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Land resource

Wen Huang, Hongmei Li, Chuhang Cheng, Chunhua Ren, Ting Chen, Xiao Jiang, Kaimin Cheng, Peng Luo, Chaoqun Hu
Soil salinization erodes the farmlands and poses a serious threat to human life, reuse of the saline-alkali lands as cultivated resources becomes increasingly prominent. Pacific white shrimp (Litopenaeus vannamei) is an important farmed aquatic species for the development and utilization of the saline-alkali areas. However, little is known about the adaptation mechanism of this species in terms of high-pH stress. In the present study, a transcriptome analysis on the gill tissues of L. vannamei in response to high-pH stress (pH 9...
2018: PloS One
Paola Araneda, Walter Sielfeld, Cristián Bonacic, José Tomás Ibarra
Understanding diversity patterns along environmental gradients lies at the heart of community ecology and conservation. Previous studies have found variation in bird diversity and density along "natural" elevational gradients in the Tropical Andes Hotspot. However, there is still a lack of knowledge about how bird communities respond to traditional land-use patterns, in association with other multiple drivers, along elevations. In the present study, we investigated biotic, abiotic and anthropogenic sources of variation associated with bird species diversity, density and turnover along a 3000-m elevational gradient, in southern limit of the Tropical Andes Hotspot, northern Chile...
2018: PloS One
Anthony J Bebbington, Denise Humphreys Bebbington, Laura Aileen Sauls, John Rogan, Sumali Agrawal, César Gamboa, Aviva Imhof, Kimberly Johnson, Herman Rosa, Antoinette Royo, Tessa Toumbourou, Ricardo Verdum
Mineral and hydrocarbon extraction and infrastructure are increasingly significant drivers of forest loss, greenhouse gas emissions, and threats to the rights of forest communities in forested areas of Amazonia, Indonesia, and Mesoamerica. Projected investments in these sectors suggest that future threats to forests and rights are substantial, particularly because resource extraction and infrastructure reinforce each other and enable population movements and agricultural expansion further into the forest. In each region, governments have made framework policy commitments to national and cross-border infrastructure integration, increased energy production, and growth strategies based on further exploitation of natural resources...
December 3, 2018: Proceedings of the National Academy of Sciences of the United States of America
Yibo Zhang, Kun Shi, Yunlin Zhang, Max J Moreno-Madriñán, Guangwei Zhu, Yongqiang Zhou, Xiaolong Yao
The valley reservoirs service as a critical resource for society by providing drinking water, power generation, recreation, and maintaining biodiversity. Management and assessment of the water environment in valley reservoirs are urgent due to the recent eutrophication and water quality deterioration. As an essential component of the water body, total suspended matter (TSM) hinder the light availability to underwater and then affect the photosynthesis of aquatic ecosystem. We used long-term HJ-1A/B dataset to track TSM variation and elucidating the driving mechanism of valley reservoirs...
November 30, 2018: Environmental Science and Pollution Research International
Heng-Ling Meng, Wei Zhang, Guang-Hui Zhang, Jian-Jun Wang, Zhen-Gui Meng, Guang-Qiang Long, Sheng-Chao Yang
Marsdenia tenacissima is a well-known anti-cancer medicinal plant used in traditional Chinese medicine, which often grows on the karst landform and the water conservation capacity of land is very poorly and drought occurrences frequently. We found M. tenacissima has strong drought resistance because of continuousdrought16 d, the leaves of M. tenacissima were fully curly and dying. But the leaves were fully almost recovering after re-watering 24h. The activity of SOD and POD were almost doubled under drought stress...
2018: PloS One
Syed Tauseef Hassan, Enjun Xia, Noor Hashim Khan, Sayed Mohsin Ali Shah
The ecological footprint, a measure of human demand on earth's ecosystems, represents the amount of biologically productive land and sea area that is necessary to supply the resources a human population consumes and to mitigate associated waste. This study estimates the impact of economic growth and natural resources on Pakistan's ecological footprint using an autoregressive distributive lag (ARDL) model for long-run estimation. The empirical findings indicate that natural resources have a positive effect on an ecological footprint that deteriorates environmental quality and that natural resources help to support the environmental Kuznets hypothesis (EKC)...
