干旱区绿洲耕地撂荒与复耕对土壤水力性质的影响

刘斐耀, 尤全刚, 吴思渊, 黄翠华, 潘晶, 马绍休, 陈小杰, 薛娴

Effects of abandonment and recultivation of farmland on soil hydraulic properties in a typical oasis of arid regions

Feiyao Liu, Quangang You, Siyuan Wu, Cuihua Huang, Jing Pan, Shaoxiu Ma, Xiaojie Chen, Xian Xue

表1 耕地、撂荒地与撂荒复耕地土壤粒径分布、有机质含量、大孔隙度与容重

Table 1 Soil particle composition， soil organic matters， microporosity and bulk density of cultivated land， abandoned land and recultivated land

土地类型	深度/cm	黏粒/%	粉粒/%	砂粒/%	有机质/（g·kg^-1）	大孔隙度/%	容重/（g·cm^-3）
耕地	5	20.01±0.35^aB	40.68±0.76^aB	39.31±0.99^aA	10.23±0.09^aA	20.20±0.65^aB	1.40±0.03^bA
	20	22.22±0.65^aA	42.81±1.04^aB	34.97±1.69^aA	9.23±0.07^bA	13.46±0.70^bB	1.52±0.02^aA
	40	22.31±0.30^aB	42.61±0.36^aA	35.08±0.38^aA	7.73±0.21^cA	17.39±0.70^aA	1.46±0.02^abA
撂荒地	5	21.92±0.63^aAB	43.74±0.83^aAB	34.34±1.44^aAB	9.76±0.59^aA	25.13±0.24^aA	1.39±0.02^cA
	20	22.88±0.22^abA	44.29±0.75^aAB	32.83±0.54^aAB	7.52±0.11^bB	21.78±0.18^bA	1.44±0.01^bB
	40	24.68±0.22^aA	41.54±0.26^aA	33.78±0.18^aA	6.58±0.13^bC	19.25±0.04^cA	1.49±0.01^aA
复耕地	5	24.11±0.52^aA	45.91±0.52^aA	29.98±1.01^aB	9.51±0.12^aA	19.92±1.23^aB	1.41±0.03^aA
	20	24.79±0.45^aA	48.65±1.02^aA	26.56±1.30^aB	8.60±0.03^bB	16.65±1.08^aB	1.52±0.01^aA
	40	25.50±0.27^aA	45.40±1.02^aA	29.10±1.24^aB	7.13±0.23^cAB	15.30±0.28^aB	1.49±0.02^aA