A case study comparing extensive, low-yielding smallholder maize production with an intensified, high-yielding production system (‘sustainable intensification’) is used to illustrate potential trade-offs between agricultural product carbon footprints (PCFs) and land use (LU). In the comparative analysis the extensive systems had lower PCFs so the conclusion may be that these systems should be e...

in recent years, due to absence of integrated watershed management in most regions, natural resources have witnessed numerous damages with severe floods as one of its consequences which further leads to economic, social and environmental damages. presently, there is no optimal utilization of land in most watersheds hence no optimal model matching with facilities and objectives is used in the wa...

A partial equilibrium model of stochastic crop production is used to analyze the impacts of subsidized crop insurance on the extensive margin of agricultural production. It is shown that land use is unchanged only when an actuarially fair, perfectly separating insurance contract is offered. For actuarially fair, pooling equilibrium contracts, however, land with a minimum quality that is strictl...

This article aims to build a set of exploratory and strong operability evaluation index system, the collection of 3 cities in zhengzhou to use construction land on the basis of economic efficiency index of related data, the selection of the zhengzhou region as the object of empirical study, using data envelopment analysis (DEA) method), and C squared R dual model, with the help of a DEAP Versio...

This paper presents an agent-based model of shifting cultivation that explains patterns of land use and forest structure beyond the extensive margin of agriculture. The anthropological literature is first examined in order to specify key aspects of farming group preferences vis-à-vis food requirements. Two existing theories of shifting cultivation are then addressed to motivate the present form...

The study aimed to determine the impact of sound land use management to the runoff in Kabuntalan, Maguindanao in Tamontaka river basin. This was done through simulation and the comparison of the three land cover scenarios such as 2015 land cover, 2025 projected land cover and desired land use to determine its difference in terms of runoff. Hydrologic Engineering Center-Hydrologic Modeling Syste...

Mountainous rangeland ecosystems have a highly delicate position in ecologic areabecause of severe environmental conditions and having wildlife and livestock. Knowing andrealizing the biotic and abiotic components, which have an interaction with each other in thisecosystem, perform the most important role in to desirable management of it. The systematicmanagement is one of the managing features...

Food security covers aspects at all spatial levels from local to global and from an interdisciplinary and systemic food systems perspective. This book aims to better understand environmental, nutritional, agricultural, demographic, socioeconomic, political, technological, and institutional drivers, costs, and outcomes of current and future food security. Interactions with contextual factors inc...