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Grassland Resources and Development of Grassland Agriculture in Temperate China
124 Rangelands 10(3), June 1988 Grassland Resources and Development of Grassland Agriculture in Temperate China Zhu Tinachen Natural temperate grasslands occupy 2.4 million km2 or one-quarter ofthe area of China. They form a broad beltfrom the plains of the northeast to the Tibetan Plateau of the southwest (Fig. 1). The nature and distribution of thegrassland is determined in large part by the influence of the monsoon. In the north- east where the monsoon is well developed, the grassland owes its existenceto dry conditions in the spring. Westward and southwestward wherethe monsooninfluence is weaker, the grasslandsoccupy higherelevations (to as high as 5,000 m) in response to the semiarid and arid regional climate. Similarly, temperate grasslands occur at high elevations in mountains of the desert region in northwestern China, far beyond the continuous grassland belt. Some 4,000 species offlowering plants comprise thevegetation ofthese temper- ate grasslands.About 200 are important forage species. The livestock population in China is about 130 million Fig. I Steppe zone of China cattle units. Most of the livestock are dependent on these 1.Meadow steppe, 2.Typical steppe. 3.Desert steppe. 4. Shrub steppe. 5. Alpine steppe. natural temperategrasslands. GrasslandTypes responding to climate and distributed in the form of a belt. Meadows are not zonal; they are controlled by local envi- Based on the concept of zonal vegetation, the natural ronments.About 80 ofthe area of is occu- of China can be divided into two percent grassland temperategrasslands major pied by zone steppetypes and about 20 percent by meadow types: steppe and meadow. -
Stuart, Trees & Shrubs
Excerpted from ©2001 by the Regents of the University of California. All rights reserved. May not be copied or reused without express written permission of the publisher. click here to BUY THIS BOOK INTRODUCTION HOW THE BOOK IS ORGANIZED Conifers and broadleaved trees and shrubs are treated separately in this book. Each group has its own set of keys to genera and species, as well as plant descriptions. Plant descriptions are or- ganized alphabetically by genus and then by species. In a few cases, we have included separate subspecies or varieties. Gen- era in which we include more than one species have short generic descriptions and species keys. Detailed species descrip- tions follow the generic descriptions. A species description in- cludes growth habit, distinctive characteristics, habitat, range (including a map), and remarks. Most species descriptions have an illustration showing leaves and either cones, flowers, or fruits. Illustrations were drawn from fresh specimens with the intent of showing diagnostic characteristics. Plant rarity is based on rankings derived from the California Native Plant Society and federal and state lists (Skinner and Pavlik 1994). Two lists are presented in the appendixes. The first is a list of species grouped by distinctive morphological features. The second is a checklist of trees and shrubs indexed alphabetically by family, genus, species, and common name. CLASSIFICATION To classify is a natural human trait. It is our nature to place ob- jects into similar groups and to place those groups into a hier- 1 TABLE 1 CLASSIFICATION HIERARCHY OF A CONIFER AND A BROADLEAVED TREE Taxonomic rank Conifer Broadleaved tree Kingdom Plantae Plantae Division Pinophyta Magnoliophyta Class Pinopsida Magnoliopsida Order Pinales Sapindales Family Pinaceae Aceraceae Genus Abies Acer Species epithet magnifica glabrum Variety shastensis torreyi Common name Shasta red fir mountain maple archy. -
THE KAZAKH STEPPE Conserving the World's Largest Dry
