Assessment of Drought Impact on Main Cereal Crops Using a Standardized Precipitation Evapotranspiration Index in Liaoning Province, China

Chen, Taotao; Xia, Guimin; Liu, Tiegang; Chen, Wei; Chi, Daocai

doi:10.3390/su8101069

Cited by 52 publications

(39 citation statements)

References 39 publications

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“…This methodology has been applied in other similar studies (Chen et al, 2016;Potopová et al, 2015;Tian et al, 2018). the full procedure is described by Lobell and Asner, (2003), Lobell et al, (2011) and Potopová et al, (2015).…”

Section: 1crop Yield Datamentioning

confidence: 99%

The impact of drought on the productivity of two rainfed crops in Spain

Peña-Gallardo¹,

Vicente‐Serrano²,

Domínguez‐Castro³

et al. 2019

Preprint

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Abstract. Drought events are of great importance in most Mediterranean climate regions because of the diverse and costly impacts they have in various economic sectors and on the environment. The effects of this natural hazard on rainfed crops are particularly evident. In this study the impacts of drought on two representative rainfed crops in Spain (wheat and barley) were assessed. As the agriculture sector is vulnerable to climate, it is especially important to identify the most appropriate tools for monitoring the impact of the weather on crops, and particularly the impact of drought. Drought indices are the most effective tool for that purpose. Various drought indices have been used to assess the influence of drought on crop yields in Spain, including the standardized precipitation and evapotranspiration index (SPEI), the standardized precipitation index (SPI), the Palmer drought indices (PDSI, Z-Index, PHDI, PMDI), and the standardized Palmer drought index (SPDI). Two sets of crop yield data at different spatial scales and temporal periods were used in the analysis. The results showed that drought indices calculated at different time scales (SPI, SPEI) most closely correlated with crop yield. The results also suggested that different patterns of yield response to drought occurred depending on the region, period of the year, and the drought time scale. The differing responses across the country were related to season and the magnitude of various climate variables.

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Section: 1crop Yield Datamentioning

confidence: 99%

The impact of drought on the productivity of two rainfed crops in Spain

Peña-Gallardo¹,

Vicente‐Serrano²,

Domínguez‐Castro³

et al. 2019

Preprint

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“…First, a comparison of the AD-SPEI crop with the average yields in Vojvodina was made, and then a comparison with the average yields at the municipal level in Vojvodina was made in order to obtain more detailed results on the local level. The comparison of the indices with the crop yields can be found in the studies of numerous other authors (e.g., [6,51,[96][97][98]).…”

Section: Step I-the Comparison Of the Ad-spei Crop With Relevant Paramentioning

confidence: 99%

“…The correlation between the AD-SPEI crop and the yields of the analyzed crops was estimated based on Pearson's correlation coefficient r at significance levels of α = 0.05 and α = 0.10. The aggregated index values (average values) and average crop yields for the region were used according to the [51][52][53]97,98]. The values of Pearson's correlation coefficient between the AD-SPEI crop and the detrended yields of the analyzed crops are presented in the Table 6.…”

Section: The Comparison Of the Ad-spei Crop With The Average Yields Imentioning

confidence: 99%

SPEI-Based Approach to Agricultural Drought Monitoring in Vojvodina Region

Bezdan

Blagojević

et al. 2019

Water

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This paper presents the standardized precipitation evapotranspiration index (SPEI)-based approach to agricultural drought monitoring (ADM-SPEI approach) combining well-known methods, expert’ critical opinions, and local agro-climatic specificities. The proposed approach has been described in detail in three phases. This allows its application in any region and modification according to different agro-climatic conditions. The application of the ADM-SPEI approach has resulted in obtaining a modified SPEI for different crops (agricultural drought SPEI (AD-SPEIcrop)) in the Vojvodina region. In the first phase of the proposed approach, analytical hierarchy process (AHP) was used to obtain an experts’ group decision regarding the most suitable method for calculating evapotranspiration for a particular analyzed region. In the second phase, SPEI was modified and adjusted to the conditions in Vojvodina, where ET0 was replaced by ETc. In the validation phase, the results of the application of AD-SPEIcrop were compared to crop yields and well-known indices and evaluated by the experts’ feedback. The statistically significant correlations were achieved between AD-SPEIcrop and crop yields. The highest correlations were achieved in the months when the analyzed crops were in the developmental stages when they are most sensitive to drought. The AD-SPEIcrop better correlates to the crop yields compared to SPEI. The comparison of AD-SPEIcrop to the standardized precipitation index (SPI), SPEI, and self-calibrated Palmer drought severity index (SC-PDSI) shows that it can successfully detect dry and wet periods. The results have indicated that the proposed approach can be successfully applied, and AD-SPEIcrop has shown a good performance for agricultural drought monitoring.

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“…As shown in Figure 1, Yunnan Province (21)(22)(23)(24)(25)(26)(27)(28)(29)(30) • N, 97-107 • E) is located in the southwest of China. The province includes eight cities (Kunming City, Yuxi City, Lijiang City, Lincang City, Baoshan City, Zhaotong City, Qujing City, and Puer City) and eight minority autonomous prefectures (Chuxiong Yi, Diqing Tibetan, Nujiang Lisu, Dali Bai, Dai-Jingpo of Dehong, Wenshan Zhuang and Miao, Xishuangbanna Dai, and Honghe Hani and Yi Autonomous Prefecture).…”

Section: Study Areas and Data Sourcesmentioning

confidence: 99%

“…Regarding research, particularly complex regional research, Southwest China is the least studied area [21]. Yunnan Province is a typical arid drought-afflicted region in China.…”

Section: Introductionmentioning

confidence: 99%

Assessing Agricultural Drought Vulnerability by a VSD Model: A Case Study in Yunnan Province, China

Lin

Wang³

et al. 2017

Sustainability

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Drought vulnerability of agriculture is significant to economic development and sustainable food production. In this paper, we proposed a framework to evaluate the regional agricultural-eco environment in the face of drought caused by climate change. Based on a vulnerability scoping diagram (VSD) model, we built up a comprehensive system to evaluate the agricultural drought vulnerability of Yunnan Province in China. The model highlights the human-land relationship by considering both natural conditions and human activities. Twelve indicators were generated to construct three components of the model: exposure, sensitivity, and adaptive capacity. During the construction of the VSD model, the entropy and the analytic hierarchy process (AHP) comprehensive analysis method were adopted to generate the weights and to compute the composite index for each section. Furthermore, the factor analysis method was used to determine the dominant factors of different cities and the main indicators driving the system. The results indicated a spatial pattern that the vulnerability value was high on the eastern and western sides, but low in the middle of Yunnan Province. Most of the vulnerable regions were concentrated in remote areas. Indicators such as population density, irrigation level, annual average precipitation, cultivation land ratio, and difficulty of water supply were the main driving factors. This means that there is a deep connection between agricultural drought vulnerability and urbanization. The evaluation system developed during this research will provide guidance for drought mitigation in regions of complex terrain.

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Assessment of Drought Impact on Main Cereal Crops Using a Standardized Precipitation Evapotranspiration Index in Liaoning Province, China

Cited by 52 publications

References 39 publications

The impact of drought on the productivity of two rainfed crops in Spain

The impact of drought on the productivity of two rainfed crops in Spain

SPEI-Based Approach to Agricultural Drought Monitoring in Vojvodina Region

Assessing Agricultural Drought Vulnerability by a VSD Model: A Case Study in Yunnan Province, China

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