMF), remain poorly understood ...
Bao‐Min Yao   +14 more
wiley   +1 more source

黄土丘陵半干旱区不同类型植被水保生态效益研究

open access: yesShuitu Baochi Xuebao, 2000
通过研究表明,不同类型植被减少径流和泥沙的功效不同,东坡不同类型植被小区径流深由大到小的顺序为:荒坡〉沙棘(平茬)〉水棘+小叶杨〉农地,北坡为油松〉油松+沙棘〉沙棘林;东坡产沙量由大到小的顺序为农地〉荒坡〉沙棘(平茬)〉沙棘+小叶杨,北坡为油松〉油松+沙棘〉沙棘。不同类型植被在生长季的土壤水分平均值均很低,其变化范围在6.33%~9.60%;沙棘林地土壤形成利用性干层。
陈云明 侯喜禄
doaj   +2 more sources

Seasonality of temperature dependence of methane fluxes from natural wetlands

open access: yesFunctional Ecology, Volume 39, Issue 9, Page 2383-2397, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Temperature dependence is a crucial parameter in estimating methane (CH4) fluxes from natural wetlands, yet our understanding of this parameter remains inadequate. Seasonal fluctuations in water levels and ecosystem productivity lead to seasonal differences in CH4 ...
Jinshuai Li   +6 more
wiley   +1 more source

黄土丘陵小流域植被生态用水评价

open access: yesShuitu Baochi Xuebao, 2005
以黄土丘陵区安家沟小流域为例,计算了植被最小需水量,评价了不同植被类型的生态用水量。研究结果表明:(1)土壤含水量、蒸散量均与植被类型和降雨量密切相关。对于相同年份,乔灌林地的土壤含水量和蒸散量都显著地大于农地;对于相同的植被类型,干旱年份(2 0 0 2年)的土壤含水量和蒸散量都显著小于湿润年份(2 0 0 3年)。(2 )从月尺度来说,不论是干旱年还是湿润年,植被生态用水在生长季节旺季均低于其最小生态需水量;从年尺度来说,干旱年份所有植被生态用水均低于其最小生态需水量,但湿润年份所有植被(除小麦外 ...
黄奕龙 陈利顶 傅伯杰 张利萍 王仰麟
doaj  

Home - About - Disclaimer - Privacy