Effects of Planting Practices on Soil Organic Carbon during Old Apple Orchards' Reconstruction on the Loess Plateau

被引：3

作者：

Li, Wenzheng ^{[1
,2
]}

Gao, Jianen ^{[1
,2
,3
,4
]}

Zhang, Yuanyuan ^{[2
,3
]}

Ahmad, Rafiq ^{[1
,2
]}

Gao, Zhe ^{[5
]}

Zhou, Fanfan ^{[2
,6
]}

机构：

[1] Northwest Agr & Forestry Univ, Inst Soil & Water Conservat, Xianyang 712100, Peoples R China

[2] Minist Water Resources, Water & Soil Conservat Ecol Engn Technol Res Ctr, Xianyang 712100, Peoples R China

[3] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Xianyang 712100, Peoples R China

[4] Chinese Acad Sci & Minist Educ, Res Ctr Soil & Water Conservat & Ecol Environm, Xianyang 712100, Peoples R China

[5] Northwest Agr & Forestry Univ, Coll Water Resources & Construct Engn, Xianyang 712100, Peoples R China

[6] Pingluo Cty Water Affairs Bur, Shizuishan 753400, Peoples R China

来源：

AGRONOMY-BASEL | 2023年 / 13卷 / 03期

基金：

中国国家自然科学基金;

关键词：

planting practices; soil organic carbon; old orchard; Loess Plateau; LAND-USE CHANGE; MALUS-DOMESTICA; USE CONVERSION; CLIMATE-CHANGE; SEQUESTRATION; GROWTH; STOCKS; NITROGEN; STORAGE; IMPACT;

D O I：

10.3390/agronomy13030897

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Changes in the soil organic matter are related to the land-use change of sustainable agricultural production. However, few studies have been reported on the effects of changes in planting practices on SOC during the reconstruction period of old apple orchards. In this study, 4 treatments were applied during the reconstruction period of old apple orchards (more than 20 years old) on the Loess Plateau: thinning and replanted apple saplings (TR); all felled and planted corn (CR); all felled and planted millet (MT); all felled and planted potato (PT). It was found that: SOC was ranked as MT > PT > CR > TR, and decreased with soil depth, obeying the power function law; this first decreased and then increased, with the lowest ranking of the year being obtained in August in a year; MT was the most effective in increasing SOC, with an average annual growth rate of 0.54 g/(kg center dot year). In this study, the complex relationship between rainfall, temperature, solar radiation, soil moisture content, and soil organic carbon was established. The results not only provide a reference for the reconstruction of old apple orchards, but also provide support for sustainable agricultural production in the fragile ecological zone of the Loess Plateau.

引用

页数：14

共 49 条

[1] Isolation of soybean-specific plant growth-promoting rhizobacteria using soybean agglutin and evaluation of their effects to improve soybean growth, yield, and soil nutritional status [J].