降水、氮沉降及放牧对草地生态系统凋落物分解的影响研究进展

doi:10.12160/j.issn.1672-5190.2021.04.016

Abstract

Abstract: Grassland ecosystem plays important roles in construction of ecological civilization, provision of ecosystem service, guarantee of food safety, and maintenance of border stability in China. Global climate change and excessive human disturbance have broken the original balance and stability of grassland ecosystem, and resulted in serious grassland degradation, desertification and salinization. The stability of structure, function and process of grassland ecosystem is fundamental to protect its steadiness. The litter decomposition is an important part in the grass material cycle and is of great significance to maintain the stability of grassland ecosystem. The responses of litter decomposition in grassland ecosystem to precipitation pattern change, increased atmospheric nitrogen deposition and grazing interference have been widely reported. By generalizing the related researches in China and abroad, we found that the results of studies on effects of precipitation, nitrogen deposition and grazing on litter decomposition in grassland ecosystem varied due to the geographical location, climate change and heterogeneity of grassland types, and even the same region had different findings. At present, there is limited information regarding the impacts of interactions of the above mentioned two or three interference factors on litter decomposition process of grassland ecosystem. It is of great significance to assess the effects of climate change and human disturbance on grassland ecosystem litter for the correct understanding of the structure and function of grassland ecosystem, as well as the sustainable utilization and protection of grassland ecosystem.

Key words: precipitation, nitrogen deposition, grazing, grassland ecosystem, litter decomposition

CLC Number:

S812.2

Yeruhan, Sarulaqiqige, WEN Chao, YI Feng-yan, ZHANG Pu-jin, Mulan, SHAN Yu-mei. Research Advances on the Effects of Precipitation, Nitrogen Deposition and Grazing on Litter Decomposition in Grassland Ecosystem[J]. Animal Husbandry and Feed Science, 2021, 42(4): 89-97.

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Research Advances on the Effects of Precipitation, Nitrogen Deposition and Grazing on Litter Decomposition in Grassland Ecosystem

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[5]	CUI Yuan-yuan, BAI Liu, WANG Zi-han, ZHAO Hong-yu, Baoyinhexige, LI Zhi-guo, HAN Guo-dong, WANG Zhong-wu. Effects of Simulated Precipitation and Different Stocking Rates on Carbon Exchange in Desert Steppe Ecosystem [J]. Animal Husbandry and Feed Science, 2021, 42(6): 50-55.
[6]	Wurilaga, LIU Hui-jie, Sarula, Haobayasihuliang, Wuyahan, Temuerbuhe. Effects of Improvement Strategy on Severely Desertified Grassland [J]. Animal Husbandry and Feed Science, 2021, 42(5): 55-60.
[7]	Yumei, LI Chang-qing, WANG Li, GUO Tian-long, WANG Chao, JIN Hai, ZHANG Hai-ying, TIAN Feng. Seasonal Changes and Surplus or Deficiency Analysis of Trace Elements in an Ecosystem of Soil-forage-grazing sheep in Grassland of Siziwang Banner,Inner Mongolia [J]. Animal Husbandry and Feed Science, 2021, 42(4): 74-82.
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[10]	Hajie, LI Zhi-guo, HAN Guo-dong. Study on Sustainable Development of Family Rangelands Based on Livestock Production Optimization Management Model [J]. Animal Husbandry and Feed Science, 2021, 42(1): 83-90.
[11]	WANG Li-mei, WANG De-bao, KANG Lian-he, ZHANG Yuan-yuan, WANG Xiao-dong, LIAN Hai-fei, QIAO Jian-min, WANG Le, Naqin, LIANG Jun-fang. Mutton Quality Analysis of Different Mutton Sheep Breeds Raised under Natural Grazing Conditions [J]. Animal Husbandry and Feed Science, 2020, 41(5): 58-62.
[12]	YANG Yan-yan, ZHAI Xiu, Dalai, GUO Tian-long, TIAN Ying, HE Ting-yi, LI Xiu-nan, LUO Xiao-ping, WANG De-bao. Analysis of the Welfare Situation of Grazing Sheep in Pastoral Areas of Inner Mongolia [J]. Animal Husbandry and Feed Science, 2020, 41(5): 86-90.
[13]	CHANG Hong,Yeruhan,LIU Ya-hong,QIU Xiao,HAO Li-fen,Wunier,Mulan,SUN Hai-lian. Study on Soil Nematode Communities in Plots with Different Grazing Intensities in Stipa breviflora Desert Steppe [J]. Animal Husbandry and Feed Science, 2020, 41(3): 28-34.
[14]	LUO Shuai, GUO Jun, SUN Hai-zhou, LIU Meng-jing. Determination of Chromaticity of Beef and Mutton Originated from Some Areas of Inner Mongolia [J]. Animal Husbandry and Feed Science, 2020, 41(2): 78-86.
[15]	LIU Jia, WEI Zhi-jun, ZHANG Shuang, QUE Guo-ping, LI Ze. Responses of Main Plant Populations and Soil Nutrients in Stipa breviflora Steppe to Seasonally Regulated Grazing [J]. Animal Husbandry and Feed Science, 2020, 41(1): 66-72.