Gridded Grazing Intensity Based on Geographically Weighted Random Forest and Its Drivers: A Case Study of Western Qinghai–Tibetan Plateau DOI
Zhihui Yang, Jie Gong, Xia Li

и другие.

Land Degradation and Development, Год журнала: 2024, Номер 35(17), С. 5295 - 5307

Опубликована: Окт. 10, 2024

ABSTRACT Overgrazing affects the grass‐livestock balance and endangers grassland ecological security. Despite extensive studies conducted on identifying quantifying grazing intensity, there is still room for improvement in research gridding particularly areas with limited data Qinghai–Tibet Plateau. Therefore, we proposed a intensity spatialization method using geographically weighted random forest (GWRF) to gain further insights into spatial heterogeneity of alpine intensity. This incorporates multiple remote sensing related human activities natural factors, as well annual livestock statistics at township level over several years, while adequately considering autocorrelation Additionally, employed Lindeman Merenda Gold (LMG), geographical detector model, structural equation model (SEM) assess contribution influence path driving factors We also utilize partial correlation analysis dual‐phase mapping examine impact distribution The results demonstrate that GWRF‐based accurately predicts by demonstrating its consistency township‐scale ( R 2 = 0.92 p < 0.01), RMSE 1.07). provides valuable technical support pastoral availability. evaluate trends observe an increase Gar Purang counties. Furthermore, population density, normalized difference vegetation index (NDVI), temperature are identified three influential affecting areas. other indirectly influencing density NDVI levels, their interactions amplify overall influence. technique has demonstrated significant 45.92% 0.01) study area, emphasizing substantial Our novel framework spatially analyzing unraveling intricated mechanisms behind spatiotemporal changes,

Язык: Английский

Soil water retention in alpine meadows under different degradation stages on the northeastern Qinghai-Tibet Plateau DOI
Licong Dai,

Yiming Yuan,

Xiaowei Guo

и другие.

Journal of Hydrology, Год журнала: 2020, Номер 590, С. 125397 - 125397

Опубликована: Авг. 8, 2020

Язык: Английский

Процитировано

66
The variation in soil water retention of alpine shrub meadow under different degrees of degradation on northeastern Qinghai-Tibetan plateau DOI
Licong Dai, Xiaowei Guo,

Xun Ke

и другие.

Plant and Soil, Год журнала: 2020, Номер 458(1-2), С. 231 - 244

Опубликована: Май 6, 2020

Язык: Английский

Процитировано

58
Fragmentation alters the soil water conservation capacity of hillside alpine meadows on the Qinghai-Tibetan Plateau DOI Creative Commons

Zeng Cui,

Yifan Liu, Yü Liu

и другие.

Geoderma, Год журнала: 2022, Номер 428, С. 116133 - 116133

Опубликована: Сен. 9, 2022

The Qinghai-Tibetan Plateau—known as the roof of world and water tower Asia—is facing serious degradation its ecosystems, with alpine meadows being particularly threatened. However, little is known about how loss mattic epipedon (the characteristic topsoil meadows) alters conservation capacity region. Here we examined effects different coverages on surface runoff, evapotranspiration, soil storage under rainfall conditions. Our results showed that runoff was significantly higher moderate rain conditions (P > 10 mm day−1) than light < day−1), declining coverage increased especially average evapotranspiration at 90 %, 60 30 % were 5.38 mm, 5.88 6.38 non-rainfall conditions, 0.97 1.60 2.24 Meanwhile, had a positive effect supplementation Overall, more effective maintaining improving conservation. These findings highlight importance conserving restoring to improve security in Plateau other downstream regions.

Язык: Английский

Процитировано

32
Moderate grazing promotes the root biomass in Kobresia meadow on the northern Qinghai–Tibet Plateau DOI Creative Commons
Licong Dai, Xiaowei Guo,

Xun Ke

и другие.

Ecology and Evolution, Год журнала: 2019, Номер 9(16), С. 9395 - 9406

Опубликована: Июль 30, 2019

Grazing is an important modulator of both plant productivity and biodiversity in grassland community, yet how to determine a suitable grazing intensity alpine still controversy. Here, we explore the effects different intensities on biomass species composition, at community level functional group level, examines productivity-species richness relationship under four patterns: no (CK), light (LG), moderate grazing, (MG) heavy (HG), attempt grassland. The results were as follows. total aboveground (AGB) reduced with increasing intensity, response groups was different. AGB sedges legumes increased from MG HG, while forbs sharply grass remained steady. There significant positive between level. In contrast, belowground (BGB) showed unimodal CK peaking (8,297.72 ± 621.29 g/m2). Interestingly, tends allocate more root upper soil layer intensities. Our suggesting that levels disturbance may be optimal management strategy for meadow terms production.

