Biomass and net primary productivity of above-ground parts of artificial Hippophae rhamnoides L. stand in Ansai;
安塞人工沙棘林地上部生物量和净初级生产量
The QZNPP model established here shows that, as temperature rises by degrees, net primary productivity (NPP) increases in the way of “S” curve; the rate of increasing is quickened by more precipitation.
青藏高原自然植被净初级生产量最小值为０，最大值为２０ｔ／ｈｍ２·ａ，全区平均为６。
Annual cycle of phytoplankton biomass and primary production in the Bohai Sea simulated by a three-dimensional ecosystem model;
渤海浮游植物生物量与初级生产力变化的三维模拟
The net primary productions of periphyton and macrophyte were 0.
浮游植物、大型水生植物和附生藻类在净初级生产力中的比例分别为93%、6%和1%。
The primary production of Artemisia scoparia community is studied, the tesult indicates that the seasonal dynamics of primary production was evident, the aboveground primary production in May, June, July, August, September are 12.
研究了扫帚艾群落初级生产。
Study on Net Primary Production Variations in the Central Part of Inner-Mongolia during 1981-2000
1981—2000年内蒙古中部地区植被净初级生产量变化研究
Influence of Different Stocking Rates on Underground Biomass and Net Primary Productivity on Stipa krylovii Steppe in Inner Mongolia
不同放牧率对内蒙古克氏针茅草原地下生物量及地上净初级生产量的影响
Control the total output of mineral primary products.
控制矿产品等初级加工产品生产总量。
Primary productivity and the standing stock of photo-plankton in the Bering Sea during the summer of 2003
白令海光合浮游生物现存量和初级生产力
Involve in first level maintenance, assure stable qualified product, improve productivity and minimize production line down time.
提高生产效率，稳定产品质量和参与初级维护，降低生产线停产时间。
Primary productivity and energy conversion efficiency in eel pond
养鳗池塘的初级生产力和能量转换效率
When the secondary circuit is open, the core flux is produced by the primary current only.
当次级电路开路时，铁芯磁通量仅仅由初级电流产生。
elementary agricultural producers' cooperation
初级农业生产合作社
Biomass and Net Primary Productivity in Different Successional Stages of Karst Vegetation in Maolan, Guizhou Province, SW China
贵州茂兰喀斯特植被不同演替阶段的生物量与净初级生产力
Human Appropriation of Net Primary Production: An Approach for Ecological Assessment of Regional Sustainable Development;
净初级生产力的人类占用:一种衡量区域可持续发展的新方法
Some animals may consume insignificant amounts of the primary production.
有些动物可以消耗很微量的初级产物。
Studies on Net Primary Productivity of Forest Ecosystem
森林生态系统净初级生产力模拟研究
Simulating Net Primary Production of Agricultureal Vegetation in China;
中国农业植被净初级生产力模拟研究
The Advanced Productive Forces,the Advanced Party and the National Situation at the Primary Stage;
先进生产力、先进政党与初级阶段国情
Remotely sensed estimation models of ocean primary production
海洋初级生产力的卫星遥感估算模型
On the Causes of Corruption at the Sociatist Primary Stage and Countermeasures;
社会主义初级阶段腐败产生的原因及对策初探
Primary production of the Nanhu Lake aquatic ecosystem in Changchun(Ⅰ)-- phytoplankton
长春南湖水生生态系统的初级生产(Ⅰ)——浮游植物
Studies of Ecological Characteristics of Food Zooplankton and Estimation of Secondary Production in Sansha Bay and Xinghua Bay, Fujian Province
福建三沙湾、兴化湾饵料浮游动物主要生态特征及次级产量的初步估算