Spatio-temporal analysis of grassland carrying capacity in Mongolian Plateau based on supply-consumption relationship

Dong, Yu; Yan, Haiming; Du, Wenpeng; Hu, Yuanman

doi:10.31497/zrzyxb.20190515

Cited by 11 publications

(12 citation statements)

References 27 publications

(11 reference statements)

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“…The forage supply includes the forage provided by natural grasslands (FSn) and artificial supplemental forage (FSa). The FSn was calculated following the studies of grassland carrying-capacity assessment [10,27], and the first step was to calculate the grassland AGB based on NPP data:…”

Section: Quantifying Forage Supplymentioning

confidence: 99%

“…where FD is the total demand of forage (10 4 t); C i is the livestock number at year end (sheep unit, SU); S is the daily feed per SU (kg), set to 4 kg of fresh grass per day; D is the dry weight ratio to the fresh weight of forage, set to 1:3 [10]; G i is the grazing time of inventory livestock, which was set as 365 d; C s is the number of slaughtered livestock (SU); and G s is the grazing time of the slaughtered livestock, which was set as 180 d [27]; All types of livestock were converted into SU, and the camel, horse, cattle, goat, and sheep values equated to 7, 6, 5, 0.8, and 1 SU, respectively.…”

Section: Quantifying Forage Demandmentioning

confidence: 99%

“…One is from the aspect of the livestock number, employing the ratio of the actual grazing livestock number to the theoretical carrying capacity of grasslands; that is, the grazing pressure index, to measure the overgrazing status of grasslands [26]. The other is from the aspect of the quantity of forage, using the ratio of the actual forage consumption to the total available forage as the indicator [27]. In addition, some studies have taken into account the forage intake of wild herbivores [28] when calculating forage supply-demand relationships.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Forage Supply–Demand Assessment and Influencing Factor Analysis from the Perspective of Socio-Ecological System: A Case Study of Altay Prefecture, China

Yang

Nan

et al. 2023

Land

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The provision and utilization of grassland resources connect grassland ecosystems and pastoral society. Revealing the mechanism behind the forage supply–demand relationship and balancing forage supply and demand is essential in pastoral socio-ecological systems. Taking Altay Prefecture as the case study, this study quantified the dynamics of natural forage supply, artificial supplemental forage, and forage demand. The ratio of forage supply to demand was calculated in the traditional grazing scenario and the grazing prohibition and supplemental feeding scenario. The results showed that during 2001–2018, the forage supplied by natural grasslands fluctuated, with the highest and lowest values in 2013 and 2008, respectively. The artificial supplemental forage increased at a higher rate in 2011–2018 than in 2001–2010. The overall trend of forage demand was upward, at approximately 2.98 × 104 t/a. The ratio of forage supply to demand decreased in the traditional scenario with an average value of 0.4717 and increased in the grazing prohibition and supplemental feeding scenario with an average value of 0.8289. The influencing factors were analyzed from the perspective of the interactions between the socio-ecological system elements, and the forage supply–demand relationships were conceptualized based on the social–ecological system framework. This study concludes that natural grasslands cannot entirely meet the increasing forage demand without artificial supplemental forage. The increasing artificial supplemental forage has promoted a balance between forage supply and demand, indicating an optimized grassland utilization pattern. The factors that affect forage supply–demand relationships are interrelated, and a holistic perspective should be adopted when implementing management measures.

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Section: Quantifying Forage Supplymentioning

confidence: 99%

Section: Quantifying Forage Demandmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Forage Supply–Demand Assessment and Influencing Factor Analysis from the Perspective of Socio-Ecological System: A Case Study of Altay Prefecture, China

Yang

Nan

et al. 2023

Land

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“…The Mongolian Plateau not only is an important ecological barrier in East Asia, but it also plays an important role in the global carbon cycle [ 6 ]. It is one of the three most important regions for animal husbandry in the world, the annual production of various types of livestock in this region amounts to approximately 120 million head, animal husbandry is the main sector of the economy on the Mongolian Plateau, and it maintains the livelihoods of approximately 10 million low-income people [ 7 ]. However, management is frequently not optimal in this vast area of grassland, and grasshopper populations can be sufficiently dense to result in additional habitat degradation [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Spatiotemporal Variation in Habitat Suitability for Oedaleus decorus asiaticus Bei-Bienko on the Mongolian Plateau Using Maxent and Multi-Source Remote Sensing Data

Nie

et al. 2023

Insects

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O. decorus asiaticus is a major grasshopper species that harms the development of agriculture on the Mongolian Plateau. Therefore, it is important to enhance the monitoring of O. decorus asiaticus. In this study, the spatiotemporal variation in the habitat suitability for O. decorus asiaticus on the Mongolian Plateau was assessed using maximum entropy (Maxent) modeling along with multi-source remote sensing data (meteorology, vegetation, soil, and topography). The predictions of the Maxent model were accurate (AUC = 0.910). The key environmental variables affecting the distribution of grasshoppers and their contribution were grass type (51.3%), accumulated precipitation (24.9%), altitude (13.0%), vegetation coverage (6.6%), and land surface temperature (4.2%). Based on the assessment results of suitability by Maxent model, the model threshold settings, and the formula for calculating the inhabitability index, the 2000s, 2010s, and 2020s inhabitable areas were calculated. The results show that the distribution of suitable habitat for O. decorus asiaticus in 2000 was similar to that in 2010. From 2010 to 2020, the suitability of the habitat for O. decorus asiaticus in the central region of the Mongolian Plateau changed from moderate to high. The main factor contributing to this change was accumulated precipitation. Few changes in the areas of the habitat with low suitability were observed across the study period. The results of this study enhance our understanding of the vulnerability of different regions on the Mongolian Plateau to plagues of O. decorus asiaticus and will aid the monitoring of grasshopper plagues in this region.

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“…Environmental threats, such as biodiversity loss, climate disruption, and increasing pollution, have imposed unprecedented pressure on the natural ecosystem; additionally, their negative impacts on the development of human society are increasing. (1)(2)(3)(4)(5)(6)(7)(8) To restore damaged ecosystems and improve their capacities to support the sustainable development of human society, the United Nations launched the UN Decade on Ecosystem Restoration in 2021 with the aim of achieving the global mission of "restoring billions of hectares of ecosystem" and changing the mission "from developing nature to curing nature. "…”

Section: Introductionmentioning

confidence: 99%

Natural Ecological Background of Terrestrial Vegetation in China: Identification Methods and Spatial Differentiation Characteristics

Chen¹,

Zhai²,

Hou³

et al. 2021

Sensors and Materials

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Spatio-temporal analysis of grassland carrying capacity in Mongolian Plateau based on supply-consumption relationship

Cited by 11 publications

References 27 publications

Forage Supply–Demand Assessment and Influencing Factor Analysis from the Perspective of Socio-Ecological System: A Case Study of Altay Prefecture, China

Forage Supply–Demand Assessment and Influencing Factor Analysis from the Perspective of Socio-Ecological System: A Case Study of Altay Prefecture, China

Analysis of Spatiotemporal Variation in Habitat Suitability for Oedaleus decorus asiaticus Bei-Bienko on the Mongolian Plateau Using Maxent and Multi-Source Remote Sensing Data

Natural Ecological Background of Terrestrial Vegetation in China: Identification Methods and Spatial Differentiation Characteristics

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