Impacts and causes of land fragmentation, and lessons learned from land consolidation in South Asia

Niroula, Gajendra S.; Thapa, Gopal B.

doi:10.1016/j.landusepol.2004.10.001

Cited by 323 publications

(214 citation statements)

References 19 publications

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“…Considering topographic fluctuation, land fragmentation will increase the difficulty of land management in Xishuangbanna. Specifically, for agriculture, the fragmented farmlands would lead to low efficiency in crop production and the profit of economic plantations [64]. For forest, more than 2500 km 2 natural forest, which can effectively purify the air and conserve underground water, were converted to rubber and other land use types since 1976.…”

Section: Land Fragmentation and Its Effectmentioning

confidence: 99%

Urban Expansion and Its Impact on the Land Use Pattern in Xishuangbanna since the Reform and Opening up of China

Cao

Liu²,

et al. 2017

Remote Sensing

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Abstract:Since the Chinese government carried out the reform and opening up policy, Xishuangbanna Dai Autonomous Prefecture has experienced rapid urbanization and dramatic land use change. This research aims at analyzing urban expansion in Xishuangbanna and its impact on the land use pattern using combined methods, including radar graph, the gradient-direction method and landscape metrics. Seven land use maps from 1976 to 2015 were generated and analyzed, respectively. The results showed that urban and rubber expanded rapidly, while forest decreased during the last 40 years. The city proper, the county town of Menghai and the county town of Mengla showed the most significant and fastest urban expansion rates. In response to rapid urban expansion, land use types outside urban areas changed dramatically. In Jinghong and Mengla, urban areas were usually surrounded by paddy, shrub, rubber and forest in 1976, while most areas were dominated by rubber by 2015. With the development of Xishuangbanna, landscape diversity increased along urban-rural gradients, but decreased in some key urban areas. Urban expansion slightly reduced the connectivity of forest and increased agglomeration of rubber at the same time. Based on the analyses above, we moved forward to discuss the consequences of urban expansion, rubber plantations and land fragmentation.

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Section: Land Fragmentation and Its Effectmentioning

confidence: 99%

Urban Expansion and Its Impact on the Land Use Pattern in Xishuangbanna since the Reform and Opening up of China

Cao

Liu²,

et al. 2017

Remote Sensing

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“…Land fragmentation prohibits efficient use of large farm equipment (e.g., 10-to 20-m-wide combine harvester heads) [3,4].…”

Section: Basic Conceptsmentioning

confidence: 99%

“…Otherwise, land fragmentation can greatly reduce farming efficiency as suggested by many studies [3,4].…”

Section: Introductionmentioning

confidence: 99%

Collaborative Geodesign and Spatial Optimization for Fragmentation-Free Land Allocation

Xie

Runck

Shekhar

et al. 2017

IJGI

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Demand for agricultural food production is projected to increase dramatically in the coming decades, putting at risk our clean water supply and prospects for sustainable development. Fragmentation-free land allocation (FF-LA) aims to improve returns on ecosystem services by determining both space partitioning of a study area and choice of land-use/land-cover management practice (LMP) for each partition under a budget constraint. In the context of large-scale industrialized food production, fragmentation (e.g., tiny LMP patches) discourages the use of modern farm equipment (e.g., 10-to 20-m-wide combine harvesters) and must be avoided in the allocation. FF-LA is a computationally challenging NP-hard problem. We introduce three frameworks for land allocation planning, namely collaborative geodesign, spatial optimization and a hybrid model of the two, to help stakeholders resolve the dilemma between increasing food production capacity and improving water quality. A detailed case study is carried out at the Seven Mile Creek watershed in the midwestern US. The results show the challenges of generating near-optimal solutions through collaborative geodesign, and the potential benefits of spatial optimization in assisting the decision-making process.

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“…As a result, the structure and functions of ecosystems are gradually affected and beautiful landscapes are losing their biological and cultural richness (Niroula and Thapa 2005;Vitousek et al 1997). These changes have likewise led to heavy losses in humans' living space and damaged the sustainable development of human society.…”

Section: Introductionmentioning

confidence: 99%

Landscape ecological security assessment based on projection pursuit in Pearl River Delta

Gao

Lou³

et al. 2011

Environ Monit Assess

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Regional landscape ecological security is an important issue for ecological security, and has a great influence on national security and social sustainable development. The Pearl River Delta (PRD) in southern China has experienced rapid economic development and intensive human activities in recent years. This study, based on landscape analysis, provides a method to discover the alteration of character among different landscape types and to understand the landscape ecological security status. Based on remotely sensed products of the Landsat 5 TM images in 1990 and the Landsat 7 ETM+ images in 2005, land-

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Impacts and causes of land fragmentation, and lessons learned from land consolidation in South Asia

Cited by 323 publications

References 19 publications

Urban Expansion and Its Impact on the Land Use Pattern in Xishuangbanna since the Reform and Opening up of China

Urban Expansion and Its Impact on the Land Use Pattern in Xishuangbanna since the Reform and Opening up of China

Collaborative Geodesign and Spatial Optimization for Fragmentation-Free Land Allocation

Landscape ecological security assessment based on projection pursuit in Pearl River Delta

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