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Regional Patterns of Ecosystem Services in Cultural Landscapes

Peer-reviewed publication
Juin, 2016

European agricultural landscapes have been shaped by humans to produce marketable private goods such as food, feed, fiber and timber. Land-use intensification to increase provisioning services in such productive landscapes alters the capacity of ecosystems to supply other services (often public goods and services) that are also vital for human wellbeing. However, the interactions, synergies and trade-offs among ecosystem services are poorly understood.

Assessment of Above-Ground Biomass of Borneo Forests through a New Data-Fusion Approach Combining Two Pan-Tropical Biomass Maps

Peer-reviewed publication
Septembre, 2015
Indonésie
Brunéi Darussalam
Malaisie

This study investigates how two existing pan-tropical above-ground biomass (AGB) maps (Saatchi 2011, Baccini 2012) can be combined to derive forest ecosystem specific carbon estimates. Several data-fusion models which combine these AGB maps according to their local correlations with independent datasets such as the spectral bands of SPOT VEGETATION imagery are analyzed. Indeed these spectral bands convey information about vegetation type and structure which can be related to biomass values. Our study area is the island of Borneo.

Restoration of Prairie Hydrology at the Watershed Scale: Two Decades of Progress at Neal Smith National Wildlife Refuge, Iowa

Peer-reviewed publication
Mars, 2014

Tallgrass prairie once occupied 67.6 million hectares in the North American Midwest but less than 0.1% remains today. Consisting of more than 2200 ha, Neal Smith National Wildlife Refuge (NSNWR) was established by the US Fish and Wildlife Service in the 5217 ha Walnut Creek watershed in Jasper County, Iowa. Large tracts of land are being converted from row crop agriculture to native prairie and savanna with the goal to restore the landscape to a semblance of the condition that existed prior to Euro-American settlement.

Understanding Land Use and Land Cover Dynamics from 1976 to 2014 in Yellow River Delta

Peer-reviewed publication
Mars, 2017

Long-term intensive land use/cover changes (LUCCs) of the Yellow River Delta (YRD) have been happening since the 1960s. The land use patterns of the LUCCs are crucial for bio-diversity conservation and/or sustainable development. This study quantified patterns of the LUCCs, explored the systematic transitions, and identified wetland change trajectory for the period 1976–2014 in the YRD. Landsat imageries of 1976, 1984, 1995, 2006, and 2014 were used to derive nine land use classes.

Investigating Impacts of Alternative Crop Market Scenarios on Land Use Change with an Agent-Based Model

Peer-reviewed publication
Décembre, 2015

We developed an agent-based model (ABM) to simulate farmers’ decisions on crop type and fertilizer application in response to commodity and biofuel crop prices. Farm profit maximization constrained by farmers’ profit expectations for land committed to biofuel crop production was used as the decision rule. Empirical parameters characterizing farmers’ profit expectations were derived from an agricultural landowners and operators survey and integrated in the ABM.

Using an Agroecosystem Services Approach to Assess Tillage Methods: A Case Study in the Shikma Region

Peer-reviewed publication
Décembre, 2015

The use of ecosystem services (ES) in agricultural management is expanding; however, its integration in decision making processes is still challenging. This project was formulated to examine the ES approach and its usefulness with regard to management dilemmas. The Shikma region, north of the Negev Desert, was chosen as a case study. The management issue identified was the effect of various alternatives (minimum-tillage, no-tillage, straw-mulch and stubble-grazing) on the supply of ES.

Prediction of Land Use Change in Long Island Sound Watersheds Using Nighttime Light Data

Peer-reviewed publication
Décembre, 2016

The Long Island Sound Watersheds (LISW) are experiencing significant land use/cover change (LUCC), which affects the environment and ecosystems in the watersheds through water pollution, carbon emissions, and loss of wildlife. LUCC modeling is an important approach to understanding what has happened in the landscape and what may change in the future. Moreover, prospective modeling can provide sustainable and efficient decision support for land planning and environmental management.

Land Sector Reforms in Ghana, Kenya and Vietnam: A Comparative Analysis of Their Effectiveness

Peer-reviewed publication
Juin, 2016

The notion that the formal titling and individualization of land rights in developing countries lead to higher investments in land and agricultural productivity holds sway in academic and development circles. In this paper, this notion is analyzed based on a comparative study of land reform programs and their implications for access to land, credit, and agricultural investments in Ghana, Kenya, and Vietnam. It focuses on how different access routes to land influence access to credit, and the transaction costs of land reform programs for agricultural investments.

Analyzing Vegetation Change in an Elephant-Impacted Landscape Using the Moving Standard Deviation Index

Peer-reviewed publication
Mars, 2014
Botswana

Northern Botswana is influenced by various socio-ecological drivers of landscape change. The African elephant (Loxodonta africana) is one of the leading sources of landscape shifts in this region. Developing the ability to assess elephant impacts on savanna vegetation is important to promote effective management strategies. The Moving Standard Deviation Index (MSDI) applies a standard deviation calculation to remote sensing imagery to assess degradation of vegetation.

Evaluating the Potential of the Original Texas Land Survey for Mapping Historical Land and Vegetation Cover

Peer-reviewed publication
Mars, 2016

This paper reports on research to evaluate the potential of Original Texas Land Survey (OTLS) to generate information that can be used to quantitatively map historical vegetation cover and analyse pertinent aspects of vegetation ecology. Research was conducted in Brazos County in east-central Texas. OTLS data are easy to acquire and convert to geo-referenced autecological information.

Building Bridges across Sectors and Scales: Exploring Systemic Solutions towards A Sustainable Management of Land —Experiences from 4th Year Status Conference on Research for Sustainable Land Management

Peer-reviewed publication
Juin, 2015

Interacting land use demands and competing interests originating from fields such as agriculture, housing, mobility and nature conservation call for integrated governance approaches that incorporate disciplinary perspectives and arbitrate between them. The German research program “Sustainable Land Management” targets this challenge and provides an umbrella for a number of regional projects involving transdisciplinary system-oriented approaches to sustainable land use, connecting researchers and practitioners.