Secondary productivity

No apparent difference was observed in the biomass , whereas the total abundance and secondary productivity show remarkable temporal differences .

生物量无显著的时间差异，但总丰度的时间差异显著。次级生产力也存在显著的时间差异。

Secondary productivity of macrobenthos in Jiaozhou Bay

胶州湾西部海域大型底栖动物次级生产力初步研究

The biomass and secondary productivity are the basis of the food web in the marine ecosystem .

生物量和生产力是海洋生态系统食物网的基础。

Effect of Different Grazing Intensities on growth of yak and the secondary productivity of sward

不同放牧强度对牦牛生长和草地第二生产力的影响

The effect of 6 grazing intensities on growth of yak and the secondary productivity of sward was studi-ed.

试验研究了6种放牧强度对牦牛生长及草地第二性生产力的影响。

In the estuary and coastal environment , sediment resuspension is an import process , which makes influence on the sediment mass flux , secondary productivity , pollution dispersal and so on .

在河口和海岸区域，泥沙的再悬浮是一种非常重要的物理过程，再悬浮会影响水体中泥沙输运的通量、次级生产力以及污染物扩散等等。

The cocoon is the main form of the secondary productivity of tussah-feeding oak plantation . Its nutrient output level has a greater effect on the internal nutrient cycling in the tree .

同时叶部养分向树体转移能力较强。柞蚕林二级生产力是以收获蚕茧为主要形式，其养分输出水平对系统的养分平衡产生的影响主要表现对树体养分内循环方面。

The sediment characteristics were different among different mangrove communities . And the difference of the environment factors such as the concents of organic matter , sand and slit affected the the secondary productivity of the macrobenthic fauna in the mangrove wetland .

五地红树林区红树植物群落类型的差异造成它们之间沉积物性质的差别，而沉积物中有机质、砂粒、粉粒含量等环境因子的差别影响了大型底栖动物的次级生产力。

It is a general accepted view that the primary productions of saltmarshes could delivered to the adjacent estuary and offshore ecosystem through tide dynamic an biological migration and might become main energy resource maintaining the secondary productivity of the food web in these ecosystems .

盐沼湿地的初级生产力通过潮汐涨退和生物输移运送到河口与近海生态系统，从而可能成为维持这些生态系统食物网中次级生产力的重要的能量基础。

By studying benthic secondary productivity changes in different tidal flats , we can learn not only the effect of the different species and different functional groups in the energy flow , but also learn the character and seasonal changes of benthic secondary productivity in different tidal flats .

研究不同潮间带底栖动物的生产力，不仅可以了解不同物种和不同功能群在能量流动中的地位与作用，也可以了解不同潮间带底栖动物的生产力特征及季节变化。

Furthermore , it showed that secondary zooplankton productivity in Tongan Bay had arisen a little than that in 1995 by historical data , but it restored slower .

与历史资料比较，同安湾浮游动物的次级生产力水平比1995年的有所上升，但恢复得较慢。