Climate Change and Dryland Agricultural Ecosystem Management
Climate Change and Dryland Agricultural Ecosystem Management
Climate Change and Dryland Agricultural Ecosystem Management
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Study on the comprehensive factors of ecosystem <strong>and</strong> its assessment<br />
in regional development<br />
Xun Shou-kui*<br />
Anhui University of Science <strong>and</strong> Technology, Huainan, anhui,232001<br />
Abstract: The traditional views of ecosystem often mainly assess <strong>and</strong> research some factors of the<br />
processes in some regional economic <strong>and</strong> social development from the perspective of the natural<br />
environment <strong>and</strong> resource. In fact, some important factors of regional development include not only<br />
natural aspects, but also economic <strong>and</strong> social aspects. Among them, the natural factors include water<br />
resources, l<strong>and</strong> resources, mineral resources <strong>and</strong> natural conditions such as atmospheric environment<br />
<strong>and</strong> its impact, economic <strong>and</strong> social factors include the rationalization <strong>and</strong> impact of urban areas <strong>and</strong><br />
rural layout, the status <strong>and</strong> impact of industrial development, the conditions <strong>and</strong> impact of traffic, the<br />
situation <strong>and</strong> impact of human resource, the situation <strong>and</strong> impact of the legal system, the situation <strong>and</strong><br />
impact of the historical <strong>and</strong> cultural environment. Therefore, the study of system environmental in<br />
regional development must adhere to two points. First, the regional ecosystem should include not only<br />
natural systems should also include economic <strong>and</strong> social systems. Second, the assessment <strong>and</strong><br />
management of ecosystem in regional development should moderate two systems, rather than in<br />
isolation system.<br />
Keywords: Regional development, ecosystem, comprehensive factors, assessment<br />
Research progresses in nitrous oxide emission from agricultural soil<br />
Xiao Wanli, Xue Yanbin∗<br />
The Vegetable <strong>and</strong> Flower Department , Weifang University of Science & Technology,Shouguang 262700, China<br />
Abstract: Nitrous oxide is one of the most important greenhouse gases, it can deplete the<br />
stratospheric ozone. Nitrous oxide in atmosphere has been increasing continuously due to human<br />
activity <strong>and</strong> it will influence the environment severely, so study on the emission of nitrous oxide is<br />
more <strong>and</strong> more important. <strong>Agricultural</strong> soil is the main source of the nitrous oxide. In this paper, the<br />
author give an overview on the mechanism <strong>and</strong> the key influencing factors of production <strong>and</strong> emission<br />
of nitrous oxide, The modeling simulation of the N2O emission are also studied. All the overviews are<br />
expected to give theories to the N2O researchers in the future.<br />
Keywords: N2O; <strong>Agricultural</strong> Soil; influencing factors<br />
* Corresponding author: Xun Shou-kui<br />
∗<br />
Corresponding Author: XUE Yanbin, Email: yan bin_xue@yahoo.com.cn<br />
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