+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The influence of land cover change in the Asian monsoon region on present-day and mid-Holocene climate

The influence of land cover change in the Asian monsoon region on present-day and mid-Holocene climate

Biogeosciences 8.6: 1499-1519

Using the general circulation model ECHAM5/JSBACH, we investigate the biogeophysical effect of large-scale afforestation and deforestation in the Asian monsoon domain on present-day and mid-Holocene climate. We demonstrate that the applied land cover change does not only modify the local climate but also change the climate in North Africa and the Middle East via teleconnections. Deforestation in the Asian monsoon domain enhances the rainfall in North Africa. In parts of the Sahara summer precipitation is more than doubled. In contrast, afforestation strongly decreases summer rainfall in the Middle East and even leads to the cessation of the rainfall-activity in some parts of this region. Regarding the local climate, deforestation results in a reduction of precipitation and a cooler climate as grass mostly has a higher albedo than forests. However, in the core region of the Asian monsoon the decrease in evaporative cooling in the monsoon season overcompensates this signal and results in a net warming. Afforestation has mainly the opposite effect, although the pattern of change is less clear. It leads to more precipitation in most parts of the Asian monsoon domain and a warmer climate except for the southern regions where a stronger evaporation decreases near-surface temperatures in the monsoon season. When prescribing mid-Holocene insolation, the pattern of local precipitation change differs. Afforestation particularly increases monsoon rainfall in the region along the Yellow River which was the settlement area of major prehistoric cultures. In this region, the effect of land cover change on precipitation is half as large as the orbitally-induced precipitation change. Thus, our model results reveal that mid- to late-Holocene land cover change could strongly have contributed to the decreasing Asian monsoon precipitation during the Holocene known from reconstructions.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 037181548

Download citation: RISBibTeXText

DOI: 10.5194/bg-8-1499-2011

Related references

Impact of land-cover change, as a result of land-use, on the present-day climate and on the simulated mid-Holocene climate change. Eos, Transactions, American Geophysical Union 81(48, Suppl, 2000

South Asian monsoon climate change and radiocarbon in the Arabian Sea during Early and Middle Holocene. Paleoceanography 17(4): 15.1-15.12, 2002

Holocene south Asian monsoon climate change potential mechanisms and effects on past civilizations. Eos, Transactions, American Geophysical Union: 7, Suppl., Pages F897. 2002., 2002

Climate change at the 4.2 ka BP termination of the Indus valley civilization and Holocene south Asian monsoon variability. Geophysical Research Letters: , 2003., 2003

Vegetation response to Holocene climate change in monsoon-influenced region of China. Earth-Science Reviews 97.1-4, 2009

On the atmospheric dynamical responses to land-use change in East Asian monsoon region. Climate Dynamics 33(2-3): 409-426, 2009

Influence of volcanic eruptions on the climate of the Asian monsoon region. Geophysical Research Letters 37.22, 2010

On the influence of land cover on early Holocene climate in northern latitudes. Journal of Geophysical Research: Atmospheres 109(D21), 2004

An assessment of the influence of land cover uncertainties on the simulation of global climate in the early Holocene. Climate Dynamics 21(3-4): 243-256, 2003

Holocene land-cover reconstructions for studies on land cover-climate feedbacks. Climate of the Past 6.4: 483-499, 2010

Holocene climate cycles in the northwest margin of an Asian monsoon. Chinese Geographical Science 22.4, 2012

Holocene climate cycles in northwest margin of Asian monsoon. Chinese Geographical Science 22(4): 450-461, 2012

The Holocene Asian monsoon: links to solar changes and North Atlantic climate. Science 308(5723): 854-857, 2005

A possible impact of cooling over the Tibetan Plateau on the mid-Holocene East Asian monsoon climate. Advances in Atmospheric Sciences 23(4): 543-550, 2006

Climate and human-induced land cover change in the recharge area of Xiangshui River, SW China during the Holocene; insights from the presence and absence of the riverine tufa. Congres Geologique International, Resumes 33, 2008