Язык: Английский

Процитировано

47
Toward a sustainable grazing management based on biodiversity and ecosystem multifunctionality in drylands DOI
Ruiyang Zhang, Jinsong Wang, Shuli Niu

и другие.

Current Opinion in Environmental Sustainability, Год журнала: 2020, Номер 48, С. 36 - 43

Опубликована: Окт. 10, 2020

Язык: Английский

Процитировано

46
Long-term grazing exclusion greatly improve carbon and nitrogen store in an alpine meadow on the northern Qinghai-Tibet Plateau DOI
Licong Dai,

Ruiyu Fu,

Xiaowei Guo

и другие.

CATENA, Год журнала: 2020, Номер 197, С. 104955 - 104955

Опубликована: Окт. 15, 2020

Язык: Английский

Процитировано

45
Grazing Cattle, Sheep, and Goats Are Important Parts of a Sustainable Agricultural Future DOI Creative Commons
Temple Grandin

Animals, Год журнала: 2022, Номер 12(16), С. 2092 - 2092

Опубликована: Авг. 16, 2022

Many people believe that animal agriculture should be phased out and replaced with vegetarian substitutes. The livestock industry has also been attacked because it uses vast amounts of land. People forget grazing cattle or sheep can raised on land is either too arid rough for raising crops. At least 20% the habitable Earth not suitable Rotational systems used to improve both soil health vegetation diversity Grazing are being successfully graze cover crops prime farmland. Soil improved when a crop rotated conventional cash crops, such as corn soybeans. It reduces need buying fertilizer. animals, cattle, sheep, goats, bison, part sustainable system will land, help sequester carbon, reduce welfare issues.

Язык: Английский

Процитировано

24
Effect of foraging tunnels created by small subterranean mammals on soil microbial biomass carbon and organic carbon storage in alpine grasslands DOI
Yang Huan,

Xiao Pan Pang,

Jie Li

и другие.

CATENA, Год журнала: 2024, Номер 241, С. 108046 - 108046

Опубликована: Апрель 19, 2024

Язык: Английский

Процитировано

5
Shrub encroachment increases soil erosion risk in hillside alpine meadows of the Qinghai-Tibetan Plateau, NW China DOI
Yifan Liu,

Hui Fang,

Ze Huang

и другие.

CATENA, Год журнала: 2022, Номер 222, С. 106842 - 106842

Опубликована: Дек. 5, 2022

Язык: Английский

Процитировано

22
Species richness and dominant functional groups enhance aboveground biomass, with no effect on belowground biomass in Qinghai-Tibet Plateau's grasslands DOI Creative Commons
Lokman Hossain, Jianfeng Li

Ecological Informatics, Год журнала: 2024, Номер 82, С. 102688 - 102688

Опубликована: Июнь 17, 2024

Understanding the role of plant diversity in maintaining grassland ecosystem functioning is great importance ecological research. Despite decades research, ecologists have struggled to understand biodiversity-ecosystem relationships and how dominance functional groups impacts function. In attempting (i) temporal patterns above- below-ground biomass (AGB BGB) species richness, (ii) whether richness consistently associated with AGB BGB, (iii) relative contributions (forb, grass, legume, sedge) stabilizing function, we used productivity data meadow steppe alpine Qinghai-Tibet Plateau (QTP) for period 2015–2019. Our results show that both grasslands increased, but BGB stayed steady over 5 years. The rising tendency was caused by upward trend forbs grasses, which are dominant QTP, stressing functioning. were significantly positive AGB, stable negative BGB:AGB ratio, highlights crucial higher Significant differences mean among sites (9–19 8–22 meadow) highlight varying levels across QTP. While 42% showed reported increasing trends at 58% indicate potential changes or processes these areas. while remained precipitation. top soil layer (0–10 cm) dominated observed grasslands, as abundant nutrients provide favorable conditions root proliferation. steppe, formed an isometric relationship indicating increased BGB. This study concludes influenced functioning, grasses productivity, topsoil contributed three-quarters provides empirical evidence years, greater enhancing These findings serve a scientific reference policymaking regarding stability.

Язык: Английский

Процитировано

4