000			02511nab|a22003497a|4500
001			64638
003			MX-TxCIM
005			20211203225923.0
008			191025s2020||||sz |||p|op||||00||0|eng|d
022			_a2071-1050
024	8		_ahttps://doi.org/10.3390/su12010135
040			_aMX-TxCIM
041			_aeng
100	0		_925536 _aLin Chu
245	1	0	_aSpatial heterogeneity of winter wheat yield and its determinants in the Yellow River Delta, China
260			_aBasel (Switzerland) : _bMDPI, _c2020.
500			_aPeer review
500			_aOpen Access
520			_aUnderstanding spatial differences of crop yields and quantitatively exploring the relationship between crop yields and influencing factors are of great significance in increasing regional crop yields, promoting sustainable development of regional agriculture and ensuring regional food security. This study investigates spatial heterogeneity of winter wheat yield and its determinants in the Yellow River Delta (YRD) region. The spatial pattern of winter wheat in 2015 was mapped through time series similarity analysis. Winter wheat yield was estimated by integrating phenological information into yield model, and cross-validation was performed using actual yield data. The geographical detector method was used to analyze determinants influencing winter wheat yield. This study concluded that the overall classification accuracy for winter wheat is 88.09%. The estimated yield agreed with actual yield, with R2 value of 0.74 and root mean square error (RMSE) of 1.02 t ha−1. Cumulative temperature, soil salinity and their interactions were key determinants affecting winter wheat yield. Several measures are recommended to ensure sustainable crop production in the YRD region, including improving irrigation and drainage systems to reduce soil salinity, selecting salt-tolerant winter wheat varieties, and improving agronomy techniques to extend effective cumulative temperature.
546			_aText in English
650		7	_2AGROVOC _91066 _aCrop yield
650		7	_2AGROVOC _99250 _aSpatial distribution
650		7	_2AGROVOC _92104 _aWinter wheat
651		7	_2AGROVOC _93990 _aChina
700	0		_aChong Huang _925537
700	0		_aQingsheng Liu _925538
700	0		_aChongfa Cai _925539
700	0		_aGaohuan Liu _925540
773	0		_gv. 12, no. 1, art. 135 _dBasel (Switzerland) : MDPI, 2020. _x2071-1050 _tSustainability
856	4		_yClick here to access online _uhttps://doi.org/10.3390/su12010135
942			_cJA _n0 _2ddc
999			_c64638 _d64630