Journal of Ecology and Rural Environment ›› 2020, Vol. 36 ›› Issue (4): 470-479.doi: 10.19741/j.issn.1673-4831.2019.0762

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Study on Ecological Utilization of Mountain Valley Highland Barley Land in Qomolangma National Nature Reserve Based on One-Year Phenological Monitoring

CAI Kui1, SHI Yun-jie2, GONG Zi-ling3   

  1. 1. School of Economics, Yunnan University, Kunming 650500, China;
    2. School of Resource Environment and Earth Science, Yunnan University, Kunming 650500, China;
    3. Snow Leopard Conservation Center, Shigatse 857000, China
  • Received:2019-09-25 Online:2020-04-25 Published:2020-04-27

Abstract: In the context of current ecological civilization construction and rural revitalization strategy, the ecological utilization in village level is particularly important. Taking the highland barley land at Z Village of Qomolangma National Nature Reserve as the research area, Brinno TLC 200 phenology camera was used to record the land use change information from August 2017 to August 2018 depending on manual point selection and fixed angle placement, extract the change information of land use, calculate the green leaf index, analyze the regular pattern, and differential degree of land use as well as the vegetation cover change and economic benefits. The findings illustrate that, the land use in the study area was divided into 5-month cultivation period and 7-month grazing period from 2017 to 2018, and presented a pattern of the sowing time of cultivated land > sheep herding period > cattle herding period in accordance with the traditional land use behavior in the region. Meanwhile, the components of farming activities and grazing activities composed the organic circulation system in the study area. The high, middle and low utilization levels of the land in the study area corresponded to the cultivation period, grazing period and fallow period respectively with cultivation period > grazing period > fallow period. In different periods of the year, the vegetation cover changed apparently, and the green leaf index (GLI) had a changing trend of smooth fluctuation-rising-falling-smooth fluctuation, which was consistent with the cultivation and grazing periods. When the GLI fluctuated around 0, cattle, sheep and wild animals presented, together with frequent rainfall. When the GLI was positive number, the labour input increased. The economic benefit of highland barley land was 98.15 yuan every 667 m2, mainly from grain, with high labor input, resulted in overall low economic benefit.

Key words: phenological camera, highland barley land, utilization characteristics, green leaf index, Qomolangma National Nature Reserve

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