| 1. | Geographic differentiation of yield - increase efficiency caused by recycled nutrients in agro - ecosystems
农业生态系统养分循环再利用作物产量增益的地理分异 |
| 2. | The relationship of soil nutrient cycling characteristics with productivity of terrace millet on hilly loess plateau
黄土丘陵区梯田谷子养分循环特征与生产力关系的研究 |
| 3. | The red - orange cinnabar mushroom , inedible by humans , plays an important ecological role in degrading dead organic matter in soil and recycling the nutrients
橙红垂幕菌虽然人类不可食用，但胜在能够分解泥土中的有机枯枝落叶，促进养分循环，具有重要的生态功能。 |
| 4. | It provides shelter , food and nursery ground for a variety of marine fauna at the coastal area . it also plays an important role in carbon flow and nutrient recycling in the coastal environment
它为多种生存在海岸的海洋动物提供庇护所、食物和哺育的地方。它也在海岸环境里的碳元素流动和养分循环中扮演重要的角色。 |
| 5. | We suggest that new technologies such as the c and n isotope technique for nutrient cycling and the image analysis approaches for soil micro - structure should be applied on earthworm ecological research in order to better understand the functions of earthworms
其他新技术如研究养分循环的碳氮同位素分析和揭示土壤微结构的图像分析等技术的应用是蚯蚓生态功能研究的迫切需要。 |
| 6. | The studies on the biogeochemistry of carbon and nitrogen , carbon and nitrogen cycle in forest ecosystems , or photosynthates supply for nitrogen assimilation and metabolism of plant indicated that carbon and nitrogen could influence each other
不论探讨碳与氮之生物地质化学，或森林生态系碳与氮养分循环，甚至整株植物产生光合产物供给氮同化与代谢所需，都显示碳与氮彼此能相互影响。 |
| 7. | Abstract : according to the daga of crops yield and soil fertility changes of long term application of fertilizer and nutrients recycling obtained from ecological stations scatrtered in four typical areas under chinese academy of sciences and state minisetry of science and technology , the circulation ratios of organic carbon , phosphorus and nitrogen in the process of feeding - composting in were put forward in the agricultural system of black soi area , the ratios were about 0 . 3 , 0 . 61 and 0 . 49 , respectively
文摘:根据中国科学院和国家科技部分布于四大类型地区的生态站进行的长期施肥及养分循环再利用的作物产量、土壤肥力质量变化研究数据，提出了黑土区农业系统投料中有机碳和磷、氮在饲养? ?堆腐过程中的循环率。 |
| 8. | Based on investigation and analysis of the feed , excreta , soil and waters of surface and underground in the livestock farms in jiangsu province with case region survey and nutrient analysis approaches , the nutrient cycling and management and environmental effect in intensive livestock production were assessed
摘要运用案例区域调查法和养分物质分析法，对江苏牲畜养殖场饲料、牲畜排泄物、土壤、地表及地下水体养分状况进行了调查、分析，对牲畜规模养殖中的养分循环与管理及其环境效应进行了评价。 |
| 9. | Abstract : results of a ten year ' s field experiment indicated that the use of nutrients recycled in the farming systems with appropriate amount of fertilizer applied according to the soil nutrient supplying ability could not only produce high crop yield but also balance the soil nutrient budget so that there were no significant surplus of nutrients ( mainly inorganic nitrogen ) which may emit or leach out of soil into environment
文摘:持续10a的田间试验结果表明，在保持农业系统养分循环再利用的基础上，根据土壤养分供给力设计化肥施用量，可以在实现作物高产的同时，平衡土壤养分收支，从而避免土壤中肥料养分（主要是氮）过剩而进入环境。 |
