Monitoring of land cover changes in Northwest China during the past decade using AVHRR data

2003 ◽  
Author(s):  
Mingguo Ma ◽  
Xuemei Wang ◽  
Frank Veroustraete ◽  
Qinghan Dong
Keyword(s):  
Land Cover ◽  
Northwest China ◽  
Land Cover Changes ◽  
The Past ◽  
Avhrr Data

Increased evapotranspiration from land cover changes intensified water crisis in an arid river basin in northwest China

2019 ◽  
Vol 574 ◽  
pp. 383-397 ◽  
Author(s):  
Yaoliang Chen ◽  
Shusen Wang ◽  
Zhiguo Ren ◽  
Jingfeng Huang ◽  
Xiuzhen Wang ◽  
...  
Keyword(s):  
Land Cover ◽  
River Basin ◽  
Northwest China ◽  
Land Cover Changes ◽  
Water Crisis

scholarly journals Estimating possible bumblebee range shifts in response to climate and land cover changes

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Yukari Suzuki-Ohno ◽  
Jun Yokoyama ◽  
Tohru Nakashizuka ◽  
Masakado Kawata
Keyword(s):  
Land Cover ◽  
Forest Area ◽  
Range Shifts ◽  
Coniferous Forests ◽  
Land Cover Changes ◽  
Secondary Forests ◽  
Adaptation To Climate Change ◽  
Bumblebee Species ◽  
The Past ◽  
Occurrence Data

AbstractWild bee decline has been reported worldwide. Some bumblebee species (Bombus spp.) have declined in Europe and North America, and their ranges have shrunk due to climate and land cover changes. In countries with limited historical and current occurrence data, it is often difficult to investigate bumblebee range shifts. Here we estimated the past/present distributions of six major bumblebee species in Japan with species distribution modeling using current occurrence data and past/present climate and land cover data. The differences identified between estimated past and present distributions indicate possible range shifts. The estimated ranges of B. diversus, B. hypocrita, B. ignitus, B. honshuensis, and B. beaticola shrank over the past 26 years, but that of B. ardens expanded. The lower altitudinal limits of the estimated ranges became higher as temperature increased. When focusing on the effects of land cover change, the estimated range of B. diversus slightly shrank due to an increase in forest area. Such increase in forest area may result from the abandonment of agricultural lands and the extension of the rotation time of planted coniferous forests and secondary forests. Managing old planted coniferous forests and secondary forests will be key to bumblebee conservation for adaptation to climate change.

Land cover changes in tidal salt marshes of the Bahía Blanca estuary (Argentina) during the past 40 years

2013 ◽  
Vol 133 ◽  
pp. 23-31 ◽  
Author(s):  
Paula Pratolongo ◽  
Carla Mazzon ◽  
Georgina Zapperi ◽  
María Julia Piovan ◽  
Mark M. Brinson
Keyword(s):  
Land Cover ◽  
Salt Marshes ◽  
Land Cover Changes ◽  
Bahía Blanca Estuary ◽  
The Past ◽  
Blanca Estuary

scholarly journals Expansion of oil palm and other cash crops causes an increase of the land surface temperature in the Jambi province in Indonesia

2017 ◽  
Vol 14 (20) ◽  
pp. 4619-4635 ◽  
Author(s):  
Clifton R. Sabajo ◽  
Guerric le Maire ◽  
Tania June ◽  
Ana Meijide ◽  
Olivier Roupsard ◽  
...  
Keyword(s):  
Land Cover ◽  
Surface Temperature ◽  
Land Surface Temperature ◽  
Oil Palm ◽  
Land Surface ◽  
Land Cover Changes ◽  
Land Transformation ◽  
Clear Cut ◽  
The Past ◽  
Cash Crops

Abstract. Indonesia is currently one of the regions with the highest transformation rate of land surface worldwide related to the expansion of oil palm plantations and other cash crops replacing forests on large scales. Land cover changes, which modify land surface properties, have a direct effect on the land surface temperature (LST), a key driver for many ecological functions. Despite the large historic land transformation in Indonesia toward oil palm and other cash crops and governmental plans for future expansion, this is the first study so far to quantify the impacts of land transformation on the LST in Indonesia. We analyze LST from the thermal band of a Landsat image and produce a high-resolution surface temperature map (30 m) for the lowlands of the Jambi province in Sumatra (Indonesia), a region which suffered large land transformation towards oil palm and other cash crops over the past decades. The comparison of LST, albedo, normalized differenced vegetation index (NDVI) and evapotranspiration (ET) between seven different land cover types (forest, urban areas, clear-cut land, young and mature oil palm plantations, acacia and rubber plantations) shows that forests have lower surface temperatures than the other land cover types, indicating a local warming effect after forest conversion. LST differences were up to 10.1 ± 2.6 °C (mean ± SD) between forest and clear-cut land. The differences in surface temperatures are explained by an evaporative cooling effect, which offsets the albedo warming effect. Our analysis of the LST trend of the past 16 years based on MODIS data shows that the average daytime surface temperature in the Jambi province increased by 1.05 °C, which followed the trend of observed land cover changes and exceeded the effects of climate warming. This study provides evidence that the expansion of oil palm plantations and other cash crops leads to changes in biophysical variables, warming the land surface and thus enhancing the increase of the air temperature because of climate change.

Sign in / Sign up

Export Citation Format

Share Document