THE KAZAKH STEPPE Conserving the world’s largest dry steppe region Photo: Chris Magin, IUCN Saryarka is an internationally significant mosaic of steppe and wetlands The Dry Steppe Region The steppe grasslands of Eurasia were once among the most extensive in the world, stretching from eastern Romania, Moldova and Ukraine in eastern Europe (often referred to as the Pontic steppe) east through Kazakhstan and western Russia). Together, the Pontic and Kazakh steppes, often collectively referred to as the Pontian steppe, comprise about 24% of the world’s temperate grasslands. They eventually link to the vast grasslands of eastern Asia extending to Mongolia, China and Siberian Russia, together creating the largest complex of temperate grasslands on earth. The remaining extent and ecological condition of these grasslands varies considerably by region. Today in eastern Europe, for example, only 3–5 % remain in a natural or near natural state, with only 0.2% protected. In contrast, the eastward extension of these steppes into Kazakhstan reveals lower levels of disturbance, where as much as 36% remain in a semi-natural or natural state. Although current levels of protection in this region are also very low, the steppes of Kazakhstan have the potential to offer significant opportunities for increased conservation and protection. The Kazakh steppe, also known as the Kirghiz steppe, is itself one of the largest dry steppe regions on the planet, covering approximately 804,500 square kilometres and extending more than 2,200 kilometres from north of the Caspian Sea east to the Altai Mountains. These grasslands lie at the southern end of the Ural Mountains, the traditional dividing line between Europe and Asia. -
Temperate Grasslandsgrasslands Temperate Grasslands
TemperateTemperate GrasslandsGrasslands Temperate Grasslands § One of the most extensive of the biomes § North America: prairies 350 million ha running from eastern deciduous forest border to western cordilleras Konza Prairie, Kansas Temperate Grasslands § One of the most extensive of the biomes § Eurasia: steppes 250 million ha running from Hungary to Manchuria Mongolian steppe Russian Steppe Temperate Grasslands § One of the most extensive of the biomes § Argentina, Uruguay: pampas Temperate Grasslands § One of the most extensive of the biomes § Argentina, Uruguay: pampas Cortaderia - pampas grass Temperate Grasslands § One of the most extensive of the biomes § South Africa: grassveldt Temperate Grasslands § Temperate grasslands are adapted to recurring drought (50 - 120 cm rain) § Temperate grasslands appear homogenous but important structural and floristic differences have developed in response to regional and local conditions (e.g. in prairie province) § increasing latitude & east to west: warm to cold and moist to dry Temperate Grasslands § American prairie gradients: west to east Curtis Prairie - tall grass, Wisconsin Shortgrass prairie, Nebraska Konza Prairie - mixed grass, Kansas Temperate Grasslands § American prairie gradients: forest - grassland Curtis Prairie - tall grass, Wisconsin Prairie-oak savanna Temperate Grasslands § soils are rich 'chernozens' or 'udolls’ § thick organic layer of very dark humus; active earthworm and soil fauna activity making this soil one of the most productive of terrestrial systems § light rainfall -
The Mounties and the Origins of Peace in the Canadian Prairies∗
The Mounties and the Origins of Peace in the Canadian Prairies∗ Pascual Restrepo October 2015 Abstract Through a study of the settlement of the Canadian Prairies, I examine if differences in violence across regions reflect the historical ability of the state to centralize authority and monopolize violence. I compare settlements that in the late 1880s were located near Mountie- created forts with those that were not. Data from the 1911 Census reveal that settlements far from the Mounties’ reach had unusually high adult male death rates. Even a century later the violence in these communities continues. In 2014, communities located at least 100 kilometers from former Mountie forts during their settlement had 45% more homicides and 55% more violent crimes per capita than communities located closer to former forts. I argue that these differences may be explained by a violent culture of honor that emerged as an adaptation to the lack of a central authority during the settlement but persisted over time. In line with this interpretation, I find that those who live in once-lawless areas are more likely to hold conservative political views. In addition, I use data for hockey players to uncover the influence of culture on individual behavior. Though players interact in a common environment, those who were born in areas historically outside the reach of the Mounties are penalized for their violent behavior more often than those who were not. Keywords: Culture, Violence, Culture of honor, Monopoly of violence, Institutions. JEL Classification: N32, N42, D72, D74, H40, J15, K14, K42, Z10 ∗I thank Daron Acemoglu, Abhijit Banerjee, Alberto Chong, Pauline Grosjean, Suresh Naidu, Ben Olken and Hans-Joachim Voth for their comments and helpful discussion. -
