Climate Change and Dryland Agricultural Ecosystem Management

the transpiration water consumption accounted for 57.42% of the rainfall, the inter-tree
evapo-transpiration accounted for 32.2% of the rainfall; in the 21 year old C. korshinskii shrubbery ,
the available storage capacity of soil water was 657.8 mm in 0-800 cm soil and the ecological use of
water was 1031.15 mm , so that the water shortage amounted to as high as 614.55 mm; During the
mid-age stage of C. korshinskii, the shortage of water gradually expanded downward and thick dry
soil layer occurred; after C. korshinskii enters into its old stage, dry soil layer became thickened, most
of its plants became senescent and fell into downfall so that their death rate reached 75.8%, and
permanent dry soil layer formed so that the soil moisture could not easily recover in a short time.
keywords: C. korshinskii, Loess Plateau, soil moisture, transpiration
Embedding dapeng regions as a state multiple ecosystem symbiosis
special zone (SMESZ) in China’s pearl delta ecosystems
Yajie Song 1, 2,* Haibao Yu2, 3,* Hui Zhou4 Youcai Xiong5 Huili Cheng6 Lihua Tian7 Yaling Lu8 Fenmin Li5
1 School of Forestry & Environmental Studies, Yale University, New Haven, Connecticut 06511, USA
2 Yale-Nanjing University of Information Science and Technology (UNIST) Urban Resources and Environment
Initiative, Nanjing 210044, China
3 School of Environmental Science and Engineering, Nanjing University of Information Science and Technology
(UNIST), Nanjing 210044, China
4 School of Economics & Management, Tianjin University, Tianjin 10000, China
5 School of Life Science & Arid Agriculture Laboratory, Lanzhou University, Lanzhou 73000, China
6 Shenzhen Government Investment Project Evaluation Center, Gongjiao Building, Lianhua Road, Shenzhen 518036,
China
7 Shenzhen Green Committee, 3009 Xinzhou Road, Shenzhen 518048, China
8 School of Urban & Resources, Peking University, Peking 10000, China
Abstract: Embedding Dapeng Pinusual as a state multiple ecosystem symbiosis special zone and
experimental region of the critical eastern Pearl Delta in South China will greatly intensify its urban
environmental crisis management (UECM) and regional ecosystem stability and safety (RESS). This
envisioning assumption, which is underlying this region’s symbioses of environmental- friendliness
industries and cleaning energy initiatives, builds a truly ecosystems of social, economic and resource
environments in harmony which is to set up a regional ecosystem of sustainability with local practices
with global significance. This critical assumption adopts the perspectives of ecosystem integration,
of this vital urban regions including Shenzhen, Hong Kong and Huizhou of the eastern Pearl Delta, the
evolution ecology of historical, political and economic aspects., as well as greater concerns and
* Corresponding author, Yajie Song, Email: yajie.song@yale.edu
* Corresponding author, Haibao Yu, Email: haibao.yu@yahoo.com.cn
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