In the grassland ecosystem, which factor is very important for the survival of herbivores? A. The number of carnivores B. The quality of soil C. The amount of sunlight D. The type of grass 相关知识点: 试题来源: 解析 D。解析:在草原生态系统中,对于食草动物的生存来说,草的种类很重要,不...
Plants in a grassland ecosystem can ___. A. provide shelter B. destroy shelter C. use shelter D. waste shelter 相关知识点: 试题来源: 解析 A。草原生态系统中的植物可以为动物提供庇护所,选项 A 正确。选项 B,植物不会破坏庇护所;选项 C,植物不是使用庇护所;选项 D,植物不会浪费庇护所。反馈...
The Rio de la Plata grassland region is dominated by temperate grasslands, with the scarce natural forests, influenced floristically by adjacent biogeographical provinces. Uruguay represents the southern limit for many tree species of the Paranaense Province, several of which inhabit the hillside forests...
Which of the following animals is a primary consumer in a grassland ecosystem? A. Lion B. Grasshopper C. Eagle 相关知识点: 试题来源: 解析 B。解析:在草原生态系统中,初级消费者是以植物为食的生物。草蜢以草等植物为食,属于初级消费者;狮子是肉食性动物,属于高级消费者;鹰也是肉食性动物,不属于初级...
Ecosystem water use efficiency (EWUE) is defined as the net carbon uptake per amount of water lost from the ecosystem and is a useful measure of the functionality in semiarid shrub and grassland communities. C4 grasses have higher water use efficiency (WUE) than do C3 shrubs, although it ...
Therefore,for the grassland in Zhenglan Banner,the trade- off problem of livestock supply and sand fixation exists,which is also the key problem for the regional economic and social development. To balance the service functions of the grassland ecosystem,maximizing the value of the grassland ...
No.Priority areaProvinceJustificationEcosystemConservation status 1 Altai Mts Xinjiang Vulnerable, unique Forest, wetland Provincial-level nature reserve 2 Tarbagatai Mts Xinjiang Vulnerable Forest, grassland Unprotected 3 Borohoro Mts Xinjiang Vulnerable, unique Forest, grassland Provincial-level nature reserve...
This is run through the town government’s service centre, which will be included in an Ecological Resources Map and the eco-bank can only be used when it conforms to the control requirements of city and town planning. The Eco-Bank of Nanping City is not a financial institution, but a ...
Avoiding catastrophic climate change requires rapid decarbonization and improved ecosystem stewardship. To achieve the latter, ecosystems should be prioritized by responsiveness to direct, localized action and the magnitude and recoverability of their carbon stores. Here, we show that a range of ecosystems...
净生态系统碳交换量(Net Ecosystem Carbon Exchange,NEE)是目前量化生态系统固碳能力的一个重要指标,反应生态系统中总呼吸作用和总生态系统生产力之间的动态平衡,当NEE为正值时反应该生态系统为净二氧化碳释放,为碳源,当NEE为负值时反应该生态系统为净二氧化碳吸收,为碳汇[3]。 目前,对生态系统进行NEE建模的方法可以分...