Climate Change and Dryland Agricultural Ecosystem Management

Therefore it could be realize from decision making, legal, participatory and ecological mechanisms in
macroscopic level. Meanwhile, Agroecosystem management design should adaptat to the local
environment and makes full use of information technology, biotechnology and ecological engineering
technology though carrying out Integrated Nutrient Management, Integrated Soil Management,
Integrated Water Management, and Integrated Pest Management, so as to promote the agroecosystem
health, and to provide scientific basis for making scientific policy-decision and formulating new plans
in agriculture development.
In addition, to promote the dialogue between economists, sociologists and ecologists, and change
economic benefits-centric development model into sustainable development model is the ultimate goal
of this study. Meanwhile, using a case-study to support and stimulate researches of agroecosystem
health and management from theoretical level to practice level is our substantial work. Besides, there
is a need to combine the micro and macro-comprehensive research, so as to promote combining
Remote sensing, Global position systems with Geographic information systems, and make principles
of landscape ecology and other means of macro-technological close coordination with the ground
study, in order to understand changes in agroecosystem structure, their functions and processes.
Keywords : Agroecosystem; Agroecosystem health; Agroecosystem health assessment;
Agroecosystem management
The vegetation community natural restoration process of degraded
woodland in the northern slope of Qilian Mountains, China
Zhao Cheng-Zhang 1,∗, Shi Fu-Xi 1, Dong Xiao-Gang1, Sheng Ya-Ping 1 And Yang Wen-Bin2
1 College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
2 Institute of forestry science, Chinese Academy of Forestry, Beijing, 100091, China
INTRODUCTION
Qilian Mountains of China as the transitional zone between Tibetan Plateau, Inner Mongolia Plateau
and the Loess Plateau, which is the mainly distribution area of the forest and water conservation zone,
but the long-term irrational human activities has led to severe degradation. Rebuilding and restoration
to mountain forest system is a pressing theoretical and reality of propositions. Using long-term
observation methods from 2001 to 2008, we studied the natural restoration process of degraded forest
under artificial rearing in Hanquangou basin, the research content include species composition and
structure, dominant species supersede, functional groups, plant diversity and soil properties. Our
subjects is to realize the natural restored process and direction of degraded forest system under
removing human interference in the arid and semi-arid zone, and expected to provide a scientific basis
for ecological restoration of Qilian Mountains or other regions.
RESULTS
Vegetation community environment gradually optimized when the human interference was eliminated,
∗
Corresponding author, CZ Zhao, Email: zhaocz@nwnu.edu.cn
Financial support was provided by National Natural Science Foundation of China (Grant No.
40971039) and the 11th five-year science and technology plan of China Mountains, (Grant No.
2007BAD46B07).
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