Hydrological Extremes in the Canadian Prairies in the Last Decade Due to the ENSO Teleconnection—A Comparative Case Study Using WRF
water Article Hydrological Extremes in the Canadian Prairies in the Last Decade due to the ENSO Teleconnection—A Comparative Case Study Using WRF Soumik Basu * , David J. Sauchyn and Muhammad Rehan Anis Prairie Adaptation Research Collaborative, Regina, SK S4S 0A2, Canada; [email protected] (D.J.S.); [email protected] (M.R.A.) * Correspondence: [email protected] Received: 8 September 2020; Accepted: 21 October 2020; Published: 23 October 2020 Abstract: In the Prairie provinces of Alberta, Saskatchewan, and Manitoba, agricultural production depends on winter and spring precipitation. There is large interannual variability related to the teleconnection between the regional hydroclimate and El Niño and La Niña in the Tropical Pacific. A modeling experiment was conducted to simulate climatic and hydrological parameters in the Canadian Prairie region during strong El Niño and La Niña events of the last decade in 2015–2016 and 2010–2011, respectively. The National Center for Atmospheric Research (NCAR) Weather Research and Forecasting (WRF) model was employed to perform two sets of sensitivity experiments with a nested domain at 10 km resolution using the European Centre for Medium-Range Weather Forecasts Reanalysis (ERA) interim data as the lateral boundary forcing. Analysis of the hourly model output provides a detailed simulation of the drier winter, with less soil moisture in the following spring, during the 2015–2016 El Niño and a wet winter during the La Niña of 2010–2011. The high-resolution WRF simulation of these recent weather events agrees well with observations from weather stations and water gauges. Therefore, we were able to take advantage of the WRF model to simulate recent weather with high spatial and temporal resolution and thus study the changes in hydrometeorological parameters across the Prairie during the two extreme hydrological events of the last decade. -
BREAKDOWN of SUB-REGIONS Americas
BREAKDOWN OF SUB-REGIONS Americas Atlantic Islands and Central and Canada Eastern US Latin America Southwest US Argentina Atlantic Canada Kansas City Boston Atlantic Islands British Columbia Nebraska Hartford Brazil A Canadian Prairies Oklahoma Maine Brazil B Montreal & Quebec Southwest US A New York A Central America Toronto Southwest US B New York B Chile St. Louis Philadelphia Colombia Pittsburgh Mexico Washington DC Peru Western New York Uruguay Midwest US Southeastern US Western US Chicago Florida Colorado Cleveland Greater Tennessee Desert US Indianapolis Louisville Hawaii Iowa Mid-South US Idaho Madison North Carolina Los Angeles Milwaukee Southern Classic New Mexico Minnesota Virginia Northern California Southern Ohio Orange County West Michigan Portland Salt Lake San Diego Seattle Spokane Asia Pacific Oceania Eastern Asia Southeastern Asia Southern Asia Brisbane Beijing Cambodia Bangladesh Melbourne Chengdu Indonesia India A New Zealand Hong Kong Malaysia India B Perth Japan Philippines India C Sydney Korea Singapore Nepal Mongolia Thailand Pakistan Shanghai Vietnam Sri Lanka Shenzhen A Shenzhen B Taiwan Europe, Middle East, and Africa Sub-Saharan Africa Eastern Europe Northern Europe Southern Europe Ethiopia Bulgaria Denmark & Norway Croatia Ghana Czech Republic Finland Cyprus Kenya Hungary Ireland Greece Mauritius Kazakhstan Sweden Israel Nigeria A Poland A Istanbul Nigeria B Poland B Italy Rwanda Romania Portugal South Africa Russia A Serbia Tanzania Russia B Slovenia Uganda Slovakia Spain Zimbabwe Ukraine A Ukraine B Middle East and Western Europe North Africa Austria Bahrain Benelux Doha France Egypt Germany Emirates Switzerland Jordan Kuwait Lebanon Morocco Oman Saudi Arabia . -
Weather and Climate Extremes on the Canadian Prairies: an Assessment with a Focus on Grain Production
