Effects of long-term cultivation on soil physicochemical properties and enzyme activities of artificial sandy paddy field in semi-arid region

doi:10.7522/j.issn.1000-694X.2026.00003

Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (3): 187-194.DOI: 10.7522/j.issn.1000-694X.2026.00003

Effects of long-term cultivation on soil physicochemical properties and enzyme activities of artificial sandy paddy field in semi-arid region

Anqi Cong¹^,²^,³(), Jin Zhan⁴, Ning Wang⁵, Tonghui Zhang²(), Xinping Liu¹^,²()

^1.State Key Laboratory of Ecological Security and Sustainable Development in Arid Regions /, Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^2.Inner Mongolia Naiman Agroecosystem National Field Observation and Research Station, Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^3.University of Chinese Academy of Sciences，Beijing 100049，China
^4.Gansu Minqin National Field Observation & Research Station on Ecosystem of Desert Grassland，Gansu Desert Control Research Institute，Lanzhou 730070，China
^5.Institute of Crop Sciences，Gansu Academy of Agricultural Sciences，Lanzhou 730070，China

Received:2025-10-27 Revised:2026-02-02 Online:2026-05-20 Published:2026-06-11
Contact: Tonghui Zhang, Xinping Liu

Abstract

Abstract:

To investigate soil changes in artificially sandy paddy fields after continuous cultivation in semi-arid sandy regions， the study region was selected in northern Hure Banner， located at the southern edge of the Horqin Sandy Land. The physicochemical properties and four soil enzyme activity indicators were measured and analyzed for artificially created sandy paddy fields with different cultivation durations （1， 5， 10， 15， 20， 27 a） and their adjacent dune soils （control CK）. The study results indicate that：（1） Increasing paddy cultivation duration significantly reduced surface soil pH and bulk density while increasing electrical conductivity. The content of medium-coarse sand decreased significantly， while that of silt and clay particles increased significantly. Soil organic matter content increased significantly， with a maximum increase of 199.5%； soil total nitrogen content increased significantly， with a maximum increase of 161.1%. （2） With increasing years of rice cultivation， the activities of soil urease， soil catalase， and soil phosphatase significantly increased； soil sucrase activity first rose and then declined. These changes indicate that artificial sandy paddy field technology significantly impacts soil physicochemical properties and enzyme activities， demonstrating that rational human intervention is an effective measure for improving semi-arid sandy soils and ecological management.

Key words: Horqin Sandy Land, artificial sandy paddy technology, soil physicochemical properties, soil enzyme activity, aeolian entisols

CLC Number:

P941.73

Anqi Cong, Jin Zhan, Ning Wang, Tonghui Zhang, Xinping Liu. Effects of long-term cultivation on soil physicochemical properties and enzyme activities of artificial sandy paddy field in semi-arid region[J]. Journal of Desert Research, 2026, 46(3): 187-194.

Figures/Tables 5

References 43

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耕作年限/a	土壤理化性质
耕作年限/a	pH	电导率/(μS·cm^-1)	容重/(g·cm^-3)
0~10 cm土层
CK	7.02±0.06^a	31.17±5.30^b	1.55±0.01^a
1	7.00±0.39^a	63.75±7.65^b	1.52±0.01^ab
5	6.37±0.40^ab	133.25±15.89^a	1.46±0.02^bc
10	6.16±0.26^ab	151.53±21.73^a	1.45±0.01^bc
15	6.03±0.23^b	153.98±26.65^a	1.44±0.05^bc
20	5.70±0.18^b	150.70±23.48^a	1.38±0.03^c
27	5.91±0.32^b	144.50±14.52^a	1.44±0.02^bc
10~20 cm土层
CK	6.98±0.02^ab	31.00±5.12^c	1.54±0.02^bcd
1	7.15±0.26^a	67.75±9.23^bc	1.63±0.01^a
5	6.90±0.34^ab	159.30±23.55^a	1.52±0.02^cd
10	6.71±0.24^abc	136.93±26.37^a	1.58±0.01^bc
15	6.57±0.32^abc	120.73±5.17^ab	1.57±0.02^bc
20	6.01±0.14^c	145.88±24.47^a	1.51±0.02^d
27	6.29±0.04^bc	108.55±11.84^ab	1.59±0.03^ab

耕作年限/a	土壤理化性质
耕作年限/a	pH	电导率/(μS·cm^-1)	容重/(g·cm^-3)
0~10 cm土层
CK	7.02±0.06^a	31.17±5.30^b	1.55±0.01^a
1	7.00±0.39^a	63.75±7.65^b	1.52±0.01^ab
5	6.37±0.40^ab	133.25±15.89^a	1.46±0.02^bc
10	6.16±0.26^ab	151.53±21.73^a	1.45±0.01^bc
15	6.03±0.23^b	153.98±26.65^a	1.44±0.05^bc
20	5.70±0.18^b	150.70±23.48^a	1.38±0.03^c
27	5.91±0.32^b	144.50±14.52^a	1.44±0.02^bc
10~20 cm土层
CK	6.98±0.02^ab	31.00±5.12^c	1.54±0.02^bcd
1	7.15±0.26^a	67.75±9.23^bc	1.63±0.01^a
5	6.90±0.34^ab	159.30±23.55^a	1.52±0.02^cd
10	6.71±0.24^abc	136.93±26.37^a	1.58±0.01^bc
15	6.57±0.32^abc	120.73±5.17^ab	1.57±0.02^bc
20	6.01±0.14^c	145.88±24.47^a	1.51±0.02^d
27	6.29±0.04^bc	108.55±11.84^ab	1.59±0.03^ab

耕作年限/a	不同粒径土壤机械组成/%
耕作年限/a	>0.25 mm	0.10~0.25 mm	0.05~0.10mm	<0.05 mm
0~10 cm土层
CK	45.21±3.97^a	43.15±1.82^a	3.03±1.23^b	8.60±1.84^c
1	44.74±1.41^a	41.93±0.73^a	3.22±0.95^b	10.11±1.14^bc
5	39.37±3.23^ab	41.40±1.57^a	4.73±1.47^ab	14.49±0.47^ab
10	41.29±3.70^ab	41.48±0.89^a	4.43±1.34^ab	12.79±1.70^abc
15	41.72±3.37^ab	41.70±1.18^a	5.48±1.78^ab	11.10±2.48^bc
20	35.76±2.17^ab	43.94±1.30^a	7.55±1.34^ab	12.75±2.09^abc
27	32.17±1.98^b	42.48±2.00^a	8.34±1.74^a	17.01±1.74^a
10~20 cm土层
CK	44.13±1.24^a	45.18±1.21^a	3.53±1.66	8.41±0.93^b
1	41.65±1.69^ab	43.14±1.19^ab	2.82±0.77^c	12.39±0.71^ab
5	38.81±3.53^abc	41.02±1.04^b	5.23±1.51^bc	14.95±1.11^a
10	41.99±2.46^ab	41.92±0.90^ab	3.65±0.55^c	12.44±1.35^ab
15	43.14±2.14^a	41.47±1.24^ab	4.22±1.33^bc	11.18±1.52^ab
20	35.32±0.85^bc	43.48±1.92^ab	7.60±1.01^ab	13.60±1.68^a
27	32.35±2.18^c	42.37±0.74^ab	10.09±0.57^a	15.20±1.77^a

耕作年限/a	不同粒径土壤机械组成/%
耕作年限/a	>0.25 mm	0.10~0.25 mm	0.05~0.10mm	<0.05 mm
0~10 cm土层
CK	45.21±3.97^a	43.15±1.82^a	3.03±1.23^b	8.60±1.84^c
1	44.74±1.41^a	41.93±0.73^a	3.22±0.95^b	10.11±1.14^bc
5	39.37±3.23^ab	41.40±1.57^a	4.73±1.47^ab	14.49±0.47^ab
10	41.29±3.70^ab	41.48±0.89^a	4.43±1.34^ab	12.79±1.70^abc
15	41.72±3.37^ab	41.70±1.18^a	5.48±1.78^ab	11.10±2.48^bc
20	35.76±2.17^ab	43.94±1.30^a	7.55±1.34^ab	12.75±2.09^abc
27	32.17±1.98^b	42.48±2.00^a	8.34±1.74^a	17.01±1.74^a
10~20 cm土层
CK	44.13±1.24^a	45.18±1.21^a	3.53±1.66	8.41±0.93^b
1	41.65±1.69^ab	43.14±1.19^ab	2.82±0.77^c	12.39±0.71^ab
5	38.81±3.53^abc	41.02±1.04^b	5.23±1.51^bc	14.95±1.11^a
10	41.99±2.46^ab	41.92±0.90^ab	3.65±0.55^c	12.44±1.35^ab
15	43.14±2.14^a	41.47±1.24^ab	4.22±1.33^bc	11.18±1.52^ab
20	35.32±0.85^bc	43.48±1.92^ab	7.60±1.01^ab	13.60±1.68^a
27	32.35±2.18^c	42.37±0.74^ab	10.09±0.57^a	15.20±1.77^a

Effects of long-term cultivation on soil physicochemical properties and enzyme activities of artificial sandy paddy field in semi-arid region

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