+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Productivity in grasslands of the U.S.S.R

Developments in agricultural and managed forest ecology4(24): 374-380
Productivity in grasslands of the U.S.S.R
Productivity is characterized by three indices: the standing crop of the green phytomass, G, the standing crop of living roots, R, and the net primary production, NPP, which is the sum of above-ground, ANP, and below-ground, BNP, production. The mean value of Gmax (maximal standing crop during the season) increases from desert steppes to meadows and decreases again in wet meadows and grassy bogs. The mean value of R rises from desert steppes to true steppes, reduces in dry meadows and increases again in wet meadows and grassy bogs. Hence, the change in the standing crops of G and R under the influence of moisture is not linear. Maximal standing crop of G is observed in meadows while maximal standing crop of R is a characteristic feature of true steppes, wet meadows and grassy bogs. With increases in the degree of moistening in grasslands, the NPP value rises from 1000 to 4400 g.m2.yr-1, the BNP value increases from 690 to 3800 g.m2.yr-1. The relationship between NPP and the degree of moistening is practically linear.

(PDF 0-2 workdays service: $29.90)

Accession: 002468391

Related references

Forage value of the grass of permanent lorrainese grasslands used green ensilaged or as hay and productivity of the grasslands. Bulletin de l'Ecole Nationale Superieure d'Agronomie et des Industries Alimentaires 17(1): 3-29, 1975

Ecological studies of some grasslands at ambikapur part 3 net community productivity and efficiency of the grasslands. Tropical Ecology 18(1): 52-59, 1977

Ecological studies of some grasslands at Ambikapur. III. Net community productivity and efficiency of the grasslands. Tropical ecology: 8 (1) 52-59, 1977

Productivity of grasslands. Ecology of grasslands and bamboolands in the world edited by Makoto Numata in collaboration with-15 scientists: 210, 1979

The productivity of temperate grasslands. Ecosystems of the World 17B Managed grasslands Analytical Studies: 7-17, 1987

Fertilizers and productivity of grasslands. Kormovye Kul' tury (1): 33-34, 1991

Increasing the productivity of grasslands. Sibirskii Vestnik Sel' skokhozyaistvennoi Nauki ( 6): 30-35, 130, 1990

Phenology and productivity of C3 and C4 grasslands in Hawaii. Plos One 9(10): E107396-E107396, 2015

Investigation of secondary productivity in grasslands. Secondary productivity of terrestrial ecosystems (principles and methods). Proceedings of working meeting held in Jablonna 31 Aug.-6 Sept., Warszawa, Krakow : Panstwowe Wydawnictwo Naukowe, 2: 499-518. bibl. 27, 1967

Increasing the productivity of hayfields and grasslands. Povyshenie produktivnosti senokosov i pastbishch: 192, 1975