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- There are many types of agroforestry system established by local farmers in the mountain regions in Guangxi. 因地制宜地建设各种类型的复合农林业系统是山地可持续利用的有效措施。
- Coexistence gain of populations has been studied for eight years, data from the field experiments of agroforestry system in Lixiahe, Jiangsu Province. 通过在江苏省里下河地区连续8年的试验,发现林农复合系统生产力的提高主要来自资源共享增益和林木生产增益。
- The artificially-promoted natural restoration and man-made restoration on steep slopes and agroforestry system establishment have been included. 阐述人工植被恢复的主要模式,包括陡坡地人工植被恢复、人工促进自然恢复及林农复合经营恢复等;
- Padoch et al. (1987) report that the Brazil nut is being planted in a market-oriented agroforestry system near Iquitos, Peru. (1987)报告说,巴西坚果在秘鲁Iquitos附近被种植在一个市场导向的农林复合系统里。
- In this paper, the relationship between low level jet(LLJ) and inversion layer over agroforestry system of Huang Huai Hai Plain are studied with a turbulence equation set. 根据湍流参数化闭合方法讨论了黄淮海平原农林复合系统上空超低空急流和夜间晴空逆温之间的关系。
- The characteristics of agroforestry systems microclimate are:(1)Component values of heat balance are positive in day time but negative at night. 热量平衡的各分量中,潜热通量占净辐射的比值最大,湍流热通量和土壤热通量均较小。
- For most of the agroforestry systems the net costs are low, especially in the south, the southwest, and the north of China, though their initial investments are high. 大多数农用林生态系统虽然它们的初始成本很高,但由于收益很高,所以净成本是比较低的,特别是在南方区、西南区,在华北也比较低。
- Another option for REDD could be to focus on supporting trees in farmed landscapes that are intermediate between natural forests and intensive agriculture (i.e. agroforestry systems). REDD 的另一个选项是把重点放在支持自然森林和精耕农业区域之间的已耕作土地(即农林系统)上的树木。
- IAMETER DISTRIBUTION DYNAMICS OF STANDS IN AGROFORESTRY SYSTEM 林农复合系统中林分直径分布动态研究
- A Review to Interaction between Tree and Crop in Agroforestry System 国外混农林业系统中林木与农作物的相互关系研究进展
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗?
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- The drainage system has been aged. 排水系统已经老化了。
- They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- He's mute on the subject of social system. 他对社会制度的问题保持沉默。
- He said he used this system in the year dot. 他说他很久以前用过这个系统。