November 29, 2018: Environmental Science and Pollution Research International
Tim Theissen, Joachim Aurbacher, David Bedoshvili, Peter Felix-Henningsen, Thomas Hanauer, Sarah Hüller, Besik Kalandadze, Ingrid-Ute Leonhäuser, Anja Magiera, Annette Otte, Rati Shavgulidze, Giorgi Tedoradze, Rainer Waldhardt
Mountain regions cover one quarter of the Earth's terrestrial surface, and are both valuable and vulnerable areas with complex human-environmental interrelationships. In this coupled system, land-use changes induced by political or socio-economic transformations generate consequences for ecological landscape functions like soil productivity and species richness, and integrative land-use concepts provide the potential of a sustainable land development. In the Kazbegi region in the central Greater Caucasus of Georgia, these transformations further lead to landscape-structure change and population marginalization...
November 26, 2018: Journal of Environmental Management
César Méndez, Amalia Nuevo Delaunay, Roxana Seguel, Antonio Maldonado, Ismael Murillo, Douglas Jackson, Eugenio Aspillaga, Roberto Izaurieta, Víctor Méndez, Macarena Fernández
The procurement of high-quality lithic resources is amongst the most indicative processes of decision-making in the archaeology of early human groups peopling the Americas. Directly dated deposits from quarry workshops have been absent of the late Pleistocene record of South America. We present the results of the excavations of a high-quality translucent quartz crystal workshop that yielded radiocarbon-dated coherently layered stratigraphic deposits that shed light into the behavior of the initial stages of lithic procurement...
2018: PloS One
Pushpendra Koli, Nitish Rattan Bhardwaj
The Indian livestock population is huge. Most (99%) of the livestock owners still follow traditional animal husbandry practices and graze their livestock, especially small ruminants, on natural pastures where no pesticides are used. In order to feed the ever-increasing livestock population, efforts are being made to increase quality fodder productivity from limited land resources. In such situations, pesticides play an important role by minimizing the loss of green fodder due to disease and pest attack. In countries such as Canada, Israel, the UK, and other European countries, pesticides have been registered for forage crops; in India, however, although pesticides have been registered for cultivable grain, horticultural and cash crops, etc...
November 20, 2018: Journal of Pesticide Science
Lijing Tang, Dongyan Wang
Land resources provide stable support for economic development in China. However, due to the scarcity of land, the contradiction between agricultural land protection and construction land expansion is prominent. Under such circumstances, optimal allocation of land resources between agricultural and nonagricultural uses is vitally important. In view of the fact that land resources are indispensable inputs for production activities in agricultural and nonagricultural sectors, reducing the efficiency loss of land resource allocation between agricultural and nonagricultural uses is the only way to optimize the process...
November 25, 2018: International Journal of Environmental Research and Public Health
John J Ewel, Laura A Schreeg, Thomas R Sinclair
An acute imbalance between human population and food production is projected, partially due to increasing resource scarcity; dietary shifts and the current course of technology alone will not soon solve the problem. Natural ecosystems, typically characterized by high species richness and perennial growth habit, have solved many of the resource-acquisition problems faced by crops, making nature a likely source of insights for potential application in commercial agriculture. Further research on undomesticated plants and natural ecosystems, and the adaptations that enable them to meet their needs for N, P, and water, could change the face of commercial food production, including on marginal lands...
November 21, 2018: Trends in Plant Science
Andrea Momblanch, Lamprini Papadimitriou, Sanjay K Jain, Anil Kulkarni, Chandra S P Ojha, Adebayo J Adeloye, Ian P Holman
Holistic water management approaches are essential under future climate and socio-economic changes, especially while trying to achieve inter-disciplinary societal goals such as the Sustainable Development Goals (SDGs) of clean water, hunger eradication, clean energy and life on land. Assessing water resources within a water-food-energy-environment nexus approach enables the relationships between water-related sectors to be untangled while incorporating impacts of societal changes. We use a systems modelling approach to explore global change impacts on the nexus in the mid-21st century in a complex western Himalayan water resource system in India, considering a range of climate change and alternative socio-economic development scenarios...
November 8, 2018: Science of the Total Environment
Marcelo Moreira de Carvalho, Mônica Rocha de Oliveira, Priscila Fabiana Macedo Lopes, Jorge Eduardo Lins Oliveira
BACKGROUND: Accessing folk knowledge from small-scale fishers is an affordable and reliable approach to understand the dynamic and diversity of shark species worldwide, especially of those eventually caught. In this context, ethnotaxonomy (folk identification and classification) may represent an alternative to support sharks fisheries management, especially in data-poor places. This study aimed to investigate fishing and ethnotaxonomy of the main shark species caught by small-scale fisheries from the coastal waters of the Brazilian Northeast...
