1) material cycle
物质循环
1.
Review of studies on the classification,application and material cycle of plants in genus Carex;
苔草植物分类、利用及物质循环研究进展
2.
In this paper, after accumulating the older generations experience and sorting out a wealth of material, the author analized the basic principles of material cycle in ecological system of forest, and investigated the nutrient utilizing in forestry management.
本文在积累前人经验和整理大量资料的基础上,分析了森林生态系统物质循环的基本原理,探讨林业经营管理活动中养分利用的问题,同时提出有关的建议。
3.
Research on the energy conversion and material cycle in agro-ecosystem was carried out in zhangbei experimental area in the years of 1986￣1988.
从１９８６年～１９８８年，在张北试区进行了农业生态系统能量转化和物质循环研究。
3) Material cycling
物质循环
1.
The material cycling in pedosphere is an important portion on the research of the material cycling in global changes.
土壤圈的物质循环是全球变化中物质循环的重要内容，因此，研究土壤圈及其物质循环的结构与功能，对全球变化，特别对全球土壤变化有密切关系。
4) matter circulation
物质循环
1.
Inquiry on matter circulation and energy circulation in a food chain in Heidong Cave of Guizhou Province;
贵州黑洞内一个食物链层次上的物质循环和能量流通探讨
2.
The traditional core theory of ecology is “matter circulation” and “ecology b alance”,which cultivates the concept that the limited physical resources can be exploited limitlessly through matter circulation,setting the foundation for the theory of constant stability of ecology.
传统生态学的核心理论是“物质循环”和“生态平衡”。
3.
the essay analyzes characteristics of matter circulation of agricultural eco-economysystem in high cold and semi-arid area of Bashang by taking yejia village for an instance.
以叶家村为例,分析了坝上高寒半干旱区农业生态经济系统物质循环特征,提出了该区农业经济可持续发展的一系列对策。
6) nutrient cycle
物质循环
1.
Study on nutrient cycle of rubber-tea-chicken agro forestry system in tropical area of China;
我国热带地区胶—茶—鸡农林复合系统物质循环研究
2.
The relationship between dissolved oxygen and nutrient cycle in low-wetland fishponds of the Huanghe-Huaihe-Haihe plain was studied.
对黄淮海平原低洼盐碱地鱼塘中溶解氧与物质循环之间的关系进行了初步研究。
补充资料：物质循环
见生态系统。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条