Responses of plant diversity and primary productivity to nutrient addition in a Stipa baicalensis grassland, China
نویسندگان
چکیده
منابع مشابه
Plant nitrogen uptake drives responses of productivity to nitrogen and water addition in a grassland
Increased atmospheric nitrogen (N) deposition and altered precipitation regimes have profound impacts on ecosystem functioning in semiarid grasslands. The interactions between those two factors remain largely unknown. A field experiment with N and water additions was conducted in a semiarid grassland in northern China. We examined the responses of aboveground net primary production (ANPP) and p...
متن کاملPlant diversity effects on grassland productivity are robust to both nutrient enrichment and drought.
Global change drivers are rapidly altering resource availability and biodiversity. While there is consensus that greater biodiversity increases the functioning of ecosystems, the extent to which biodiversity buffers ecosystem productivity in response to changes in resource availability remains unclear. We use data from 16 grassland experiments across North America and Europe that manipulated pl...
متن کاملResponses of plant nutrient resorption to phosphorus addition in freshwater marsh of Northeast China
Anthropogenic activities have increased phosphorus (P) inputs to most aquatic and terrestrial ecosystems. However, the relationship between plant nutrient resorption and P availability is still unclear, and much less is known about the underlying mechanisms. Here, we used a multi-level P addition experiment (0, 1.2, 4.8, and 9.6 g P m(-2) year(-1)) to assess the effect of P enrichment on nutrie...
متن کاملExogenous N addition enhances the responses of gross primary productivity to individual precipitation events in a temperate grassland
Predicted future shifts in the magnitude and frequency (larger but fewer) of precipitation events and enhanced nitrogen (N) deposition may interact to affect grassland productivity, but the effects of N enrichment on the productivity response to individual precipitation events remain unclear. In this study, we quantified the effects of N addition on the response patterns of gross primary produc...
متن کاملStructural Dynamics of Survival and Competition of Clonal Plant Populations in Stipa Baicalensis Community
There are tow hierarchically organized of clonal populations are: genetic individuals (genets) can consist of many physiological individuals (ramets). Each ramet takes up resources from its local environment, but the resource pattern can be reorganized within the clone by transport between ramets. According to obsearvation measurement and surveillance of clones and their ramets of caespitose gr...
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ژورنال
عنوان ژورنال: Journal of Integrative Agriculture
سال: 2015
ISSN: 2095-3119
DOI: 10.1016/s2095-3119(14)61001-7