Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/geb.12382 |
Human impacts and aridity differentially alter soil N availability in drylands worldwide | |
Delgado-Baquerizo, Manuel1,2; Maestre, Fernando T.1; Gallardo, Antonio3; Eldridge, David J.4; Soliveres, Santiago1,5; Bowker, Matthew A.6; Prado-Comesana, Ana3; Gaitan, Juan7; Quero, Jose L.8; Ochoa, Victoria1; Gozalo, Beatriz1; Garcia-Gomez, Miguel1; Garcia-Palacios, Pablo1,9; Berdugo, Miguel1; Valencia, Enrique1; Escolar, Cristina1; Arredondo, Tulio10; Barraza-Zepeda, Claudia11; Boeken, Bertrand R.12; Bran, Donaldo7; Cabrera, Omar13; Carreira, Jose A.14; Chaieb, Mohamed15; Conceicao, Abel A.16; Derak, Mchich17; Ernst, Ricardo18; Espinosa, Carlos I.13; Florentino, Adriana19; Gatica, Gabriel20; Ghiloufi, Wahida15; Gomez-Gonzalez, Susana21; Gutierrez, Julio R.11,22,23; Hernandez, Rosa M.24; Huber-Sannwald, Elisabeth10; Jankju, Mohammad25; Mau, Rebecca L.26; Miriti, Maria27; Monerris, Jorge28; Morici, Ernesto18; Muchane, Muchai29; Naseri, Kamal25; Pucheta, Eduardo20; Ramirez, Elizabeth24; Ramirez-Collantes, David A.30; Romao, Roberto L.16; Tighe, Matthew31; Torres, Duilio32; Torres-Diaz, Cristian21; Val, James33; Veiga, Jose P.34; Wang, Deli35; Yuan, Xia35; Zaady, Eli36 | |
通讯作者 | Delgado-Baquerizo, Manuel |
来源期刊 | GLOBAL ECOLOGY AND BIOGEOGRAPHY |
ISSN | 1466-822X |
EISSN | 1466-8238 |
出版年 | 2016 |
卷号 | 25期号:1页码:36-45 |
英文摘要 | Aims Climate and human impacts are changing the nitrogen (N) inputs and losses in terrestrial ecosystems. However, it is largely unknown how these two major drivers of global change will simultaneously influence the N cycle in drylands, the largest terrestrial biome on the planet. We conducted a global observational study to evaluate how aridity and human impacts, together with biotic and abiotic factors, affect key soil variables of the N cycle. Location Two hundred and twenty-four dryland sites from all continents except Antarctica widely differing in their environmental conditions and human influence. Methods Using a standardized field survey, we measured aridity, human impacts (i.e. proxies of land uses and air pollution), key biophysical variables (i.e. soil pH and texture and total plant cover) and six important variables related to N cycling in soils: total N, organic N, ammonium, nitrate, dissolved organic: inorganic N and N mineralization rates. We used structural equation modelling to assess the direct and indirect effects of aridity, human impacts and key biophysical variables on the N cycle. Results Human impacts increased the concentration of total N, while aridity reduced it. The effects of aridity and human impacts on the N cycle were spatially disconnected, which may favour scarcity of N in the most arid areas and promote its accumulation in the least arid areas. Main conclusions We found that increasing aridity and anthropogenic pressure are spatially disconnected in drylands. This implies that while places with low aridity and high human impact accumulate N, most arid sites with the lowest human impacts lose N. Our analyses also provide evidence that both increasing aridity and human impacts may enhance the relative dominance of inorganic N in dryland soils, having a negative impact on key functions and services provided by these ecosystems. |
英文关键词 | Aridity depolymerization global change human impacts mineralization N cycle |
类型 | Article |
语种 | 英语 |
国家 | Spain ; Australia ; Switzerland ; USA ; Argentina ; France ; Mexico ; Chile ; Israel ; Ecuador ; Tunisia ; Brazil ; Morocco ; Venezuela ; Iran ; Canada ; Kenya ; Peru ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000367728900005 |
WOS关键词 | NITROGEN-CYCLE ; MINERALIZATION ; PERSPECTIVE ; EMISSIONS ; RESPONSES ; QUANTIFY ; ARIZONA ; PHOENIX ; PULSES ; GROWTH |
WOS类目 | Ecology ; Geography, Physical |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
