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黄土高原延河流域不同植被类型下土壤 生态化学计量学特征
曾全超; 李 鑫; 董扬红; 安韶山
Source Publication自 然 资 源 学 报


Other Abstract

The Loess Plateau in China is one of the most eroded areas in the world.
Accordingly, the“Grain-for-Green Program”was implemented on a large scale by the central
government from 1999; vegetation restoration has been implemented in this area to remedy the
soil degradation problem. Vegetation type plays an essential role in ecosystem recovery and
affects soil quality, especially soil carbon (C), nitrogen (N) and phosphorus (P) contents.
Nutrient stoichiometry has been successfully used to indicate community succession and
vegetation restoration in recent years. Studies on the effects of different vegetation types on soil
C, N and P stoichiometry are helpful to understand the relationships between vegetation
restoration and soil quality, and also beneficial to understand the processes and functions of the
ecological system. The Yanhe River is a tributary of the Yellow River and the Yanhe watershed
has fragile ecological environment, limited vegetation and serious soil erosion. We chose the
Yanhe watershed as the subject of this study because there are different vegetation zones in the
watershed, including trees, shrubs, grasses and different combinations of the three types of
vegetation. The effects of vegetation (Forest, Forest-Grass, and Grass zones) on soil C, N, and
P stoichiometry in Yanhe watershed were studied in this paper. Soil and vegetation were
surveyed in 115 sample sites from 9 watersheds, with 24 sample sites in the Forest zones, 58
sample sites in the Forest-Grass zones and 33 sample sites in the Grass zones. We collected
soils at the 0-10 and 10-20 cm soil layers, and analyzed total organic C, total N and total P of
the soil. The results showed that type of vegetation had significant effects on soil properties.

Keyword黄土高原 土壤 生态化学计量学 植被带 土地利用方式
Indexed By中文核心期刊要目总览
Document Type期刊论文
Affiliation1.西北农林科技大学 a.资源环境学院
2.黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西 杨凌 712100
Recommended Citation
GB/T 7714
曾全超,李 鑫,董扬红,等. 黄土高原延河流域不同植被类型下土壤 生态化学计量学特征[J]. 自 然 资 源 学 报,2016,31(11):1882-1889.
APA 曾全超,李 鑫,董扬红,&安韶山.(2016).黄土高原延河流域不同植被类型下土壤 生态化学计量学特征.自 然 资 源 学 报,31(11),1882-1889.
MLA 曾全超,et al."黄土高原延河流域不同植被类型下土壤 生态化学计量学特征".自 然 资 源 学 报 31.11(2016):1882-1889.
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