November 21, 2018: Journal of Ethnobiology and Ethnomedicine
Bassel Daher, Bryce Hannibal, Kent E Portney, Rabi H Mohtar
The San Antonio Region is home to a rapidly growing population with developing energy and agricultural sectors competing for water, land, and financial resources. Despite the tight interconnectedness between water, energy, and food challenges, little is known about the levels of communication and coordination among the various officials responsible for making the decisions that affect the management and planning of the three resource systems. It has been postulated that efficient communication is a prerequisite to developing resource allocation strategies that avoid potential unintended negative consequences that could result from inefficient allocation of natural resources and competing demands...
February 15, 2019: Science of the Total Environment
Francisco E Fontúrbel, Michael W Bruford, Daniela A Salazar, Jorge Cortés-Miranda, Caren Vega-Retter
Land use change is one of the most important anthropogenic drivers of biodiversity loss. Nevertheless, the ecological and evolutionary consequences of habitat transformation remain less understood than those from habitat fragmentation. Transformed habitats are structurally simpler, altering species composition and their ecological interactions, potentially compromising gene flow and genetic diversity. We focused on a tripartite mutualistic system composed of a mistletoe (Tristerix corymbosus), its pollinator (Sephanoides sephaniodes) and its seed disperser (Dromiciops gliroides) to assess changes in their ecological and evolutionary dynamics as a result of habitat transformation...
February 15, 2019: Science of the Total Environment
Giorgia Faraca, Davide Tonini, Thomas F Astrup
Cascading utilisation of post-consumer wood waste has recently gained increasing attention in the European Union, aiming for a society in which the resource's properties are optimized through sequential uses. To date, material utilisation of wood waste has been limited to particleboard production, with additional niche alternatives being restricted by quality requirements for wood waste. In this consequential life cycle assessment focusing on post-consumer wood collected at Danish recycling centres, Global Warming Potential (GWP) impacts from quality-driven choices for cascading management of wood waste were compared with those from handling mixed wood waste qualities...
February 15, 2019: Science of the Total Environment
Jun Huang
Soil erosion is a major global environmental problem. Therefore, a method of calculating potential soil erosion is necessary for soil and water resource management, as well as for assessing the risk of soil erosion. This study aimed to develop a simple method for calculating potential soil erosion change (PSEC) by combining the Universal Soil Loss Equation (USLE) and a Geographic Information System (GIS). The USLE model includes a rainfall erosivity factor (R), soil erodibility factor (K), cover management factor (C), slope gradient factor (S), length factor (L), and the supporting practice factor (P)...
November 20, 2018: Environmental Monitoring and Assessment
Thomas M Bach, Christian A Kull, Haripriya Rangan
The Australian Government's funding of land management by Aboriginal communities aims to enable them to manage natural and cultural resources according to their values and aspirations. But this approach is countered in the case of weed management, where the emphasis is on killing plants that are identified on invasive alien species lists prepared by government agencies. Based on field research with Bardi-Jawi, Bunuba, Ngurrara, Nyikina Mangala and Wunggurr land managers in the Kimberley region of Western Australia, we observed that 27 of 35 weed control projects followed the government agency weed lists for species-led control...
January 1, 2019: Journal of Environmental Management
S Pooransingh, R Parasram, N Nandram, B Bhagwandeen, I Dialsingh
OBJECTIVE: Mosquito-borne diseases continue to pose a threat to Latin America and the Caribbean. Zika virus disease entered the Caribbean in 2013 with increased reporting of cases across the region in 2016, affecting more than 50 countries. This study aimed to ascertain the knowledge of, attitudes and practices towards Zika virus disease among antenatal clinic attenders in Trinidad and Tobago during the 2016 outbreak. STUDY DESIGN: A cross-sectional questionnaire survey was undertaken...
November 15, 2018: Public Health
Wengang Zuo, Chuanhui Gu, Wenjie Zhang, Kaida Xu, Yao Wang, Yanchao Bai, Yuhua Shan, Qigen Dai
Growing bioenergy crop on marginal lands has the potential to minimize land use conflicts and meet global energy demand. The newly reclaimed mudflats through sewage sludge amendment can be used as a potential marginal land for bioenergy production. This paper was one of first studies to investigate the persistent impact of sewage sludge application at the rates of 0, 25, 50, 125, and 250 t ha-1 on selected soil physicochemical properties, yields and quality of sweet sorghum (Sorghum bicolor L.) cultivated in newly reclaimed mudflat saline-alkaline soil...
November 10, 2018: Science of the Total Environment
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