来源机构 | Ben-Gurion University of the Negev ; French National Research Institute for Sustainable Development |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/193328 |
作者单位 | 1.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Biol & Geol, Fis & Quim Inorgan,Area Biodiversidad & Conservac, Mostoles 28933, Spain; 2.Univ Western Sydney, Hawkesbury Inst Environm, Penrith, NSW 2751, Australia; 3.Univ Pablo de Olavide, Dept Sistemas Fis Quim & Nat, Seville 41013, Spain; 4.Univ New S Wales, Sch Biol Earth & Environm Sci, Sydney, NSW 2052, Australia; 5.Univ Bern, Inst Plant Physiol, CH-3013 Bern, Switzerland; 6.No Arizona Univ, Sch Forestry, Flagstaff, AZ 86011 USA; 7.Estn Expt San Carlos de Bariloche, Inst Nacl Tecnol Agropecuaria, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina; 8.Univ Cordoba, Dept Ingn Forestal, E-14071 Cordoba, Spain; 9.CNRS, Ctr Ecol Fonct & Evolut, F-34293 Montpellier, France; 10.Inst Potosino Invest Cientif & Tecnol, Div Ciencias Ambientales, San Luis Potosi, San Luis Potosi, Mexico; 11.Univ La Serena, Dept Biol, La Serena, Chile; 12.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Wyler Dept Dryland Agr, IL-84990 Sede Boqer, Israel; 13.Univ Tecn Particular Loja, Dept Ciencias Nat, Marcelino Champagnat, Loja, Ecuador; 14.Univ Jaen, Dept Biol Anim Biol Vegetal & Ecol, Jaen 23071, Spain; 15.Univ Sfax, UR Vegetal Div & Arid Land Ecosyst, Fac Sci, Sfax 3018, Tunisia; 16.Univ Estadual Feira de Santana, Dept Ciencias Biol, BR-44036900 Feira De Santana, BA, Brazil; 17.Direct Reg Eaux & Forets & Lutte Contre Desertifi, Tetouan 93000, Morocco; 18.Univ Nacl La Pampa, Fac Agron, RA-6300 Santa Rosa, La Pampa, Argentina; 19.Cent Univ Venezuela, Fac Agron, Inst Edafol, Caracas, Venezuela; 20.Univ Nacl San Juan, Fac Ciencias Exactas Fis & Nat, Dept Biol, San Juan, Argentina; 21.Univ Bio Bio, Dept Ciencias Basicas, Lab Genom & Biodiversidad, Chillan, Chile; 22.Inst Ecol & Biodiversida, Santiago, Chile; 23.Ctr Estudios Avanzados Zonas Aridas, La Serena, Chile; 24.Univ Expt Simon Rodriguez, Ctr Agroecol Trop, Lab Biogeoquim, Caracas, Venezuela; 25.Ferdowsi Univ Mashhad, Fac Nat Resources & Environm, Dept Range & Watershed Management, Mashhad 917751363, Iran; 26.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA; 27.Ohio State Univ, Dept Evolut Ecol & Organismal Biol, Columbus, OH 43210 USA; 28.Univ Quebec, Dept Sci Biol, Montreal H2X 3Y5, PQ, Canada; 29.Natl Museums Kenya, Dept Zool, Nairobi 7842000500, Kenya; 30.Int Potato Ctr, Prod Syst & Environm Subprogram, Lima 12, Peru; 31.Univ New England, Sch Environm & Rural Sci, Dept Agron & Soil Sci, Armidale, NSW 2351, Australia; 32.Univ Ctr Occidental Lisandro Alvarado, Dept Quim & Suelos Decanato Agron, Barquisimeto 3001, Venezuela; 33.Off Environm & Heritage, Buronga, NSW 2739, Australia; 34.CSIC, Museo Nacl Ciencias Nat, Dept Ecol Evolut, E-28006 Madrid, Spain; 35.NE Normal Univ, Inst Grassland Sci, Key Lab Vegetat Ecol, Minist Educ, Changchun 130024, Jilin, Peoples R China; 36.Agr Res Org, Gilat Res Ctr, Minist Agr, Dept Nat Resources, IL-85280 Negev, Israel |
推荐引用方式 GB/T 7714 | Delgado-Baquerizo, Manuel,Maestre, Fernando T.,Gallardo, Antonio,et al. Human impacts and aridity differentially alter soil N availability in drylands worldwide[J]. Ben-Gurion University of the Negev, French National Research Institute for Sustainable Development,2016,25(1):36-45. |
APA | Delgado-Baquerizo, Manuel.,Maestre, Fernando T..,Gallardo, Antonio.,Eldridge, David J..,Soliveres, Santiago.,...&Zaady, Eli.(2016).Human impacts and aridity differentially alter soil N availability in drylands worldwide.GLOBAL ECOLOGY AND BIOGEOGRAPHY,25(1),36-45. |
MLA | Delgado-Baquerizo, Manuel,et al."Human impacts and aridity differentially alter soil N availability in drylands worldwide".GLOBAL ECOLOGY AND BIOGEOGRAPHY 25.1(2016):36-45. |
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