naa a22 4500 510737315 CHVBK 20180411083015.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11284-013-1086-1 doi (NATIONALLICENCE)springer-10.1007/s11284-013-1086-1 The relation of biomass production with leaf traits varied under different land-use and precipitation conditions in an Inner Mongolia steppe [Elektronische Daten] [Yingzhi Gao, Marcus Giese, Holger Brueck, Haijun Yang, Zhijian Li] The analyses of plant leaf traits that strongly influence aboveground net primary production (ANPP) are indispensable for understanding the process of plant biomass formation. However, there are few studies that have attempted to relate patterns of ANPP under contrasting management practices to plant leaf-level traits. To assess how leaf traits affect plant biomass accumulation under different land-use practices, we examined leaf traits and biomass production in three differently managed sites in the Inner Mongolia steppe: a site fenced since 1979 (UG), a winter grazing site (WG), and a heavily grazed site (HG). Low soil water content, leaf area index, and potential growth ability of species at site HG led to low crop growth rate (CGR), net assimilation rate (NAR), and relative growth rate (RGR); resulting in lower ANPP as compared to sites WG and UG. Irrespective of land-use management, prolonged drought significantly decreases ANPP even though it systematically increases mean CGR and RGR. However, leaf N content and leaf weight ratio are the crucial components necessary to determine the RGR at site WG. This suggests that low leaf N and availability of soil N due to haymaking may be responsible for neither over-compensatory nor compensatory growth in this site. The low ANPP in dry years is not due to the low mean CGR and RGR but rather to the short effective growing days (referring to the days the vegetation actually grows), suggesting that production-adjusted grazing regimes may be the most suitable measures for precision land management and avoiding grassland degradation. The Ecological Society of Japan, 2013 Crop growth rate nationallicence Leaf nitrogen content nationallicence Net assimilation rate nationallicence Relative growth rate nationallicence Luxury nitrogen consumption nationallicence ANPP : Aboveground net primary production nationallicence CGR : Crop growth rate nationallicence RGR : Relative growth rate nationallicence LA : Leaf area nationallicence LAI : Leaf area index nationallicence NAR : Net assimilation rate nationallicence LWR : Leaf weight ratio nationallicence SLA : Specific leaf area nationallicence LNC : Leaf nitrogen concentration nationallicence UG : Ungrazed site since 1979 nationallicence WG : Winter grazing site nationallicence HG : Heavily grazed site nationallicence GDD : Growing degree days nationallicence Gao Yingzhi Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut Giese Marcus Institute for Crop Production and Agroecology in the Tropics and Subtropics, Section Crop Water Stress Management, University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany aut Brueck Holger Institute for Crop Production and Agroecology in the Tropics and Subtropics, Section Crop Water Stress Management, University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany aut Yang Haijun Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut Li Zhijian Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut Ecological Research Springer Japan 28/6(2013-11-01), 1029-1043 0912-3814 28:6<1029 2013 28 11284 https://doi.org/10.1007/s11284-013-1086-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11284-013-1086-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gao Yingzhi Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut NATIONALLICENCE 700 1- Giese Marcus Institute for Crop Production and Agroecology in the Tropics and Subtropics, Section Crop Water Stress Management, University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany aut NATIONALLICENCE 700 1- Brueck Holger Institute for Crop Production and Agroecology in the Tropics and Subtropics, Section Crop Water Stress Management, University of Hohenheim, Garbenstr. 13, 70599, Stuttgart, Germany aut NATIONALLICENCE 700 1- Yang Haijun Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut NATIONALLICENCE 700 1- Li Zhijian Key Laboratory of Vegetation Ecology, Northeast Normal University, 130024, Changchun, China aut NATIONALLICENCE 773 0- Ecological Research Springer Japan 28/6(2013-11-01), 1029-1043 0912-3814 28:6<1029 2013 28 11284 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer