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Baocheng Jin
College of Animal Science, Guizhou University, Guiyang 550025, China

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Journal article
Published: 23 March 2021 in Sustainability
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Quantitatively estimating the grazing intensity (GI) effects on vegetation in semiarid hilly grassland of the Loess Plateau can help to develop safe utilization levels for natural grasslands, which is a necessity of maintaining livestock production and sustainable development of grasslands. Normalized difference vegetation index (NDVI), field vegetation data, and 181 days (one goat per day) of GPS tracking were combined to quantify the spatial pattern of GI, and its effects on the vegetation community structure. The spatial distribution of GI was uneven, with a mean value of 0.50 goats/ha, and 95% of the study area had less than 1.30 goats/ha. The areas with utilization rates of rangeland (July) lower than 45% and 20% made up about 95% and 60% of the study area, respectively. Grazing significantly reduced monthly aboveground biomass, but the grazing effects on plant growth rate were complex across the different plant growth stages. Grazing impaired plant growth in general, but the intermediate GI appeared to facilitate plant growth rate at the end of the growing seasons. Grazing had minimal relationship with vegetation community structure characteristics, though Importance Value of forbs increased with increasing GI. Flexibility in the number of goats and conservatively defining utilization rate, according to the inter-annual variation of utilization biomass, would be beneficial to achieve ecologically healthy and economically sustainable GI.

ACS Style

Hua Cheng; Baocheng Jin; Kai Luo; JiuYing Pei; Xueli Zhang; Yonghong Zhang; Jiaqi Tang; Qin Yang; Guojun Sun. Vegetation Response to Goats Grazing Intensity in Semiarid Hilly Grassland of the Loess Plateau, Lanzhou, China. Sustainability 2021, 13, 3569 .

AMA Style

Hua Cheng, Baocheng Jin, Kai Luo, JiuYing Pei, Xueli Zhang, Yonghong Zhang, Jiaqi Tang, Qin Yang, Guojun Sun. Vegetation Response to Goats Grazing Intensity in Semiarid Hilly Grassland of the Loess Plateau, Lanzhou, China. Sustainability. 2021; 13 (6):3569.

Chicago/Turabian Style

Hua Cheng; Baocheng Jin; Kai Luo; JiuYing Pei; Xueli Zhang; Yonghong Zhang; Jiaqi Tang; Qin Yang; Guojun Sun. 2021. "Vegetation Response to Goats Grazing Intensity in Semiarid Hilly Grassland of the Loess Plateau, Lanzhou, China." Sustainability 13, no. 6: 3569.

Preprint content
Published: 03 March 2021
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Context Fine-scale spatial vegetation patterns are ubiquitous and can have profound impacts on large scale ecological processes including surface runoff, soil erosion, and livestock forage efficiency. However, we have limited knowledge of the fine-scale spatial vegetation patterns in humid grasslands.Objectives The objectives were to characterize the spatial vegetation patterns at centimeter scale in humid grasslands, quantify the vegetation patterns variation under different image pixel sizes and plant covers, and explore the potential ecological implications of the spatial vegetation patterns.Methods Seventy plots with plant covers ranging from 30.8–99.3% were selected from seven humid grasslands in southwest China and their spatial vegetation patterns quantified at image pixel sizes of 0.04, 0.25, 1, and 4 cm.Results With increasing pixel size, plant patch density and total edge density decreased, plant patch size increased, and the plant patch shape became more regular. At a plant cover level below 50%, increasing plant cover will result in increasing patch density and patch size, leading to greater spatial heterogeneity. At plant cover levels above 50%, increasing plant cover will cause the rapid expansion of patch size, along with a lower patch density, forming a more homogeneous landscape dominated by plant patches. The small stems, branches, and leaves of grasses fragmented non-plant patches into smaller patches with increasing plant cover; this fragmentation resembles road-induced landscape fragmentation processes.Conclusions Medium plant cover has the highest heterogeneity of spatial vegetation pattern at the fine scale, which may have significant implications on ecological processes and related management practices.

ACS Style

Qin Yang; Hua Cheng; Hongmei Pu; Xuechun Zhao; Rui Dong; Yulian Chen; Shenghui Yang; X. Ben Wu; Chao Chen; Baocheng Jin. Medium Plant Cover has the Highest Heterogeneity of Fine-Scale Spatial Vegetation Patterns in Humid grasslands. 2021, 1 .

