Spatial Analysis of Land Use and Land Cover Changes on the Basis of RS and GIS

2011 ◽  
Vol 90-93 ◽  
pp. 1711-1714
Author(s):  
Ming Yang Yu ◽  
Fei Meng ◽  
Jian Cui
Keyword(s):  
Land Use ◽  
Large Scale ◽  
Land Cover Changes ◽  
Remote Sensing Images ◽  
Temporal And Spatial Variation ◽  
Economic Interests ◽  
The Past ◽  
Rs And Gis ◽  
Temporal And Spatial ◽  
Large Scale Land

The two-period (1990 and 2010) remote sensing images in Longkou City are selected in this article.The temporal and spatial variation of land use in Longkou City is monitored and analyzed by Geo-information Tupu and transfer matrix. Results show that the pattern of the land use change of Longkou City from year 1990 to year 2010 has changed a lot. The relatively stable area accounts for 74.33%, Garden land increases a lot and the increasing area is 14706.53 hm2,accounting for 16.48%. In the past ten years, there is no large-scale land arrangement, so the reason of the change is the economic interests.

scholarly journals Ecosystem services from southern African woodlands and their future under global change

2016 ◽  
Vol 371 (1703) ◽  
pp. 20150312 ◽  
Author(s):  
Casey M. Ryan ◽  
Rose Pritchard ◽  
Iain McNicol ◽  
Matthew Owen ◽  
Janet A. Fisher ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Service Provision ◽  
Large Scale ◽  
Rural Livelihoods ◽  
Short Term ◽  
Rural People ◽  
Land Acquisitions ◽  
Human Use ◽  
Large Scale Land

Miombo and mopane woodlands are the dominant land cover in southern Africa. Ecosystem services from these woodlands support the livelihoods of 100 M rural people and 50 M urban dwellers, and others beyond the region. Provisioning services contribute $9 ± 2 billion yr −1 to rural livelihoods; 76% of energy used in the region is derived from woodlands; and traded woodfuels have an annual value of $780 M. Woodlands support much of the region's agriculture through transfers of nutrients to fields and shifting cultivation. Woodlands store 18–24 PgC carbon, and harbour a unique and diverse flora and fauna that provides spiritual succour and attracts tourists. Longstanding processes that will impact service provision are the expansion of croplands (0.1 M km 2 ; 2000–2014), harvesting of woodfuels (93 M tonnes yr −1 ) and changing access arrangements. Novel, exogenous changes include large-scale land acquisitions (0.07 M km 2 ; 2000–2015), climate change and rising CO 2 . The net ecological response to these changes is poorly constrained, as they act in different directions, and differentially on trees and grasses, leading to uncertainty in future service provision. Land-use change and socio-political dynamics are likely to be dominant forces of change in the short term, but important land-use dynamics remain unquantified. This article is part of the themed issue ‘Tropical grassy biomes: linking ecology, human use and conservation’.

Detrimental environmental impact of large scale land use through deforestation and deterioration of carbon balance in Istanbul Northern Forest Area

2020 ◽  
Vol 79 (11) ◽  
Author(s):  
Ahmet Ozgur Dogru ◽  
Cigdem Goksel ◽  
Ruusa Magano David ◽  
Doganay Tolunay ◽  
Seval Sözen ◽  
...  
Keyword(s):  
Land Use ◽  
Environmental Impact ◽  
Carbon Balance ◽  
Large Scale ◽  
Forest Area ◽  
Northern Forest ◽  
Large Scale Land
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