Woody plant encroachment enhances soil infiltrability of a semiarid karst savanna
نویسندگان
چکیده
منابع مشابه
Biogeochemical Changes Accompanying Woody Plant Encroachment in a Subtropical Savanna
Ecosystem properties of surficial (0–10 cm) soils in remnant herbaceous patches were compared to those of contrasting woody plant patch types (upland discrete cluster, upland grove, and lowland woodland) where shifting land cover is known to have occurred over the past 50–77 yr. The purpose of this study was to evaluate and quantify the biogeochemical consequences and subsequent developmental r...
متن کاملLong-term livestock exclusion facilitates native woody plant encroachment in a sandy semiarid rangeland
The role of livestock grazing in regulating woody cover and biomass in grass-dominant systems is well recognized. However, the way in which woody plant populations in respond when livestock are removed from grazing in the absence of other disturbances, such as fire, remains unclear.We conducted a 10-year, replicated fencing experiment in a sandy semiarid rangeland in northern China (which has a...
متن کاملEffects of anabolic and catabolic nutrients on woody plant encroachment after long-term experimental fertilization in a South African savanna
The causes of the worldwide problem of encroachment of woody plants into grassy vegetation are elusive. The effects of soil nutrients on competition between herbaceous and woody plants in various landscapes are particularly poorly understood. A long-term experiment of 60 plots in a South African savanna, comprising annual applications of ammonium sulphate (146-1166 kg ha-1 yr-1) and superphosph...
متن کاملWoody overstorey effects on soil carbon and nitrogen pools in South African savanna
Woody plant encroachment in savannas may alter carbon (C) and nitrogen (N) pools over the longterm, which could have regional or global biogeochemical implications given the widespread encroachment observed in the vast savanna biome. Soil and litter %C and %N were surveyed across four soil types in two encroached, semiarid savanna landscapes in northern South Africa. Litter at sampling points w...
متن کاملWoody encroachment reduces nutrient limitation and promotes soil carbon sequestration
During the past century, the biomass of woody species has increased in many grassland and savanna ecosystems. As many of these species fix nitrogen symbiotically, they may alter not only soil nitrogen (N) conditions but also those of phosphorus (P). We studied the N-fixing shrub Dichrostachys cinerea in a mesic savanna in Zambia, quantifying its effects upon pools of soil N, P, and carbon (C), ...
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ژورنال
عنوان ژورنال: Environmental Research Communications
سال: 2020
ISSN: 2515-7620
DOI: 10.1088/2515-7620/abc92f