Results 101 to 110 of about 628,784 (296)

Soil drought thresholds of alpine grassland deceased rapidly under the influence of extreme low temperature in northeastern Qinghai-Tibet Plateau

Ecological Processes
Background Droughts likely lead to the decrease of vegetation coverage and plant productivity. Due to climate change, more extreme climatic events, including soil droughts and extreme temperatures, may occur both independently and simultaneously ...
Yuxin Wang, Yu Du, Wenzhi Zhao, Hu Liu, Jiachang Jiang, Zhibin He   +5 more
doaj   +1 more source

Effects of grassland management on plants and invertebrates in Transylvania, Romania : a threat to local biodiversity hotspots [PDF]

, 2007
Nutrient-poor grasslands are considered regional biodiversity hotspots and therefore of high conservation value (Blab & Kudrna 1982; Bignal & McCracken 1996; Sánchez-Zapata et al. 2003).
Craioveanu, Cristina
core   +1 more source

Characteristics and Influencing Factors of Soil Shear Strength in Gully Erosion at Different Developmental Segments of Subalpine Meadows

Land Degradation &Development, EarlyView.
ABSTRACT Subalpine meadows play important roles in biodiversity conservation and soil carbon sequestration, but gully erosion poses a serious threat to their ecological stability. Soil shear strength (τ) is a key mechanical parameter for evaluating gully stability and soil resistance to failure. However, the spatial variation in soil shear strength and
Xiaofeng Yang, Keyu Yan, Qingsong Duan, Xiaohan Mei, Pingping Chen, Yanmei Hu, Yanrui Shao, Yanjun Mao, Shufang Li, Zhengfa Chen   +9 more
wiley   +1 more source

Belowground bud banks and land use change: roles of vegetation and soil properties in mediating the composition of bud banks in different ecosystems

Frontiers in Plant Science
IntroductionBelowground bud banks play integral roles in vegetation regeneration and ecological succession of plant communities; however, human-caused changes in land use severely threaten their resilience and regrowth. Although vegetation attributes and
Jing Wu, Xianzhang Hou, Lan Xu, Quanlai Zhou, Yongcui Wang, Ziwu Guo, Michael Opoku Adomako, Michael Opoku Adomako, Qun Ma   +8 more
doaj   +1 more source

Macroecology of global alpine vegetation

, 2021
Gli ecosistemi alpini, ossia gli habitat di alta quota al di sopra della linea degli alberi, sono essenziali per il sostentamento umano e sono tra gli ambienti più minacciati dal cambiamento climatico di origine antropica. Nonostante il consenso generale sulla distribuzione e le caratteristiche ecologiche dei biomi terrestri, l'effettiva estensione e ...
openaire   +1 more source

Importance of vegetation, topography and flow paths for water transit times of base flow in alpine headwater catchments [PDF]

, 2013
The mean transit time (MTT) of water in a catchment gives information about storage, flow paths, sources of water and thus also about retention and release of solutes in a catchment.
M. H. Mueller, C. Alewell, Weingartner, R., Mueller, Matthias H., Alewell, C., Weingartner, Rolf, R. Weingartner, Mueller, M. H.   +7 more
core   +3 more sources

A Study on the Distribution Characteristics of Salinity and Nutrients and the Migration Mechanism of Soil Salt in the Delingha Saline‐Alkali Soil Profile of the Qaidam Basin

Land Degradation &Development, EarlyView.
ABSTRACT Soil salinization negatively impacts the economic development and ecological environment, particularly in the arid and semiarid regions of China. The Qaidam Basin constitutes a major distribution area of saline‐alkali land in the country. However, the distribution patterns of salinity and nutrients within soil profiles and the underlying salt ...
Hongpan Xue, Chenyu Wang, Yiyan Chen, Binkai Li, Aiyin Cheng, Hongyu Li, Bo Dong, Xiuyun Min, Haicheng Wei   +8 more
wiley   +1 more source

Alpine grassland soils contain large proportion of labile carbon but indicate long turnover times [PDF]

, 2011
Alpine soils are expected to contain large amounts of labile carbon (C) which may become a further source of atmospheric carbon dioxide (CO2) as a result of global warming.
Leifeld, J., Budge, K., Hiltbrunner, Erika, K. Budge, J. Fuhrer, J. Leifeld, E. Hiltbrunner, Fuhrer, J.   +7 more
core   +2 more sources

Plant Trait‐ and Soil‐Mediated Responses of Herbaceous Aboveground Biomass Across Community Types Along a Degradation Gradient in the Desert Steppe

Land Degradation &Development, EarlyView.
ABSTRACT Grassland degradation profoundly alters the structure and function of desert steppe ecosystems. However, the responses of herbaceous aboveground biomass (Herb‐AGB) to degradation across different plant community types and the underlying mechanisms remain poorly understood.
Huaihai Wang, Zhaobin Song, Ya Hu, Ping Yue, Jingjuan Qiao, Xiaoxue Zhang, Zhengjiaoyi Wang, Fangwei Hao, Xiaoan Zuo   +8 more
wiley   +1 more source

Shrub expansion in tundra ecosystems: dynamics, impacts and research priorities [PDF]

, 2011
Recent research using repeat photography, long-term ecological monitoring and dendrochronology has documented shrub expansion in arctic, high-latitude and alpine tundra ecosystems.
Rayback, Shelly A, Hallinger, M., Menard, CB, Lantz, Trevor, Hermanutz, Luise, Ravolainen, Virve, Myers-Smith, IH, Weijers, Stef, Rozema, Jelte, Hik, DS, Hallinger, M, Rayback, S A, Hik, D S, Schaepman-Strub, G, Forbes, BC, Forbes, B C, Forbes, Bruce C., Epstein, Howard E., Schmidt, NM, Trant, A, Ravolainen, V, Weijers, Niels Martin, Schaepman-Strub, Gabriela, Menard, Cecile B., Lantz, T, Forbes, Bruce C.; id_orcid, Elmendorf, Sarah, Grogan, P, Welker, J, Forbes, B.C., Wilmking, M, Wipf, S, Rixen, C, Wilmking, M., Blok, D., Collier, L S, Rozema, J, Ropars, Pascale, Levesque, Esther, Macias-Fauria, Marc, Hik, David S., Blok, D, Epstein, H E, Wipf, Sonja, Elmendorf, S, Tape, Ken D, Venn, S, Lantz, T., Hallinger, Martin, Tape, Ken D., Hermanutz, L, Venn, Susanna, Myers-Smith, I H, Sass-Klaassen, Ute, Sass, U.G.W., Grogan, Paul, Boudreau, Stephane, Andreu-Hayles, Laia, Schmidt, N M, Collier, Laura Siegwart, Myers-Smith, Isla, Ropars, P, Wilmking, Martin, Goetz, S, Blok, Daan, Rixen, Christian, Lévesque, E, Boudreau, S, Tape, K D, Tape, KD, Goetz, Scott, Macias-Fauria, M, Myers-Smith, Isla H., Rayback, Shelly A., Weijers, S, Ménard, C B, Myers-Smith, I.H., Sass-Klaassen, U, Collier, LS, Rayback, SA, Andreu-Hayles, L, Schmidt, Niels Martin, Welker, Jeffrey, Menard, Cecile B, Trant, Andrew, Epstein, HE   +85 more
core   +1 more source