期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Characteristics and Measurements of Ecological Compensation in Ecosystem 被引量:33
1
作者 王让会 张慧芝 《Agricultural Science & Technology》 CAS 2008年第6期10-13,共4页
This research was to introduce the characteristics of and countermeasures for ecological compensation. From the analysis of the current situation of ecological compensation, a series of characteristics of ecological c... This research was to introduce the characteristics of and countermeasures for ecological compensation. From the analysis of the current situation of ecological compensation, a series of characteristics of ecological compensation in resource exploitation and economic development were elaborated. The principles and practical issues are complex in ecological compensation, and the corresponding object, entity, financial system of ecological compensation are the keys to set up compensation mechanism, and studying of ecosystem service function and ecological footprint calculation are important ways to quantitatively assess ecological compensation, and are also important foundations for establishing calculation system of green GDP. Advocating the benefit compensation mechanism of ecological economy and enclosing ecological compensation principle are important ways for establishing the new environmental management pattern and manifesting social justice and the ecological civilization ideas. This research proposed some views of and approaches to ecological compensation mechanism for constructing natural resource development and utilization.The establishment of ecological compensation is an important approach to prevent the imbalance of resource allocation, the system guarantee for sustainable development, and the important basis of saving resources. 展开更多
关键词 Ecological compensation ECOSYSTEM Ecological footprint Resource exploitation Environmental protection
下载PDF
太阳辐射减弱对冬小麦形态和光合特性影响的研究 被引量:2
2
作者 郑有飞 李健 +4 位作者 吴荣军 麦博儒 徐静馨 孙健 吴菲 《作物杂志》 CAS CSCD 北大核心 2012年第4期69-74,共6页
以自然太阳总辐射为对照(CK),设置了CK、T1(60%CK)、T2(40%CK)、T3(20%CK)、T4(15%CK)5个处理组,系统研究了太阳辐射减弱对冬小麦光合作用和形态的影响。结果表明:(1)当太阳辐射减弱至20%时将极显著降低冬小麦的光合速率;(2)株高、叶面... 以自然太阳总辐射为对照(CK),设置了CK、T1(60%CK)、T2(40%CK)、T3(20%CK)、T4(15%CK)5个处理组,系统研究了太阳辐射减弱对冬小麦光合作用和形态的影响。结果表明:(1)当太阳辐射减弱至20%时将极显著降低冬小麦的光合速率;(2)株高、叶面积、叶面积比在各个生育中均明显增加,但茎粗、比叶重降低;(3)太阳辐射减弱处理使Fv/Fm升高、ΦPSⅡ降低、qP下降和NPQ升高,表明辐射减弱下冬小麦未发生光抑制。可见,虽然太阳辐射减弱下冬小麦未发生光抑制,且通过形态改变来增加对光能的捕获,但光能不足仍然使得光合速率持续下降。 展开更多
关键词 冬小麦 太阳辐射 光合特性 形态
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部