Environment and Ecology Research 5(4): 255-268, 2017 http://www.hrpub.org DOI: 10.13189/eer.2017.050402 Weather and Climate Extremes on the Canadian Prairies: An Assessment with a Focus on Grain Production 1,* 2 E. Ray Garnett and Madhav L. Khandekar 1Agro-Climatic Consulting, Canada 2Former Environment Canada Scientist, Expert Reviewer IPCC 2007, Climate Change Documents, Canada Copyright©2017 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract The Canadian prairies are Canada’s granaries, 1 . Introduction producing up to 75 million tons of grain (primarily wheat, barley, and oats) and oilseeds (primarily canola) during the The Canadian prairie provinces have an area of about 2 summer months of June to August. Canada is a major grain million square kilometers, an area greater than Spain and exporting country; exports have a market value of about Portugal combined, and they make up about 20% of the total 30-40 billion US dollars. The Canadian prairie agricultural area of Canada. The prairie provinces are situated in western industry is a major socio-economic activity for western Canada; Canada extends from Victoria (British Columbia) in Canada, employing thousands in farming communities and the west to St John’s (Newfoundland) in the east. The current in other industries such as transportation on a year-round population of the three prairie provinces is now over 6 basis. A good grain harvest in a given year depends critically million, about 1/6th of the total population of Canada, about on various summer weather and climate extremes which can 36.5 million. -
Description of the Ecoregions of the United States
(iii) ~ Agrl~:::~~;~":,c ullur. Description of the ~:::;. Ecoregions of the ==-'Number 1391 United States •• .~ • /..';;\:?;;.. \ United State. (;lAn) Department of Description of the .~ Agriculture Forest Ecoregions of the Service October United States 1980 Compiled by Robert G. Bailey Formerly Regional geographer, Intermountain Region; currently geographer, Rocky Mountain Forest and Range Experiment Station Prepared in cooperation with U.S. Fish and Wildlife Service and originally published as an unnumbered publication by the Intermountain Region, USDA Forest Service, Ogden, Utah In April 1979, the Agency leaders of the Bureau of Land Manage ment, Forest Service, Fish and Wildlife Service, Geological Survey, and Soil Conservation Service endorsed the concept of a national classification system developed by the Resources Evaluation Tech niques Program at the Rocky Mountain Forest and Range Experiment Station, to be used for renewable resources evaluation. The classifica tion system consists of four components (vegetation, soil, landform, and water), a proposed procedure for integrating the components into ecological response units, and a programmed procedure for integrating the ecological response units into ecosystem associations. The classification system described here is the result of literature synthesis and limited field testing and evaluation. It presents one procedure for defining, describing, and displaying ecosystems with respect to geographical distribution. The system and others are undergoing rigorous evaluation to determine the most appropriate procedure for defining and describing ecosystem associations. Bailey, Robert G. 1980. Description of the ecoregions of the United States. U. S. Department of Agriculture, Miscellaneous Publication No. 1391, 77 pp. This publication briefly describes and illustrates the Nation's ecosystem regions as shown in the 1976 map, "Ecoregions of the United States." A copy of this map, described in the Introduction, can be found between the last page and the back cover of this publication. -
A HOME for the DAURIA's RARE CREATURES Securing Steppe
A HOME FOR THE DAURIA’S RARE CREATURES Securing steppe fauna in the Daursky Biosphere Reserve Photo: Vadim Kiriliuk Adon-Chelon, ‘The Herd of Stone Horses’ – a site targeted for Argali Sheep reintroduction Torey Lakes - Russian The Dauria Steppe Ecoregion The transboundary Dauria steppe ecoregion occurs across Mongolia, Russia and China. Within Russia, the Dauria steppe spreads across the Zabaikalsky Province in Russia’s Far East. It is renowned for its high diversity of fauna including the Great Bustard, Daurian Crane, Swan Goose, Mongolian Gazelle, Argali Sheep, Siberian Marmot, and Pallas Cat. The high zoological diversity of the region has been attributed to a number of factors including a large range of habitat types and dispersion corridors, the overlap of