NDLI: Above and belowground net primary productivity of grassland influenced by supplemental water and nitrogen in Inner Mongolia

Content Provider	Springer Nature Link
Author	Li, Jiangzhou Lin, Shan Taube, Friedhelm Pan, Qingmin Dittert, Klaus
Copyright Year	2010
Abstract	While water availability determines grassland productivity in semiarid regions, nutrient availability is the main limiting factor under wet conditions. An experiment was conducted in 2008 at two sites in Inner Mongolia with histories of heavy grazing (HG) and moderate grazing (MG) to study the interactive effects of water and nitrogen on above- and belowground net primary productivity (ANPP and BNPP), biomass partitioning, and plant species composition. The study comprises two water treatments (no irrigation and irrigated when soil water content was below 70% of the field capacity), and two nitrogen (N) levels (0 and 100 kg N ha$^{−1}$). Mean values of ANPP at the peak biomass time reached 1,028 ± 95 SD g m$^{−2}$ at the HG site and 568 ± 32 SD g m$^{−2}$ at the MG site in irrigated and fertilized treatment. Nitrogen use efficiency (NUE) was significantly higher at irrigated plots compared to rain-fed plots at both HG and MG sites. Water use efficiency (WUEt) based on total water input and ANPP decreased with irrigation at the HG site. Meanwhile, N application significantly increased WUEt, WUEp (based on precipitation), and WUEi (based on irrigation water) at both sites. BNPP was significantly higher at irrigated plots compared to rain-fed plots at both HG and MG sites, and it tended to decrease with N addition. However, the fraction of belowground to total biomass (f $_{BNPP}$ = BNPP/(ANPP+BNPP) decreased with the addition of supplemental resources and exhibited a negative correlation with ANPP. Species diversity remained lower at the HG site compared to the MG site; it decreased with the addition of supplemental resources at the latter site. The annual Salsola collina contributed the most to the total biomass under irrigation. Based on global climate models, more frequent extreme climates are predicted in the future, which can result in changes in resource availabilities. Therefore, our research results have important implications for predicting the production and other properties of grassland ecosystems.
Starting Page	253
Ending Page	264
Page Count	12
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	340
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-10-21
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ANPP BNPP Water/nitrogen use efficiency Biomass allocation Species diversity Grazing history Plant Physiology Plant Sciences Soil Science & Conservation Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Belowground net primary productivity and biomass allocation of a grassland in Inner Mongolia is affected by grazing intensity

Resource manipulation effects on net primary production, biomass allocation and rain-use efficiency of two semiarid grassland sites in Inner Mongolia, China

Multiple mechanisms contributed to the reduced stability of Inner Mongolia grassland ecosystem following nitrogen enrichment

Intermediate grazing intensities by sheep increase soil bacterial diversities in an Inner Mongolian steppe

Belowground carbon allocation and net primary and ecosystem productivities in apple trees (Malus domestica) as affected by soil water availability

Diversity-Carbon Flux Relationships in a Northwest Forest

The pattern between nitrogen mineralization and grazing intensities in an Inner Mongolian typical steppe

Experimentally increased water and nitrogen affect root production and vertical allocation of an old-field grassland

Above- and belowground ecosystem biomass, carbon and nitrogen allocation in recently afforested grassland and adjacent intensively managed grassland

Above and belowground net primary productivity of grassland influenced by supplemental water and nitrogen in Inner Mongolia

Similar Documents

Belowground net primary productivity and biomass allocation of a grassland in Inner Mongolia is affected by grazing intensity

Resource manipulation effects on net primary production, biomass allocation and rain-use efficiency of two semiarid grassland sites in Inner Mongolia, China

Multiple mechanisms contributed to the reduced stability of Inner Mongolia grassland ecosystem following nitrogen enrichment

Intermediate grazing intensities by sheep increase soil bacterial diversities in an Inner Mongolian steppe

Belowground carbon allocation and net primary and ecosystem productivities in apple trees (Malus domestica) as affected by soil water availability

Diversity-Carbon Flux Relationships in a Northwest Forest

The pattern between nitrogen mineralization and grazing intensities in an Inner Mongolian typical steppe

Experimentally increased water and nitrogen affect root production and vertical allocation of an old-field grassland

Above- and belowground ecosystem biomass, carbon and nitrogen allocation in recently afforested grassland and adjacent intensively managed grassland

Above and belowground net primary productivity of grassland influenced by supplemental water and nitrogen in Inner Mongolia