Local sources of global climate forcing from different categories of land use activities
Summary: The radiative forcing of land use and land cover change activities has recently been computed for a set of forcing agents including long-lived greenhouse gases, short-lived agents (ozone and aerosols), and land surface albedo change. Here we address where the global forcing comes from and what land use activities, such as deforestation or agriculture, contribute the most forcing. We find that changes in forest and crop area can predict the land use radiative forcing in some regions.
The ocean carbon sink – impacts, vulnerabilities, and challenges
C. Heinze, S. Meyer, N. Goris, L. Anderson, R. Steinfeldt, N. Chang, C. Le Quéré, and D. C. E. Bakker Earth Syst. Dynam. Discuss., 5, 1607-1672, 2014 AbstractDiscussion Paper (PDF, 3992 KB)Interactive Discussion (Open, 0 Comments)Manuscript under review for ESD
05 Dec 2014
Optimizing cropland cover for stable food production in Sub-Saharan Africa using simulated yield and Modern Portfolio Theory
Summary: Food security is defined as stable access to food of good nutritional quality. In regions where food security is highly dependent on local production it is thus of importance to produce not only enough calories but also to minimize variation in yield. This trade-off is investigated here using simulated crop yield and by selecting relative distributions of crops. The results show a large potential to either increase food production or to decrease its variance by applying optimized crop selection.
Policy support, economic incentives and the adoption of irrigation technology in China
Summary: The econometric analyses results revealed that policy supports via subsidies and extension services have played an important role inpromoting the adoption of irrigation technology. Strikingly, the present irrigation pricing policy has played significant but contradictory roles in promoting the adoption of different types of irrigation technology. Irrigation pricing showed a positive impact on household-based irrigation technology, and a negative impact on community-based irrigation technology.
Do Himalayan treelines respond to recent climate change? An evaluation of sensitivity indicators
U. Schickhoff, M. Bobrowski, J. Böhner, B. Bürzle, R. P. Chaudhary, L. Gerlitz, H. Heyken, J. Lange, M. Müller, T. Scholten, N. Schwab, and R. Wedegärtner Earth Syst. Dynam. Discuss., 5, 1407-1461, 2014 AbstractDiscussion Paper (PDF, 1481 KB)Interactive Discussion (Open, 2 Comments)Manuscript under review for ESDSpecial Issue
23 Oct 2014
Farmers' perceptions of and adaptation strategies to climate change and their determinants; the case of Punjab province, Pakistan
The relevance of uncertainty in future crop production for mitigation strategy planning
K. Frieler, A. Levermann, J. Elliott, J. Heinke, A. Arneth, M. F. P. Bierkens, P. Ciais, D. B. Clark, D. Deryng, P. Döll, P. Falloon, B. Fekete, C. Folberth, A. D. Friend, C. Gellhorn, S. N. Gosling, I. Haddeland, N. Khabarov, M. Lomas, Y. Masaki, K. Nishina, K. Neumann, T. Oki, R. Pavlick, A. C. Ruane, E. Schmid, C. Schmitz, T. Stacke, E. Stehfest, Q. Tang, D. Wisser, V. Huber, F. Piontek, L. Warszawski, J. Schewe, H. Lotze-Campen, and H. J. Schellnhuber Earth Syst. Dynam. Discuss., 5, 1075-1099, 2014 AbstractDiscussion Paper (PDF, 889 KB)Supplement (2110 KB)Interactive Discussion (Open, 1 Comment)Manuscript under review for ESDSpecial Issue
26 Sep 2014
Decadal regime shift linkage between global marine fish landings and atmospheric planetary wave forcing