AMA Style

Qin Yang, Hua Cheng, Hongmei Pu, Xuechun Zhao, Rui Dong, Yulian Chen, Shenghui Yang, X. Ben Wu, Chao Chen, Baocheng Jin. Medium Plant Cover has the Highest Heterogeneity of Fine-Scale Spatial Vegetation Patterns in Humid grasslands. . 2021; ():1.

Chicago/Turabian Style

Qin Yang; Hua Cheng; Hongmei Pu; Xuechun Zhao; Rui Dong; Yulian Chen; Shenghui Yang; X. Ben Wu; Chao Chen; Baocheng Jin. 2021. "Medium Plant Cover has the Highest Heterogeneity of Fine-Scale Spatial Vegetation Patterns in Humid grasslands." , no. : 1.

Journal article
Published: 18 January 2019 in Arid Land Research and Management
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ACS Style

Kai Zheng; Jian-Sheng Ye; Bao-Cheng Jin; Fen Zhang; Jian-Zhou Wei; Feng-Min Li. Effects of agriculture, climate, and policy on NDVI change in a semi-arid river basin of the Chinese Loess Plateau. Arid Land Research and Management 2019, 33, 321 -338.

AMA Style

Kai Zheng, Jian-Sheng Ye, Bao-Cheng Jin, Fen Zhang, Jian-Zhou Wei, Feng-Min Li. Effects of agriculture, climate, and policy on NDVI change in a semi-arid river basin of the Chinese Loess Plateau. Arid Land Research and Management. 2019; 33 (3):321-338.

Chicago/Turabian Style

Kai Zheng; Jian-Sheng Ye; Bao-Cheng Jin; Fen Zhang; Jian-Zhou Wei; Feng-Min Li. 2019. "Effects of agriculture, climate, and policy on NDVI change in a semi-arid river basin of the Chinese Loess Plateau." Arid Land Research and Management 33, no. 3: 321-338.

Journal article
Published: 21 April 2016 in Ecosphere
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Striking networks of livestock tracks, or terracettes, molded to the contours are a common feature on hilly rangelands of the semiarid Loess Plateau, one of the regions with the most severe soil erosion in the world. The formation of livestock tracks results in modified micro-topography and ecological processes and leads to strong patterns in spatial distribution of vegetation, water, and nutrients. We investigated the spatial pattern of the topo-edaphic, hydrological, biogeochemical, and biological attributes of these terracette landscapes and explored their potential implications to ecosystem functions. The results showed strong spatial heterogeneity in topo-edaphic and biological structure of these landscapes, organized with three segments of a basic landscape unit—track, shoulder, and interslope. The above- and below-ground biomass and soil nutrients concentrated in the shoulder segment forming a “band of fertility”. The network of livestock tracks likely reduced surface runoff and erosion by intercepting runoff and facilitate infiltration, while posing little risk of increasing shallow slope failures given the structure of loess soil. There appears a positive feedback loop for maintaining the structure of terracette landscapes. Trampling by goats maintains the tracks, which leads to spatial heterogeneity in biophysical structure and processes. The network of tracks enabled the goats to travel and graze in ways that reduce energy expenditure and increase foraging efficiency, which leads to strongly preferential use of the tracks by the goats. There are also evidence of a possible process resemble a slope parallel retreat at a micro-scale, which may result in upslope movement of the terracettes. There may be important functional differences between landscapes with and without networks of livestock tracks, in regulating water runoff and soil erosion, forage production, and soil carbon storage. These functional differences may have significant implications to land use policies and practices aiming at soil and water conservation and socioecological sustainability of the Loess Plateau.

ACS Style

Baocheng Jin; Guojun Sun; Ying Zhang; Mei Zou; Xiaofeng Ni; Kai Luo; Xueli Zhang; Hua Cheng; Fengmin Li; X. Ben Wu. Livestock tracks transform resource distribution on terracette landscapes of the Loess Plateau. Ecosphere 2016, 7, 1 .

AMA Style

Baocheng Jin, Guojun Sun, Ying Zhang, Mei Zou, Xiaofeng Ni, Kai Luo, Xueli Zhang, Hua Cheng, Fengmin Li, X. Ben Wu. Livestock tracks transform resource distribution on terracette landscapes of the Loess Plateau. Ecosphere. 2016; 7 (4):1.

Chicago/Turabian Style

Baocheng Jin; Guojun Sun; Ying Zhang; Mei Zou; Xiaofeng Ni; Kai Luo; Xueli Zhang; Hua Cheng; Fengmin Li; X. Ben Wu. 2016. "Livestock tracks transform resource distribution on terracette landscapes of the Loess Plateau." Ecosphere 7, no. 4: 1.