A global meta-analysis of changes in soil carbon, nitrogen, phosphorus and sulfur, and stoichiometric shifts after forestation

被引：113

作者：

Shi, Shengwei ^{[1
,2
,3
]}

Peng, Changhui ^{[1
,2
]}

Wang, Meng ^{[1
,3
]}

Zhu, Qiuan ^{[1
,3
]}

Yang, Gang ^{[4
]}

Yang, Yanzheng ^{[1
,3
]}

Xi, Tingting ^{[2
,5
]}

Zhang, Tinglong ^{[1
,3
]}

机构：

[1] Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China

[2] Univ Quebec, Dept Biol Sci, Ctr CEF ESCER, Montreal, PQ H3C 3P8, Canada

[3] Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China

[4] Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Peoples R China

[5] Heilongjiang Inst Technol, Coll Environm Econ, Harbin 150050, Peoples R China

来源：

PLANT AND SOIL | 2016年 / 407卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

Carbon sequestration; Planted forests; Nutrient availability; Soil properties; Stoichiometry; LAND-USE CHANGE; ORGANIC-CARBON; GREEN PROGRAM; NUTRIENT AVAILABILITY; CHINESE GRAIN; FIXING TREES; AFFORESTATION; SEQUESTRATION; STORAGE; STOCKS;

D O I：

10.1007/s11104-016-2889-y

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Planted forests, established on non-forest lands, play an important role in enhancing terrestrial carbon (C) sequestration. Understanding the changes in soil C, nutrients and stoichiometry in planted forests is important for forest management. We conducted a global meta-analysis of changes in C, nitrogen (N), phosphorus (P) and sulfur (S) and their stoichiometry in mineral soils of planted forest across broad climatic zones from 139 papers. Soil C and N are slightly decreased after forestation on grassland, moderately increased after forestation on cropland, and substantially increased after forestation on barren land. Forestation does not affect total soil P, but the available P is significantly depleted after the forestation of grassland and cropland with N-fixers. Changes in soil nutrients (N, P and S) and shifts in stoichiometry (ratios of C:N, C:P and N:P) are significantly related to soil C dynamics (p < 0.05). Soil C sequestration is the lowest in the boreal zone, and greater under plantation with N-fixing species than under non-fixing species. Changes in soil C and nutrients after forestation mainly differ to prior land use. Compared with forestation of grassland, forestation of barren land is a more effective approach to enhancing C sequestration.

引用

页码：323 / 340

页数：18

共 82 条

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