several zoogeographic zones, and extreme variations in climatic conditions which triggers widespread migrations in many species. Despite the high biodiversity values of the region, Zabaikalsky Province has the lowest protected areas coverage amongst Russia’s eastern provinces. One of the few protected areas in the region is the exceptional Daursky Biosphere Reserve, situated near the Mongolian and China border, which unites a cluster of reserves including the Tasucheisky Wildlife Refuge. Representing the majority of major landscape types of the Dauria, the 45,790 hectare core area of the Daursky consists of wetlands and rocky hills, while the 163,530 hectare buffer zone contains mostly grassland and pine stands. The reserve also includes the significant rocks of Adon-Chelon (‘The Herd of Stone Horses’ in Buryat language), and a stand of the rare Krylov pine which is uniquely adapted to survive the conditions of the dry steppes. -
Grasslands and Prairies Grassland
Grasslands and Prairies Grassland Dominated by grasses (Poaceae) and grass-like plants (sedges, rushes) 30 – 40 % of world land surface Climate composed of moderate precipitation (10 - 50 inches/yr) and periodic drought Other environmental factors Fire Grazing Major Global Grasslands Temperate Grasslands North America Prairie, Great Plains Grasslands Eurasia Steppe South America Pampas Subtropical to Tropical Grasslands South America Cerrado, Llanos Africa Savanna, Veldt Australia Mitchell Grasslands Prairie From the historic French word for a tree-less meadow or pasture co-dominated by perennial grasses and forbs. Generally used by North American ecologists to describe a tree-less vegetation of grasses, dicotyledonous herbs, and small shrubs. Steppe From the Russian word “степ” for an extensive, flat grassland. Sometimes used by North American ecologists to describe a grassland composed of short statured, perennial grasses or bunch grasses. Temperate Grasslands Cold season alternating with Warm to Hot season 10 – 35 inches of annual precipitation alternating with drought Deep, porous soils (e.g., loess) Subtropical to Tropical Grasslands Cool to Warm seasons alternating with Warm to Hot seasons 20 – 50 inches of annual precipitation alternating with drought Soils vary from deep to thin, porous to clay pampas prairie steppe savannah Adaptations perennial, cespitose habit thin, narrow leaves that grow from the base deep, compact root systems G G G G G G G G G Fire “Grazing” Grazing: feeding primarily on grasses and grass-like plants Browsing: -
Global and Continental Drought in the Second Half of the Twentieth Century: Severity–Area–Duration Analysis and Temporal Variability of Large-Scale Events
1962 JOURNAL OF CLIMATE VOLUME 22 Global and Continental Drought in the Second Half of the Twentieth Century: Severity–Area–Duration Analysis and Temporal Variability of Large-Scale Events J. SHEFFIELD Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey K. M. ANDREADIS Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington E. F. WOOD Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey D. P. LETTENMAIER Department of Civil and Environmental Engineering, University of Washington, Seattle, Washington (Manuscript received 10 July 2008, in final form 15 October 2008) ABSTRACT Using observation-driven simulations of global terrestrial hydrology and a cluster algorithm that searches for spatially connected regions of soil moisture, the authors identified 296 large-scale drought events (greater than 500 000 km2 and longer than 3 months) globally for 1950–2000. The drought events were subjected to a severity–area–duration (SAD) analysis to identify and characterize the most severe events for each continent and globally at various durations and spatial extents. An analysis of the variation of large-scale drought with SSTs revealed connections at interannual and possibly decadal time scales. Three metrics of large-scale drought (global average soil moisture, contiguous area in drought, and number of drought events shorter than 2 years) are shown to covary with ENSO SST anomalies. At longer time scales, the number of 12-month and longer duration droughts follows the smoothed variation in northern Pacific and Atlantic SSTs. Globally, the mid-1950s showed the highest drought activity and the mid-1970s to mid-1980s the lowest activity.