Evaluating the role of livelihood assets in suitable livelihood strategies: Protocol for anti-poverty policy in the Eastern Tibetan Plateau, China

2017 ◽  
Vol 78 ◽  
pp. 62-74 ◽  
Author(s):  
Xiaobo Hua ◽  
Jianzhong Yan ◽  
Yili Zhang
2019 ◽  
Vol 65 (252) ◽  
pp. 633-644 ◽  
Author(s):  
YANG LI ◽  
SHICHANG KANG ◽  
FANGPING YAN ◽  
JIZU CHEN ◽  
KUN WANG ◽  
...  

ABSTRACTCryoconite is a dark-coloured granular sediment that contains biological and mineralogical components, and it plays a pivotal role in geochemistry, carbon cycling and glacier mass balance. In this work, we collected cryoconite samples from Laohugou Glacier No. 12 (LHG) on the north-eastern Tibetan Plateau during the summer of 2015 and measured the spectral albedo. To explore the impacts of this sediment on surface ablation, the ice melting differences between the cryoconite-free (removed) ice and the intact layers were compared. The results showed that the mean concentrations of black carbon (BC), organic carbon (OC) and total iron (Fe) in the LHG cryoconite were 1.28, 11.18 and 39.94 mg g−1, respectively. BC was found to play a stronger role in solar light adsorption than OC and free Fe. In addition, ice covered by cryoconite exhibited the lowest mean reflectance (i.e., <0.1). Compared with the cryoconite-free ice surface, cryoconite effectively absorbed solar energy and enhanced glacial melting at a rate of 2.27–3.28 cm d−1, and free Fe, BC and OC were estimated to contribute 1.01, 0.99 and 0.76 cm d−1, respectively. This study provides important insights for understanding the role of cryoconite in the glacier mass balance of the northern Tibetan Plateau.


Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2601 ◽  
Author(s):  
Yong Zhang ◽  
Shiyin Liu ◽  
Qiao Liu ◽  
Xin Wang ◽  
Zongli Jiang ◽  
...  

Runoff from high-elevation, debris-covered glaciers is a crucial water supply in the Tibetan Plateau (TP) and its surroundings, where insufficient debris thickness data make it difficult to analyze its influence. Here, we investigated the role of debris cover in runoff formation of the Hailuogou catchment in the south-eastern Tibetan Plateau for the 1988–2017 period, based on long-term observations combined with a physically based glacio-hydrological model. The catchment is characterized by extensive thin debris on the ablation zones of three debris-covered glaciers. An increasing trend in catchment runoff has been observed in the past three decades, more than 50% of which is attributed to glacier runoff in the last decade. With the exception of the influence of temperature rising and precipitation decreasing, our results underline the importance of debris cover and its spatial features in the glaciological and hydrological processes of the catchment, in which the acceleration effect of debris cover is dominant in the catchment. An experimental analysis indicated that the extraordinary excess meltwater in the catchment is generated from the debris-covered surface, especially the lower elevation region below 3600 m a.s.l.


2018 ◽  
Vol 10 (7) ◽  
pp. 2525 ◽  
Author(s):  
Lun Yang ◽  
Moucheng Liu ◽  
Fei Lun ◽  
Qingwen Min ◽  
Canqiang Zhang ◽  
...  

The livelihood of peasant households is one of the selection criteria of Globally Important Agricultural Heritage Systems and a critical factor that affects agricultural heritage system conservation and inheritance. Taking the Honghe Hani Rice Terraces System (HHRTS) and Shexian Dryland Terraces System (SDTS) as examples, we investigated 304 households through a participatory rural appraisal method to discuss the livelihood assets and strategies of households in agricultural heritage systems. From the viewpoint of livelihood strategies, household strategies can be divided into pure agricultural, nonagricultural, and part-time agricultural strategies. The livelihood strategies of households in the HHRTS feature a higher proportion of nonagricultural, while those in the SDTS have a diverse distribution. With respect to livelihood assets, we constructed a livelihood assets accounting framework to highlight the important role of traditional culture and information technology in agricultural activities. The average livelihood assets value in the HHRTS and SDTS was 2.249 and 1.832, respectively. Then, applying the multinomial logit model, we quantitatively analyzed the relationship between livelihood assets and strategies. The results show that in both terrace systems, the understanding of traditional agricultural knowledge is important to suppress the shift of pure agricultural households to nonagricultural or part-time agricultural households. Therefore, in order to achieve dynamic conservation of terrace systems, it is necessary to effectively increase the cultural assets level of households, especially farmers’ understanding of traditional agricultural knowledge.


2020 ◽  
Vol 65 (8) ◽  
pp. 185-195
Author(s):  
Thuy Nguyen Thi Bich

Social capital is the term that receives lots of attention from Vietnamese and international authors. Social capital reduces the costs of economic transactions. It does not directly produce material and spiritual benefits, but converts it into other types of capital, thereby producing benefits. Social capital is important for immigrants in addition to other types of capital. The paper aims to analyze the theoretical views of different authors on social capital, livelihoods as well as the role of social capital in general and livelihoods of immigrants in particular. Using social capital in livelihood strategies has helped immigrants reduce costs in the addition of information on knowledge, career experience, procurement of livelihood assets; and find work, business cooperation,...


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