Bioenergy and Land Use Change-State of the Art

2015 ◽  
pp. 249-271
Author(s):  
Göoran Berndes ◽  
Serina Ahlgren ◽  
Pål Böorjesson ◽  
Annette L. Cowie
2012 ◽  
Vol 2 (3) ◽  
pp. 282-303 ◽  
Author(s):  
Göran Berndes ◽  
Serina Ahlgren ◽  
Pål Börjesson ◽  
Annette L. Cowie

2020 ◽  
Vol 4 (2) ◽  
pp. 135-148
Author(s):  
Hasan Afrakhteh ◽  
◽  
Mohammad Ali Rahimi pour Sheeikhani nejad ◽  

These issues and the economic instability resulting from the implementation of neoliberal policies have led to the commodification of land and housing, which has attracted capital. One of the main consequences of such a situation is that on the one hand, the destruction of natural resources, land erosion, environmental degradation and the occurrence of devastating floods have been increased, and on the other hand, unjustified class division and transfer of villagers from productive activities to unproductive businesses, such as security guard, villa caretakers and services of travel and transportation companies, have endangered the social and food security of Iran. In this article, land use change has been studied using satellite images of East Guilan (Lahijan, Siahkal, Ashrafieh and Langrood counties) in 1989, 2000 and 2015. The information needed to identify the factors affecting land use change has been collected through visits, purposeful interviews in different parts of the area, and the study of written sources and archives of local offices. These data were analyzed using the "grounded theory" method in the Max Kiuda system. Findings show that land use changes in the region are related to various ecological, social, economic and political factors. Increased population pressure along with technological developments, land use policies, development plans, investments, land speculation and personal exploitation have each had some effect on land use change. State of nature has little dependence on tax revenues due to its natural resource revenues; As a result, it is not accountable.


2019 ◽  
Vol 19 (19) ◽  
pp. 12361-12375 ◽  
Author(s):  
Ana Bastos ◽  
Philippe Ciais ◽  
Frédéric Chevallier ◽  
Christian Rödenbeck ◽  
Ashley P. Ballantyne ◽  
...  

Abstract. Continuous atmospheric CO2 monitoring data indicate an increase in the amplitude of seasonal CO2-cycle exchange (SCANBP) in northern high latitudes. The major drivers of enhanced SCANBP remain unclear and intensely debated, with land-use change, CO2 fertilization and warming being identified as likely contributors. We integrated CO2-flux data from two atmospheric inversions (consistent with atmospheric records) and from 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCANBP of CO2 fluxes for 1980–2015. The LSMs generally reproduce the latitudinal increase in SCANBP trends within the inversions range. Inversions and LSMs attribute SCANBP increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO2 fertilization (positive) and warming (negative) on SCANBP. Our results do not support land-use change as a key contributor to the increase in SCANBP. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCANBP trends, which suggests that SCANBP could help to constrain model turnover times.


2019 ◽  
Author(s):  
Ana Bastos ◽  
Philippe Ciais ◽  
Frédéric Chevallier ◽  
Christian Rödenbeck ◽  
Ashley P. Ballantyne ◽  
...  

Abstract. Continuous atmospheric CO2 monitoring data indicate an increase in seasonal-cycle amplitude (SCA) of CO2 exchange in northern high latitudes. The major drivers of enhanced SCA remain unclear and intensely debated with land-use change, CO2 fertilization and warming identified as likely contributors. We integrated CO2-flux data from two atmospheric inversions (consistent with atmospheric records) and from and 11 state-of-the-art land-surface models (LSMs) to evaluate the relative importance of individual contributors to trends and drivers of the SCA of CO2-fluxes for 1980−2015. The LSMs generally reproduce the latitudinal increase in SCA trends within the inversions range. Inversions and LSMs attribute SCA increase to boreal Asia and Europe due to enhanced vegetation productivity (in LSMs) and point to contrasting effects of CO2 fertilisation (positive) and warming (negative) on SCA. Our results do not support land-use change as a key contributor to the increase in SCA. The sensitivity of simulated microbial respiration to temperature in LSMs explained biases in SCA trends, which suggests SCA could help to constrain model turnover times.


Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.


Author(s):  
H. Lilienthal ◽  
A. Brauer ◽  
K. Betteridge ◽  
E. Schnug

Conversion of native vegetation into farmed grassland in the Lake Taupo catchment commenced in the late 1950s. The lake's iconic value is being threatened by the slow decline in lake water quality that has become apparent since the 1970s. Keywords: satellite remote sensing, nitrate leaching, land use change, livestock farming, land management


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